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CERTFR-2026-AVI-0880
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Siemens | SIMATIC | SIMATIC S7-PLCSIM Advanced toutes versions pour la vulnérabilité CVE-2026-54429 | ||
| Siemens | N/A | Desigo CC versions antérieures à 9.0.1 | ||
| Siemens | N/A | Desigo CC toutes versions | ||
| Siemens | SIMATIC | SIMATIC S7-1500 versions supérieures ou égales à 3.1.6 pour les vulnérabilités CVE-2021-41617, CVE-2023-28531, CVE-2023-51384, CVE-2023-52927, CVE-2024-26783, CVE-2024-27056, CVE-2024-28956, CVE-2024-36903, CVE-2024-36927, CVE-2024-42079, CVE-2024-46786, CVE-2024-47736, CVE-2024-47809, CVE-2024-49968, CVE-2024-49994, CVE-2024-49998, CVE-2024-50014, CVE-2024-50063, CVE-2024-50164, CVE-2024-50298, CVE-2024-53124, CVE-2024-53170, CVE-2024-54458, CVE-2024-56631, CVE-2024-56703, CVE-2024-56719, CVE-2024-57917, CVE-2024-57924, CVE-2024-57973, CVE-2024-57977, CVE-2024-57979, CVE-2024-58011, CVE-2024-58016, CVE-2024-58020, CVE-2024-58056, CVE-2024-58058, CVE-2024-58061, CVE-2024-58086, CVE-2025-21645, CVE-2025-21648, CVE-2025-21655, CVE-2025-21676, CVE-2025-21682, CVE-2025-21702, CVE-2025-21705, CVE-2025-21706, CVE-2025-21707, CVE-2025-21718, CVE-2025-21731, CVE-2025-21745, CVE-2025-21758, CVE-2025-21760, CVE-2025-21764, CVE-2025-21765, CVE-2025-21780, CVE-2025-21795, CVE-2025-21796, CVE-2025-21802, CVE-2025-21814, CVE-2025-21846, CVE-2025-21853, CVE-2025-21861, CVE-2025-21864, CVE-2025-21867, CVE-2025-21875, CVE-2025-21887, CVE-2025-21913, CVE-2025-21919, CVE-2025-21925, CVE-2025-21926, CVE-2025-21938, CVE-2025-21959, CVE-2025-21999, CVE-2025-22005, CVE-2025-22015, CVE-2025-22055, CVE-2025-22056, CVE-2025-22060, CVE-2025-22083, CVE-2025-22090, CVE-2025-22095, CVE-2025-22107, CVE-2025-22111, CVE-2025-22121, CVE-2025-23136, CVE-2025-23143, CVE-2025-37785, CVE-2025-37909, CVE-2025-37917, CVE-2025-37945, CVE-2025-37959, CVE-2025-37964, CVE-2025-37972, CVE-2025-37980, CVE-2025-38125, CVE-2025-38162, CVE-2025-38192, CVE-2025-38201, CVE-2025-38232, CVE-2025-38322, CVE-2025-38591, CVE-2025-38614, CVE-2025-38681, CVE-2025-38704, CVE-2025-38721, CVE-2025-38725, CVE-2025-38727, CVE-2025-38732, CVE-2025-38736, CVE-2025-39681, CVE-2025-39691, CVE-2025-39721, CVE-2025-39748, CVE-2025-39756, CVE-2025-39764, CVE-2025-39770, CVE-2025-39773, CVE-2025-39782, CVE-2025-39795, CVE-2025-39826, CVE-2025-39827, CVE-2025-39845, CVE-2025-39866, CVE-2025-39871, CVE-2025-39931, CVE-2025-39953, CVE-2025-39955, CVE-2025-39964, CVE-2025-39977, CVE-2025-39978, CVE-2025-39980, CVE-2025-40022, CVE-2025-40070, CVE-2025-40078, CVE-2025-40080, CVE-2025-40105, CVE-2025-40135, CVE-2025-40149, CVE-2025-40219, CVE-2025-40261, CVE-2025-40300, CVE-2025-61984, CVE-2025-61985, CVE-2025-68206, CVE-2025-68261, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68291, CVE-2025-68337, CVE-2025-68349, CVE-2025-68363, CVE-2025-68371, CVE-2025-68724, CVE-2025-68725, CVE-2025-68742, CVE-2025-68764, CVE-2025-68773, CVE-2025-68776, CVE-2025-68782, CVE-2025-68787, CVE-2025-68788, CVE-2025-68798, CVE-2025-68803, CVE-2025-68814, CVE-2025-68816, CVE-2025-68818, CVE-2025-68820, CVE-2025-71064, CVE-2025-71075, CVE-2025-71079, CVE-2025-71085, CVE-2025-71086, CVE-2025-71088, CVE-2025-71095, CVE-2025-71097, CVE-2025-71098, CVE-2025-71104, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71120, CVE-2025-71123, CVE-2025-71131, CVE-2025-71161, CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71197, CVE-2025-71221, CVE-2025-71265, CVE-2025-71266, CVE-2025-71267, CVE-2026-3497, CVE-2026-22977, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22992, CVE-2026-22994, CVE-2026-23003, CVE-2026-23005, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23026, CVE-2026-23038, CVE-2026-23054, CVE-2026-23060, CVE-2026-23083, CVE-2026-23084, CVE-2026-23086, CVE-2026-23087, CVE-2026-23095, CVE-2026-23100, CVE-2026-23103, CVE-2026-23110, CVE-2026-23111, CVE-2026-23113, CVE-2026-23154, CVE-2026-23204, CVE-2026-23231, CVE-2026-23242, CVE-2026-23243, CVE-2026-23245, CVE-2026-23270, CVE-2026-23271, CVE-2026-23273, CVE-2026-23274, CVE-2026-23277, CVE-2026-23284, CVE-2026-23287, CVE-2026-23290, CVE-2026-23293, CVE-2026-23300, CVE-2026-23304, CVE-2026-23319, CVE-2026-23321, CVE-2026-23335, CVE-2026-23340, CVE-2026-23343, CVE-2026-23351, CVE-2026-23359, CVE-2026-23365, CVE-2026-23368, CVE-2026-23370, CVE-2026-23378, CVE-2026-23379, CVE-2026-23381, CVE-2026-23391, CVE-2026-23392, CVE-2026-23397, CVE-2026-23398, CVE-2026-23414, CVE-2026-23422, CVE-2026-23434, CVE-2026-23438, CVE-2026-23439, CVE-2026-23446, CVE-2026-23449, CVE-2026-23450, CVE-2026-23452, CVE-2026-23454, CVE-2026-23455, CVE-2026-23456, CVE-2026-23457, CVE-2026-23458, CVE-2026-23463, CVE-2026-23474, CVE-2026-23475, CVE-2026-27135, CVE-2026-31389, CVE-2026-31391, CVE-2026-31396, CVE-2026-31402, CVE-2026-31403, CVE-2026-31411, CVE-2026-31414, CVE-2026-31415, CVE-2026-31416, CVE-2026-31417, CVE-2026-31418, CVE-2026-31421, CVE-2026-31422, CVE-2026-31423, CVE-2026-31424, CVE-2026-31427, CVE-2026-31428, CVE-2026-31431, CVE-2026-31441, CVE-2026-31446, CVE-2026-31447, CVE-2026-31448, CVE-2026-31450, CVE-2026-31452, CVE-2026-31466, CVE-2026-31469, CVE-2026-31485, CVE-2026-31494, CVE-2026-31495, CVE-2026-31496, CVE-2026-31503, CVE-2026-31504, CVE-2026-31507, CVE-2026-31508, CVE-2026-31515, CVE-2026-31518, CVE-2026-31521, CVE-2026-31533, CVE-2026-31546, CVE-2026-31555, CVE-2026-31563, CVE-2026-31565, CVE-2026-31628, CVE-2026-31634, CVE-2026-31649, CVE-2026-31651, CVE-2026-31658, CVE-2026-31664, CVE-2026-31665, CVE-2026-31669, CVE-2026-31670, CVE-2026-31671, CVE-2026-31674, CVE-2026-31680, CVE-2026-31682, CVE-2026-31737, CVE-2026-31752, CVE-2026-31761, CVE-2026-31768, CVE-2026-40355, CVE-2026-41989, CVE-2026-43011, CVE-2026-43024, CVE-2026-43025, CVE-2026-43026, CVE-2026-43027, CVE-2026-43028, CVE-2026-43030, CVE-2026-43033, CVE-2026-43035, CVE-2026-43038, CVE-2026-43040, CVE-2026-43057, CVE-2026-43284, CVE-2026-46174, CVE-2026-46300 et CVE-2026-46333. | ||
| Siemens | N/A | Desigo CC toutes versions pour la vulnérabilité CVE-2025-15467 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "SIMATIC S7-PLCSIM Advanced toutes versions pour la vuln\u00e9rabilit\u00e9 CVE-2026-54429",
"product": {
"name": "SIMATIC",
"vendor": {
"name": "Siemens",
"scada": true
}
}
},
{
"description": "Desigo CC versions ant\u00e9rieures \u00e0 9.0.1",
"product": {
"name": "N/A",
"vendor": {
"name": "Siemens",
"scada": true
}
}
},
{
"description": "Desigo CC toutes versions",
"product": {
"name": "N/A",
"vendor": {
"name": "Siemens",
"scada": true
}
}
},
{
"description": "SIMATIC S7-1500 versions sup\u00e9rieures ou \u00e9gales \u00e0 3.1.6 pour les vuln\u00e9rabilit\u00e9s CVE-2021-41617, CVE-2023-28531, CVE-2023-51384, CVE-2023-52927, CVE-2024-26783, CVE-2024-27056, CVE-2024-28956, CVE-2024-36903, CVE-2024-36927, CVE-2024-42079, CVE-2024-46786, CVE-2024-47736, CVE-2024-47809, CVE-2024-49968, CVE-2024-49994, CVE-2024-49998, CVE-2024-50014, CVE-2024-50063, CVE-2024-50164, CVE-2024-50298, CVE-2024-53124, CVE-2024-53170, CVE-2024-54458, CVE-2024-56631, CVE-2024-56703, CVE-2024-56719, CVE-2024-57917, CVE-2024-57924, CVE-2024-57973, CVE-2024-57977, CVE-2024-57979, CVE-2024-58011, CVE-2024-58016, CVE-2024-58020, CVE-2024-58056, CVE-2024-58058, CVE-2024-58061, CVE-2024-58086, CVE-2025-21645, CVE-2025-21648, CVE-2025-21655, CVE-2025-21676, CVE-2025-21682, CVE-2025-21702, CVE-2025-21705, CVE-2025-21706, CVE-2025-21707, CVE-2025-21718, CVE-2025-21731, CVE-2025-21745, CVE-2025-21758, CVE-2025-21760, CVE-2025-21764, CVE-2025-21765, CVE-2025-21780, CVE-2025-21795, CVE-2025-21796, CVE-2025-21802, CVE-2025-21814, CVE-2025-21846, CVE-2025-21853, CVE-2025-21861, CVE-2025-21864, CVE-2025-21867, CVE-2025-21875, CVE-2025-21887, CVE-2025-21913, CVE-2025-21919, CVE-2025-21925, CVE-2025-21926, CVE-2025-21938, CVE-2025-21959, CVE-2025-21999, CVE-2025-22005, CVE-2025-22015, CVE-2025-22055, CVE-2025-22056, CVE-2025-22060, CVE-2025-22083, CVE-2025-22090, CVE-2025-22095, CVE-2025-22107, CVE-2025-22111, CVE-2025-22121, CVE-2025-23136, CVE-2025-23143, CVE-2025-37785, CVE-2025-37909, CVE-2025-37917, CVE-2025-37945, CVE-2025-37959, CVE-2025-37964, CVE-2025-37972, CVE-2025-37980, CVE-2025-38125, CVE-2025-38162, CVE-2025-38192, CVE-2025-38201, CVE-2025-38232, CVE-2025-38322, CVE-2025-38591, CVE-2025-38614, CVE-2025-38681, CVE-2025-38704, CVE-2025-38721, CVE-2025-38725, CVE-2025-38727, CVE-2025-38732, CVE-2025-38736, CVE-2025-39681, CVE-2025-39691, CVE-2025-39721, CVE-2025-39748, CVE-2025-39756, CVE-2025-39764, CVE-2025-39770, CVE-2025-39773, CVE-2025-39782, CVE-2025-39795, CVE-2025-39826, CVE-2025-39827, CVE-2025-39845, CVE-2025-39866, CVE-2025-39871, CVE-2025-39931, CVE-2025-39953, CVE-2025-39955, CVE-2025-39964, CVE-2025-39977, CVE-2025-39978, CVE-2025-39980, CVE-2025-40022, CVE-2025-40070, CVE-2025-40078, CVE-2025-40080, CVE-2025-40105, CVE-2025-40135, CVE-2025-40149, CVE-2025-40219, CVE-2025-40261, CVE-2025-40300, CVE-2025-61984, CVE-2025-61985, CVE-2025-68206, CVE-2025-68261, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68291, CVE-2025-68337, CVE-2025-68349, CVE-2025-68363, CVE-2025-68371, CVE-2025-68724, CVE-2025-68725, CVE-2025-68742, CVE-2025-68764, CVE-2025-68773, CVE-2025-68776, CVE-2025-68782, CVE-2025-68787, CVE-2025-68788, CVE-2025-68798, CVE-2025-68803, CVE-2025-68814, CVE-2025-68816, CVE-2025-68818, CVE-2025-68820, CVE-2025-71064, CVE-2025-71075, CVE-2025-71079, CVE-2025-71085, CVE-2025-71086, CVE-2025-71088, CVE-2025-71095, CVE-2025-71097, CVE-2025-71098, CVE-2025-71104, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71120, CVE-2025-71123, CVE-2025-71131, CVE-2025-71161, CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71197, CVE-2025-71221, CVE-2025-71265, CVE-2025-71266, CVE-2025-71267, CVE-2026-3497, CVE-2026-22977, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22992, CVE-2026-22994, CVE-2026-23003, CVE-2026-23005, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23026, CVE-2026-23038, CVE-2026-23054, CVE-2026-23060, CVE-2026-23083, CVE-2026-23084, CVE-2026-23086, CVE-2026-23087, CVE-2026-23095, CVE-2026-23100, CVE-2026-23103, CVE-2026-23110, CVE-2026-23111, CVE-2026-23113, CVE-2026-23154, CVE-2026-23204, CVE-2026-23231, CVE-2026-23242, CVE-2026-23243, CVE-2026-23245, CVE-2026-23270, CVE-2026-23271, CVE-2026-23273, CVE-2026-23274, CVE-2026-23277, CVE-2026-23284, CVE-2026-23287, CVE-2026-23290, CVE-2026-23293, CVE-2026-23300, CVE-2026-23304, CVE-2026-23319, CVE-2026-23321, CVE-2026-23335, CVE-2026-23340, CVE-2026-23343, CVE-2026-23351, CVE-2026-23359, CVE-2026-23365, CVE-2026-23368, CVE-2026-23370, CVE-2026-23378, CVE-2026-23379, CVE-2026-23381, CVE-2026-23391, CVE-2026-23392, CVE-2026-23397, CVE-2026-23398, CVE-2026-23414, CVE-2026-23422, CVE-2026-23434, CVE-2026-23438, CVE-2026-23439, CVE-2026-23446, CVE-2026-23449, CVE-2026-23450, CVE-2026-23452, CVE-2026-23454, CVE-2026-23455, CVE-2026-23456, CVE-2026-23457, CVE-2026-23458, CVE-2026-23463, CVE-2026-23474, CVE-2026-23475, CVE-2026-27135, CVE-2026-31389, CVE-2026-31391, CVE-2026-31396, CVE-2026-31402, CVE-2026-31403, CVE-2026-31411, CVE-2026-31414, CVE-2026-31415, CVE-2026-31416, CVE-2026-31417, CVE-2026-31418, CVE-2026-31421, CVE-2026-31422, CVE-2026-31423, CVE-2026-31424, CVE-2026-31427, CVE-2026-31428, CVE-2026-31431, CVE-2026-31441, CVE-2026-31446, CVE-2026-31447, CVE-2026-31448, CVE-2026-31450, CVE-2026-31452, CVE-2026-31466, CVE-2026-31469, CVE-2026-31485, CVE-2026-31494, CVE-2026-31495, CVE-2026-31496, CVE-2026-31503, CVE-2026-31504, CVE-2026-31507, CVE-2026-31508, CVE-2026-31515, CVE-2026-31518, CVE-2026-31521, CVE-2026-31533, CVE-2026-31546, CVE-2026-31555, CVE-2026-31563, CVE-2026-31565, CVE-2026-31628, CVE-2026-31634, CVE-2026-31649, CVE-2026-31651, CVE-2026-31658, CVE-2026-31664, CVE-2026-31665, CVE-2026-31669, CVE-2026-31670, CVE-2026-31671, CVE-2026-31674, CVE-2026-31680, CVE-2026-31682, CVE-2026-31737, CVE-2026-31752, CVE-2026-31761, CVE-2026-31768, CVE-2026-40355, CVE-2026-41989, CVE-2026-43011, CVE-2026-43024, CVE-2026-43025, CVE-2026-43026, CVE-2026-43027, CVE-2026-43028, CVE-2026-43030, CVE-2026-43033, CVE-2026-43035, CVE-2026-43038, CVE-2026-43040, CVE-2026-43057, CVE-2026-43284, CVE-2026-46174, CVE-2026-46300 et CVE-2026-46333.",
"product": {
"name": "SIMATIC",
"vendor": {
"name": "Siemens",
"scada": true
}
}
},
{
"description": "Desigo CC toutes versions pour la vuln\u00e9rabilit\u00e9 CVE-2025-15467",
"product": {
"name": "N/A",
"vendor": {
"name": "Siemens",
"scada": true
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2021-41617",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-41617"
},
{
"name": "CVE-2023-28531",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-28531"
},
{
"name": "CVE-2023-51384",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-51384"
},
{
"name": "CVE-2024-27056",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-27056"
},
{
"name": "CVE-2024-26783",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26783"
},
{
"name": "CVE-2025-38322",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38322"
},
{
"name": "CVE-2025-38614",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38614"
},
{
"name": "CVE-2025-38681",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38681"
},
{
"name": "CVE-2025-38721",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38721"
},
{
"name": "CVE-2025-38725",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38725"
},
{
"name": "CVE-2025-38727",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38727"
},
{
"name": "CVE-2025-38732",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38732"
},
{
"name": "CVE-2025-38736",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38736"
},
{
"name": "CVE-2025-39681",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39681"
},
{
"name": "CVE-2025-39691",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39691"
},
{
"name": "CVE-2025-39721",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39721"
},
{
"name": "CVE-2025-39756",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39756"
},
{
"name": "CVE-2025-39770",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39770"
},
{
"name": "CVE-2025-39773",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39773"
},
{
"name": "CVE-2025-39782",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39782"
},
{
"name": "CVE-2025-39795",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39795"
},
{
"name": "CVE-2025-39826",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39826"
},
{
"name": "CVE-2025-39827",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39827"
},
{
"name": "CVE-2025-39845",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39845"
},
{
"name": "CVE-2025-39866",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39866"
},
{
"name": "CVE-2025-40300",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40300"
},
{
"name": "CVE-2025-61984",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-61984"
},
{
"name": "CVE-2024-36903",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36903"
},
{
"name": "CVE-2025-39764",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39764"
},
{
"name": "CVE-2025-39871",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39871"
},
{
"name": "CVE-2025-39931",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39931"
},
{
"name": "CVE-2025-39953",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39953"
},
{
"name": "CVE-2025-39955",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39955"
},
{
"name": "CVE-2025-39964",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39964"
},
{
"name": "CVE-2025-39977",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39977"
},
{
"name": "CVE-2025-39980",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39980"
},
{
"name": "CVE-2025-61985",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-61985"
},
{
"name": "CVE-2025-38232",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38232"
},
{
"name": "CVE-2024-36927",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36927"
},
{
"name": "CVE-2025-40078",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40078"
},
{
"name": "CVE-2025-40080",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40080"
},
{
"name": "CVE-2024-42079",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42079"
},
{
"name": "CVE-2025-40105",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40105"
},
{
"name": "CVE-2025-40022",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40022"
},
{
"name": "CVE-2025-40070",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40070"
},
{
"name": "CVE-2024-46786",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46786"
},
{
"name": "CVE-2025-39978",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39978"
},
{
"name": "CVE-2025-40219",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40219"
},
{
"name": "CVE-2025-40261",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40261"
},
{
"name": "CVE-2025-39748",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39748"
},
{
"name": "CVE-2024-50014",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50014"
},
{
"name": "CVE-2024-50063",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50063"
},
{
"name": "CVE-2024-49968",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49968"
},
{
"name": "CVE-2024-50298",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50298"
},
{
"name": "CVE-2024-56631",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56631"
},
{
"name": "CVE-2024-47809",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47809"
},
{
"name": "CVE-2024-49998",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49998"
},
{
"name": "CVE-2024-53170",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53170"
},
{
"name": "CVE-2025-21645",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21645"
},
{
"name": "CVE-2024-57917",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57917"
},
{
"name": "CVE-2025-21655",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21655"
},
{
"name": "CVE-2025-21676",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21676"
},
{
"name": "CVE-2025-21682",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21682"
},
{
"name": "CVE-2024-49994",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49994"
},
{
"name": "CVE-2024-50164",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50164"
},
{
"name": "CVE-2024-53124",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53124"
},
{
"name": "CVE-2024-56703",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56703"
},
{
"name": "CVE-2025-21648",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21648"
},
{
"name": "CVE-2024-47736",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47736"
},
{
"name": "CVE-2024-57979",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57979"
},
{
"name": "CVE-2025-21705",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21705"
},
{
"name": "CVE-2025-21795",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21795"
},
{
"name": "CVE-2025-21802",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21802"
},
{
"name": "CVE-2025-21718",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21718"
},
{
"name": "CVE-2025-21780",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21780"
},
{
"name": "CVE-2024-56719",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56719"
},
{
"name": "CVE-2024-57924",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57924"
},
{
"name": "CVE-2024-54458",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-54458"
},
{
"name": "CVE-2024-57973",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57973"
},
{
"name": "CVE-2024-58011",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58011"
},
{
"name": "CVE-2024-58016",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58016"
},
{
"name": "CVE-2024-58020",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58020"
},
{
"name": "CVE-2024-58056",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58056"
},
{
"name": "CVE-2024-58058",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58058"
},
{
"name": "CVE-2024-58061",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58061"
},
{
"name": "CVE-2024-58086",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58086"
},
{
"name": "CVE-2025-21706",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21706"
},
{
"name": "CVE-2025-21707",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21707"
},
{
"name": "CVE-2025-21731",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21731"
},
{
"name": "CVE-2025-21745",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21745"
},
{
"name": "CVE-2025-21758",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21758"
},
{
"name": "CVE-2025-21760",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21760"
},
{
"name": "CVE-2025-21764",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21764"
},
{
"name": "CVE-2025-21765",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21765"
},
{
"name": "CVE-2025-21796",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21796"
},
{
"name": "CVE-2025-21814",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21814"
},
{
"name": "CVE-2023-52927",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52927"
},
{
"name": "CVE-2025-21846",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21846"
},
{
"name": "CVE-2025-21861",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21861"
},
{
"name": "CVE-2025-21864",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21864"
},
{
"name": "CVE-2025-21702",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21702"
},
{
"name": "CVE-2024-57977",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57977"
},
{
"name": "CVE-2025-21867",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21867"
},
{
"name": "CVE-2025-21875",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21875"
},
{
"name": "CVE-2025-21887",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21887"
},
{
"name": "CVE-2025-21913",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21913"
},
{
"name": "CVE-2025-21919",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21919"
},
{
"name": "CVE-2025-21925",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21925"
},
{
"name": "CVE-2025-21926",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21926"
},
{
"name": "CVE-2025-21938",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21938"
},
{
"name": "CVE-2025-21959",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21959"
},
{
"name": "CVE-2025-21999",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21999"
},
{
"name": "CVE-2025-22005",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22005"
},
{
"name": "CVE-2025-22015",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22015"
},
{
"name": "CVE-2025-21853",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21853"
},
{
"name": "CVE-2025-22055",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22055"
},
{
"name": "CVE-2025-22056",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22056"
},
{
"name": "CVE-2025-22060",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22060"
},
{
"name": "CVE-2025-22095",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22095"
},
{
"name": "CVE-2025-23136",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23136"
},
{
"name": "CVE-2025-37785",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37785"
},
{
"name": "CVE-2024-28956",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-28956"
},
{
"name": "CVE-2025-22090",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22090"
},
{
"name": "CVE-2025-22107",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22107"
},
{
"name": "CVE-2025-22121",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22121"
},
{
"name": "CVE-2025-37909",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37909"
},
{
"name": "CVE-2025-37917",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37917"
},
{
"name": "CVE-2025-37959",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37959"
},
{
"name": "CVE-2025-37964",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37964"
},
{
"name": "CVE-2025-37972",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37972"
},
{
"name": "CVE-2025-37980",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37980"
},
{
"name": "CVE-2025-22083",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22083"
},
{
"name": "CVE-2025-22111",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22111"
},
{
"name": "CVE-2025-23143",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23143"
},
{
"name": "CVE-2025-37945",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37945"
},
{
"name": "CVE-2025-38162",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38162"
},
{
"name": "CVE-2025-38192",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38192"
},
{
"name": "CVE-2025-38125",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38125"
},
{
"name": "CVE-2025-38201",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38201"
},
{
"name": "CVE-2025-38591",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38591"
},
{
"name": "CVE-2025-40149",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40149"
},
{
"name": "CVE-2025-40135",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40135"
},
{
"name": "CVE-2025-15467",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-15467"
},
{
"name": "CVE-2025-68206",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68206"
},
{
"name": "CVE-2025-68264",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68264"
},
{
"name": "CVE-2025-68724",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68724"
},
{
"name": "CVE-2025-68742",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68742"
},
{
"name": "CVE-2025-38704",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38704"
},
{
"name": "CVE-2025-68363",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68363"
},
{
"name": "CVE-2025-71120",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71120"
},
{
"name": "CVE-2025-68261",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68261"
},
{
"name": "CVE-2025-68266",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68266"
},
{
"name": "CVE-2025-68291",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68291"
},
{
"name": "CVE-2025-68337",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68337"
},
{
"name": "CVE-2025-68349",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68349"
},
{
"name": "CVE-2025-68371",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68371"
},
{
"name": "CVE-2025-68725",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68725"
},
{
"name": "CVE-2025-68764",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68764"
},
{
"name": "CVE-2025-68773",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68773"
},
{
"name": "CVE-2025-68776",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68776"
},
{
"name": "CVE-2025-68782",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68782"
},
{
"name": "CVE-2025-68787",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68787"
},
{
"name": "CVE-2025-68788",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68788"
},
{
"name": "CVE-2025-68798",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68798"
},
{
"name": "CVE-2025-68803",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68803"
},
{
"name": "CVE-2025-68814",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68814"
},
{
"name": "CVE-2025-68816",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68816"
},
{
"name": "CVE-2025-68818",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68818"
},
{
"name": "CVE-2025-68820",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68820"
},
{
"name": "CVE-2025-71064",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71064"
},
{
"name": "CVE-2025-71075",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71075"
},
{
"name": "CVE-2025-71079",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71079"
},
{
"name": "CVE-2025-71085",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71085"
},
{
"name": "CVE-2025-71086",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71086"
},
{
"name": "CVE-2025-71088",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71088"
},
{
"name": "CVE-2025-71095",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71095"
},
{
"name": "CVE-2025-71097",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71097"
},
{
"name": "CVE-2025-71098",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71098"
},
{
"name": "CVE-2025-71104",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71104"
},
{
"name": "CVE-2025-71112",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71112"
},
{
"name": "CVE-2025-71113",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71113"
},
{
"name": "CVE-2025-71114",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71114"
},
{
"name": "CVE-2025-71123",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71123"
},
{
"name": "CVE-2025-71131",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71131"
},
{
"name": "CVE-2025-71162",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71162"
},
{
"name": "CVE-2025-71163",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71163"
},
{
"name": "CVE-2025-71185",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71185"
},
{
"name": "CVE-2025-71186",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71186"
},
{
"name": "CVE-2025-71189",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71189"
},
{
"name": "CVE-2025-71190",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71190"
},
{
"name": "CVE-2025-71191",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71191"
},
{
"name": "CVE-2025-71197",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71197"
},
{
"name": "CVE-2026-22977",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22977"
},
{
"name": "CVE-2026-22979",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22979"
},
{
"name": "CVE-2026-22980",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22980"
},
{
"name": "CVE-2026-22982",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22982"
},
{
"name": "CVE-2026-22992",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22992"
},
{
"name": "CVE-2026-22994",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-22994"
},
{
"name": "CVE-2026-23003",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23003"
},
{
"name": "CVE-2026-23005",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23005"
},
{
"name": "CVE-2026-23010",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23010"
},
{
"name": "CVE-2026-23011",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23011"
},
{
"name": "CVE-2026-23019",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23019"
},
{
"name": "CVE-2026-23026",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23026"
},
{
"name": "CVE-2026-23038",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23038"
},
{
"name": "CVE-2026-23054",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23054"
},
{
"name": "CVE-2026-23060",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23060"
},
{
"name": "CVE-2026-23083",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23083"
},
{
"name": "CVE-2026-23084",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23084"
},
{
"name": "CVE-2026-23086",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23086"
},
{
"name": "CVE-2026-23087",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23087"
},
{
"name": "CVE-2026-23095",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23095"
},
{
"name": "CVE-2026-23103",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23103"
},
{
"name": "CVE-2026-23110",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23110"
},
{
"name": "CVE-2026-23111",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23111"
},
{
"name": "CVE-2026-23204",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23204"
},
{
"name": "CVE-2026-23100",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23100"
},
{
"name": "CVE-2025-68265",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68265"
},
{
"name": "CVE-2025-71161",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71161"
},
{
"name": "CVE-2025-71221",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71221"
},
{
"name": "CVE-2026-23113",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23113"
},
{
"name": "CVE-2026-23154",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23154"
},
{
"name": "CVE-2026-23231",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23231"
},
{
"name": "CVE-2026-3497",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3497"
},
{
"name": "CVE-2025-71265",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71265"
},
{
"name": "CVE-2025-71266",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71266"
},
{
"name": "CVE-2025-71267",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71267"
},
{
"name": "CVE-2026-23242",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23242"
},
{
"name": "CVE-2026-23243",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23243"
},
{
"name": "CVE-2026-27135",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-27135"
},
{
"name": "CVE-2026-23245",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23245"
},
{
"name": "CVE-2026-23271",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23271"
},
{
"name": "CVE-2026-23274",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23274"
},
{
"name": "CVE-2026-23277",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23277"
},
{
"name": "CVE-2026-23284",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23284"
},
{
"name": "CVE-2026-23290",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23290"
},
{
"name": "CVE-2026-23293",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23293"
},
{
"name": "CVE-2026-23300",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23300"
},
{
"name": "CVE-2026-23304",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23304"
},
{
"name": "CVE-2026-23319",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23319"
},
{
"name": "CVE-2026-23340",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23340"
},
{
"name": "CVE-2026-23343",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23343"
},
{
"name": "CVE-2026-23351",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23351"
},
{
"name": "CVE-2026-23359",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23359"
},
{
"name": "CVE-2026-23365",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23365"
},
{
"name": "CVE-2026-23368",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23368"
},
{
"name": "CVE-2026-23370",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23370"
},
{
"name": "CVE-2026-23379",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23379"
},
{
"name": "CVE-2026-23381",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23381"
},
{
"name": "CVE-2026-23391",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23391"
},
{
"name": "CVE-2026-23392",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23392"
},
{
"name": "CVE-2026-23397",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23397"
},
{
"name": "CVE-2026-23398",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23398"
},
{
"name": "CVE-2026-31414",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31414"
},
{
"name": "CVE-2026-31416",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31416"
},
{
"name": "CVE-2026-31417",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31417"
},
{
"name": "CVE-2026-31418",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31418"
},
{
"name": "CVE-2026-31421",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31421"
},
{
"name": "CVE-2026-31422",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31422"
},
{
"name": "CVE-2026-31423",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31423"
},
{
"name": "CVE-2026-31424",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31424"
},
{
"name": "CVE-2026-31427",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31427"
},
{
"name": "CVE-2026-31428",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31428"
},
{
"name": "CVE-2026-23270",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23270"
},
{
"name": "CVE-2026-23335",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23335"
},
{
"name": "CVE-2026-23414",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23414"
},
{
"name": "CVE-2026-31402",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31402"
},
{
"name": "CVE-2026-31431",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31431"
},
{
"name": "CVE-2026-31441",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31441"
},
{
"name": "CVE-2026-31446",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31446"
},
{
"name": "CVE-2026-31447",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31447"
},
{
"name": "CVE-2026-31448",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31448"
},
{
"name": "CVE-2026-31450",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31450"
},
{
"name": "CVE-2026-31452",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31452"
},
{
"name": "CVE-2026-31469",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31469"
},
{
"name": "CVE-2026-31485",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31485"
},
{
"name": "CVE-2026-31494",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31494"
},
{
"name": "CVE-2026-31495",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31495"
},
{
"name": "CVE-2026-31496",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31496"
},
{
"name": "CVE-2026-31503",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31503"
},
{
"name": "CVE-2026-31504",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31504"
},
{
"name": "CVE-2026-31507",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31507"
},
{
"name": "CVE-2026-31515",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31515"
},
{
"name": "CVE-2026-31518",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31518"
},
{
"name": "CVE-2026-31521",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31521"
},
{
"name": "CVE-2026-31555",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31555"
},
{
"name": "CVE-2026-31563",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31563"
},
{
"name": "CVE-2026-31565",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31565"
},
{
"name": "CVE-2026-31674",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31674"
},
{
"name": "CVE-2026-31680",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31680"
},
{
"name": "CVE-2026-31682",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31682"
},
{
"name": "CVE-2026-41989",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-41989"
},
{
"name": "CVE-2026-31508",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31508"
},
{
"name": "CVE-2026-31533",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31533"
},
{
"name": "CVE-2026-31628",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31628"
},
{
"name": "CVE-2026-31634",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31634"
},
{
"name": "CVE-2026-31649",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31649"
},
{
"name": "CVE-2026-31651",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31651"
},
{
"name": "CVE-2026-31658",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31658"
},
{
"name": "CVE-2026-31664",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31664"
},
{
"name": "CVE-2026-31665",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31665"
},
{
"name": "CVE-2026-31669",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31669"
},
{
"name": "CVE-2026-31670",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31670"
},
{
"name": "CVE-2026-31671",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31671"
},
{
"name": "CVE-2026-43033",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43033"
},
{
"name": "CVE-2026-23273",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23273"
},
{
"name": "CVE-2026-23287",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23287"
},
{
"name": "CVE-2026-23321",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23321"
},
{
"name": "CVE-2026-23378",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23378"
},
{
"name": "CVE-2026-23422",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23422"
},
{
"name": "CVE-2026-23434",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23434"
},
{
"name": "CVE-2026-23438",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23438"
},
{
"name": "CVE-2026-23439",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23439"
},
{
"name": "CVE-2026-23446",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23446"
},
{
"name": "CVE-2026-23449",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23449"
},
{
"name": "CVE-2026-23450",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23450"
},
{
"name": "CVE-2026-23452",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23452"
},
{
"name": "CVE-2026-23454",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23454"
},
{
"name": "CVE-2026-23455",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23455"
},
{
"name": "CVE-2026-23456",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23456"
},
{
"name": "CVE-2026-23457",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23457"
},
{
"name": "CVE-2026-23458",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23458"
},
{
"name": "CVE-2026-23463",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23463"
},
{
"name": "CVE-2026-23474",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23474"
},
{
"name": "CVE-2026-23475",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23475"
},
{
"name": "CVE-2026-31389",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31389"
},
{
"name": "CVE-2026-31391",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31391"
},
{
"name": "CVE-2026-31396",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31396"
},
{
"name": "CVE-2026-31403",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31403"
},
{
"name": "CVE-2026-31411",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31411"
},
{
"name": "CVE-2026-31415",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31415"
},
{
"name": "CVE-2026-31466",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31466"
},
{
"name": "CVE-2026-31546",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31546"
},
{
"name": "CVE-2026-31737",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31737"
},
{
"name": "CVE-2026-31752",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31752"
},
{
"name": "CVE-2026-31761",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31761"
},
{
"name": "CVE-2026-31768",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31768"
},
{
"name": "CVE-2026-43011",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43011"
},
{
"name": "CVE-2026-43024",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43024"
},
{
"name": "CVE-2026-43025",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43025"
},
{
"name": "CVE-2026-43026",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43026"
},
{
"name": "CVE-2026-43027",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43027"
},
{
"name": "CVE-2026-43028",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43028"
},
{
"name": "CVE-2026-43030",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43030"
},
{
"name": "CVE-2026-43035",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43035"
},
{
"name": "CVE-2026-43038",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43038"
},
{
"name": "CVE-2026-43040",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43040"
},
{
"name": "CVE-2026-43057",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43057"
},
{
"name": "CVE-2026-40355",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-40355"
},
{
"name": "CVE-2026-43284",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43284"
},
{
"name": "CVE-2026-46333",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46333"
},
{
"name": "CVE-2026-46300",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46300"
},
{
"name": "CVE-2026-46174",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46174"
},
{
"name": "CVE-2026-54429",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-54429"
}
],
"initial_release_date": "2026-07-15T00:00:00",
"last_revision_date": "2026-07-15T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0880",
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],
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{
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},
{
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},
{
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{
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{
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"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Siemens",
"vendor_advisories": [
{
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"title": "Bulletin de s\u00e9curit\u00e9 Siemens SSA-828211",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-828211.html"
},
{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"published_at": "2026-07-14",
"title": "Bulletin de s\u00e9curit\u00e9 Siemens SSA-734552",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-734552.html"
}
]
}
CVE-2025-68349 (GCVE-0-2025-68349)
Vulnerability from cvelistv5
Published
2025-12-24 10:32
Modified
2026-08-05 12:10
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid
Fixes a crash when layout is null during this call stack:
write_inode
-> nfs4_write_inode
-> pnfs_layoutcommit_inode
pnfs_set_layoutcommit relies on the lseg refcount to keep the layout
around. Need to clear NFS_INO_LAYOUTCOMMIT otherwise we might attempt
to reference a null layout.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a Version: fe1cf9469d7bcb6af27e42eb555a41b0135bce4a |
||
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CVE-2026-31391 (GCVE-0-2026-31391)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: atmel-sha204a - Fix OOM ->tfm_count leak
If memory allocation fails, decrement ->tfm_count to avoid blocking
future reads.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: da001fb651b00e1deeaf24767dd691ae8152a4f5 Version: da001fb651b00e1deeaf24767dd691ae8152a4f5 Version: da001fb651b00e1deeaf24767dd691ae8152a4f5 Version: da001fb651b00e1deeaf24767dd691ae8152a4f5 Version: da001fb651b00e1deeaf24767dd691ae8152a4f5 Version: da001fb651b00e1deeaf24767dd691ae8152a4f5 Version: da001fb651b00e1deeaf24767dd691ae8152a4f5 |
||
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CVE-2026-23243 (GCVE-0-2026-23243)
Vulnerability from cvelistv5
Published
2026-03-18 10:05
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/umad: Reject negative data_len in ib_umad_write
ib_umad_write computes data_len from user-controlled count and the
MAD header sizes. With a mismatched user MAD header size and RMPP
header length, data_len can become negative and reach ib_create_send_mad().
This can make the padding calculation exceed the segment size and trigger
an out-of-bounds memset in alloc_send_rmpp_list().
Add an explicit check to reject negative data_len before creating the
send buffer.
KASAN splat:
[ 211.363464] BUG: KASAN: slab-out-of-bounds in ib_create_send_mad+0xa01/0x11b0
[ 211.364077] Write of size 220 at addr ffff88800c3fa1f8 by task spray_thread/102
[ 211.365867] ib_create_send_mad+0xa01/0x11b0
[ 211.365887] ib_umad_write+0x853/0x1c80
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2be8e3ee8efd6f99ce454115c29d09750915021a Version: 2be8e3ee8efd6f99ce454115c29d09750915021a Version: 2be8e3ee8efd6f99ce454115c29d09750915021a Version: 2be8e3ee8efd6f99ce454115c29d09750915021a Version: 2be8e3ee8efd6f99ce454115c29d09750915021a Version: 2be8e3ee8efd6f99ce454115c29d09750915021a Version: 2be8e3ee8efd6f99ce454115c29d09750915021a Version: 2be8e3ee8efd6f99ce454115c29d09750915021a |
||
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CVE-2025-23136 (GCVE-0-2025-23136)
Vulnerability from cvelistv5
Published
2025-04-16 14:13
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
thermal: int340x: Add NULL check for adev
Not all devices have an ACPI companion fwnode, so adev might be NULL.
This is similar to the commit cd2fd6eab480
("platform/x86: int3472: Check for adev == NULL").
Add a check for adev not being set and return -ENODEV in that case to
avoid a possible NULL pointer deref in int3402_thermal_probe().
Note, under the same directory, int3400_thermal_probe() has such a
check.
[ rjw: Subject edit, added Fixes: ]
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Version: 77e337c6e23e3b9d22e09ffec202a80f755a54c2 |
||
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CVE-2024-47809 (GCVE-0-2024-47809)
Vulnerability from cvelistv5
Published
2025-01-11 12:25
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dlm: fix possible lkb_resource null dereference
This patch fixes a possible null pointer dereference when this function is
called from request_lock() as lkb->lkb_resource is not assigned yet,
only after validate_lock_args() by calling attach_lkb(). Another issue
is that a resource name could be a non printable bytearray and we cannot
assume to be ASCII coded.
The log functionality is probably never being hit when DLM is used in
normal way and no debug logging is enabled. The null pointer dereference
can only occur on a new created lkb that does not have the resource
assigned yet, it probably never hits the null pointer dereference but we
should be sure that other changes might not change this behaviour and we
actually can hit the mentioned null pointer dereference.
In this patch we just drop the printout of the resource name, the lkb id
is enough to make a possible connection to a resource name if this
exists.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-38681 (GCVE-0-2025-38681)
Vulnerability from cvelistv5
Published
2025-09-04 15:32
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/ptdump: take the memory hotplug lock inside ptdump_walk_pgd()
Memory hot remove unmaps and tears down various kernel page table regions
as required. The ptdump code can race with concurrent modifications of
the kernel page tables. When leaf entries are modified concurrently, the
dump code may log stale or inconsistent information for a VA range, but
this is otherwise not harmful.
But when intermediate levels of kernel page table are freed, the dump code
will continue to use memory that has been freed and potentially
reallocated for another purpose. In such cases, the ptdump code may
dereference bogus addresses, leading to a number of potential problems.
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riscv and s390 take memory hotplug lock, while dumping kernel page table
via the sysfs interface /sys/kernel/debug/kernel_page_tables.
Similar race condition exists while checking for pages that might have
been marked W+X via /sys/kernel/debug/kernel_page_tables/check_wx_pages
which in turn calls ptdump_check_wx(). Instead of solving this race
condition again, let's just move the memory hotplug lock inside generic
ptdump_check_wx() which will benefit both the scenarios.
Drop get_online_mems() and put_online_mems() combination from all existing
platform ptdump code paths.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2025-71114 (GCVE-0-2025-71114)
Vulnerability from cvelistv5
Published
2026-01-14 15:06
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
via_wdt: fix critical boot hang due to unnamed resource allocation
The VIA watchdog driver uses allocate_resource() to reserve a MMIO
region for the watchdog control register. However, the allocated
resource was not given a name, which causes the kernel resource tree
to contain an entry marked as "<BAD>" under /proc/iomem on x86
platforms.
During boot, this unnamed resource can lead to a critical hang because
subsequent resource lookups and conflict checks fail to handle the
invalid entry properly.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d Version: dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d Version: dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d Version: dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d Version: dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d Version: dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d Version: dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d |
||
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CVE-2024-53124 (GCVE-0-2024-53124)
Vulnerability from cvelistv5
Published
2024-12-02 13:44
Modified
2026-08-05 11:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix data-races around sk->sk_forward_alloc
Syzkaller reported this warning:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 16 at net/ipv4/af_inet.c:156 inet_sock_destruct+0x1c5/0x1e0
Modules linked in:
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.12.0-rc5 #26
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:inet_sock_destruct+0x1c5/0x1e0
Code: 24 12 4c 89 e2 5b 48 c7 c7 98 ec bb 82 41 5c e9 d1 18 17 ff 4c 89 e6 5b 48 c7 c7 d0 ec bb 82 41 5c e9 bf 18 17 ff 0f 0b eb 83 <0f> 0b eb 97 0f 0b eb 87 0f 0b e9 68 ff ff ff 66 66 2e 0f 1f 84 00
RSP: 0018:ffffc9000008bd90 EFLAGS: 00010206
RAX: 0000000000000300 RBX: ffff88810b172a90 RCX: 0000000000000007
RDX: 0000000000000002 RSI: 0000000000000300 RDI: ffff88810b172a00
RBP: ffff88810b172a00 R08: ffff888104273c00 R09: 0000000000100007
R10: 0000000000020000 R11: 0000000000000006 R12: ffff88810b172a00
R13: 0000000000000004 R14: 0000000000000000 R15: ffff888237c31f78
FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc63fecac8 CR3: 000000000342e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? __warn+0x88/0x130
? inet_sock_destruct+0x1c5/0x1e0
? report_bug+0x18e/0x1a0
? handle_bug+0x53/0x90
? exc_invalid_op+0x18/0x70
? asm_exc_invalid_op+0x1a/0x20
? inet_sock_destruct+0x1c5/0x1e0
__sk_destruct+0x2a/0x200
rcu_do_batch+0x1aa/0x530
? rcu_do_batch+0x13b/0x530
rcu_core+0x159/0x2f0
handle_softirqs+0xd3/0x2b0
? __pfx_smpboot_thread_fn+0x10/0x10
run_ksoftirqd+0x25/0x30
smpboot_thread_fn+0xdd/0x1d0
kthread+0xd3/0x100
? __pfx_kthread+0x10/0x10
ret_from_fork+0x34/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
---[ end trace 0000000000000000 ]---
Its possible that two threads call tcp_v6_do_rcv()/sk_forward_alloc_add()
concurrently when sk->sk_state == TCP_LISTEN with sk->sk_lock unlocked,
which triggers a data-race around sk->sk_forward_alloc:
tcp_v6_rcv
tcp_v6_do_rcv
skb_clone_and_charge_r
sk_rmem_schedule
__sk_mem_schedule
sk_forward_alloc_add()
skb_set_owner_r
sk_mem_charge
sk_forward_alloc_add()
__kfree_skb
skb_release_all
skb_release_head_state
sock_rfree
sk_mem_uncharge
sk_forward_alloc_add()
sk_mem_reclaim
// set local var reclaimable
__sk_mem_reclaim
sk_forward_alloc_add()
In this syzkaller testcase, two threads call
tcp_v6_do_rcv() with skb->truesize=768, the sk_forward_alloc changes like
this:
(cpu 1) | (cpu 2) | sk_forward_alloc
... | ... | 0
__sk_mem_schedule() | | +4096 = 4096
| __sk_mem_schedule() | +4096 = 8192
sk_mem_charge() | | -768 = 7424
| sk_mem_charge() | -768 = 6656
... | ... |
sk_mem_uncharge() | | +768 = 7424
reclaimable=7424 | |
| sk_mem_uncharge() | +768 = 8192
| reclaimable=8192 |
__sk_mem_reclaim() | | -4096 = 4096
| __sk_mem_reclaim() | -8192 = -4096 != 0
The skb_clone_and_charge_r() should not be called in tcp_v6_do_rcv() when
sk->sk_state is TCP_LISTEN, it happens later in tcp_v6_syn_recv_sock().
Fix the same issue in dccp_v6_do_rcv().
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e994b2f0fb9229aeff5eea9541320bd7b2ca8714 Version: e994b2f0fb9229aeff5eea9541320bd7b2ca8714 Version: e994b2f0fb9229aeff5eea9541320bd7b2ca8714 Version: e994b2f0fb9229aeff5eea9541320bd7b2ca8714 Version: e994b2f0fb9229aeff5eea9541320bd7b2ca8714 Version: e994b2f0fb9229aeff5eea9541320bd7b2ca8714 Version: e994b2f0fb9229aeff5eea9541320bd7b2ca8714 |
||
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix data-races around sk-\u003esk_forward_alloc\n\nSyzkaller reported this warning:\n ------------[ cut here ]------------\n WARNING: CPU: 0 PID: 16 at net/ipv4/af_inet.c:156 inet_sock_destruct+0x1c5/0x1e0\n Modules linked in:\n CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.12.0-rc5 #26\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n RIP: 0010:inet_sock_destruct+0x1c5/0x1e0\n Code: 24 12 4c 89 e2 5b 48 c7 c7 98 ec bb 82 41 5c e9 d1 18 17 ff 4c 89 e6 5b 48 c7 c7 d0 ec bb 82 41 5c e9 bf 18 17 ff 0f 0b eb 83 \u003c0f\u003e 0b eb 97 0f 0b eb 87 0f 0b e9 68 ff ff ff 66 66 2e 0f 1f 84 00\n RSP: 0018:ffffc9000008bd90 EFLAGS: 00010206\n RAX: 0000000000000300 RBX: ffff88810b172a90 RCX: 0000000000000007\n RDX: 0000000000000002 RSI: 0000000000000300 RDI: ffff88810b172a00\n RBP: ffff88810b172a00 R08: ffff888104273c00 R09: 0000000000100007\n R10: 0000000000020000 R11: 0000000000000006 R12: ffff88810b172a00\n R13: 0000000000000004 R14: 0000000000000000 R15: ffff888237c31f78\n FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007ffc63fecac8 CR3: 000000000342e000 CR4: 00000000000006f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n \u003cTASK\u003e\n ? __warn+0x88/0x130\n ? inet_sock_destruct+0x1c5/0x1e0\n ? report_bug+0x18e/0x1a0\n ? handle_bug+0x53/0x90\n ? exc_invalid_op+0x18/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? inet_sock_destruct+0x1c5/0x1e0\n __sk_destruct+0x2a/0x200\n rcu_do_batch+0x1aa/0x530\n ? rcu_do_batch+0x13b/0x530\n rcu_core+0x159/0x2f0\n handle_softirqs+0xd3/0x2b0\n ? __pfx_smpboot_thread_fn+0x10/0x10\n run_ksoftirqd+0x25/0x30\n smpboot_thread_fn+0xdd/0x1d0\n kthread+0xd3/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x34/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n ---[ end trace 0000000000000000 ]---\n\nIts possible that two threads call tcp_v6_do_rcv()/sk_forward_alloc_add()\nconcurrently when sk-\u003esk_state == TCP_LISTEN with sk-\u003esk_lock unlocked,\nwhich triggers a data-race around sk-\u003esk_forward_alloc:\ntcp_v6_rcv\n tcp_v6_do_rcv\n skb_clone_and_charge_r\n sk_rmem_schedule\n __sk_mem_schedule\n sk_forward_alloc_add()\n skb_set_owner_r\n sk_mem_charge\n sk_forward_alloc_add()\n __kfree_skb\n skb_release_all\n skb_release_head_state\n sock_rfree\n sk_mem_uncharge\n sk_forward_alloc_add()\n sk_mem_reclaim\n // set local var reclaimable\n __sk_mem_reclaim\n sk_forward_alloc_add()\n\nIn this syzkaller testcase, two threads call\ntcp_v6_do_rcv() with skb-\u003etruesize=768, the sk_forward_alloc changes like\nthis:\n (cpu 1) | (cpu 2) | sk_forward_alloc\n ... | ... | 0\n __sk_mem_schedule() | | +4096 = 4096\n | __sk_mem_schedule() | +4096 = 8192\n sk_mem_charge() | | -768 = 7424\n | sk_mem_charge() | -768 = 6656\n ... | ... |\n sk_mem_uncharge() | | +768 = 7424\n reclaimable=7424 | |\n | sk_mem_uncharge() | +768 = 8192\n | reclaimable=8192 |\n __sk_mem_reclaim() | | -4096 = 4096\n | __sk_mem_reclaim() | -8192 = -4096 != 0\n\nThe skb_clone_and_charge_r() should not be called in tcp_v6_do_rcv() when\nsk-\u003esk_state is TCP_LISTEN, it happens later in tcp_v6_syn_recv_sock().\nFix the same issue in dccp_v6_do_rcv()."
}
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"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"value": "AV:N - The vulnerable code is in the IPv6 TCP receive path (`tcp_v6_rcv()` \u2192 `tcp_v6_do_rcv()`), executed directly on inbound SYN packets from any remote peer; a remote attacker reaches it by sending TCP/IPv6 segments to a listening socket. The same defect exists in the DCCP IPv6 receive path.\nAC:L - The attacker controls both sides of the race by sending a burst of concurrent SYNs from different source ports/addresses, which RSS/RPS distributes across CPUs that all enter `tcp_v6_do_rcv()` on the same listener with no socket lock held. No memory layout, timing window outside attacker influence, or victim state is required, and syzkaller reproduces it routinely.\nPR:N - The racing code runs while processing a SYN on a listening socket, entirely before connection establishment or any authentication, so no credentials of any kind are needed. Setting the `IPV6_RECV*` option that arms the path is done by the victim server (or by an unprivileged local user on their own listener), not by the attacker.\nUI:N - Triggering requires only that packets be sent to an already-listening socket; no action by any local user or administrator is needed.\nS:U - The corrupted state (`sk-\u003esk_forward_alloc`, `tcp_memory_allocated`, memcg skmem counters) and the resulting warning/panic are all within the kernel\u0027s own security authority, with no crossing into a hypervisor, IOMMU, or other separate authority.\nC:N - The defect is a non-atomic read-modify-write on integer accounting counters; it produces no out-of-bounds read, no use-after-free, and no path by which memory contents or kernel pointers are disclosed to the attacker.\nI:N - No attacker-controlled data is written and no memory corruption primitive is created \u2014 only the socket\u0027s own memory-accounting counters become inconsistent, which is not a modification of protected data or control flow.\nA:H - The imbalance trips `WARN_ON_ONCE(sk_forward_alloc_get(sk))` in `inet_sock_destruct()` from softirq context, which is an immediate kernel panic on `panic_on_warn` systems, and the over-reclaim corrupts the global `tcp_memory_allocated` counter and memcg skmem accounting, breaking system-wide TCP memory limits (unbounded growth toward OOM, or permanent memory pressure across all TCP sockets). It is repeatable at will by an unauthenticated remote attacker."
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CVE-2026-43026 (GCVE-0-2026-43026)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-07-14 12:49
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent
ctnetlink_alloc_expect() allocates expectations from a non-zeroing
slab cache via nf_ct_expect_alloc(). When CTA_EXPECT_NAT is not
present in the netlink message, saved_addr and saved_proto are
never initialized. Stale data from a previous slab occupant can
then be dumped to userspace by ctnetlink_exp_dump_expect(), which
checks these fields to decide whether to emit CTA_EXPECT_NAT.
The safe sibling nf_ct_expect_init(), used by the packet path,
explicitly zeroes these fields.
Zero saved_addr, saved_proto and dir in the else branch, guarded
by IS_ENABLED(CONFIG_NF_NAT) since these fields only exist when
NAT is enabled.
Confirmed by priming the expect slab with NAT-bearing expectations,
freeing them, creating a new expectation without CTA_EXPECT_NAT,
and observing that the ctnetlink dump emits a spurious
CTA_EXPECT_NAT containing stale data from the prior allocation.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 076a0ca02644657b13e4af363f487ced2942e9cb Version: 076a0ca02644657b13e4af363f487ced2942e9cb Version: 076a0ca02644657b13e4af363f487ced2942e9cb Version: 076a0ca02644657b13e4af363f487ced2942e9cb Version: 076a0ca02644657b13e4af363f487ced2942e9cb Version: 076a0ca02644657b13e4af363f487ced2942e9cb Version: 076a0ca02644657b13e4af363f487ced2942e9cb Version: 076a0ca02644657b13e4af363f487ced2942e9cb |
||
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CVE-2026-23038 (GCVE-0-2026-23038)
Vulnerability from cvelistv5
Published
2026-01-31 11:42
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node()
In nfs4_ff_alloc_deviceid_node(), if the allocation for ds_versions fails,
the function jumps to the out_scratch label without freeing the already
allocated dsaddrs list, leading to a memory leak.
Fix this by jumping to the out_err_drain_dsaddrs label, which properly
frees the dsaddrs list before cleaning up other resources.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d67ae825a59d639e4d8b82413af84d854617a87e Version: d67ae825a59d639e4d8b82413af84d854617a87e Version: d67ae825a59d639e4d8b82413af84d854617a87e Version: d67ae825a59d639e4d8b82413af84d854617a87e Version: d67ae825a59d639e4d8b82413af84d854617a87e Version: d67ae825a59d639e4d8b82413af84d854617a87e Version: d67ae825a59d639e4d8b82413af84d854617a87e |
||
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CVE-2026-43033 (GCVE-0-2026-43033)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-08-05 12:25
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
When decrypting data that is not in-place (src != dst), there is
no need to save the high-order sequence bits in dst as it could
simply be re-copied from the source.
However, the data to be hashed need to be rearranged accordingly.
Thanks,
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2026-23391 (GCVE-0-2026-23391)
Vulnerability from cvelistv5
Published
2026-03-25 10:33
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: xt_CT: drop pending enqueued packets on template removal
Templates refer to objects that can go away while packets are sitting in
nfqueue refer to:
- helper, this can be an issue on module removal.
- timeout policy, nfnetlink_cttimeout might remove it.
The use of templates with zone and event cache filter are safe, since
this just copies values.
Flush these enqueued packets in case the template rule gets removed.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 24de58f465165298aaa8f286b2592f0163706cfe Version: 24de58f465165298aaa8f286b2592f0163706cfe Version: 24de58f465165298aaa8f286b2592f0163706cfe Version: 24de58f465165298aaa8f286b2592f0163706cfe Version: 24de58f465165298aaa8f286b2592f0163706cfe Version: 24de58f465165298aaa8f286b2592f0163706cfe Version: 24de58f465165298aaa8f286b2592f0163706cfe Version: 24de58f465165298aaa8f286b2592f0163706cfe |
||
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CVE-2025-71112 (GCVE-0-2025-71112)
Vulnerability from cvelistv5
Published
2026-01-14 15:05
Modified
2026-08-05 12:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: add VLAN id validation before using
Currently, the VLAN id may be used without validation when
receive a VLAN configuration mailbox from VF. The length of
vlan_del_fail_bmap is BITS_TO_LONGS(VLAN_N_VID). It may cause
out-of-bounds memory access once the VLAN id is bigger than
or equal to VLAN_N_VID.
Therefore, VLAN id needs to be checked to ensure it is within
the range of VLAN_N_VID.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fe4144d47eef8453459c53a34e9d5940a3e6c219 Version: fe4144d47eef8453459c53a34e9d5940a3e6c219 Version: fe4144d47eef8453459c53a34e9d5940a3e6c219 Version: fe4144d47eef8453459c53a34e9d5940a3e6c219 Version: fe4144d47eef8453459c53a34e9d5940a3e6c219 Version: fe4144d47eef8453459c53a34e9d5940a3e6c219 Version: fe4144d47eef8453459c53a34e9d5940a3e6c219 |
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CVE-2026-23365 (GCVE-0-2026-23365)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: usb: kalmia: validate USB endpoints
The kalmia driver should validate that the device it is probing has the
proper number and types of USB endpoints it is expecting before it binds
to it. If a malicious device were to not have the same urbs the driver
will crash later on when it blindly accesses these endpoints.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d40261236e8e278cb1936cb5e934262971692b10 Version: d40261236e8e278cb1936cb5e934262971692b10 Version: d40261236e8e278cb1936cb5e934262971692b10 Version: d40261236e8e278cb1936cb5e934262971692b10 Version: d40261236e8e278cb1936cb5e934262971692b10 Version: d40261236e8e278cb1936cb5e934262971692b10 Version: d40261236e8e278cb1936cb5e934262971692b10 Version: d40261236e8e278cb1936cb5e934262971692b10 |
||
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CVE-2026-31411 (GCVE-0-2026-31411)
Vulnerability from cvelistv5
Published
2026-04-08 13:06
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: atm: fix crash due to unvalidated vcc pointer in sigd_send()
Reproducer available at [1].
The ATM send path (sendmsg -> vcc_sendmsg -> sigd_send) reads the vcc
pointer from msg->vcc and uses it directly without any validation. This
pointer comes from userspace via sendmsg() and can be arbitrarily forged:
int fd = socket(AF_ATMSVC, SOCK_DGRAM, 0);
ioctl(fd, ATMSIGD_CTRL); // become ATM signaling daemon
struct msghdr msg = { .msg_iov = &iov, ... };
*(unsigned long *)(buf + 4) = 0xdeadbeef; // fake vcc pointer
sendmsg(fd, &msg, 0); // kernel dereferences 0xdeadbeef
In normal operation, the kernel sends the vcc pointer to the signaling
daemon via sigd_enq() when processing operations like connect(), bind(),
or listen(). The daemon is expected to return the same pointer when
responding. However, a malicious daemon can send arbitrary pointer values.
Fix this by introducing find_get_vcc() which validates the pointer by
searching through vcc_hash (similar to how sigd_close() iterates over
all VCCs), and acquires a reference via sock_hold() if found.
Since struct atm_vcc embeds struct sock as its first member, they share
the same lifetime. Therefore using sock_hold/sock_put is sufficient to
keep the vcc alive while it is being used.
Note that there may be a race with sigd_close() which could mark the vcc
with various flags (e.g., ATM_VF_RELEASED) after find_get_vcc() returns.
However, sock_hold() guarantees the memory remains valid, so this race
only affects the logical state, not memory safety.
[1]: https://gist.github.com/mrpre/1ba5949c45529c511152e2f4c755b0f3
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2026-31768 (GCVE-0-2026-31768)
Vulnerability from cvelistv5
Published
2026-05-01 14:14
Modified
2026-08-05 12:25
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()
Add a DMA-safe buffer and use it for spi_read() instead of a stack
memory. All SPI buffers must be DMA-safe.
Since we only need up to 3 bytes, we just use a u8[] instead of __be16
and __be32 and change the conversion functions appropriately.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4d671b71beefbfc145b971a11e0c3cabde94b673 Version: 4d671b71beefbfc145b971a11e0c3cabde94b673 Version: 4d671b71beefbfc145b971a11e0c3cabde94b673 Version: 4d671b71beefbfc145b971a11e0c3cabde94b673 Version: 4d671b71beefbfc145b971a11e0c3cabde94b673 Version: 4d671b71beefbfc145b971a11e0c3cabde94b673 |
||
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CVE-2025-38591 (GCVE-0-2025-38591)
Vulnerability from cvelistv5
Published
2025-08-19 17:03
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Reject narrower access to pointer ctx fields
The following BPF program, simplified from a syzkaller repro, causes a
kernel warning:
r0 = *(u8 *)(r1 + 169);
exit;
With pointer field sk being at offset 168 in __sk_buff. This access is
detected as a narrower read in bpf_skb_is_valid_access because it
doesn't match offsetof(struct __sk_buff, sk). It is therefore allowed
and later proceeds to bpf_convert_ctx_access. Note that for the
"is_narrower_load" case in the convert_ctx_accesses(), the insn->off
is aligned, so the cnt may not be 0 because it matches the
offsetof(struct __sk_buff, sk) in the bpf_convert_ctx_access. However,
the target_size stays 0 and the verifier errors with a kernel warning:
verifier bug: error during ctx access conversion(1)
This patch fixes that to return a proper "invalid bpf_context access
off=X size=Y" error on the load instruction.
The same issue affects multiple other fields in context structures that
allow narrow access. Some other non-affected fields (for sk_msg,
sk_lookup, and sockopt) were also changed to use bpf_ctx_range_ptr for
consistency.
Note this syzkaller crash was reported in the "Closes" link below, which
used to be about a different bug, fixed in
commit fce7bd8e385a ("bpf/verifier: Handle BPF_LOAD_ACQ instructions
in insn_def_regno()"). Because syzbot somehow confused the two bugs,
the new crash and repro didn't get reported to the mailing list.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f96da09473b52c09125cc9bf7d7d4576ae8229e0 Version: f96da09473b52c09125cc9bf7d7d4576ae8229e0 Version: f96da09473b52c09125cc9bf7d7d4576ae8229e0 Version: f96da09473b52c09125cc9bf7d7d4576ae8229e0 Version: f96da09473b52c09125cc9bf7d7d4576ae8229e0 Version: f96da09473b52c09125cc9bf7d7d4576ae8229e0 |
||
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CVE-2026-31495 (GCVE-0-2026-31495)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: use netlink policy range checks
Replace manual range and mask validations with netlink policy
annotations in ctnetlink code paths, so that the netlink core rejects
invalid values early and can generate extack errors.
- CTA_PROTOINFO_TCP_STATE: reject values > TCP_CONNTRACK_SYN_SENT2 at
policy level, removing the manual >= TCP_CONNTRACK_MAX check.
- CTA_PROTOINFO_TCP_WSCALE_ORIGINAL/REPLY: reject values > TCP_MAX_WSCALE
(14). The normal TCP option parsing path already clamps to this value,
but the ctnetlink path accepted 0-255, causing undefined behavior when
used as a u32 shift count.
- CTA_FILTER_ORIG_FLAGS/REPLY_FLAGS: use NLA_POLICY_MASK with
CTA_FILTER_F_ALL, removing the manual mask checks.
- CTA_EXPECT_FLAGS: use NLA_POLICY_MASK with NF_CT_EXPECT_MASK, adding
a new mask define grouping all valid expect flags.
Extracted from a broader nf-next patch by Florian Westphal, scoped to
ctnetlink for the fixes tree.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-21760 (GCVE-0-2025-21760)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ndisc: extend RCU protection in ndisc_send_skb()
ndisc_send_skb() can be called without RTNL or RCU held.
Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu()
and avoid a potential UAF.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1762f7e88eb34f653b4a915be99a102e347dd45e Version: 1762f7e88eb34f653b4a915be99a102e347dd45e Version: 1762f7e88eb34f653b4a915be99a102e347dd45e Version: 1762f7e88eb34f653b4a915be99a102e347dd45e Version: 1762f7e88eb34f653b4a915be99a102e347dd45e Version: 1762f7e88eb34f653b4a915be99a102e347dd45e Version: 1762f7e88eb34f653b4a915be99a102e347dd45e Version: 1762f7e88eb34f653b4a915be99a102e347dd45e |
||
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CVE-2026-23474 (GCVE-0-2026-23474)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mtd: Avoid boot crash in RedBoot partition table parser
Given CONFIG_FORTIFY_SOURCE=y and a recent compiler,
commit 439a1bcac648 ("fortify: Use __builtin_dynamic_object_size() when
available") produces the warning below and an oops.
Searching for RedBoot partition table in 50000000.flash at offset 0x7e0000
------------[ cut here ]------------
WARNING: lib/string_helpers.c:1035 at 0xc029e04c, CPU#0: swapper/0/1
memcmp: detected buffer overflow: 15 byte read of buffer size 14
Modules linked in:
CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.19.0 #1 NONE
As Kees said, "'names' is pointing to the final 'namelen' many bytes
of the allocation ... 'namelen' could be basically any length at all.
This fortify warning looks legit to me -- this code used to be reading
beyond the end of the allocation."
Since the size of the dynamic allocation is calculated with strlen()
we can use strcmp() instead of memcmp() and remain within bounds.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2025-21745 (GCVE-0-2025-21745)
Vulnerability from cvelistv5
Published
2025-02-27 02:12
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
blk-cgroup: Fix class @block_class's subsystem refcount leakage
blkcg_fill_root_iostats() iterates over @block_class's devices by
class_dev_iter_(init|next)(), but does not end iterating with
class_dev_iter_exit(), so causes the class's subsystem refcount leakage.
Fix by ending the iterating with class_dev_iter_exit().
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ef45fe470e1e5410db4af87abc5d5055427945ac Version: ef45fe470e1e5410db4af87abc5d5055427945ac Version: ef45fe470e1e5410db4af87abc5d5055427945ac Version: ef45fe470e1e5410db4af87abc5d5055427945ac Version: ef45fe470e1e5410db4af87abc5d5055427945ac Version: ef45fe470e1e5410db4af87abc5d5055427945ac Version: ef45fe470e1e5410db4af87abc5d5055427945ac |
||
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}
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CVE-2026-23010 (GCVE-0-2026-23010)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix use-after-free in inet6_addr_del().
syzbot reported use-after-free of inet6_ifaddr in
inet6_addr_del(). [0]
The cited commit accidentally moved ipv6_del_addr() for
mngtmpaddr before reading its ifp->flags for temporary
addresses in inet6_addr_del().
Let's move ipv6_del_addr() down to fix the UAF.
[0]:
BUG: KASAN: slab-use-after-free in inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117
Read of size 4 at addr ffff88807b89c86c by task syz.3.1618/9593
CPU: 0 UID: 0 PID: 9593 Comm: syz.3.1618 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xcd/0x630 mm/kasan/report.c:482
kasan_report+0xe0/0x110 mm/kasan/report.c:595
inet6_addr_del.constprop.0+0x67a/0x6b0 net/ipv6/addrconf.c:3117
addrconf_del_ifaddr+0x11e/0x190 net/ipv6/addrconf.c:3181
inet6_ioctl+0x1e5/0x2b0 net/ipv6/af_inet6.c:582
sock_do_ioctl+0x118/0x280 net/socket.c:1254
sock_ioctl+0x227/0x6b0 net/socket.c:1375
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f164cf8f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f164de64038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f164d1e5fa0 RCX: 00007f164cf8f749
RDX: 0000200000000000 RSI: 0000000000008936 RDI: 0000000000000003
RBP: 00007f164d013f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f164d1e6038 R14: 00007f164d1e5fa0 R15: 00007ffde15c8288
</TASK>
Allocated by task 9593:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
poison_kmalloc_redzone mm/kasan/common.c:397 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:414
kmalloc_noprof include/linux/slab.h:957 [inline]
kzalloc_noprof include/linux/slab.h:1094 [inline]
ipv6_add_addr+0x4e3/0x2010 net/ipv6/addrconf.c:1120
inet6_addr_add+0x256/0x9b0 net/ipv6/addrconf.c:3050
addrconf_add_ifaddr+0x1fc/0x450 net/ipv6/addrconf.c:3160
inet6_ioctl+0x103/0x2b0 net/ipv6/af_inet6.c:580
sock_do_ioctl+0x118/0x280 net/socket.c:1254
sock_ioctl+0x227/0x6b0 net/socket.c:1375
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6099:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:252 [inline]
__kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
kasan_slab_free include/linux/kasan.h:234 [inline]
slab_free_hook mm/slub.c:2540 [inline]
slab_free_freelist_hook mm/slub.c:2569 [inline]
slab_free_bulk mm/slub.c:6696 [inline]
kmem_cache_free_bulk mm/slub.c:7383 [inline]
kmem_cache_free_bulk+0x2bf/0x680 mm/slub.c:7362
kfree_bulk include/linux/slab.h:830 [inline]
kvfree_rcu_bulk+0x1b7/0x1e0 mm/slab_common.c:1523
kvfree_rcu_drain_ready mm/slab_common.c:1728 [inline]
kfree_rcu_monitor+0x1d0/0x2f0 mm/slab_common.c:1801
process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257
process_scheduled_works kernel/workqu
---truncated---
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ca97dd10424860a3806ad3a9e26b9dce2901ee0c Version: 836deb96383ed9c1a411f172954d74b3f74ec6ac Version: cb74207ef98317f8874a0b9780bb339c2eb700b0 Version: 00b5b7aab9e422d00d5a9d03d7e0760a76b5d57f Version: 00b5b7aab9e422d00d5a9d03d7e0760a76b5d57f Version: 851b3bb105c595cc20b8dcc1b4de029061ce2b76 Version: 6.1.120 ≤ Version: 6.6.64 ≤ Version: 6.12.2 ≤ Version: 6.11.11 ≤ |
||
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}
],
"metrics": [
{
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CVE-2025-21676 (GCVE-0-2025-21676)
Vulnerability from cvelistv5
Published
2025-01-31 11:25
Modified
2026-08-05 11:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fec: handle page_pool_dev_alloc_pages error
The fec_enet_update_cbd function calls page_pool_dev_alloc_pages but did
not handle the case when it returned NULL. There was a WARN_ON(!new_page)
but it would still proceed to use the NULL pointer and then crash.
This case does seem somewhat rare but when the system is under memory
pressure it can happen. One case where I can duplicate this with some
frequency is when writing over a smbd share to a SATA HDD attached to an
imx6q.
Setting /proc/sys/vm/min_free_kbytes to higher values also seems to solve
the problem for my test case. But it still seems wrong that the fec driver
ignores the memory allocation error and can crash.
This commit handles the allocation error by dropping the current packet.
References
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Impacted products
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CVE-2026-23095 (GCVE-0-2026-23095)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
gue: Fix skb memleak with inner IP protocol 0.
syzbot reported skb memleak below. [0]
The repro generated a GUE packet with its inner protocol 0.
gue_udp_recv() returns -guehdr->proto_ctype for "resubmit"
in ip_protocol_deliver_rcu(), but this only works with
non-zero protocol number.
Let's drop such packets.
Note that 0 is a valid number (IPv6 Hop-by-Hop Option).
I think it is not practical to encap HOPOPT in GUE, so once
someone starts to complain, we could pass down a resubmit
flag pointer to distinguish two zeros from the upper layer:
* no error
* resubmit HOPOPT
[0]
BUG: memory leak
unreferenced object 0xffff888109695a00 (size 240):
comm "syz.0.17", pid 6088, jiffies 4294943096
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 40 c2 10 81 88 ff ff 00 00 00 00 00 00 00 00 .@..............
backtrace (crc a84b336f):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4958 [inline]
slab_alloc_node mm/slub.c:5263 [inline]
kmem_cache_alloc_noprof+0x3b4/0x590 mm/slub.c:5270
__build_skb+0x23/0x60 net/core/skbuff.c:474
build_skb+0x20/0x190 net/core/skbuff.c:490
__tun_build_skb drivers/net/tun.c:1541 [inline]
tun_build_skb+0x4a1/0xa40 drivers/net/tun.c:1636
tun_get_user+0xc12/0x2030 drivers/net/tun.c:1770
tun_chr_write_iter+0x71/0x120 drivers/net/tun.c:1999
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0x45d/0x710 fs/read_write.c:686
ksys_write+0xa7/0x170 fs/read_write.c:738
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 37dd0247797b168ad1cc7f5dbec825a1ee66535b Version: 37dd0247797b168ad1cc7f5dbec825a1ee66535b Version: 37dd0247797b168ad1cc7f5dbec825a1ee66535b Version: 37dd0247797b168ad1cc7f5dbec825a1ee66535b Version: 37dd0247797b168ad1cc7f5dbec825a1ee66535b Version: 37dd0247797b168ad1cc7f5dbec825a1ee66535b Version: 37dd0247797b168ad1cc7f5dbec825a1ee66535b |
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CVE-2026-22980 (GCVE-0-2026-22980)
Vulnerability from cvelistv5
Published
2026-01-23 15:24
Modified
2026-08-05 12:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfsd: provide locking for v4_end_grace
Writing to v4_end_grace can race with server shutdown and result in
memory being accessed after it was freed - reclaim_str_hashtbl in
particularly.
We cannot hold nfsd_mutex across the nfsd4_end_grace() call as that is
held while client_tracking_op->init() is called and that can wait for
an upcall to nfsdcltrack which can write to v4_end_grace, resulting in a
deadlock.
nfsd4_end_grace() is also called by the landromat work queue and this
doesn't require locking as server shutdown will stop the work and wait
for it before freeing anything that nfsd4_end_grace() might access.
However, we must be sure that writing to v4_end_grace doesn't restart
the work item after shutdown has already waited for it. For this we
add a new flag protected with nn->client_lock. It is set only while it
is safe to make client tracking calls, and v4_end_grace only schedules
work while the flag is set with the spinlock held.
So this patch adds a nfsd_net field "client_tracking_active" which is
set as described. Another field "grace_end_forced", is set when
v4_end_grace is written. After this is set, and providing
client_tracking_active is set, the laundromat is scheduled.
This "grace_end_forced" field bypasses other checks for whether the
grace period has finished.
This resolves a race which can result in use-after-free.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 Version: 7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 Version: 7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 Version: 7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 Version: 7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 Version: 7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 Version: 7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 |
||
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"datePublished": "2026-01-23T15:24:02.924Z",
"dateReserved": "2026-01-13T15:37:45.936Z",
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CVE-2026-23113 (GCVE-0-2026-23113)
Vulnerability from cvelistv5
Published
2026-02-14 15:09
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop
Currently this is checked before running the pending work. Normally this
is quite fine, as work items either end up blocking (which will create a
new worker for other items), or they complete fairly quickly. But syzbot
reports an issue where io-wq takes seemingly forever to exit, and with a
bit of debugging, this turns out to be because it queues a bunch of big
(2GB - 4096b) reads with a /dev/msr* file. Since this file type doesn't
support ->read_iter(), loop_rw_iter() ends up handling them. Each read
returns 16MB of data read, which takes 20 (!!) seconds. With a bunch of
these pending, processing the whole chain can take a long time. Easily
longer than the syzbot uninterruptible sleep timeout of 140 seconds.
This then triggers a complaint off the io-wq exit path:
INFO: task syz.4.135:6326 blocked for more than 143 seconds.
Not tainted syzkaller #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.135 state:D stack:26824 pid:6326 tgid:6324 ppid:5957 task_flags:0x400548 flags:0x00080000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x1139/0x6150 kernel/sched/core.c:6863
__schedule_loop kernel/sched/core.c:6945 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6960
schedule_timeout+0x257/0x290 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:100 [inline]
__wait_for_common+0x2fc/0x4e0 kernel/sched/completion.c:121
io_wq_exit_workers io_uring/io-wq.c:1328 [inline]
io_wq_put_and_exit+0x271/0x8a0 io_uring/io-wq.c:1356
io_uring_clean_tctx+0x10d/0x190 io_uring/tctx.c:203
io_uring_cancel_generic+0x69c/0x9a0 io_uring/cancel.c:651
io_uring_files_cancel include/linux/io_uring.h:19 [inline]
do_exit+0x2ce/0x2bd0 kernel/exit.c:911
do_group_exit+0xd3/0x2a0 kernel/exit.c:1112
get_signal+0x2671/0x26d0 kernel/signal.c:3034
arch_do_signal_or_restart+0x8f/0x7e0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x8c/0x540 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x4ee/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa02738f749
RSP: 002b:00007fa0281ae0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fa0275e6098 RCX: 00007fa02738f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa0275e6098
RBP: 00007fa0275e6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa0275e6128 R14: 00007fff14e4fcb0 R15: 00007fff14e4fd98
There's really nothing wrong here, outside of processing these reads
will take a LONG time. However, we can speed up the exit by checking the
IO_WQ_BIT_EXIT inside the io_worker_handle_work() loop, as syzbot will
exit the ring after queueing up all of these reads. Then once the first
item is processed, io-wq will simply cancel the rest. That should avoid
syzbot running into this complaint again.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c60eb049f4a19ddddcd3ee97a9c79ab8066a6a03 Version: c60eb049f4a19ddddcd3ee97a9c79ab8066a6a03 Version: c60eb049f4a19ddddcd3ee97a9c79ab8066a6a03 Version: c60eb049f4a19ddddcd3ee97a9c79ab8066a6a03 Version: c60eb049f4a19ddddcd3ee97a9c79ab8066a6a03 Version: c60eb049f4a19ddddcd3ee97a9c79ab8066a6a03 |
||
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CVE-2026-31670 (GCVE-0-2026-31670)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: rfkill: prevent unlimited numbers of rfkill events from being created
Userspace can create an unlimited number of rfkill events if the system
is so configured, while not consuming them from the rfkill file
descriptor, causing a potential out of memory situation. Prevent this
from bounding the number of pending rfkill events at a "large" number
(i.e. 1000) to prevent abuses like this.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c64fb01627e24725d1f9d535e4426475a4415753 Version: c64fb01627e24725d1f9d535e4426475a4415753 Version: c64fb01627e24725d1f9d535e4426475a4415753 Version: c64fb01627e24725d1f9d535e4426475a4415753 Version: c64fb01627e24725d1f9d535e4426475a4415753 Version: c64fb01627e24725d1f9d535e4426475a4415753 Version: c64fb01627e24725d1f9d535e4426475a4415753 Version: c64fb01627e24725d1f9d535e4426475a4415753 |
||
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CVE-2026-23454 (GCVE-0-2026-23454)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: mana: fix use-after-free in mana_hwc_destroy_channel() by reordering teardown
A potential race condition exists in mana_hwc_destroy_channel() where
hwc->caller_ctx is freed before the HWC's Completion Queue (CQ) and
Event Queue (EQ) are destroyed. This allows an in-flight CQ interrupt
handler to dereference freed memory, leading to a use-after-free or
NULL pointer dereference in mana_hwc_handle_resp().
mana_smc_teardown_hwc() signals the hardware to stop but does not
synchronize against IRQ handlers already executing on other CPUs. The
IRQ synchronization only happens in mana_hwc_destroy_cq() via
mana_gd_destroy_eq() -> mana_gd_deregister_irq(). Since this runs
after kfree(hwc->caller_ctx), a concurrent mana_hwc_rx_event_handler()
can dereference freed caller_ctx (and rxq->msg_buf) in
mana_hwc_handle_resp().
Fix this by reordering teardown to reverse-of-creation order: destroy
the TX/RX work queues and CQ/EQ before freeing hwc->caller_ctx. This
ensures all in-flight interrupt handlers complete before the memory they
access is freed.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f Version: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f Version: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f Version: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f Version: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f Version: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f Version: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f |
||
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CVE-2026-31563 (GCVE-0-2026-31563)
Vulnerability from cvelistv5
Published
2026-04-24 14:35
Modified
2026-08-05 12:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: macb: Use dev_consume_skb_any() to free TX SKBs
The napi_consume_skb() function is not intended to be called in an IRQ
disabled context. However, after commit 6bc8a5098bf4 ("net: macb: Fix
tx_ptr_lock locking"), the freeing of TX SKBs is performed with IRQs
disabled. To resolve the following call trace, use dev_consume_skb_any()
for freeing TX SKBs:
WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0x174/0x188, CPU#0: ksoftirqd/0/15
Modules linked in:
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 7.0.0-rc4-next-20260319-yocto-standard-dirty #37 PREEMPT
Hardware name: ZynqMP ZCU102 Rev1.1 (DT)
pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __local_bh_enable_ip+0x174/0x188
lr : local_bh_enable+0x24/0x38
sp : ffff800082b3bb10
x29: ffff800082b3bb10 x28: ffff0008031f3c00 x27: 000000000011ede0
x26: ffff000800a7ff00 x25: ffff800083937ce8 x24: 0000000000017a80
x23: ffff000803243a78 x22: 0000000000000040 x21: 0000000000000000
x20: ffff000800394c80 x19: 0000000000000200 x18: 0000000000000001
x17: 0000000000000001 x16: ffff000803240000 x15: 0000000000000000
x14: ffffffffffffffff x13: 0000000000000028 x12: ffff000800395650
x11: ffff8000821d1528 x10: ffff800081c2bc08 x9 : ffff800081c1e258
x8 : 0000000100000301 x7 : ffff8000810426ec x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000008 x1 : 0000000000000200 x0 : ffff8000810428dc
Call trace:
__local_bh_enable_ip+0x174/0x188 (P)
local_bh_enable+0x24/0x38
skb_attempt_defer_free+0x190/0x1d8
napi_consume_skb+0x58/0x108
macb_tx_poll+0x1a4/0x558
__napi_poll+0x50/0x198
net_rx_action+0x1f4/0x3d8
handle_softirqs+0x16c/0x560
run_ksoftirqd+0x44/0x80
smpboot_thread_fn+0x1d8/0x338
kthread+0x120/0x150
ret_from_fork+0x10/0x20
irq event stamp: 29751
hardirqs last enabled at (29750): [<ffff8000813be184>] _raw_spin_unlock_irqrestore+0x44/0x88
hardirqs last disabled at (29751): [<ffff8000813bdf60>] _raw_spin_lock_irqsave+0x38/0x98
softirqs last enabled at (29150): [<ffff8000800f1aec>] handle_softirqs+0x504/0x560
softirqs last disabled at (29153): [<ffff8000800f2fec>] run_ksoftirqd+0x44/0x80
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: aeeafeb29b1b270302a9a85a13f7d70a68a3b9e6 Version: 5430388a81113e62a2d48b5d7dc1e76231908ebf Version: 7db8aa3fc4ed0a2928246747b2514b0741a8187e Version: 6bc8a5098bf4a365c4086a4a4130bfab10a58260 Version: 6bc8a5098bf4a365c4086a4a4130bfab10a58260 Version: 6bc8a5098bf4a365c4086a4a4130bfab10a58260 Version: a4cb0a15ab8e6d06c08229a2c7bdbe1f2454473f Version: 6.1.151 ≤ Version: 6.6.105 ≤ Version: 6.12.46 ≤ Version: 6.16.6 ≤ |
||
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"value": "AV:N - An unauthenticated remote peer can cause an affected MACB/GEM Ethernet interface to transmit packets, such as TCP resets, ICMP replies, or service responses, which drives TX completion and reaches the vulnerable SKB-freeing path. This is reachable over the network in a reasonable internet-facing or routed embedded deployment.\nAC:L - Once the affected driver is active and the interface transmits traffic, the path is deterministic: TX completion schedules NAPI and calls the invalid `napi_consume_skb()` path with IRQs disabled. The attacker does not need to win a race or shape kernel memory.\nPR:N - No local account, capability, device node access, or authentication is needed when remote packets induce kernel-generated replies or service traffic through the affected NIC. The vulnerable code is in normal packet transmit completion, not a privileged control path.\nUI:N - No victim user action is required beyond the system having the affected network interface up. Remote traffic can trigger the transmit and completion path automatically.\nS:U - The impact is within the same kernel and host security authority. There is no VM escape, IOMMU boundary crossing, or separate security scope involved.\nC:N - The bug is an invalid SKB consume helper used in IRQ-disabled context and the fix only changes the freeing API. I found no evidence of out-of-bounds access, use-after-free, arbitrary read, or information disclosure.\nI:N - The vulnerable path does not corrupt attacker-controlled kernel memory or provide a write primitive; it frees the TX SKB through an unsafe-context helper. There is no supported basis for integrity impact beyond availability.\nA:H - The reachable failure is a kernel WARNING in softirq/BH handling, and on systems using `panic_on_warn` this becomes a kernel panic from unauthenticated network-triggered traffic. Under the required higher-severity rule, the availability impact is scored high for that reasonable deployment."
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CVE-2026-40355 (GCVE-0-2026-40355)
Vulnerability from cvelistv5
Published
2026-04-28 00:00
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, causing the process to terminate in parse_nego_message.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MIT | Kerberos 5 |
Version: 1.18 < 1.22.3 |
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CVE-2023-28531 (GCVE-0-2023-28531)
Vulnerability from cvelistv5
Published
2023-03-17 00:00
Modified
2026-07-14 12:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.
References
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CVE-2025-68782 (GCVE-0-2025-68782)
Vulnerability from cvelistv5
Published
2026-01-13 15:28
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: Reset t_task_cdb pointer in error case
If allocation of cmd->t_task_cdb fails, it remains NULL but is later
dereferenced in the 'err' path.
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fixed-size buffer.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2025-22095 (GCVE-0-2025-22095)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
PCI: brcmstb: Fix error path after a call to regulator_bulk_get()
If the regulator_bulk_get() returns an error and no regulators
are created, we need to set their number to zero.
If we don't do this and the PCIe link up fails, a call to the
regulator_bulk_free() will result in a kernel panic.
While at it, print the error value, as we cannot return an error
upwards as the kernel will WARN() on an error from add_bus().
[kwilczynski: commit log, use comma in the message to match style with
other similar messages]
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9e6be018b26347c26a93e63fb50a37ee2c9311de Version: 9e6be018b26347c26a93e63fb50a37ee2c9311de Version: 9e6be018b26347c26a93e63fb50a37ee2c9311de Version: 9e6be018b26347c26a93e63fb50a37ee2c9311de Version: 9e6be018b26347c26a93e63fb50a37ee2c9311de Version: 9e6be018b26347c26a93e63fb50a37ee2c9311de |
||
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CVE-2025-21887 (GCVE-0-2025-21887)
Vulnerability from cvelistv5
Published
2025-03-27 14:57
Modified
2026-08-05 11:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up
The issue was caused by dput(upper) being called before
ovl_dentry_update_reval(), while upper->d_flags was still
accessed in ovl_dentry_remote().
Move dput(upper) after its last use to prevent use-after-free.
BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
ovl_link_up fs/overlayfs/copy_up.c:610 [inline]
ovl_copy_up_one+0x2105/0x3490 fs/overlayfs/copy_up.c:1170
ovl_copy_up_flags+0x18d/0x200 fs/overlayfs/copy_up.c:1223
ovl_rename+0x39e/0x18c0 fs/overlayfs/dir.c:1136
vfs_rename+0xf84/0x20a0 fs/namei.c:4893
...
</TASK>
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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Version: 714ba10a6dd19752a349e59aa875f3288ccb59b9 Version: 62f29ca45f832e281fc14966ac25f6ff3bd121ca Version: e4f2a1feebb3f209a0fca82aa53507a5b8be4d53 Version: b07d5cc93e1b28df47a72c519d09d0a836043613 Version: b07d5cc93e1b28df47a72c519d09d0a836043613 Version: b07d5cc93e1b28df47a72c519d09d0a836043613 Version: b07d5cc93e1b28df47a72c519d09d0a836043613 Version: 33ab4dd6202f359558a0a2678b94d1b9994c17e5 Version: 1ecdc55e5cd9f70f8d7513802971d4cffb9f77af Version: 5.10.188 ≤ Version: 5.15.121 ≤ Version: 6.1.39 ≤ Version: 6.3.13 ≤ Version: 6.4.4 ≤ |
||
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CVE-2025-21707 (GCVE-0-2025-21707)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-08-05 11:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: consolidate suboption status
MPTCP maintains the received sub-options status is the bitmask carrying
the received suboptions and in several bitfields carrying per suboption
additional info.
Zeroing the bitmask before parsing is not enough to ensure a consistent
status, and the MPTCP code has to additionally clear some bitfiled
depending on the actually parsed suboption.
The above schema is fragile, and syzbot managed to trigger a path where
a relevant bitfield is not cleared/initialized:
BUG: KMSAN: uninit-value in __mptcp_expand_seq net/mptcp/options.c:1030 [inline]
BUG: KMSAN: uninit-value in mptcp_expand_seq net/mptcp/protocol.h:864 [inline]
BUG: KMSAN: uninit-value in ack_update_msk net/mptcp/options.c:1060 [inline]
BUG: KMSAN: uninit-value in mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209
__mptcp_expand_seq net/mptcp/options.c:1030 [inline]
mptcp_expand_seq net/mptcp/protocol.h:864 [inline]
ack_update_msk net/mptcp/options.c:1060 [inline]
mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209
tcp_data_queue+0xb4/0x7be0 net/ipv4/tcp_input.c:5233
tcp_rcv_established+0x1061/0x2510 net/ipv4/tcp_input.c:6264
tcp_v4_do_rcv+0x7f3/0x11a0 net/ipv4/tcp_ipv4.c:1916
tcp_v4_rcv+0x51df/0x5750 net/ipv4/tcp_ipv4.c:2351
ip_protocol_deliver_rcu+0x2a3/0x13d0 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:314 [inline]
ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:460 [inline]
ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:447
NF_HOOK include/linux/netfilter.h:314 [inline]
ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:567
__netif_receive_skb_one_core net/core/dev.c:5704 [inline]
__netif_receive_skb+0x319/0xa00 net/core/dev.c:5817
process_backlog+0x4ad/0xa50 net/core/dev.c:6149
__napi_poll+0xe7/0x980 net/core/dev.c:6902
napi_poll net/core/dev.c:6971 [inline]
net_rx_action+0xa5a/0x19b0 net/core/dev.c:7093
handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561
__do_softirq+0x14/0x1a kernel/softirq.c:595
do_softirq+0x9a/0x100 kernel/softirq.c:462
__local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:389
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
__dev_queue_xmit+0x2758/0x57d0 net/core/dev.c:4493
dev_queue_xmit include/linux/netdevice.h:3168 [inline]
neigh_hh_output include/net/neighbour.h:523 [inline]
neigh_output include/net/neighbour.h:537 [inline]
ip_finish_output2+0x187c/0x1b70 net/ipv4/ip_output.c:236
__ip_finish_output+0x287/0x810
ip_finish_output+0x4b/0x600 net/ipv4/ip_output.c:324
NF_HOOK_COND include/linux/netfilter.h:303 [inline]
ip_output+0x15f/0x3f0 net/ipv4/ip_output.c:434
dst_output include/net/dst.h:450 [inline]
ip_local_out net/ipv4/ip_output.c:130 [inline]
__ip_queue_xmit+0x1f2a/0x20d0 net/ipv4/ip_output.c:536
ip_queue_xmit+0x60/0x80 net/ipv4/ip_output.c:550
__tcp_transmit_skb+0x3cea/0x4900 net/ipv4/tcp_output.c:1468
tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline]
tcp_write_xmit+0x3b90/0x9070 net/ipv4/tcp_output.c:2829
__tcp_push_pending_frames+0xc4/0x380 net/ipv4/tcp_output.c:3012
tcp_send_fin+0x9f6/0xf50 net/ipv4/tcp_output.c:3618
__tcp_close+0x140c/0x1550 net/ipv4/tcp.c:3130
__mptcp_close_ssk+0x74e/0x16f0 net/mptcp/protocol.c:2496
mptcp_close_ssk+0x26b/0x2c0 net/mptcp/protocol.c:2550
mptcp_pm_nl_rm_addr_or_subflow+0x635/0xd10 net/mptcp/pm_netlink.c:889
mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:924 [inline]
mptcp_pm_flush_addrs_and_subflows net/mptcp/pm_netlink.c:1688 [inline]
mptcp_nl_flush_addrs_list net/mptcp/pm_netlink.c:1709 [inline]
mptcp_pm_nl_flush_addrs_doit+0xe10/0x1630 net/mptcp/pm_netlink.c:1750
genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
---truncated---
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc Version: 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc Version: 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc Version: 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc Version: 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc Version: 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc |
||
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CVE-2026-23111 (GCVE-0-2026-23111)
Vulnerability from cvelistv5
Published
2026-02-13 13:29
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()
nft_map_catchall_activate() has an inverted element activity check
compared to its non-catchall counterpart nft_mapelem_activate() and
compared to what is logically required.
nft_map_catchall_activate() is called from the abort path to re-activate
catchall map elements that were deactivated during a failed transaction.
It should skip elements that are already active (they don't need
re-activation) and process elements that are inactive (they need to be
restored). Instead, the current code does the opposite: it skips inactive
elements and processes active ones.
Compare the non-catchall activate callback, which is correct:
nft_mapelem_activate():
if (nft_set_elem_active(ext, iter->genmask))
return 0; /* skip active, process inactive */
With the buggy catchall version:
nft_map_catchall_activate():
if (!nft_set_elem_active(ext, genmask))
continue; /* skip inactive, process active */
The consequence is that when a DELSET operation is aborted,
nft_setelem_data_activate() is never called for the catchall element.
For NFT_GOTO verdict elements, this means nft_data_hold() is never
called to restore the chain->use reference count. Each abort cycle
permanently decrements chain->use. Once chain->use reaches zero,
DELCHAIN succeeds and frees the chain while catchall verdict elements
still reference it, resulting in a use-after-free.
This is exploitable for local privilege escalation from an unprivileged
user via user namespaces + nftables on distributions that enable
CONFIG_USER_NS and CONFIG_NF_TABLES.
Fix by removing the negation so the check matches nft_mapelem_activate():
skip active elements, process inactive ones.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8 Version: d60be2da67d172aecf866302c91ea11533eca4d9 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: bc9f791d2593f17e39f87c6e2b3a36549a3705b1 Version: 3c7ec098e3b588434a8b07ea9b5b36f04cef1f50 Version: a136b7942ad2a50de708f76ea299ccb45ac7a7f9 Version: dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41 Version: 5.15.121 ≤ Version: 6.1.36 ≤ Version: 4.19.316 ≤ Version: 5.4.262 ≤ Version: 5.10.188 ≤ Version: 6.3.10 ≤ |
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CVE-2025-21814 (GCVE-0-2025-21814)
Vulnerability from cvelistv5
Published
2025-02-27 20:04
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ptp: Ensure info->enable callback is always set
The ioctl and sysfs handlers unconditionally call the ->enable callback.
Not all drivers implement that callback, leading to NULL dereferences.
Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c.
Instead use a dummy callback if no better was specified by the driver.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d94ba80ebbea17f036cecb104398fbcd788aa742 Version: d94ba80ebbea17f036cecb104398fbcd788aa742 Version: d94ba80ebbea17f036cecb104398fbcd788aa742 Version: d94ba80ebbea17f036cecb104398fbcd788aa742 Version: d94ba80ebbea17f036cecb104398fbcd788aa742 Version: d94ba80ebbea17f036cecb104398fbcd788aa742 Version: d94ba80ebbea17f036cecb104398fbcd788aa742 Version: d94ba80ebbea17f036cecb104398fbcd788aa742 |
||
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CVE-2025-68764 (GCVE-0-2025-68764)
Vulnerability from cvelistv5
Published
2026-01-05 09:44
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
When a filesystem is being automounted, it needs to preserve the
user-set superblock mount options, such as the "ro" flag.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
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CVE-2026-31651 (GCVE-0-2026-31651)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mmc: vub300: fix NULL-deref on disconnect
Make sure to deregister the controller before dropping the reference to
the driver data on disconnect to avoid NULL-pointer dereferences or
use-after-free.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
| Linux | Linux |
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CVE-2026-31737 (GCVE-0-2026-31737)
Vulnerability from cvelistv5
Published
2026-05-01 14:14
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ftgmac100: fix ring allocation unwind on open failure
ftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and
rx_scratch in stages. On intermediate failures it returned -ENOMEM
directly, leaking resources allocated earlier in the function.
Rework the failure path to use staged local unwind labels and free
allocated resources in reverse order before returning -ENOMEM. This
matches common netdev allocation cleanup style.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e Version: d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e |
||
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CVE-2025-22055 (GCVE-0-2025-22055)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-08-05 11:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix geneve_opt length integer overflow
struct geneve_opt uses 5 bit length for each single option, which
means every vary size option should be smaller than 128 bytes.
However, all current related Netlink policies cannot promise this
length condition and the attacker can exploit a exact 128-byte size
option to *fake* a zero length option and confuse the parsing logic,
further achieve heap out-of-bounds read.
One example crash log is like below:
[ 3.905425] ==================================================================
[ 3.905925] BUG: KASAN: slab-out-of-bounds in nla_put+0xa9/0xe0
[ 3.906255] Read of size 124 at addr ffff888005f291cc by task poc/177
[ 3.906646]
[ 3.906775] CPU: 0 PID: 177 Comm: poc-oob-read Not tainted 6.1.132 #1
[ 3.907131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[ 3.907784] Call Trace:
[ 3.907925] <TASK>
[ 3.908048] dump_stack_lvl+0x44/0x5c
[ 3.908258] print_report+0x184/0x4be
[ 3.909151] kasan_report+0xc5/0x100
[ 3.909539] kasan_check_range+0xf3/0x1a0
[ 3.909794] memcpy+0x1f/0x60
[ 3.909968] nla_put+0xa9/0xe0
[ 3.910147] tunnel_key_dump+0x945/0xba0
[ 3.911536] tcf_action_dump_1+0x1c1/0x340
[ 3.912436] tcf_action_dump+0x101/0x180
[ 3.912689] tcf_exts_dump+0x164/0x1e0
[ 3.912905] fw_dump+0x18b/0x2d0
[ 3.913483] tcf_fill_node+0x2ee/0x460
[ 3.914778] tfilter_notify+0xf4/0x180
[ 3.915208] tc_new_tfilter+0xd51/0x10d0
[ 3.918615] rtnetlink_rcv_msg+0x4a2/0x560
[ 3.919118] netlink_rcv_skb+0xcd/0x200
[ 3.919787] netlink_unicast+0x395/0x530
[ 3.921032] netlink_sendmsg+0x3d0/0x6d0
[ 3.921987] __sock_sendmsg+0x99/0xa0
[ 3.922220] __sys_sendto+0x1b7/0x240
[ 3.922682] __x64_sys_sendto+0x72/0x90
[ 3.922906] do_syscall_64+0x5e/0x90
[ 3.923814] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 3.924122] RIP: 0033:0x7e83eab84407
[ 3.924331] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf
[ 3.925330] RSP: 002b:00007ffff505e370 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 3.925752] RAX: ffffffffffffffda RBX: 00007e83eaafa740 RCX: 00007e83eab84407
[ 3.926173] RDX: 00000000000001a8 RSI: 00007ffff505e3c0 RDI: 0000000000000003
[ 3.926587] RBP: 00007ffff505f460 R08: 00007e83eace1000 R09: 000000000000000c
[ 3.926977] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffff505f3c0
[ 3.927367] R13: 00007ffff505f5c8 R14: 00007e83ead1b000 R15: 00005d4fbbe6dcb8
Fix these issues by enforing correct length condition in related
policies.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix geneve_opt length integer overflow\n\nstruct geneve_opt uses 5 bit length for each single option, which\nmeans every vary size option should be smaller than 128 bytes.\n\nHowever, all current related Netlink policies cannot promise this\nlength condition and the attacker can exploit a exact 128-byte size\noption to *fake* a zero length option and confuse the parsing logic,\nfurther achieve heap out-of-bounds read.\n\nOne example crash log is like below:\n\n[ 3.905425] ==================================================================\n[ 3.905925] BUG: KASAN: slab-out-of-bounds in nla_put+0xa9/0xe0\n[ 3.906255] Read of size 124 at addr ffff888005f291cc by task poc/177\n[ 3.906646]\n[ 3.906775] CPU: 0 PID: 177 Comm: poc-oob-read Not tainted 6.1.132 #1\n[ 3.907131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n[ 3.907784] Call Trace:\n[ 3.907925] \u003cTASK\u003e\n[ 3.908048] dump_stack_lvl+0x44/0x5c\n[ 3.908258] print_report+0x184/0x4be\n[ 3.909151] kasan_report+0xc5/0x100\n[ 3.909539] kasan_check_range+0xf3/0x1a0\n[ 3.909794] memcpy+0x1f/0x60\n[ 3.909968] nla_put+0xa9/0xe0\n[ 3.910147] tunnel_key_dump+0x945/0xba0\n[ 3.911536] tcf_action_dump_1+0x1c1/0x340\n[ 3.912436] tcf_action_dump+0x101/0x180\n[ 3.912689] tcf_exts_dump+0x164/0x1e0\n[ 3.912905] fw_dump+0x18b/0x2d0\n[ 3.913483] tcf_fill_node+0x2ee/0x460\n[ 3.914778] tfilter_notify+0xf4/0x180\n[ 3.915208] tc_new_tfilter+0xd51/0x10d0\n[ 3.918615] rtnetlink_rcv_msg+0x4a2/0x560\n[ 3.919118] netlink_rcv_skb+0xcd/0x200\n[ 3.919787] netlink_unicast+0x395/0x530\n[ 3.921032] netlink_sendmsg+0x3d0/0x6d0\n[ 3.921987] __sock_sendmsg+0x99/0xa0\n[ 3.922220] __sys_sendto+0x1b7/0x240\n[ 3.922682] __x64_sys_sendto+0x72/0x90\n[ 3.922906] do_syscall_64+0x5e/0x90\n[ 3.923814] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[ 3.924122] RIP: 0033:0x7e83eab84407\n[ 3.924331] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 \u003c5b\u003e c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf\n[ 3.925330] RSP: 002b:00007ffff505e370 EFLAGS: 00000202 ORIG_RAX: 000000000000002c\n[ 3.925752] RAX: ffffffffffffffda RBX: 00007e83eaafa740 RCX: 00007e83eab84407\n[ 3.926173] RDX: 00000000000001a8 RSI: 00007ffff505e3c0 RDI: 0000000000000003\n[ 3.926587] RBP: 00007ffff505f460 R08: 00007e83eace1000 R09: 000000000000000c\n[ 3.926977] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffff505f3c0\n[ 3.927367] R13: 00007ffff505f5c8 R14: 00007e83ead1b000 R15: 00005d4fbbe6dcb8\n\nFix these issues by enforing correct length condition in related\npolicies."
}
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"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerability is reached by sending crafted rtnetlink/nfnetlink messages (tc filter/action, nftables tunnel object, or route lwtunnel encap) from a local socket, and the leaked data is returned in the netlink dump to the same local process. There is no remote packet path into the option-parsing or dump code.\nAC:L - The attacker fully controls both the malformed 128-byte option that fakes a zero length and the planted pseudo-header lengths inside the data, so the desynchronized walk and the resulting out-of-bounds read are deterministic and reproducible on every dump.\nPR:L - All entry points are gated only by namespace-relative CAP_NET_ADMIN (netlink_net_capable/ns_capable against net-\u003euser_ns), which any unprivileged local user obtains with `unshare -Urn`, and the required cls_flower/act_tunnel_key/nft_tunnel modules are autoloaded on demand.\nUI:N - The attacker installs the malformed geneve option and then dumps it back itself (tc filter show / nft list / ip route show); no action by any other user is needed.\nS:U - The out-of-bounds read stays within the kernel\u0027s own memory and the disclosed data is returned to the attacker through the same kernel security authority; no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - Up to ~124 bytes of adjacent kernel heap memory per option are copied into the netlink reply and handed directly to the attacker, and the read offset is attacker-steerable and repeatable, so heap grooming yields disclosure of kernel pointers and neighboring slab object contents (KASLR defeat), far beyond a small bounded leak.\nI:N - The truncated length field only drives read sizes and walk offsets in the dump/offload paths; the option data itself is stored within correctly bounded buffers, and no path was found where the confusion produces an out-of-bounds or otherwise attacker-controlled write.\nA:H - The slab-out-of-bounds read is confirmed by the KASAN splat in the fix commit and can fault and oops the kernel when the over-read crosses into a KFENCE guard page or unmapped memory following the allocation, and it can be triggered repeatedly by an unprivileged user."
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CVE-2025-71162 (GCVE-0-2025-71162)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-08-05 12:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: tegra-adma: Fix use-after-free
A use-after-free bug exists in the Tegra ADMA driver when audio streams
are terminated, particularly during XRUN conditions. The issue occurs
when the DMA buffer is freed by tegra_adma_terminate_all() before the
vchan completion tasklet finishes accessing it.
The race condition follows this sequence:
1. DMA transfer completes, triggering an interrupt that schedules the
completion tasklet (tasklet has not executed yet)
2. Audio playback stops, calling tegra_adma_terminate_all() which
frees the DMA buffer memory via kfree()
3. The scheduled tasklet finally executes, calling vchan_complete()
which attempts to access the already-freed memory
Since tasklets can execute at any time after being scheduled, there is
no guarantee that the buffer will remain valid when vchan_complete()
runs.
Fix this by properly synchronizing the virtual channel completion:
- Calling vchan_terminate_vdesc() in tegra_adma_stop() to mark the
descriptors as terminated instead of freeing the descriptor.
- Add the callback tegra_adma_synchronize() that calls
vchan_synchronize() which kills any pending tasklets and frees any
terminated descriptors.
Crash logs:
[ 337.427523] BUG: KASAN: use-after-free in vchan_complete+0x124/0x3b0
[ 337.427544] Read of size 8 at addr ffff000132055428 by task swapper/0/0
[ 337.427562] Call trace:
[ 337.427564] dump_backtrace+0x0/0x320
[ 337.427571] show_stack+0x20/0x30
[ 337.427575] dump_stack_lvl+0x68/0x84
[ 337.427584] print_address_description.constprop.0+0x74/0x2b8
[ 337.427590] kasan_report+0x1f4/0x210
[ 337.427598] __asan_load8+0xa0/0xd0
[ 337.427603] vchan_complete+0x124/0x3b0
[ 337.427609] tasklet_action_common.constprop.0+0x190/0x1d0
[ 337.427617] tasklet_action+0x30/0x40
[ 337.427623] __do_softirq+0x1a0/0x5c4
[ 337.427628] irq_exit+0x110/0x140
[ 337.427633] handle_domain_irq+0xa4/0xe0
[ 337.427640] gic_handle_irq+0x64/0x160
[ 337.427644] call_on_irq_stack+0x20/0x4c
[ 337.427649] do_interrupt_handler+0x7c/0x90
[ 337.427654] el1_interrupt+0x30/0x80
[ 337.427659] el1h_64_irq_handler+0x18/0x30
[ 337.427663] el1h_64_irq+0x7c/0x80
[ 337.427667] cpuidle_enter_state+0xe4/0x540
[ 337.427674] cpuidle_enter+0x54/0x80
[ 337.427679] do_idle+0x2e0/0x380
[ 337.427685] cpu_startup_entry+0x2c/0x70
[ 337.427690] rest_init+0x114/0x130
[ 337.427695] arch_call_rest_init+0x18/0x24
[ 337.427702] start_kernel+0x380/0x3b4
[ 337.427706] __primary_switched+0xc0/0xc8
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f46b195799b5cb05338e7c44cb3617eacb56d755 Version: f46b195799b5cb05338e7c44cb3617eacb56d755 Version: f46b195799b5cb05338e7c44cb3617eacb56d755 Version: f46b195799b5cb05338e7c44cb3617eacb56d755 Version: f46b195799b5cb05338e7c44cb3617eacb56d755 Version: f46b195799b5cb05338e7c44cb3617eacb56d755 Version: f46b195799b5cb05338e7c44cb3617eacb56d755 |
||
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CVE-2026-46300 (GCVE-0-2026-46300)
Vulnerability from cvelistv5
Published
2026-05-23 11:44
Modified
2026-08-24 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: skbuff: preserve shared-frag marker during coalescing
skb_try_coalesce() can attach paged frags from @from to @to. If @from
has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same
externally-owned or page-cache-backed frags, but the shared-frag marker
is currently lost.
That breaks the invariant relied on by later in-place writers. In
particular, ESP input checks skb_has_shared_frag() before deciding
whether an uncloned nonlinear skb can skip skb_cow_data(). If TCP
receive coalescing has moved shared frags into an unmarked skb, ESP can
see skb_has_shared_frag() as false and decrypt in place over page-cache
backed frags.
Propagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged
frags. The tailroom copy path does not need the marker because it copies
bytes into @to's linear data rather than transferring frag descriptors.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 Version: cef401de7be8c4e155c6746bfccf721a4fa5fab9 |
||
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CVE-2026-23060 (GCVE-0-2026-23060)
Vulnerability from cvelistv5
Published
2026-02-04 16:07
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than
the minimum expected length, crypto_authenc_esn_decrypt() can advance past
the end of the destination scatterlist and trigger a NULL pointer dereference
in scatterwalk_map_and_copy(), leading to a kernel panic (DoS).
Add a minimum AAD length check to fail fast on invalid inputs.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 104880a6b470958ddc30e139c41aa4f6ed3a5234 Version: 104880a6b470958ddc30e139c41aa4f6ed3a5234 Version: 104880a6b470958ddc30e139c41aa4f6ed3a5234 Version: 104880a6b470958ddc30e139c41aa4f6ed3a5234 Version: 104880a6b470958ddc30e139c41aa4f6ed3a5234 Version: 104880a6b470958ddc30e139c41aa4f6ed3a5234 Version: 104880a6b470958ddc30e139c41aa4f6ed3a5234 |
||
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CVE-2026-23463 (GCVE-0-2026-23463)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
soc: fsl: qbman: fix race condition in qman_destroy_fq
When QMAN_FQ_FLAG_DYNAMIC_FQID is set, there's a race condition between
fq_table[fq->idx] state and freeing/allocating from the pool and
WARN_ON(fq_table[fq->idx]) in qman_create_fq() gets triggered.
Indeed, we can have:
Thread A Thread B
qman_destroy_fq() qman_create_fq()
qman_release_fqid()
qman_shutdown_fq()
gen_pool_free()
-- At this point, the fqid is available again --
qman_alloc_fqid()
-- so, we can get the just-freed fqid in thread B --
fq->fqid = fqid;
fq->idx = fqid * 2;
WARN_ON(fq_table[fq->idx]);
fq_table[fq->idx] = fq;
fq_table[fq->idx] = NULL;
And adding some logs between qman_release_fqid() and
fq_table[fq->idx] = NULL makes the WARN_ON() trigger a lot more.
To prevent that, ensure that fq_table[fq->idx] is set to NULL before
gen_pool_free() is called by using smp_wmb().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c535e923bb97a4b361e89a6383693482057f8b0c Version: c535e923bb97a4b361e89a6383693482057f8b0c Version: c535e923bb97a4b361e89a6383693482057f8b0c Version: c535e923bb97a4b361e89a6383693482057f8b0c Version: c535e923bb97a4b361e89a6383693482057f8b0c Version: c535e923bb97a4b361e89a6383693482057f8b0c Version: c535e923bb97a4b361e89a6383693482057f8b0c Version: c535e923bb97a4b361e89a6383693482057f8b0c |
||
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CVE-2025-21645 (GCVE-0-2025-21645)
Vulnerability from cvelistv5
Published
2025-01-19 10:18
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
platform/x86/amd/pmc: Only disable IRQ1 wakeup where i8042 actually enabled it
Wakeup for IRQ1 should be disabled only in cases where i8042 had
actually enabled it, otherwise "wake_depth" for this IRQ will try to
drop below zero and there will be an unpleasant WARN() logged:
kernel: atkbd serio0: Disabling IRQ1 wakeup source to avoid platform firmware bug
kernel: ------------[ cut here ]------------
kernel: Unbalanced IRQ 1 wake disable
kernel: WARNING: CPU: 10 PID: 6431 at kernel/irq/manage.c:920 irq_set_irq_wake+0x147/0x1a0
The PMC driver uses DEFINE_SIMPLE_DEV_PM_OPS() to define its dev_pm_ops
which sets amd_pmc_suspend_handler() to the .suspend, .freeze, and
.poweroff handlers. i8042_pm_suspend(), however, is only set as
the .suspend handler.
Fix the issue by call PMC suspend handler only from the same set of
dev_pm_ops handlers as i8042_pm_suspend(), which currently means just
the .suspend handler.
To reproduce this issue try hibernating (S4) the machine after a fresh boot
without putting it into s2idle first.
[ij: edited the commit message.]
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 72e5a83b7c8401856cc3732150af24e43726717a Version: 8e60615e8932167057b363c11a7835da7f007106 Version: 8e60615e8932167057b363c11a7835da7f007106 Version: 8e60615e8932167057b363c11a7835da7f007106 Version: 3fc9dc0340e0b5df8059313537b55f82c1e84e94 Version: 6.1.11 ≤ Version: 5.15.95 ≤ |
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CVE-2026-31761 (GCVE-0-2026-31761)
Vulnerability from cvelistv5
Published
2026-05-01 14:14
Modified
2026-08-05 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
iio: gyro: mpu3050: Move iio_device_register() to correct location
iio_device_register() should be at the end of the probe function to
prevent race conditions.
Place iio_device_register() at the end of the probe function and place
iio_device_unregister() accordingly.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 Version: 3904b28efb2c780c23dcddfb87e07fe0230661e5 |
||
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CVE-2025-39773 (GCVE-0-2025-39773)
Vulnerability from cvelistv5
Published
2025-09-11 16:56
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: bridge: fix soft lockup in br_multicast_query_expired()
When set multicast_query_interval to a large value, the local variable
'time' in br_multicast_send_query() may overflow. If the time is smaller
than jiffies, the timer will expire immediately, and then call mod_timer()
again, which creates a loop and may trigger the following soft lockup
issue.
watchdog: BUG: soft lockup - CPU#1 stuck for 221s! [rb_consumer:66]
CPU: 1 UID: 0 PID: 66 Comm: rb_consumer Not tainted 6.16.0+ #259 PREEMPT(none)
Call Trace:
<IRQ>
__netdev_alloc_skb+0x2e/0x3a0
br_ip6_multicast_alloc_query+0x212/0x1b70
__br_multicast_send_query+0x376/0xac0
br_multicast_send_query+0x299/0x510
br_multicast_query_expired.constprop.0+0x16d/0x1b0
call_timer_fn+0x3b/0x2a0
__run_timers+0x619/0x950
run_timer_softirq+0x11c/0x220
handle_softirqs+0x18e/0x560
__irq_exit_rcu+0x158/0x1a0
sysvec_apic_timer_interrupt+0x76/0x90
</IRQ>
This issue can be reproduced with:
ip link add br0 type bridge
echo 1 > /sys/class/net/br0/bridge/multicast_querier
echo 0xffffffffffffffff >
/sys/class/net/br0/bridge/multicast_query_interval
ip link set dev br0 up
The multicast_startup_query_interval can also cause this issue. Similar to
the commit 99b40610956a ("net: bridge: mcast: add and enforce query
interval minimum"), add check for the query interval maximum to fix this
issue.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d902eee43f1951b358d7347d9165c6af21cf7b1b Version: d902eee43f1951b358d7347d9165c6af21cf7b1b Version: d902eee43f1951b358d7347d9165c6af21cf7b1b Version: d902eee43f1951b358d7347d9165c6af21cf7b1b Version: d902eee43f1951b358d7347d9165c6af21cf7b1b Version: d902eee43f1951b358d7347d9165c6af21cf7b1b |
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CVE-2025-68371 (GCVE-0-2025-68371)
Vulnerability from cvelistv5
Published
2025-12-24 10:33
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: smartpqi: Fix device resources accessed after device removal
Correct possible race conditions during device removal.
Previously, a scheduled work item to reset a LUN could still execute
after the device was removed, leading to use-after-free and other
resource access issues.
This race condition occurs because the abort handler may schedule a LUN
reset concurrently with device removal via sdev_destroy(), leading to
use-after-free and improper access to freed resources.
- Check in the device reset handler if the device is still present in
the controller's SCSI device list before running; if not, the reset
is skipped.
- Cancel any pending TMF work that has not started in sdev_destroy().
- Ensure device freeing in sdev_destroy() is done while holding the
LUN reset mutex to avoid races with ongoing resets.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2d80f4054f7f901b8ad97358a9069616ac8524c7 Version: 2d80f4054f7f901b8ad97358a9069616ac8524c7 Version: 2d80f4054f7f901b8ad97358a9069616ac8524c7 Version: 2d80f4054f7f901b8ad97358a9069616ac8524c7 Version: 2d80f4054f7f901b8ad97358a9069616ac8524c7 Version: 2d80f4054f7f901b8ad97358a9069616ac8524c7 |
||
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CVE-2025-68363 (GCVE-0-2025-68363)
Vulnerability from cvelistv5
Published
2025-12-24 10:32
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Check skb->transport_header is set in bpf_skb_check_mtu
The bpf_skb_check_mtu helper needs to use skb->transport_header when
the BPF_MTU_CHK_SEGS flag is used:
bpf_skb_check_mtu(skb, ifindex, &mtu_len, 0, BPF_MTU_CHK_SEGS)
The transport_header is not always set. There is a WARN_ON_ONCE
report when CONFIG_DEBUG_NET is enabled + skb->gso_size is set +
bpf_prog_test_run is used:
WARNING: CPU: 1 PID: 2216 at ./include/linux/skbuff.h:3071
skb_gso_validate_network_len
bpf_skb_check_mtu
bpf_prog_3920e25740a41171_tc_chk_segs_flag # A test in the next patch
bpf_test_run
bpf_prog_test_run_skb
For a normal ingress skb (not test_run), skb_reset_transport_header
is performed but there is plan to avoid setting it as described in
commit 2170a1f09148 ("net: no longer reset transport_header in __netif_receive_skb_core()").
This patch fixes the bpf helper by checking
skb_transport_header_was_set(). The check is done just before
skb->transport_header is used, to avoid breaking the existing bpf prog.
The WARN_ON_ONCE is limited to bpf_prog_test_run, so targeting bpf-next.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-71189 (GCVE-0-2025-71189)
Vulnerability from cvelistv5
Published
2026-01-31 11:42
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: dw: dmamux: fix OF node leak on route allocation failure
Make sure to drop the reference taken to the DMA master OF node also on
late route allocation failures.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-23242 (GCVE-0-2026-23242)
Vulnerability from cvelistv5
Published
2026-03-18 10:05
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix potential NULL pointer dereference in header processing
If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(),
qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data()
dereferences qp->rx_fpdu->more_ddp_segs without checking, which
may lead to a NULL pointer deref. Only check more_ddp_segs when
rx_fpdu is present.
KASAN splat:
[ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]
[ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2024-50164 (GCVE-0-2024-50164)
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2026-08-05 11:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix overloading of MEM_UNINIT's meaning
Lonial reported an issue in the BPF verifier where check_mem_size_reg()
has the following code:
if (!tnum_is_const(reg->var_off))
/* For unprivileged variable accesses, disable raw
* mode so that the program is required to
* initialize all the memory that the helper could
* just partially fill up.
*/
meta = NULL;
This means that writes are not checked when the register containing the
size of the passed buffer has not a fixed size. Through this bug, a BPF
program can write to a map which is marked as read-only, for example,
.rodata global maps.
The problem is that MEM_UNINIT's initial meaning that "the passed buffer
to the BPF helper does not need to be initialized" which was added back
in commit 435faee1aae9 ("bpf, verifier: add ARG_PTR_TO_RAW_STACK type")
got overloaded over time with "the passed buffer is being written to".
The problem however is that checks such as the above which were added later
via 06c1c049721a ("bpf: allow helpers access to variable memory") set meta
to NULL in order force the user to always initialize the passed buffer to
the helper. Due to the current double meaning of MEM_UNINIT, this bypasses
verifier write checks to the memory (not boundary checks though) and only
assumes the latter memory is read instead.
Fix this by reverting MEM_UNINIT back to its original meaning, and having
MEM_WRITE as an annotation to BPF helpers in order to then trigger the
BPF verifier checks for writing to memory.
Some notes: check_arg_pair_ok() ensures that for ARG_CONST_SIZE{,_OR_ZERO}
we can access fn->arg_type[arg - 1] since it must contain a preceding
ARG_PTR_TO_MEM. For check_mem_reg() the meta argument can be removed
altogether since we do check both BPF_READ and BPF_WRITE. Same for the
equivalent check_kfunc_mem_size_reg().
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 97e6d7dab1ca4648821c790a2b7913d6d5d549db Version: 97e6d7dab1ca4648821c790a2b7913d6d5d549db Version: 97e6d7dab1ca4648821c790a2b7913d6d5d549db Version: 97e6d7dab1ca4648821c790a2b7913d6d5d549db Version: 6099a6c8a749a5c8d5f8b4c4342022a92072a02b Version: bfe25df63048edd4ceaf78a2fc755d5e2befc978 Version: 717c39718dbc4f7ebcbb7b625fb11851cd9007fe Version: 5d0bba8232bf22ce13747cbfc8f696318ff01a50 Version: 70674d11d14eeecad90be4b409a22b902112ba32 Version: a08d942ecbf46e23a192093f6983cb1d779f4fa8 Version: 5.15.45 ≤ Version: 5.17.13 ≤ Version: 5.18.2 ≤ |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix overloading of MEM_UNINIT\u0027s meaning\n\nLonial reported an issue in the BPF verifier where check_mem_size_reg()\nhas the following code:\n\n if (!tnum_is_const(reg-\u003evar_off))\n /* For unprivileged variable accesses, disable raw\n * mode so that the program is required to\n * initialize all the memory that the helper could\n * just partially fill up.\n */\n meta = NULL;\n\nThis means that writes are not checked when the register containing the\nsize of the passed buffer has not a fixed size. Through this bug, a BPF\nprogram can write to a map which is marked as read-only, for example,\n.rodata global maps.\n\nThe problem is that MEM_UNINIT\u0027s initial meaning that \"the passed buffer\nto the BPF helper does not need to be initialized\" which was added back\nin commit 435faee1aae9 (\"bpf, verifier: add ARG_PTR_TO_RAW_STACK type\")\ngot overloaded over time with \"the passed buffer is being written to\".\n\nThe problem however is that checks such as the above which were added later\nvia 06c1c049721a (\"bpf: allow helpers access to variable memory\") set meta\nto NULL in order force the user to always initialize the passed buffer to\nthe helper. Due to the current double meaning of MEM_UNINIT, this bypasses\nverifier write checks to the memory (not boundary checks though) and only\nassumes the latter memory is read instead.\n\nFix this by reverting MEM_UNINIT back to its original meaning, and having\nMEM_WRITE as an annotation to BPF helpers in order to then trigger the\nBPF verifier checks for writing to memory.\n\nSome notes: check_arg_pair_ok() ensures that for ARG_CONST_SIZE{,_OR_ZERO}\nwe can access fn-\u003earg_type[arg - 1] since it must contain a preceding\nARG_PTR_TO_MEM. For check_mem_reg() the meta argument can be removed\naltogether since we do check both BPF_READ and BPF_WRITE. Same for the\nequivalent check_kfunc_mem_size_reg()."
}
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{
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"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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{
"lang": "en",
"value": "AV:L - The vulnerability is reached through the bpf(2) syscall (BPF_MAP_CREATE/BPF_MAP_FREEZE/BPF_PROG_LOAD) by a process on the local system. Per kernel scoring guidance, BPF verifier bugs are Local.\nAC:L - The attacker fully authors the BPF program and the map contents; passing a non-constant size register to a helper such as bpf_skb_load_bytes() deterministically bypasses the write check every time. No race, timing window, or uncontrolled memory layout is involved.\nPR:L - An unprivileged local user can load a BPF_PROG_TYPE_SOCKET_FILTER program reaching bpf_skb_load_bytes() when kernel.unprivileged_bpf_disabled=0 (default on kernels without CONFIG_BPF_UNPRIV_DEFAULT_OFF, e.g. Android and many embedded builds), and CAP_BPF is delegable into unprivileged user namespaces via BPF tokens (bpf_token_capable() uses ns_capable). No real root in the init namespace is needed.\nUI:N - The attacker performs every step itself \u2014 creating and freezing the map, loading the program, and triggering it (e.g. by sending a packet to its own socket). No other user\u0027s action is required.\nS:U - The verifier bypass and its impact are both within the kernel\u0027s own security authority; this is a standard local privilege escalation with no VM, IOMMU, or hypervisor boundary crossed.\nC:H - Writing to a frozen BPF_F_RDONLY_PROG map desynchronizes the values the verifier constant-folded via bpf_map_direct_read()/__mark_reg_known() from the values used at runtime, so bounds the verifier proved safe become arbitrarily out-of-bounds, yielding an arbitrary kernel memory read primitive.\nI:H - The bug directly permits a BPF program to write into memory the verifier guarantees is immutable (.rodata global maps, PTR_TO_MAP_KEY, read-only PTR_TO_MEM/PTR_TO_BUF, and program context), and the resulting verifier invariant break escalates to an arbitrary kernel write and full privilege escalation.\nA:H - Out-of-bounds kernel reads and writes resulting from the broken verifier bounds reasoning readily corrupt kernel memory and panic the system, and the attacker can trigger this repeatedly."
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CVE-2025-22111 (GCVE-0-2025-22111)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: Remove RTNL dance for SIOCBRADDIF and SIOCBRDELIF.
SIOCBRDELIF is passed to dev_ioctl() first and later forwarded to
br_ioctl_call(), which causes unnecessary RTNL dance and the splat
below [0] under RTNL pressure.
Let's say Thread A is trying to detach a device from a bridge and
Thread B is trying to remove the bridge.
In dev_ioctl(), Thread A bumps the bridge device's refcnt by
netdev_hold() and releases RTNL because the following br_ioctl_call()
also re-acquires RTNL.
In the race window, Thread B could acquire RTNL and try to remove
the bridge device. Then, rtnl_unlock() by Thread B will release RTNL
and wait for netdev_put() by Thread A.
Thread A, however, must hold RTNL after the unlock in dev_ifsioc(),
which may take long under RTNL pressure, resulting in the splat by
Thread B.
Thread A (SIOCBRDELIF) Thread B (SIOCBRDELBR)
---------------------- ----------------------
sock_ioctl sock_ioctl
`- sock_do_ioctl `- br_ioctl_call
`- dev_ioctl `- br_ioctl_stub
|- rtnl_lock |
|- dev_ifsioc '
' |- dev = __dev_get_by_name(...)
|- netdev_hold(dev, ...) .
/ |- rtnl_unlock ------. |
| |- br_ioctl_call `---> |- rtnl_lock
Race | | `- br_ioctl_stub |- br_del_bridge
Window | | | |- dev = __dev_get_by_name(...)
| | | May take long | `- br_dev_delete(dev, ...)
| | | under RTNL pressure | `- unregister_netdevice_queue(dev, ...)
| | | | `- rtnl_unlock
\ | |- rtnl_lock <-' `- netdev_run_todo
| |- ... `- netdev_run_todo
| `- rtnl_unlock |- __rtnl_unlock
| |- netdev_wait_allrefs_any
|- netdev_put(dev, ...) <----------------'
Wait refcnt decrement
and log splat below
To avoid blocking SIOCBRDELBR unnecessarily, let's not call
dev_ioctl() for SIOCBRADDIF and SIOCBRDELIF.
In the dev_ioctl() path, we do the following:
1. Copy struct ifreq by get_user_ifreq in sock_do_ioctl()
2. Check CAP_NET_ADMIN in dev_ioctl()
3. Call dev_load() in dev_ioctl()
4. Fetch the master dev from ifr.ifr_name in dev_ifsioc()
3. can be done by request_module() in br_ioctl_call(), so we move
1., 2., and 4. to br_ioctl_stub().
Note that 2. is also checked later in add_del_if(), but it's better
performed before RTNL.
SIOCBRADDIF and SIOCBRDELIF have been processed in dev_ioctl() since
the pre-git era, and there seems to be no specific reason to process
them there.
[0]:
unregister_netdevice: waiting for wpan3 to become free. Usage count = 2
ref_tracker: wpan3@ffff8880662d8608 has 1/1 users at
__netdev_tracker_alloc include/linux/netdevice.h:4282 [inline]
netdev_hold include/linux/netdevice.h:4311 [inline]
dev_ifsioc+0xc6a/0x1160 net/core/dev_ioctl.c:624
dev_ioctl+0x255/0x10c0 net/core/dev_ioctl.c:826
sock_do_ioctl+0x1ca/0x260 net/socket.c:1213
sock_ioctl+0x23a/0x6c0 net/socket.c:1318
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x1a4/0x210 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcb/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 893b195875340cb44b54c9db99e708145f1210e8 Version: 893b195875340cb44b54c9db99e708145f1210e8 Version: 893b195875340cb44b54c9db99e708145f1210e8 Version: 893b195875340cb44b54c9db99e708145f1210e8 Version: 893b195875340cb44b54c9db99e708145f1210e8 Version: 893b195875340cb44b54c9db99e708145f1210e8 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Remove RTNL dance for SIOCBRADDIF and SIOCBRDELIF.\n\nSIOCBRDELIF is passed to dev_ioctl() first and later forwarded to\nbr_ioctl_call(), which causes unnecessary RTNL dance and the splat\nbelow [0] under RTNL pressure.\n\nLet\u0027s say Thread A is trying to detach a device from a bridge and\nThread B is trying to remove the bridge.\n\nIn dev_ioctl(), Thread A bumps the bridge device\u0027s refcnt by\nnetdev_hold() and releases RTNL because the following br_ioctl_call()\nalso re-acquires RTNL.\n\nIn the race window, Thread B could acquire RTNL and try to remove\nthe bridge device. Then, rtnl_unlock() by Thread B will release RTNL\nand wait for netdev_put() by Thread A.\n\nThread A, however, must hold RTNL after the unlock in dev_ifsioc(),\nwhich may take long under RTNL pressure, resulting in the splat by\nThread B.\n\n Thread A (SIOCBRDELIF) Thread B (SIOCBRDELBR)\n ---------------------- ----------------------\n sock_ioctl sock_ioctl\n `- sock_do_ioctl `- br_ioctl_call\n `- dev_ioctl `- br_ioctl_stub\n |- rtnl_lock |\n |- dev_ifsioc \u0027\n \u0027 |- dev = __dev_get_by_name(...)\n |- netdev_hold(dev, ...) .\n / |- rtnl_unlock ------. |\n | |- br_ioctl_call `---\u003e |- rtnl_lock\n Race | | `- br_ioctl_stub |- br_del_bridge\n Window | | | |- dev = __dev_get_by_name(...)\n | | | May take long | `- br_dev_delete(dev, ...)\n | | | under RTNL pressure | `- unregister_netdevice_queue(dev, ...)\n | | | | `- rtnl_unlock\n \\ | |- rtnl_lock \u003c-\u0027 `- netdev_run_todo\n | |- ... `- netdev_run_todo\n | `- rtnl_unlock |- __rtnl_unlock\n | |- netdev_wait_allrefs_any\n |- netdev_put(dev, ...) \u003c----------------\u0027\n Wait refcnt decrement\n and log splat below\n\nTo avoid blocking SIOCBRDELBR unnecessarily, let\u0027s not call\ndev_ioctl() for SIOCBRADDIF and SIOCBRDELIF.\n\nIn the dev_ioctl() path, we do the following:\n\n 1. Copy struct ifreq by get_user_ifreq in sock_do_ioctl()\n 2. Check CAP_NET_ADMIN in dev_ioctl()\n 3. Call dev_load() in dev_ioctl()\n 4. Fetch the master dev from ifr.ifr_name in dev_ifsioc()\n\n3. can be done by request_module() in br_ioctl_call(), so we move\n1., 2., and 4. to br_ioctl_stub().\n\nNote that 2. is also checked later in add_del_if(), but it\u0027s better\nperformed before RTNL.\n\nSIOCBRADDIF and SIOCBRDELIF have been processed in dev_ioctl() since\nthe pre-git era, and there seems to be no specific reason to process\nthem there.\n\n[0]:\nunregister_netdevice: waiting for wpan3 to become free. Usage count = 2\nref_tracker: wpan3@ffff8880662d8608 has 1/1 users at\n __netdev_tracker_alloc include/linux/netdevice.h:4282 [inline]\n netdev_hold include/linux/netdevice.h:4311 [inline]\n dev_ifsioc+0xc6a/0x1160 net/core/dev_ioctl.c:624\n dev_ioctl+0x255/0x10c0 net/core/dev_ioctl.c:826\n sock_do_ioctl+0x1ca/0x260 net/socket.c:1213\n sock_ioctl+0x23a/0x6c0 net/socket.c:1318\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:906 [inline]\n __se_sys_ioctl fs/ioctl.c:892 [inline]\n __x64_sys_ioctl+0x1a4/0x210 fs/ioctl.c:892\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcb/0x250 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f"
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CVE-2025-68787 (GCVE-0-2025-68787)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netrom: Fix memory leak in nr_sendmsg()
syzbot reported a memory leak [1].
When function sock_alloc_send_skb() return NULL in nr_output(), the
original skb is not freed, which was allocated in nr_sendmsg(). Fix this
by freeing it before return.
[1]
BUG: memory leak
unreferenced object 0xffff888129f35500 (size 240):
comm "syz.0.17", pid 6119, jiffies 4294944652
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 10 52 28 81 88 ff ff ..........R(....
backtrace (crc 1456a3e4):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4983 [inline]
slab_alloc_node mm/slub.c:5288 [inline]
kmem_cache_alloc_node_noprof+0x36f/0x5e0 mm/slub.c:5340
__alloc_skb+0x203/0x240 net/core/skbuff.c:660
alloc_skb include/linux/skbuff.h:1383 [inline]
alloc_skb_with_frags+0x69/0x3f0 net/core/skbuff.c:6671
sock_alloc_send_pskb+0x379/0x3e0 net/core/sock.c:2965
sock_alloc_send_skb include/net/sock.h:1859 [inline]
nr_sendmsg+0x287/0x450 net/netrom/af_netrom.c:1105
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg net/socket.c:742 [inline]
sock_write_iter+0x293/0x2a0 net/socket.c:1195
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0x45d/0x710 fs/read_write.c:686
ksys_write+0x143/0x170 fs/read_write.c:738
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xa4/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2025-22015 (GCVE-0-2025-22015)
Vulnerability from cvelistv5
Published
2025-04-08 08:18
Modified
2026-08-05 11:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/migrate: fix shmem xarray update during migration
A shmem folio can be either in page cache or in swap cache, but not at the
same time. Namely, once it is in swap cache, folio->mapping should be
NULL, and the folio is no longer in a shmem mapping.
In __folio_migrate_mapping(), to determine the number of xarray entries to
update, folio_test_swapbacked() is used, but that conflates shmem in page
cache case and shmem in swap cache case. It leads to xarray multi-index
entry corruption, since it turns a sibling entry to a normal entry during
xas_store() (see [1] for a userspace reproduction). Fix it by only using
folio_test_swapcache() to determine whether xarray is storing swap cache
entries or not to choose the right number of xarray entries to update.
[1] https://lore.kernel.org/linux-mm/Z8idPCkaJW1IChjT@casper.infradead.org/
Note:
In __split_huge_page(), folio_test_anon() && folio_test_swapcache() is
used to get swap_cache address space, but that ignores the shmem folio in
swap cache case. It could lead to NULL pointer dereferencing when a
in-swap-cache shmem folio is split at __xa_store(), since
!folio_test_anon() is true and folio->mapping is NULL. But fortunately,
its caller split_huge_page_to_list_to_order() bails out early with EBUSY
when folio->mapping is NULL. So no need to take care of it here.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: be72d197b2281e2ee3f28017fc9be1ab17e26d16 Version: 07550b1461d4d0499165e7d6f7718cfd0e440427 Version: fc346d0a70a13d52fe1c4bc49516d83a42cd7c4c Version: fc346d0a70a13d52fe1c4bc49516d83a42cd7c4c Version: fc346d0a70a13d52fe1c4bc49516d83a42cd7c4c Version: 6.1.71 ≤ Version: 6.6.10 ≤ |
||
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CVE-2024-28956 (GCVE-0-2024-28956)
Vulnerability from cvelistv5
Published
2025-05-13 21:02
Modified
2026-07-14 12:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Information Disclosure
- CWE-1421 - Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution
Summary
Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Intel(R) Processors |
Version: See references |
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CVE-2025-21853 (GCVE-0-2025-21853)
Vulnerability from cvelistv5
Published
2025-03-12 09:42
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: avoid holding freeze_mutex during mmap operation
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memory mapping BPF map contents with writable permissions. The way we
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proceed with mmap logic. And only if something went wrong during mmap
logic, then undo that "write active" counter increment.
[0] https://lore.kernel.org/bpf/678dcbc9.050a0220.303755.0066.GAE@google.com/
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2025-68776 (GCVE-0-2025-68776)
Vulnerability from cvelistv5
Published
2026-01-13 15:28
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/hsr: fix NULL pointer dereference in prp_get_untagged_frame()
prp_get_untagged_frame() calls __pskb_copy() to create frame->skb_std
but doesn't check if the allocation failed. If __pskb_copy() returns
NULL, skb_clone() is called with a NULL pointer, causing a crash:
Oops: general protection fault, probably for non-canonical address 0xdffffc000000000f: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f]
CPU: 0 UID: 0 PID: 5625 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:skb_clone+0xd7/0x3a0 net/core/skbuff.c:2041
Code: 03 42 80 3c 20 00 74 08 4c 89 f7 e8 23 29 05 f9 49 83 3e 00 0f 85 a0 01 00 00 e8 94 dd 9d f8 48 8d 6b 7e 49 89 ee 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 d1 01 00 00 44 0f b6 7d 00 41 83 e7 0c
RSP: 0018:ffffc9000d00f200 EFLAGS: 00010207
RAX: ffffffff892235a1 RBX: 0000000000000000 RCX: ffff88803372a480
RDX: 0000000000000000 RSI: 0000000000000820 RDI: 0000000000000000
RBP: 000000000000007e R08: ffffffff8f7d0f77 R09: 1ffffffff1efa1ee
R10: dffffc0000000000 R11: fffffbfff1efa1ef R12: dffffc0000000000
R13: 0000000000000820 R14: 000000000000000f R15: ffff88805144cc00
FS: 0000555557f6d500(0000) GS:ffff88808d72f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555581d35808 CR3: 000000005040e000 CR4: 0000000000352ef0
Call Trace:
<TASK>
hsr_forward_do net/hsr/hsr_forward.c:-1 [inline]
hsr_forward_skb+0x1013/0x2860 net/hsr/hsr_forward.c:741
hsr_handle_frame+0x6ce/0xa70 net/hsr/hsr_slave.c:84
__netif_receive_skb_core+0x10b9/0x4380 net/core/dev.c:5966
__netif_receive_skb_one_core net/core/dev.c:6077 [inline]
__netif_receive_skb+0x72/0x380 net/core/dev.c:6192
netif_receive_skb_internal net/core/dev.c:6278 [inline]
netif_receive_skb+0x1cb/0x790 net/core/dev.c:6337
tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485
tun_get_user+0x2b65/0x3e90 drivers/net/tun.c:1953
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0x5c9/0xb30 fs/read_write.c:686
ksys_write+0x145/0x250 fs/read_write.c:738
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0449f8e1ff
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007ffd7ad94c90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f044a1e5fa0 RCX: 00007f0449f8e1ff
RDX: 000000000000003e RSI: 0000200000000500 RDI: 00000000000000c8
RBP: 00007ffd7ad94d20 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000003e R11: 0000000000000293 R12: 0000000000000001
R13: 00007f044a1e5fa0 R14: 00007f044a1e5fa0 R15: 0000000000000003
</TASK>
Add a NULL check immediately after __pskb_copy() to handle allocation
failures gracefully.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f266a683a4804dc499efc6c2206ef68efed029d0 Version: f266a683a4804dc499efc6c2206ef68efed029d0 Version: f266a683a4804dc499efc6c2206ef68efed029d0 Version: f266a683a4804dc499efc6c2206ef68efed029d0 Version: f266a683a4804dc499efc6c2206ef68efed029d0 Version: f266a683a4804dc499efc6c2206ef68efed029d0 Version: f266a683a4804dc499efc6c2206ef68efed029d0 |
||
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"descriptions": [
{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/hsr: fix NULL pointer dereference in prp_get_untagged_frame()\n\nprp_get_untagged_frame() calls __pskb_copy() to create frame-\u003eskb_std\nbut doesn\u0027t check if the allocation failed. If __pskb_copy() returns\nNULL, skb_clone() is called with a NULL pointer, causing a crash:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc000000000f: 0000 [#1] SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f]\nCPU: 0 UID: 0 PID: 5625 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nRIP: 0010:skb_clone+0xd7/0x3a0 net/core/skbuff.c:2041\nCode: 03 42 80 3c 20 00 74 08 4c 89 f7 e8 23 29 05 f9 49 83 3e 00 0f 85 a0 01 00 00 e8 94 dd 9d f8 48 8d 6b 7e 49 89 ee 49 c1 ee 03 \u003c43\u003e 0f b6 04 26 84 c0 0f 85 d1 01 00 00 44 0f b6 7d 00 41 83 e7 0c\nRSP: 0018:ffffc9000d00f200 EFLAGS: 00010207\nRAX: ffffffff892235a1 RBX: 0000000000000000 RCX: ffff88803372a480\nRDX: 0000000000000000 RSI: 0000000000000820 RDI: 0000000000000000\nRBP: 000000000000007e R08: ffffffff8f7d0f77 R09: 1ffffffff1efa1ee\nR10: dffffc0000000000 R11: fffffbfff1efa1ef R12: dffffc0000000000\nR13: 0000000000000820 R14: 000000000000000f R15: ffff88805144cc00\nFS: 0000555557f6d500(0000) GS:ffff88808d72f000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000555581d35808 CR3: 000000005040e000 CR4: 0000000000352ef0\nCall Trace:\n \u003cTASK\u003e\n hsr_forward_do net/hsr/hsr_forward.c:-1 [inline]\n hsr_forward_skb+0x1013/0x2860 net/hsr/hsr_forward.c:741\n hsr_handle_frame+0x6ce/0xa70 net/hsr/hsr_slave.c:84\n __netif_receive_skb_core+0x10b9/0x4380 net/core/dev.c:5966\n __netif_receive_skb_one_core net/core/dev.c:6077 [inline]\n __netif_receive_skb+0x72/0x380 net/core/dev.c:6192\n netif_receive_skb_internal net/core/dev.c:6278 [inline]\n netif_receive_skb+0x1cb/0x790 net/core/dev.c:6337\n tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485\n tun_get_user+0x2b65/0x3e90 drivers/net/tun.c:1953\n tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999\n new_sync_write fs/read_write.c:593 [inline]\n vfs_write+0x5c9/0xb30 fs/read_write.c:686\n ksys_write+0x145/0x250 fs/read_write.c:738\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f0449f8e1ff\nCode: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48\nRSP: 002b:00007ffd7ad94c90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 00007f044a1e5fa0 RCX: 00007f0449f8e1ff\nRDX: 000000000000003e RSI: 0000200000000500 RDI: 00000000000000c8\nRBP: 00007ffd7ad94d20 R08: 0000000000000000 R09: 0000000000000000\nR10: 000000000000003e R11: 0000000000000293 R12: 0000000000000001\nR13: 00007f044a1e5fa0 R14: 00007f044a1e5fa0 R15: 0000000000000003\n \u003c/TASK\u003e\n\nAdd a NULL check immediately after __pskb_copy() to handle allocation\nfailures gracefully."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:53:08.027Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/188e0fa5a679570ea35474575e724d8211423d17"
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"datePublished": "2026-01-13T15:28:52.766Z",
"dateReserved": "2025-12-24T10:30:51.035Z",
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}
CVE-2025-68261 (GCVE-0-2025-68261)
Vulnerability from cvelistv5
Published
2025-12-16 14:45
Modified
2026-08-05 12:10
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock()
Fix a race between inline data destruction and block mapping.
The function ext4_destroy_inline_data_nolock() changes the inode data
layout by clearing EXT4_INODE_INLINE_DATA and setting EXT4_INODE_EXTENTS.
At the same time, another thread may execute ext4_map_blocks(), which
tests EXT4_INODE_EXTENTS to decide whether to call ext4_ext_map_blocks()
or ext4_ind_map_blocks().
Without i_data_sem protection, ext4_ind_map_blocks() may receive inode
with EXT4_INODE_EXTENTS flag and triggering assert.
kernel BUG at fs/ext4/indirect.c:546!
EXT4-fs (loop2): unmounting filesystem.
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:ext4_ind_map_blocks.cold+0x2b/0x5a fs/ext4/indirect.c:546
Call Trace:
<TASK>
ext4_map_blocks+0xb9b/0x16f0 fs/ext4/inode.c:681
_ext4_get_block+0x242/0x590 fs/ext4/inode.c:822
ext4_block_write_begin+0x48b/0x12c0 fs/ext4/inode.c:1124
ext4_write_begin+0x598/0xef0 fs/ext4/inode.c:1255
ext4_da_write_begin+0x21e/0x9c0 fs/ext4/inode.c:3000
generic_perform_write+0x259/0x5d0 mm/filemap.c:3846
ext4_buffered_write_iter+0x15b/0x470 fs/ext4/file.c:285
ext4_file_write_iter+0x8e0/0x17f0 fs/ext4/file.c:679
call_write_iter include/linux/fs.h:2271 [inline]
do_iter_readv_writev+0x212/0x3c0 fs/read_write.c:735
do_iter_write+0x186/0x710 fs/read_write.c:861
vfs_iter_write+0x70/0xa0 fs/read_write.c:902
iter_file_splice_write+0x73b/0xc90 fs/splice.c:685
do_splice_from fs/splice.c:763 [inline]
direct_splice_actor+0x10f/0x170 fs/splice.c:950
splice_direct_to_actor+0x33a/0xa10 fs/splice.c:896
do_splice_direct+0x1a9/0x280 fs/splice.c:1002
do_sendfile+0xb13/0x12c0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64 fs/read_write.c:1309 [inline]
__x64_sys_sendfile64+0x1cf/0x210 fs/read_write.c:1309
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: c755e251357a0cee0679081f08c3f4ba797a8009 Version: 3e96c3fdcfccb321a9e1623f78cc71b44593e965 Version: 5781ac24bbd998ebb1ff30143bb06244d847af48 Version: 9b06cce3ca4d60d442c39bfa7c058b71b1cee6c2 Version: da1e40237f8f3516581b534c484c236a79ccfd14 Version: 7cf6b709b6412afd1d93b2c4b37163c3602e3b95 Version: 3.16.44 ≤ Version: 3.18.107 ≤ Version: 4.4.129 ≤ Version: 4.9.14 ≤ Version: 4.10.2 ≤ |
||
{
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"id": "CVE-2025-68261",
"options": [
{
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{
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{
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"role": "CISA Coordinator",
"timestamp": "2026-06-16T16:25:03.765473Z",
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}
],
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CVE-2025-21913 (GCVE-0-2025-21913)
Vulnerability from cvelistv5
Published
2025-04-01 15:40
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()
Xen doesn't offer MSR_FAM10H_MMIO_CONF_BASE to all guests. This results
in the following warning:
unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f (xen_do_read_msr+0x7f/0xa0)
Call Trace:
xen_read_msr+0x1e/0x30
amd_get_mmconfig_range+0x2b/0x80
quirk_amd_mmconfig_area+0x28/0x100
pnp_fixup_device+0x39/0x50
__pnp_add_device+0xf/0x150
pnp_add_device+0x3d/0x100
pnpacpi_add_device_handler+0x1f9/0x280
acpi_ns_get_device_callback+0x104/0x1c0
acpi_ns_walk_namespace+0x1d0/0x260
acpi_get_devices+0x8a/0xb0
pnpacpi_init+0x50/0x80
do_one_initcall+0x46/0x2e0
kernel_init_freeable+0x1da/0x2f0
kernel_init+0x16/0x1b0
ret_from_fork+0x30/0x50
ret_from_fork_asm+0x1b/0x30
based on quirks for a "PNP0c01" device. Treating MMCFG as disabled is the
right course of action, so no change is needed there.
This was most likely exposed by fixing the Xen MSR accessors to not be
silently-safe.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-31403 (GCVE-0-2026-31403)
Vulnerability from cvelistv5
Published
2026-04-03 15:16
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd
The /proc/fs/nfs/exports proc entry is created at module init
and persists for the module's lifetime. exports_proc_open()
captures the caller's current network namespace and stores
its svc_export_cache in seq->private, but takes no reference
on the namespace. If the namespace is subsequently torn down
(e.g. container destruction after the opener does setns() to a
different namespace), nfsd_net_exit() calls nfsd_export_shutdown()
which frees the cache. Subsequent reads on the still-open fd
dereference the freed cache_detail, walking a freed hash table.
Hold a reference on the struct net for the lifetime of the open
file descriptor. This prevents nfsd_net_exit() from running --
and thus prevents nfsd_export_shutdown() from freeing the cache
-- while any exports fd is open. cache_detail already stores
its net pointer (cd->net, set by cache_create_net()), so
exports_release() can retrieve it without additional per-file
storage.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 Version: 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 Version: 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 Version: 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 Version: 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 Version: 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 Version: 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 |
||
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CVE-2026-23273 (GCVE-0-2026-23273)
Vulnerability from cvelistv5
Published
2026-03-20 08:08
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
macvlan: observe an RCU grace period in macvlan_common_newlink() error path
valis reported that a race condition still happens after my prior patch.
macvlan_common_newlink() might have made @dev visible before
detecting an error, and its caller will directly call free_netdev(dev).
We must respect an RCU period, either in macvlan or the core networking
stack.
After adding a temporary mdelay(1000) in macvlan_forward_source_one()
to open the race window, valis repro was:
ip link add p1 type veth peer p2
ip link set address 00:00:00:00:00:20 dev p1
ip link set up dev p1
ip link set up dev p2
ip link add mv0 link p2 type macvlan mode source
(ip link add invalid% link p2 type macvlan mode source macaddr add
00:00:00:00:00:20 &) ; sleep 0.5 ; ping -c1 -I p1 1.2.3.4
PING 1.2.3.4 (1.2.3.4): 56 data bytes
RTNETLINK answers: Invalid argument
BUG: KASAN: slab-use-after-free in macvlan_forward_source
(drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
Read of size 8 at addr ffff888016bb89c0 by task e/175
CPU: 1 UID: 1000 PID: 175 Comm: e Not tainted 6.19.0-rc8+ #33 NONE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
Call Trace:
<IRQ>
dump_stack_lvl (lib/dump_stack.c:123)
print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)
? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
kasan_report (mm/kasan/report.c:597)
? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
? tasklet_init (kernel/softirq.c:983)
macvlan_handle_frame (drivers/net/macvlan.c:501)
Allocated by task 169:
kasan_save_stack (mm/kasan/common.c:58)
kasan_save_track (./arch/x86/include/asm/current.h:25
mm/kasan/common.c:70 mm/kasan/common.c:79)
__kasan_kmalloc (mm/kasan/common.c:419)
__kvmalloc_node_noprof (./include/linux/kasan.h:263 mm/slub.c:5657
mm/slub.c:7140)
alloc_netdev_mqs (net/core/dev.c:12012)
rtnl_create_link (net/core/rtnetlink.c:3648)
rtnl_newlink (net/core/rtnetlink.c:3830 net/core/rtnetlink.c:3957
net/core/rtnetlink.c:4072)
rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
netlink_rcv_skb (net/netlink/af_netlink.c:2550)
netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
netlink_sendmsg (net/netlink/af_netlink.c:1894)
__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)
__x64_sys_sendto (net/socket.c:2209)
do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)
Freed by task 169:
kasan_save_stack (mm/kasan/common.c:58)
kasan_save_track (./arch/x86/include/asm/current.h:25
mm/kasan/common.c:70 mm/kasan/common.c:79)
kasan_save_free_info (mm/kasan/generic.c:587)
__kasan_slab_free (mm/kasan/common.c:287)
kfree (mm/slub.c:6674 mm/slub.c:6882)
rtnl_newlink (net/core/rtnetlink.c:3845 net/core/rtnetlink.c:3957
net/core/rtnetlink.c:4072)
rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
netlink_rcv_skb (net/netlink/af_netlink.c:2550)
netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
netlink_sendmsg (net/netlink/af_netlink.c:1894)
__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)
__x64_sys_sendto (net/socket.c:2209)
do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: da5c6b8ae47e414be47e5e04def15b25d5c962dc Version: 5dae6b36a7cb7a4fcf4121b95e9ca7f96f816c8a Version: c43d0e787cbba569ec9d11579ed370b50fab6c9c Version: 11ba9f0dc865136174cb98834280fb21bbc950c7 Version: 986967a162142710076782d5b93daab93a892980 Version: cdedcd5aa3f3cb8b7ae0f87ab3a936d0bd583d66 Version: f8db6475a83649689c087a8f52486fcc53e627e9 Version: f8db6475a83649689c087a8f52486fcc53e627e9 Version: 5.10.250 ≤ Version: 5.15.200 ≤ Version: 6.1.163 ≤ Version: 6.6.124 ≤ Version: 6.12.70 ≤ Version: 6.18.10 ≤ |
||
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"descriptions": [
{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmacvlan: observe an RCU grace period in macvlan_common_newlink() error path\n\nvalis reported that a race condition still happens after my prior patch.\n\nmacvlan_common_newlink() might have made @dev visible before\ndetecting an error, and its caller will directly call free_netdev(dev).\n\nWe must respect an RCU period, either in macvlan or the core networking\nstack.\n\nAfter adding a temporary mdelay(1000) in macvlan_forward_source_one()\nto open the race window, valis repro was:\n\nip link add p1 type veth peer p2\nip link set address 00:00:00:00:00:20 dev p1\nip link set up dev p1\nip link set up dev p2\nip link add mv0 link p2 type macvlan mode source\n\n(ip link add invalid% link p2 type macvlan mode source macaddr add\n00:00:00:00:00:20 \u0026) ; sleep 0.5 ; ping -c1 -I p1 1.2.3.4\nPING 1.2.3.4 (1.2.3.4): 56 data bytes\nRTNETLINK answers: Invalid argument\n\nBUG: KASAN: slab-use-after-free in macvlan_forward_source\n(drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\nRead of size 8 at addr ffff888016bb89c0 by task e/175\n\nCPU: 1 UID: 1000 PID: 175 Comm: e Not tainted 6.19.0-rc8+ #33 NONE\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\nCall Trace:\n\u003cIRQ\u003e\ndump_stack_lvl (lib/dump_stack.c:123)\nprint_report (mm/kasan/report.c:379 mm/kasan/report.c:482)\n? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\nkasan_report (mm/kasan/report.c:597)\n? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\nmacvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\n? tasklet_init (kernel/softirq.c:983)\nmacvlan_handle_frame (drivers/net/macvlan.c:501)\n\nAllocated by task 169:\nkasan_save_stack (mm/kasan/common.c:58)\nkasan_save_track (./arch/x86/include/asm/current.h:25\nmm/kasan/common.c:70 mm/kasan/common.c:79)\n__kasan_kmalloc (mm/kasan/common.c:419)\n__kvmalloc_node_noprof (./include/linux/kasan.h:263 mm/slub.c:5657\nmm/slub.c:7140)\nalloc_netdev_mqs (net/core/dev.c:12012)\nrtnl_create_link (net/core/rtnetlink.c:3648)\nrtnl_newlink (net/core/rtnetlink.c:3830 net/core/rtnetlink.c:3957\nnet/core/rtnetlink.c:4072)\nrtnetlink_rcv_msg (net/core/rtnetlink.c:6958)\nnetlink_rcv_skb (net/netlink/af_netlink.c:2550)\nnetlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)\nnetlink_sendmsg (net/netlink/af_netlink.c:1894)\n__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)\n__x64_sys_sendto (net/socket.c:2209)\ndo_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)\n\nFreed by task 169:\nkasan_save_stack (mm/kasan/common.c:58)\nkasan_save_track (./arch/x86/include/asm/current.h:25\nmm/kasan/common.c:70 mm/kasan/common.c:79)\nkasan_save_free_info (mm/kasan/generic.c:587)\n__kasan_slab_free (mm/kasan/common.c:287)\nkfree (mm/slub.c:6674 mm/slub.c:6882)\nrtnl_newlink (net/core/rtnetlink.c:3845 net/core/rtnetlink.c:3957\nnet/core/rtnetlink.c:4072)\nrtnetlink_rcv_msg (net/core/rtnetlink.c:6958)\nnetlink_rcv_skb (net/netlink/af_netlink.c:2550)\nnetlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)\nnetlink_sendmsg (net/netlink/af_netlink.c:1894)\n__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)\n__x64_sys_sendto (net/socket.c:2209)\ndo_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)"
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"lang": "en",
"value": "AV:L - The vulnerability is triggered via netlink RTM_NEWLINK message to create a macvlan device, requiring local system access through the netlink socket interface.\nAC:L - The attacker controls both sides of the race \u2014 one thread creates the macvlan with an invalid name to trigger the error path, while another sends packets to trigger the UAF read. The reproducer demonstrates reliable exploitation.\nPR:L - Requires CAP_NET_ADMIN which is obtainable by an unprivileged user through user namespaces (unshare -Urn), making this reachable without real root privileges.\nUI:N - No user interaction is needed; the attacker triggers both the macvlan creation and the packet sending themselves.\nS:U - Standard kernel use-after-free vulnerability; impact stays within the same security authority (kernel context).\nC:H - Use-after-free on a macvlan_dev/net_device structure allows reading freed and potentially reallocated memory, providing arbitrary kernel memory disclosure through controlled heap spraying.\nI:H - Use-after-free enables heap spraying to control the freed object contents, providing arbitrary write primitives and potential control flow hijacking for code execution.\nA:H - The use-after-free causes kernel crashes (KASAN slab-use-after-free as shown in the commit message), resulting in denial of service."
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CVE-2024-50014 (GCVE-0-2024-50014)
Vulnerability from cvelistv5
Published
2024-10-21 18:54
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix access to uninitialised lock in fc replay path
The following kernel trace can be triggered with fstest generic/629 when
executed against a filesystem with fast-commit feature enabled:
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 866 Comm: mount Not tainted 6.10.0+ #11
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-prebuilt.qemu.org 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x66/0x90
register_lock_class+0x759/0x7d0
__lock_acquire+0x85/0x2630
? __find_get_block+0xb4/0x380
lock_acquire+0xd1/0x2d0
? __ext4_journal_get_write_access+0xd5/0x160
_raw_spin_lock+0x33/0x40
? __ext4_journal_get_write_access+0xd5/0x160
__ext4_journal_get_write_access+0xd5/0x160
ext4_reserve_inode_write+0x61/0xb0
__ext4_mark_inode_dirty+0x79/0x270
? ext4_ext_replay_set_iblocks+0x2f8/0x450
ext4_ext_replay_set_iblocks+0x330/0x450
ext4_fc_replay+0x14c8/0x1540
? jread+0x88/0x2e0
? rcu_is_watching+0x11/0x40
do_one_pass+0x447/0xd00
jbd2_journal_recover+0x139/0x1b0
jbd2_journal_load+0x96/0x390
ext4_load_and_init_journal+0x253/0xd40
ext4_fill_super+0x2cc6/0x3180
...
In the replay path there's an attempt to lock sbi->s_bdev_wb_lock in
function ext4_check_bdev_write_error(). Unfortunately, at this point this
spinlock has not been initialized yet. Moving it's initialization to an
earlier point in __ext4_fill_super() fixes this splat.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-39826 (GCVE-0-2025-39826)
Vulnerability from cvelistv5
Published
2025-09-16 13:00
Modified
2026-08-05 12:05
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: rose: convert 'use' field to refcount_t
The 'use' field in struct rose_neigh is used as a reference counter but
lacks atomicity. This can lead to race conditions where a rose_neigh
structure is freed while still being referenced by other code paths.
For example, when rose_neigh->use becomes zero during an ioctl operation
via rose_rt_ioctl(), the structure may be removed while its timer is
still active, potentially causing use-after-free issues.
This patch changes the type of 'use' from unsigned short to refcount_t and
updates all code paths to use rose_neigh_hold() and rose_neigh_put() which
operate reference counts atomically.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-39748 (GCVE-0-2025-39748)
Vulnerability from cvelistv5
Published
2025-09-11 16:52
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Forget ranges when refining tnum after JSET
Syzbot reported a kernel warning due to a range invariant violation on
the following BPF program.
0: call bpf_get_netns_cookie
1: if r0 == 0 goto <exit>
2: if r0 & Oxffffffff goto <exit>
The issue is on the path where we fall through both jumps.
That path is unreachable at runtime: after insn 1, we know r0 != 0, but
with the sign extension on the jset, we would only fallthrough insn 2
if r0 == 0. Unfortunately, is_branch_taken() isn't currently able to
figure this out, so the verifier walks all branches. The verifier then
refines the register bounds using the second condition and we end
up with inconsistent bounds on this unreachable path:
1: if r0 == 0 goto <exit>
r0: u64=[0x1, 0xffffffffffffffff] var_off=(0, 0xffffffffffffffff)
2: if r0 & 0xffffffff goto <exit>
r0 before reg_bounds_sync: u64=[0x1, 0xffffffffffffffff] var_off=(0, 0)
r0 after reg_bounds_sync: u64=[0x1, 0] var_off=(0, 0)
Improving the range refinement for JSET to cover all cases is tricky. We
also don't expect many users to rely on JSET given LLVM doesn't generate
those instructions. So instead of improving the range refinement for
JSETs, Eduard suggested we forget the ranges whenever we're narrowing
tnums after a JSET. This patch implements that approach.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 960ea056561a08e2b837b2f02d22c53226414a84 Version: 960ea056561a08e2b837b2f02d22c53226414a84 Version: 960ea056561a08e2b837b2f02d22c53226414a84 Version: 960ea056561a08e2b837b2f02d22c53226414a84 Version: 960ea056561a08e2b837b2f02d22c53226414a84 Version: 960ea056561a08e2b837b2f02d22c53226414a84 Version: 960ea056561a08e2b837b2f02d22c53226414a84 Version: 960ea056561a08e2b837b2f02d22c53226414a84 |
||
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CVE-2026-31503 (GCVE-0-2026-31503)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
udp: Fix wildcard bind conflict check when using hash2
When binding a udp_sock to a local address and port, UDP uses
two hashes (udptable->hash and udptable->hash2) for collision
detection. The current code switches to "hash2" when
hslot->count > 10.
"hash2" is keyed by local address and local port.
"hash" is keyed by local port only.
The issue can be shown in the following bind sequence (pseudo code):
bind(fd1, "[fd00::1]:8888")
bind(fd2, "[fd00::2]:8888")
bind(fd3, "[fd00::3]:8888")
bind(fd4, "[fd00::4]:8888")
bind(fd5, "[fd00::5]:8888")
bind(fd6, "[fd00::6]:8888")
bind(fd7, "[fd00::7]:8888")
bind(fd8, "[fd00::8]:8888")
bind(fd9, "[fd00::9]:8888")
bind(fd10, "[fd00::10]:8888")
/* Correctly return -EADDRINUSE because "hash" is used
* instead of "hash2". udp_lib_lport_inuse() detects the
* conflict.
*/
bind(fail_fd, "[::]:8888")
/* After one more socket is bound to "[fd00::11]:8888",
* hslot->count exceeds 10 and "hash2" is used instead.
*/
bind(fd11, "[fd00::11]:8888")
bind(fail_fd, "[::]:8888") /* succeeds unexpectedly */
The same issue applies to the IPv4 wildcard address "0.0.0.0"
and the IPv4-mapped wildcard address "::ffff:0.0.0.0". For
example, if there are existing sockets bound to
"192.168.1.[1-11]:8888", then binding "0.0.0.0:8888" or
"[::ffff:0.0.0.0]:8888" can also miss the conflict when
hslot->count > 10.
TCP inet_csk_get_port() already has the correct check in
inet_use_bhash2_on_bind(). Rename it to
inet_use_hash2_on_bind() and move it to inet_hashtables.h
so udp.c can reuse it in this fix.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 30fff9231fad757c061285e347b33c5149c2c2e4 Version: 30fff9231fad757c061285e347b33c5149c2c2e4 Version: 30fff9231fad757c061285e347b33c5149c2c2e4 Version: 30fff9231fad757c061285e347b33c5149c2c2e4 Version: 30fff9231fad757c061285e347b33c5149c2c2e4 Version: 30fff9231fad757c061285e347b33c5149c2c2e4 |
||
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CVE-2026-31441 (GCVE-0-2026-31441)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Fix memory leak when a wq is reset
idxd_wq_disable_cleanup() which is called from the reset path for a
workqueue, sets the wq type to NONE, which for other parts of the
driver mean that the wq is empty (all its resources were released).
Only set the wq type to NONE after its resources are released.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: da32b28c95a79e399e18c03f8178f41aec9c66e4 Version: da32b28c95a79e399e18c03f8178f41aec9c66e4 Version: da32b28c95a79e399e18c03f8178f41aec9c66e4 Version: da32b28c95a79e399e18c03f8178f41aec9c66e4 Version: da32b28c95a79e399e18c03f8178f41aec9c66e4 Version: da32b28c95a79e399e18c03f8178f41aec9c66e4 Version: 2a2df2bd10de44c3804661ed15157817c12d6291 Version: 5.7.10 ≤ |
||
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CVE-2025-68773 (GCVE-0-2025-68773)
Vulnerability from cvelistv5
Published
2026-01-13 15:28
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: fsl-cpm: Check length parity before switching to 16 bit mode
Commit fc96ec826bce ("spi: fsl-cpm: Use 16 bit mode for large transfers
with even size") failed to make sure that the size is really even
before switching to 16 bit mode. Until recently the problem went
unnoticed because kernfs uses a pre-allocated bounce buffer of size
PAGE_SIZE for reading EEPROM.
But commit 8ad6249c51d0 ("eeprom: at25: convert to spi-mem API")
introduced an additional dynamically allocated bounce buffer whose size
is exactly the size of the transfer, leading to a buffer overrun in
the fsl-cpm driver when that size is odd.
Add the missing length parity verification and remain in 8 bit mode
when the length is not even.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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CVE-2026-23449 (GCVE-0-2026-23449)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: teql: Fix double-free in teql_master_xmit
Whenever a TEQL devices has a lockless Qdisc as root, qdisc_reset should
be called using the seq_lock to avoid racing with the datapath. Failure
to do so may cause crashes like the following:
[ 238.028993][ T318] BUG: KASAN: double-free in skb_release_data (net/core/skbuff.c:1139)
[ 238.029328][ T318] Free of addr ffff88810c67ec00 by task poc_teql_uaf_ke/318
[ 238.029749][ T318]
[ 238.029900][ T318] CPU: 3 UID: 0 PID: 318 Comm: poc_teql_ke Not tainted 7.0.0-rc3-00149-ge5b31d988a41 #704 PREEMPT(full)
[ 238.029906][ T318] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 238.029910][ T318] Call Trace:
[ 238.029913][ T318] <TASK>
[ 238.029916][ T318] dump_stack_lvl (lib/dump_stack.c:122)
[ 238.029928][ T318] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)
[ 238.029940][ T318] ? skb_release_data (net/core/skbuff.c:1139)
[ 238.029944][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
...
[ 238.029957][ T318] ? skb_release_data (net/core/skbuff.c:1139)
[ 238.029969][ T318] kasan_report_invalid_free (mm/kasan/report.c:221 mm/kasan/report.c:563)
[ 238.029979][ T318] ? skb_release_data (net/core/skbuff.c:1139)
[ 238.029989][ T318] check_slab_allocation (mm/kasan/common.c:231)
[ 238.029995][ T318] kmem_cache_free (mm/slub.c:2637 (discriminator 1) mm/slub.c:6168 (discriminator 1) mm/slub.c:6298 (discriminator 1))
[ 238.030004][ T318] skb_release_data (net/core/skbuff.c:1139)
...
[ 238.030025][ T318] sk_skb_reason_drop (net/core/skbuff.c:1256)
[ 238.030032][ T318] pfifo_fast_reset (./include/linux/ptr_ring.h:171 ./include/linux/ptr_ring.h:309 ./include/linux/skb_array.h:98 net/sched/sch_generic.c:827)
[ 238.030039][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
...
[ 238.030054][ T318] qdisc_reset (net/sched/sch_generic.c:1034)
[ 238.030062][ T318] teql_destroy (./include/linux/spinlock.h:395 net/sched/sch_teql.c:157)
[ 238.030071][ T318] __qdisc_destroy (./include/net/pkt_sched.h:328 net/sched/sch_generic.c:1077)
[ 238.030077][ T318] qdisc_graft (net/sched/sch_api.c:1062 net/sched/sch_api.c:1053 net/sched/sch_api.c:1159)
[ 238.030089][ T318] ? __pfx_qdisc_graft (net/sched/sch_api.c:1091)
[ 238.030095][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 238.030102][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 238.030106][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 238.030114][ T318] tc_get_qdisc (net/sched/sch_api.c:1529 net/sched/sch_api.c:1556)
...
[ 238.072958][ T318] Allocated by task 303 on cpu 5 at 238.026275s:
[ 238.073392][ T318] kasan_save_stack (mm/kasan/common.c:58)
[ 238.073884][ T318] kasan_save_track (mm/kasan/common.c:64 (discriminator 5) mm/kasan/common.c:79 (discriminator 5))
[ 238.074230][ T318] __kasan_slab_alloc (mm/kasan/common.c:369)
[ 238.074578][ T318] kmem_cache_alloc_node_noprof (./include/linux/kasan.h:253 mm/slub.c:4542 mm/slub.c:4869 mm/slub.c:4921)
[ 238.076091][ T318] kmalloc_reserve (net/core/skbuff.c:616 (discriminator 107))
[ 238.076450][ T318] __alloc_skb (net/core/skbuff.c:713)
[ 238.076834][ T318] alloc_skb_with_frags (./include/linux/skbuff.h:1383 net/core/skbuff.c:6763)
[ 238.077178][ T318] sock_alloc_send_pskb (net/core/sock.c:2997)
[ 238.077520][ T318] packet_sendmsg (net/packet/af_packet.c:2926 net/packet/af_packet.c:3019 net/packet/af_packet.c:3108)
[ 238.081469][ T318]
[ 238.081870][ T318] Freed by task 299 on cpu 1 at 238.028496s:
[ 238.082761][ T318] kasan_save_stack (mm/kasan/common.c:58)
[ 238.083481][ T318] kasan_save_track (mm/kasan/common.c:64 (discriminator 5) mm/kasan/common.c:79 (discriminator 5))
[ 238.085348][ T318] kasan_save_free_info (mm/kasan/generic.c:587 (discriminator 1))
[ 238.085900][ T318] __kasan_slab_free (mm/
---truncated---
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 96009c7d500efdd5534e83b2e3eb2c58d4b137ae Version: 96009c7d500efdd5534e83b2e3eb2c58d4b137ae Version: 96009c7d500efdd5534e83b2e3eb2c58d4b137ae Version: 96009c7d500efdd5534e83b2e3eb2c58d4b137ae Version: 96009c7d500efdd5534e83b2e3eb2c58d4b137ae Version: 96009c7d500efdd5534e83b2e3eb2c58d4b137ae |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: teql: Fix double-free in teql_master_xmit\n\nWhenever a TEQL devices has a lockless Qdisc as root, qdisc_reset should\nbe called using the seq_lock to avoid racing with the datapath. Failure\nto do so may cause crashes like the following:\n\n[ 238.028993][ T318] BUG: KASAN: double-free in skb_release_data (net/core/skbuff.c:1139)\n[ 238.029328][ T318] Free of addr ffff88810c67ec00 by task poc_teql_uaf_ke/318\n[ 238.029749][ T318]\n[ 238.029900][ T318] CPU: 3 UID: 0 PID: 318 Comm: poc_teql_ke Not tainted 7.0.0-rc3-00149-ge5b31d988a41 #704 PREEMPT(full)\n[ 238.029906][ T318] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n[ 238.029910][ T318] Call Trace:\n[ 238.029913][ T318] \u003cTASK\u003e\n[ 238.029916][ T318] dump_stack_lvl (lib/dump_stack.c:122)\n[ 238.029928][ T318] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)\n[ 238.029940][ T318] ? skb_release_data (net/core/skbuff.c:1139)\n[ 238.029944][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n...\n[ 238.029957][ T318] ? skb_release_data (net/core/skbuff.c:1139)\n[ 238.029969][ T318] kasan_report_invalid_free (mm/kasan/report.c:221 mm/kasan/report.c:563)\n[ 238.029979][ T318] ? skb_release_data (net/core/skbuff.c:1139)\n[ 238.029989][ T318] check_slab_allocation (mm/kasan/common.c:231)\n[ 238.029995][ T318] kmem_cache_free (mm/slub.c:2637 (discriminator 1) mm/slub.c:6168 (discriminator 1) mm/slub.c:6298 (discriminator 1))\n[ 238.030004][ T318] skb_release_data (net/core/skbuff.c:1139)\n...\n[ 238.030025][ T318] sk_skb_reason_drop (net/core/skbuff.c:1256)\n[ 238.030032][ T318] pfifo_fast_reset (./include/linux/ptr_ring.h:171 ./include/linux/ptr_ring.h:309 ./include/linux/skb_array.h:98 net/sched/sch_generic.c:827)\n[ 238.030039][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n...\n[ 238.030054][ T318] qdisc_reset (net/sched/sch_generic.c:1034)\n[ 238.030062][ T318] teql_destroy (./include/linux/spinlock.h:395 net/sched/sch_teql.c:157)\n[ 238.030071][ T318] __qdisc_destroy (./include/net/pkt_sched.h:328 net/sched/sch_generic.c:1077)\n[ 238.030077][ T318] qdisc_graft (net/sched/sch_api.c:1062 net/sched/sch_api.c:1053 net/sched/sch_api.c:1159)\n[ 238.030089][ T318] ? __pfx_qdisc_graft (net/sched/sch_api.c:1091)\n[ 238.030095][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 238.030102][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 238.030106][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 238.030114][ T318] tc_get_qdisc (net/sched/sch_api.c:1529 net/sched/sch_api.c:1556)\n...\n[ 238.072958][ T318] Allocated by task 303 on cpu 5 at 238.026275s:\n[ 238.073392][ T318] kasan_save_stack (mm/kasan/common.c:58)\n[ 238.073884][ T318] kasan_save_track (mm/kasan/common.c:64 (discriminator 5) mm/kasan/common.c:79 (discriminator 5))\n[ 238.074230][ T318] __kasan_slab_alloc (mm/kasan/common.c:369)\n[ 238.074578][ T318] kmem_cache_alloc_node_noprof (./include/linux/kasan.h:253 mm/slub.c:4542 mm/slub.c:4869 mm/slub.c:4921)\n[ 238.076091][ T318] kmalloc_reserve (net/core/skbuff.c:616 (discriminator 107))\n[ 238.076450][ T318] __alloc_skb (net/core/skbuff.c:713)\n[ 238.076834][ T318] alloc_skb_with_frags (./include/linux/skbuff.h:1383 net/core/skbuff.c:6763)\n[ 238.077178][ T318] sock_alloc_send_pskb (net/core/sock.c:2997)\n[ 238.077520][ T318] packet_sendmsg (net/packet/af_packet.c:2926 net/packet/af_packet.c:3019 net/packet/af_packet.c:3108)\n[ 238.081469][ T318]\n[ 238.081870][ T318] Freed by task 299 on cpu 1 at 238.028496s:\n[ 238.082761][ T318] kasan_save_stack (mm/kasan/common.c:58)\n[ 238.083481][ T318] kasan_save_track (mm/kasan/common.c:64 (discriminator 5) mm/kasan/common.c:79 (discriminator 5))\n[ 238.085348][ T318] kasan_save_free_info (mm/kasan/generic.c:587 (discriminator 1))\n[ 238.085900][ T318] __kasan_slab_free (mm/\n---truncated---"
}
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CVE-2026-23335 (GCVE-0-2026-23335)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()
struct irdma_create_ah_resp { // 8 bytes, no padding
__u32 ah_id; // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx)
__u8 rsvd[4]; // offset 4 - NEVER SET <- LEAK
};
rsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata().
The reserved members of the structure were not zeroed.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b48c24c2d710cf34810c555dcef883a3d35a9c08 Version: b48c24c2d710cf34810c555dcef883a3d35a9c08 Version: b48c24c2d710cf34810c555dcef883a3d35a9c08 Version: b48c24c2d710cf34810c555dcef883a3d35a9c08 Version: b48c24c2d710cf34810c555dcef883a3d35a9c08 Version: b48c24c2d710cf34810c555dcef883a3d35a9c08 Version: b48c24c2d710cf34810c555dcef883a3d35a9c08 |
||
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CVE-2025-22005 (GCVE-0-2025-22005)
Vulnerability from cvelistv5
Published
2025-04-03 07:19
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().
fib_check_nh_v6_gw() expects that fib6_nh_init() cleans up everything
when it fails.
Commit 7dd73168e273 ("ipv6: Always allocate pcpu memory in a fib6_nh")
moved fib_nh_common_init() before alloc_percpu_gfp() within fib6_nh_init()
but forgot to add cleanup for fib6_nh->nh_common.nhc_pcpu_rth_output in
case it fails to allocate fib6_nh->rt6i_pcpu, resulting in memleak.
Let's call fib_nh_common_release() and clear nhc_pcpu_rth_output in the
error path.
Note that we can remove the fib6_nh_release() call in nh_create_ipv6()
later in net-next.git.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b Version: 7dd73168e273938b9e9bb42ca51b0c27d807992b |
||
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CVE-2023-52927 (GCVE-0-2023-52927)
Vulnerability from cvelistv5
Published
2025-03-14 14:25
Modified
2026-08-05 09:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: allow exp not to be removed in nf_ct_find_expectation
Currently nf_conntrack_in() calling nf_ct_find_expectation() will
remove the exp from the hash table. However, in some scenario, we
expect the exp not to be removed when the created ct will not be
confirmed, like in OVS and TC conntrack in the following patches.
This patch allows exp not to be removed by setting IPS_CONFIRMED
in the status of the tmpl.
References
Impacted products
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CVE-2026-31418 (GCVE-0-2026-31418)
Vulnerability from cvelistv5
Published
2026-04-13 13:21
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ipset: drop logically empty buckets in mtype_del
mtype_del() counts empty slots below n->pos in k, but it only drops the
bucket when both n->pos and k are zero. This misses buckets whose live
entries have all been removed while n->pos still points past deleted slots.
Treat a bucket as empty when all positions below n->pos are unused and
release it directly instead of shrinking it further.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 Version: 6c717726f341fd8f39a3ec2dcf5d98d9d28a2769 Version: d2997d64dfa65082236bca1efd596b6c935daf5e Version: 5.4.24 ≤ Version: 5.5.8 ≤ |
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CVE-2025-21655 (GCVE-0-2025-21655)
Vulnerability from cvelistv5
Published
2025-01-20 13:48
Modified
2026-08-05 11:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period
io_eventfd_do_signal() is invoked from an RCU callback, but when
dropping the reference to the io_ev_fd, it calls io_eventfd_free()
directly if the refcount drops to zero. This isn't correct, as any
potential freeing of the io_ev_fd should be deferred another RCU grace
period.
Just call io_eventfd_put() rather than open-code the dec-and-test and
free, which will correctly defer it another RCU grace period.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-40219 (GCVE-0-2025-40219)
Vulnerability from cvelistv5
Published
2025-12-04 14:50
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
PCI/IOV: Fix race between SR-IOV enable/disable and hotplug
Commit 05703271c3cd ("PCI/IOV: Add PCI rescan-remove locking when
enabling/disabling SR-IOV") tried to fix a race between the VF removal
inside sriov_del_vfs() and concurrent hot unplug by taking the PCI
rescan/remove lock in sriov_del_vfs(). Similarly the PCI rescan/remove lock
was also taken in sriov_add_vfs() to protect addition of VFs.
This approach however causes deadlock on trying to remove PFs with SR-IOV
enabled because PFs disable SR-IOV during removal and this removal happens
under the PCI rescan/remove lock. So the original fix had to be reverted.
Instead of taking the PCI rescan/remove lock in sriov_add_vfs() and
sriov_del_vfs(), fix the race that occurs with SR-IOV enable and disable vs
hotplug higher up in the callchain by taking the lock in
sriov_numvfs_store() before calling into the driver's sriov_configure()
callback.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 Version: 18f9e9d150fccfa747875df6f0a9f606740762b3 |
||
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CVE-2025-68742 (GCVE-0-2025-68742)
Vulnerability from cvelistv5
Published
2025-12-24 12:09
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix invalid prog->stats access when update_effective_progs fails
Syzkaller triggers an invalid memory access issue following fault
injection in update_effective_progs. The issue can be described as
follows:
__cgroup_bpf_detach
update_effective_progs
compute_effective_progs
bpf_prog_array_alloc <-- fault inject
purge_effective_progs
/* change to dummy_bpf_prog */
array->items[index] = &dummy_bpf_prog.prog
---softirq start---
__do_softirq
...
__cgroup_bpf_run_filter_skb
__bpf_prog_run_save_cb
bpf_prog_run
stats = this_cpu_ptr(prog->stats)
/* invalid memory access */
flags = u64_stats_update_begin_irqsave(&stats->syncp)
---softirq end---
static_branch_dec(&cgroup_bpf_enabled_key[atype])
The reason is that fault injection caused update_effective_progs to fail
and then changed the original prog into dummy_bpf_prog.prog in
purge_effective_progs. Then a softirq came, and accessing the members of
dummy_bpf_prog.prog in the softirq triggers invalid mem access.
To fix it, skip updating stats when stats is NULL.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 492ecee892c2a4ba6a14903d5d586ff750b7e805 Version: 492ecee892c2a4ba6a14903d5d586ff750b7e805 Version: 492ecee892c2a4ba6a14903d5d586ff750b7e805 Version: 492ecee892c2a4ba6a14903d5d586ff750b7e805 Version: 492ecee892c2a4ba6a14903d5d586ff750b7e805 Version: 492ecee892c2a4ba6a14903d5d586ff750b7e805 |
||
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CVE-2026-23438 (GCVE-0-2026-23438)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: mvpp2: guard flow control update with global_tx_fc in buffer switching
mvpp2_bm_switch_buffers() unconditionally calls
mvpp2_bm_pool_update_priv_fc() when switching between per-cpu and
shared buffer pool modes. This function programs CM3 flow control
registers via mvpp2_cm3_read()/mvpp2_cm3_write(), which dereference
priv->cm3_base without any NULL check.
When the CM3 SRAM resource is not present in the device tree (the
third reg entry added by commit 60523583b07c ("dts: marvell: add CM3
SRAM memory to cp11x ethernet device tree")), priv->cm3_base remains
NULL and priv->global_tx_fc is false. Any operation that triggers
mvpp2_bm_switch_buffers(), for example an MTU change that crosses
the jumbo frame threshold, will crash:
Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000000
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
pc : readl+0x0/0x18
lr : mvpp2_cm3_read.isra.0+0x14/0x20
Call trace:
readl+0x0/0x18
mvpp2_bm_pool_update_fc+0x40/0x12c
mvpp2_bm_pool_update_priv_fc+0x94/0xd8
mvpp2_bm_switch_buffers.isra.0+0x80/0x1c0
mvpp2_change_mtu+0x140/0x380
__dev_set_mtu+0x1c/0x38
dev_set_mtu_ext+0x78/0x118
dev_set_mtu+0x48/0xa8
dev_ifsioc+0x21c/0x43c
dev_ioctl+0x2d8/0x42c
sock_ioctl+0x314/0x378
Every other flow control call site in the driver already guards
hardware access with either priv->global_tx_fc or port->tx_fc.
mvpp2_bm_switch_buffers() is the only place that omits this check.
Add the missing priv->global_tx_fc guard to both the disable and
re-enable calls in mvpp2_bm_switch_buffers(), consistent with the
rest of the driver.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3a616b92a9d17448d96a33bf58e69f01457fd43a Version: 3a616b92a9d17448d96a33bf58e69f01457fd43a Version: 3a616b92a9d17448d96a33bf58e69f01457fd43a Version: 3a616b92a9d17448d96a33bf58e69f01457fd43a Version: 3a616b92a9d17448d96a33bf58e69f01457fd43a Version: 3a616b92a9d17448d96a33bf58e69f01457fd43a Version: 3a616b92a9d17448d96a33bf58e69f01457fd43a |
||
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CVE-2026-31396 (GCVE-0-2026-31396)
Vulnerability from cvelistv5
Published
2026-04-03 15:16
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: macb: fix use-after-free access to PTP clock
PTP clock is registered on every opening of the interface and destroyed on
every closing. However it may be accessed via get_ts_info ethtool call
which is possible while the interface is just present in the kernel.
BUG: KASAN: use-after-free in ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426
Read of size 4 at addr ffff8880194345cc by task syz.0.6/948
CPU: 1 PID: 948 Comm: syz.0.6 Not tainted 6.1.164+ #109
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x8d/0xba lib/dump_stack.c:106
print_address_description mm/kasan/report.c:316 [inline]
print_report+0x17f/0x496 mm/kasan/report.c:420
kasan_report+0xd9/0x180 mm/kasan/report.c:524
ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426
gem_get_ts_info+0x138/0x1e0 drivers/net/ethernet/cadence/macb_main.c:3349
macb_get_ts_info+0x68/0xb0 drivers/net/ethernet/cadence/macb_main.c:3371
__ethtool_get_ts_info+0x17c/0x260 net/ethtool/common.c:558
ethtool_get_ts_info net/ethtool/ioctl.c:2367 [inline]
__dev_ethtool net/ethtool/ioctl.c:3017 [inline]
dev_ethtool+0x2b05/0x6290 net/ethtool/ioctl.c:3095
dev_ioctl+0x637/0x1070 net/core/dev_ioctl.c:510
sock_do_ioctl+0x20d/0x2c0 net/socket.c:1215
sock_ioctl+0x577/0x6d0 net/socket.c:1320
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x18c/0x210 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
</TASK>
Allocated by task 457:
kmalloc include/linux/slab.h:563 [inline]
kzalloc include/linux/slab.h:699 [inline]
ptp_clock_register+0x144/0x10e0 drivers/ptp/ptp_clock.c:235
gem_ptp_init+0x46f/0x930 drivers/net/ethernet/cadence/macb_ptp.c:375
macb_open+0x901/0xd10 drivers/net/ethernet/cadence/macb_main.c:2920
__dev_open+0x2ce/0x500 net/core/dev.c:1501
__dev_change_flags+0x56a/0x740 net/core/dev.c:8651
dev_change_flags+0x92/0x170 net/core/dev.c:8722
do_setlink+0xaf8/0x3a80 net/core/rtnetlink.c:2833
__rtnl_newlink+0xbf4/0x1940 net/core/rtnetlink.c:3608
rtnl_newlink+0x63/0xa0 net/core/rtnetlink.c:3655
rtnetlink_rcv_msg+0x3c6/0xed0 net/core/rtnetlink.c:6150
netlink_rcv_skb+0x15d/0x430 net/netlink/af_netlink.c:2511
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x6d7/0xa30 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x97e/0xeb0 net/netlink/af_netlink.c:1872
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg+0x14b/0x180 net/socket.c:730
__sys_sendto+0x320/0x3b0 net/socket.c:2152
__do_sys_sendto net/socket.c:2164 [inline]
__se_sys_sendto net/socket.c:2160 [inline]
__x64_sys_sendto+0xdc/0x1b0 net/socket.c:2160
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Freed by task 938:
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1729 [inline]
slab_free_freelist_hook mm/slub.c:1755 [inline]
slab_free mm/slub.c:3687 [inline]
__kmem_cache_free+0xbc/0x320 mm/slub.c:3700
device_release+0xa0/0x240 drivers/base/core.c:2507
kobject_cleanup lib/kobject.c:681 [inline]
kobject_release lib/kobject.c:712 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1cd/0x350 lib/kobject.c:729
put_device+0x1b/0x30 drivers/base/core.c:3805
ptp_clock_unregister+0x171/0x270 drivers/ptp/ptp_clock.c:391
gem_ptp_remove+0x4e/0x1f0 drivers/net/ethernet/cadence/macb_ptp.c:404
macb_close+0x1c8/0x270 drivers/net/ethernet/cadence/macb_main.c:2966
__dev_close_many+0x1b9/0x310 net/core/dev.c:1585
__dev_close net/core/dev.c:1597 [inline]
__dev_change_flags+0x2bb/0x740 net/core/dev.c:8649
dev_change_fl
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c2594d804d5c8033861d44840673d852d98508c1 Version: c2594d804d5c8033861d44840673d852d98508c1 Version: c2594d804d5c8033861d44840673d852d98508c1 Version: c2594d804d5c8033861d44840673d852d98508c1 Version: c2594d804d5c8033861d44840673d852d98508c1 Version: c2594d804d5c8033861d44840673d852d98508c1 Version: c2594d804d5c8033861d44840673d852d98508c1 Version: c2594d804d5c8033861d44840673d852d98508c1 |
||
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"versions": [
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},
{
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"version": "0",
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{
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},
{
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"version": "5.15.203",
"versionType": "semver"
},
{
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"version": "6.1.167",
"versionType": "semver"
},
{
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},
{
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"status": "unaffected",
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{
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"version": "6.19.10",
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},
{
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}
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"cpeApplicability": [
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"nodes": [
{
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: fix use-after-free access to PTP clock\n\nPTP clock is registered on every opening of the interface and destroyed on\nevery closing. However it may be accessed via get_ts_info ethtool call\nwhich is possible while the interface is just present in the kernel.\n\nBUG: KASAN: use-after-free in ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426\nRead of size 4 at addr ffff8880194345cc by task syz.0.6/948\n\nCPU: 1 PID: 948 Comm: syz.0.6 Not tainted 6.1.164+ #109\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x8d/0xba lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:316 [inline]\n print_report+0x17f/0x496 mm/kasan/report.c:420\n kasan_report+0xd9/0x180 mm/kasan/report.c:524\n ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426\n gem_get_ts_info+0x138/0x1e0 drivers/net/ethernet/cadence/macb_main.c:3349\n macb_get_ts_info+0x68/0xb0 drivers/net/ethernet/cadence/macb_main.c:3371\n __ethtool_get_ts_info+0x17c/0x260 net/ethtool/common.c:558\n ethtool_get_ts_info net/ethtool/ioctl.c:2367 [inline]\n __dev_ethtool net/ethtool/ioctl.c:3017 [inline]\n dev_ethtool+0x2b05/0x6290 net/ethtool/ioctl.c:3095\n dev_ioctl+0x637/0x1070 net/core/dev_ioctl.c:510\n sock_do_ioctl+0x20d/0x2c0 net/socket.c:1215\n sock_ioctl+0x577/0x6d0 net/socket.c:1320\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:870 [inline]\n __se_sys_ioctl fs/ioctl.c:856 [inline]\n __x64_sys_ioctl+0x18c/0x210 fs/ioctl.c:856\n do_syscall_x64 arch/x86/entry/common.c:46 [inline]\n do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n \u003c/TASK\u003e\n\nAllocated by task 457:\n kmalloc include/linux/slab.h:563 [inline]\n kzalloc include/linux/slab.h:699 [inline]\n ptp_clock_register+0x144/0x10e0 drivers/ptp/ptp_clock.c:235\n gem_ptp_init+0x46f/0x930 drivers/net/ethernet/cadence/macb_ptp.c:375\n macb_open+0x901/0xd10 drivers/net/ethernet/cadence/macb_main.c:2920\n __dev_open+0x2ce/0x500 net/core/dev.c:1501\n __dev_change_flags+0x56a/0x740 net/core/dev.c:8651\n dev_change_flags+0x92/0x170 net/core/dev.c:8722\n do_setlink+0xaf8/0x3a80 net/core/rtnetlink.c:2833\n __rtnl_newlink+0xbf4/0x1940 net/core/rtnetlink.c:3608\n rtnl_newlink+0x63/0xa0 net/core/rtnetlink.c:3655\n rtnetlink_rcv_msg+0x3c6/0xed0 net/core/rtnetlink.c:6150\n netlink_rcv_skb+0x15d/0x430 net/netlink/af_netlink.c:2511\n netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]\n netlink_unicast+0x6d7/0xa30 net/netlink/af_netlink.c:1344\n netlink_sendmsg+0x97e/0xeb0 net/netlink/af_netlink.c:1872\n sock_sendmsg_nosec net/socket.c:718 [inline]\n __sock_sendmsg+0x14b/0x180 net/socket.c:730\n __sys_sendto+0x320/0x3b0 net/socket.c:2152\n __do_sys_sendto net/socket.c:2164 [inline]\n __se_sys_sendto net/socket.c:2160 [inline]\n __x64_sys_sendto+0xdc/0x1b0 net/socket.c:2160\n do_syscall_x64 arch/x86/entry/common.c:46 [inline]\n do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nFreed by task 938:\n kasan_slab_free include/linux/kasan.h:177 [inline]\n slab_free_hook mm/slub.c:1729 [inline]\n slab_free_freelist_hook mm/slub.c:1755 [inline]\n slab_free mm/slub.c:3687 [inline]\n __kmem_cache_free+0xbc/0x320 mm/slub.c:3700\n device_release+0xa0/0x240 drivers/base/core.c:2507\n kobject_cleanup lib/kobject.c:681 [inline]\n kobject_release lib/kobject.c:712 [inline]\n kref_put include/linux/kref.h:65 [inline]\n kobject_put+0x1cd/0x350 lib/kobject.c:729\n put_device+0x1b/0x30 drivers/base/core.c:3805\n ptp_clock_unregister+0x171/0x270 drivers/ptp/ptp_clock.c:391\n gem_ptp_remove+0x4e/0x1f0 drivers/net/ethernet/cadence/macb_ptp.c:404\n macb_close+0x1c8/0x270 drivers/net/ethernet/cadence/macb_main.c:2966\n __dev_close_many+0x1b9/0x310 net/core/dev.c:1585\n __dev_close net/core/dev.c:1597 [inline]\n __dev_change_flags+0x2bb/0x740 net/core/dev.c:8649\n dev_change_fl\n---truncated---"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable dereference is reached through local ethtool timestamp-info requests, not through received Ethernet/PTP packets. Network traffic alone does not enter gem_get_ts_info().\nAC:L - No attacker-uncontrolled race is required; once interface open/close leaves a stale PTP clock pointer, a timestamp-info query deterministically dereferences it. The trigger can be repeated while the stale pointer remains.\nPR:L - A basic local user can issue the ETHTOOL_GET_TS_INFO query path, which ethtool explicitly allows without CAP_NET_ADMIN. Interface cycling is privileged, but the stale state can exist after normal system management, so the higher-severity defensible choice is PR:L.\nUI:N - No victim action is required after the affected macb/GEM interface exists in the vulnerable state. The attacker invokes the local query directly.\nS:U - The bug is in a kernel network driver and impacts the same kernel security authority. It is not a guest-to-host, IOMMU, or other cross-scope boundary bypass.\nC:H - This is a kernel heap use-after-free of struct ptp_clock reached through a stale driver pointer. Under the kernel scoring guidance, UAFs are treated as high confidentiality impact because freed object reuse can enable memory disclosure primitives.\nI:H - Although the observed crash path is a stale read of the PTP clock index, the underlying bug is a kernel heap UAF. Under the required kernel guidance, UAFs are scored as high integrity impact because heap reuse can be leveraged toward control-flow or write primitives.\nA:H - The reported KASAN trace shows a use-after-free in ptp_clock_index(), and such kernel UAFs can cause oops/panic or repeated system crashes. Availability impact is therefore high."
}
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},
{
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"title": "net: macb: fix use-after-free access to PTP clock",
"x_generator": {
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"cveId": "CVE-2026-31396",
"datePublished": "2026-04-03T15:16:00.579Z",
"dateReserved": "2026-03-09T15:48:24.085Z",
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"state": "PUBLISHED"
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}
CVE-2025-39795 (GCVE-0-2025-39795)
Vulnerability from cvelistv5
Published
2025-09-12 15:59
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
block: avoid possible overflow for chunk_sectors check in blk_stack_limits()
In blk_stack_limits(), we check that the t->chunk_sectors value is a
multiple of the t->physical_block_size value.
However, by finding the chunk_sectors value in bytes, we may overflow
the unsigned int which holds chunk_sectors, so change the check to be
based on sectors.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 22ada802ede89829dd010a317d9b812b7df7111a Version: 22ada802ede89829dd010a317d9b812b7df7111a Version: 22ada802ede89829dd010a317d9b812b7df7111a Version: 22ada802ede89829dd010a317d9b812b7df7111a Version: 22ada802ede89829dd010a317d9b812b7df7111a Version: 22ada802ede89829dd010a317d9b812b7df7111a Version: 22ada802ede89829dd010a317d9b812b7df7111a Version: 22ada802ede89829dd010a317d9b812b7df7111a |
||
{
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},
{
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}
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"title": "CVE Program Container"
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CVE-2025-38736 (GCVE-0-2025-38736)
Vulnerability from cvelistv5
Published
2025-09-05 17:20
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization
Syzbot reported shift-out-of-bounds exception on MDIO bus initialization.
The PHY address should be masked to 5 bits (0-31). Without this
mask, invalid PHY addresses could be used, potentially causing issues
with MDIO bus operations.
Fix this by masking the PHY address with 0x1f (31 decimal) to ensure
it stays within the valid range.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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CVE-2026-31423 (GCVE-0-2026-31423)
Vulnerability from cvelistv5
Published
2026-04-13 13:40
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: sch_hfsc: fix divide-by-zero in rtsc_min()
m2sm() converts a u32 slope to a u64 scaled value. For large inputs
(e.g. m1=4000000000), the result can reach 2^32. rtsc_min() stores
the difference of two such u64 values in a u32 variable `dsm` and
uses it as a divisor. When the difference is exactly 2^32 the
truncation yields zero, causing a divide-by-zero oops in the
concave-curve intersection path:
Oops: divide error: 0000
RIP: 0010:rtsc_min (net/sched/sch_hfsc.c:601)
Call Trace:
init_ed (net/sched/sch_hfsc.c:629)
hfsc_enqueue (net/sched/sch_hfsc.c:1569)
[...]
Widen `dsm` to u64 and replace do_div() with div64_u64() so the full
difference is preserved.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
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CVE-2026-31507 (GCVE-0-2026-31507)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-08-05 12:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer
smc_rx_splice() allocates one smc_spd_priv per pipe_buffer and stores
the pointer in pipe_buffer.private. The pipe_buf_operations for these
buffers used .get = generic_pipe_buf_get, which only increments the page
reference count when tee(2) duplicates a pipe buffer. The smc_spd_priv
pointer itself was not handled, so after tee() both the original and the
cloned pipe_buffer share the same smc_spd_priv *.
When both pipes are subsequently released, smc_rx_pipe_buf_release() is
called twice against the same object:
1st call: kfree(priv) sock_put(sk) smc_rx_update_cons() [correct]
2nd call: kfree(priv) sock_put(sk) smc_rx_update_cons() [UAF]
KASAN reports a slab-use-after-free in smc_rx_pipe_buf_release(), which
then escalates to a NULL-pointer dereference and kernel panic via
smc_rx_update_consumer() when it chases the freed priv->smc pointer:
BUG: KASAN: slab-use-after-free in smc_rx_pipe_buf_release+0x78/0x2a0
Read of size 8 at addr ffff888004a45740 by task smc_splice_tee_/74
Call Trace:
<TASK>
dump_stack_lvl+0x53/0x70
print_report+0xce/0x650
kasan_report+0xc6/0x100
smc_rx_pipe_buf_release+0x78/0x2a0
free_pipe_info+0xd4/0x130
pipe_release+0x142/0x160
__fput+0x1c6/0x490
__x64_sys_close+0x4f/0x90
do_syscall_64+0xa6/0x1a0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
</TASK>
BUG: kernel NULL pointer dereference, address: 0000000000000020
RIP: 0010:smc_rx_update_consumer+0x8d/0x350
Call Trace:
<TASK>
smc_rx_pipe_buf_release+0x121/0x2a0
free_pipe_info+0xd4/0x130
pipe_release+0x142/0x160
__fput+0x1c6/0x490
__x64_sys_close+0x4f/0x90
do_syscall_64+0xa6/0x1a0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
</TASK>
Kernel panic - not syncing: Fatal exception
Beyond the memory-safety problem, duplicating an SMC splice buffer is
semantically questionable: smc_rx_update_cons() would advance the
consumer cursor twice for the same data, corrupting receive-window
accounting. A refcount on smc_spd_priv could fix the double-free, but
the cursor-accounting issue would still need to be addressed separately.
The .get callback is invoked by both tee(2) and splice_pipe_to_pipe()
for partial transfers; both will now return -EFAULT. Users who need
to duplicate SMC socket data must use a copy-based read path.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f Version: 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer\n\nsmc_rx_splice() allocates one smc_spd_priv per pipe_buffer and stores\nthe pointer in pipe_buffer.private. The pipe_buf_operations for these\nbuffers used .get = generic_pipe_buf_get, which only increments the page\nreference count when tee(2) duplicates a pipe buffer. The smc_spd_priv\npointer itself was not handled, so after tee() both the original and the\ncloned pipe_buffer share the same smc_spd_priv *.\n\nWhen both pipes are subsequently released, smc_rx_pipe_buf_release() is\ncalled twice against the same object:\n\n 1st call: kfree(priv) sock_put(sk) smc_rx_update_cons() [correct]\n 2nd call: kfree(priv) sock_put(sk) smc_rx_update_cons() [UAF]\n\nKASAN reports a slab-use-after-free in smc_rx_pipe_buf_release(), which\nthen escalates to a NULL-pointer dereference and kernel panic via\nsmc_rx_update_consumer() when it chases the freed priv-\u003esmc pointer:\n\n BUG: KASAN: slab-use-after-free in smc_rx_pipe_buf_release+0x78/0x2a0\n Read of size 8 at addr ffff888004a45740 by task smc_splice_tee_/74\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x53/0x70\n print_report+0xce/0x650\n kasan_report+0xc6/0x100\n smc_rx_pipe_buf_release+0x78/0x2a0\n free_pipe_info+0xd4/0x130\n pipe_release+0x142/0x160\n __fput+0x1c6/0x490\n __x64_sys_close+0x4f/0x90\n do_syscall_64+0xa6/0x1a0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n \u003c/TASK\u003e\n\n BUG: kernel NULL pointer dereference, address: 0000000000000020\n RIP: 0010:smc_rx_update_consumer+0x8d/0x350\n Call Trace:\n \u003cTASK\u003e\n smc_rx_pipe_buf_release+0x121/0x2a0\n free_pipe_info+0xd4/0x130\n pipe_release+0x142/0x160\n __fput+0x1c6/0x490\n __x64_sys_close+0x4f/0x90\n do_syscall_64+0xa6/0x1a0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n \u003c/TASK\u003e\n Kernel panic - not syncing: Fatal exception\n\nBeyond the memory-safety problem, duplicating an SMC splice buffer is\nsemantically questionable: smc_rx_update_cons() would advance the\nconsumer cursor twice for the same data, corrupting receive-window\naccounting. A refcount on smc_spd_priv could fix the double-free, but\nthe cursor-accounting issue would still need to be addressed separately.\n\nThe .get callback is invoked by both tee(2) and splice_pipe_to_pipe()\nfor partial transfers; both will now return -EFAULT. Users who need\nto duplicate SMC socket data must use a copy-based read path."
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CVE-2025-22056 (GCVE-0-2025-22056)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-08-05 11:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_tunnel: fix geneve_opt type confusion addition
When handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the
parsing logic should place every geneve_opt structure one by one
compactly. Hence, when deciding the next geneve_opt position, the
pointer addition should be in units of char *.
However, the current implementation erroneously does type conversion
before the addition, which will lead to heap out-of-bounds write.
[ 6.989857] ==================================================================
[ 6.990293] BUG: KASAN: slab-out-of-bounds in nft_tunnel_obj_init+0x977/0xa70
[ 6.990725] Write of size 124 at addr ffff888005f18974 by task poc/178
[ 6.991162]
[ 6.991259] CPU: 0 PID: 178 Comm: poc-oob-write Not tainted 6.1.132 #1
[ 6.991655] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[ 6.992281] Call Trace:
[ 6.992423] <TASK>
[ 6.992586] dump_stack_lvl+0x44/0x5c
[ 6.992801] print_report+0x184/0x4be
[ 6.993790] kasan_report+0xc5/0x100
[ 6.994252] kasan_check_range+0xf3/0x1a0
[ 6.994486] memcpy+0x38/0x60
[ 6.994692] nft_tunnel_obj_init+0x977/0xa70
[ 6.995677] nft_obj_init+0x10c/0x1b0
[ 6.995891] nf_tables_newobj+0x585/0x950
[ 6.996922] nfnetlink_rcv_batch+0xdf9/0x1020
[ 6.998997] nfnetlink_rcv+0x1df/0x220
[ 6.999537] netlink_unicast+0x395/0x530
[ 7.000771] netlink_sendmsg+0x3d0/0x6d0
[ 7.001462] __sock_sendmsg+0x99/0xa0
[ 7.001707] ____sys_sendmsg+0x409/0x450
[ 7.002391] ___sys_sendmsg+0xfd/0x170
[ 7.003145] __sys_sendmsg+0xea/0x170
[ 7.004359] do_syscall_64+0x5e/0x90
[ 7.005817] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 7.006127] RIP: 0033:0x7ec756d4e407
[ 7.006339] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf
[ 7.007364] RSP: 002b:00007ffed5d46760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[ 7.007827] RAX: ffffffffffffffda RBX: 00007ec756cc4740 RCX: 00007ec756d4e407
[ 7.008223] RDX: 0000000000000000 RSI: 00007ffed5d467f0 RDI: 0000000000000003
[ 7.008620] RBP: 00007ffed5d468a0 R08: 0000000000000000 R09: 0000000000000000
[ 7.009039] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
[ 7.009429] R13: 00007ffed5d478b0 R14: 00007ec756ee5000 R15: 00005cbd4e655cb8
Fix this bug with correct pointer addition and conversion in parse
and dump code.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 925d844696d9287f841d6b3e0ed62a35fb175970 Version: 925d844696d9287f841d6b3e0ed62a35fb175970 Version: 925d844696d9287f841d6b3e0ed62a35fb175970 Version: 925d844696d9287f841d6b3e0ed62a35fb175970 Version: 925d844696d9287f841d6b3e0ed62a35fb175970 Version: 925d844696d9287f841d6b3e0ed62a35fb175970 Version: 925d844696d9287f841d6b3e0ed62a35fb175970 Version: 925d844696d9287f841d6b3e0ed62a35fb175970 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_tunnel: fix geneve_opt type confusion addition\n\nWhen handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the\nparsing logic should place every geneve_opt structure one by one\ncompactly. Hence, when deciding the next geneve_opt position, the\npointer addition should be in units of char *.\n\nHowever, the current implementation erroneously does type conversion\nbefore the addition, which will lead to heap out-of-bounds write.\n\n[ 6.989857] ==================================================================\n[ 6.990293] BUG: KASAN: slab-out-of-bounds in nft_tunnel_obj_init+0x977/0xa70\n[ 6.990725] Write of size 124 at addr ffff888005f18974 by task poc/178\n[ 6.991162]\n[ 6.991259] CPU: 0 PID: 178 Comm: poc-oob-write Not tainted 6.1.132 #1\n[ 6.991655] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n[ 6.992281] Call Trace:\n[ 6.992423] \u003cTASK\u003e\n[ 6.992586] dump_stack_lvl+0x44/0x5c\n[ 6.992801] print_report+0x184/0x4be\n[ 6.993790] kasan_report+0xc5/0x100\n[ 6.994252] kasan_check_range+0xf3/0x1a0\n[ 6.994486] memcpy+0x38/0x60\n[ 6.994692] nft_tunnel_obj_init+0x977/0xa70\n[ 6.995677] nft_obj_init+0x10c/0x1b0\n[ 6.995891] nf_tables_newobj+0x585/0x950\n[ 6.996922] nfnetlink_rcv_batch+0xdf9/0x1020\n[ 6.998997] nfnetlink_rcv+0x1df/0x220\n[ 6.999537] netlink_unicast+0x395/0x530\n[ 7.000771] netlink_sendmsg+0x3d0/0x6d0\n[ 7.001462] __sock_sendmsg+0x99/0xa0\n[ 7.001707] ____sys_sendmsg+0x409/0x450\n[ 7.002391] ___sys_sendmsg+0xfd/0x170\n[ 7.003145] __sys_sendmsg+0xea/0x170\n[ 7.004359] do_syscall_64+0x5e/0x90\n[ 7.005817] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[ 7.006127] RIP: 0033:0x7ec756d4e407\n[ 7.006339] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 \u003c5b\u003e c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf\n[ 7.007364] RSP: 002b:00007ffed5d46760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e\n[ 7.007827] RAX: ffffffffffffffda RBX: 00007ec756cc4740 RCX: 00007ec756d4e407\n[ 7.008223] RDX: 0000000000000000 RSI: 00007ffed5d467f0 RDI: 0000000000000003\n[ 7.008620] RBP: 00007ffed5d468a0 R08: 0000000000000000 R09: 0000000000000000\n[ 7.009039] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000\n[ 7.009429] R13: 00007ffed5d478b0 R14: 00007ec756ee5000 R15: 00005cbd4e655cb8\n\nFix this bug with correct pointer addition and conversion in parse\nand dump code."
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"value": "AV:L - The vulnerability is reached by sending an NFT_MSG_NEWOBJ message on a NETLINK_NETFILTER socket, which requires local access to the system. Per kernel scoring guidance, netfilter/nftables netlink configuration paths are Local.\nAC:L - The overflow is a deterministic parsing error with no race, timing, or memory-layout precondition \u2014 a single crafted netlink batch containing two or more nested NFTA_TUNNEL_KEY_OPTS_GENEVE attributes triggers it every time, with the attacker choosing both the write offset and the payload.\nPR:L - The path is gated only by netlink_net_capable(skb, CAP_NET_ADMIN), which is evaluated against the network namespace\u0027s owning user namespace, so any unprivileged user obtains it via `unshare -Urn`. Table creation, object creation, and module autoload all succeed inside that namespace.\nUI:N - The attacker performs the entire sequence themselves via socket syscalls; no action by any other user or administrator is needed.\nS:U - The corruption stays within the kernel\u0027s own memory and security authority, yielding standard local privilege escalation rather than crossing a virtualization or IOMMU boundary.\nC:H - The mirrored bug in nft_tunnel_opts_dump() performs an out-of-bounds read whose offset and length both come from adjacent heap memory, and nla_put() copies that data into the netlink reply delivered to userspace, disclosing arbitrary kernel heap contents. The OOB write additionally enables full memory disclosure via corrupted neighbouring objects.\nI:H - This is an out-of-bounds heap write with an attacker-controlled destination (up to ~1000 bytes past the start of a ~400-byte kmalloc-512 object) and up to 124 bytes of fully attacker-controlled content, allowing corruption of sprayed adjacent slab objects and control-flow hijacking for privilege escalation.\nA:H - The KASAN report in the fix commit shows a 124-byte slab-out-of-bounds write; corrupting neighbouring slab objects reliably produces kernel oops/panic, and the trigger can be repeated at will from an unprivileged namespace."
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CVE-2025-39764 (GCVE-0-2025-39764)
Vulnerability from cvelistv5
Published
2025-09-11 16:52
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: remove refcounting in expectation dumpers
Same pattern as previous patch: do not keep the expectation object
alive via refcount, only store a cookie value and then use that
as the skip hint for dump resumption.
AFAICS this has the same issue as the one resolved in the conntrack
dumper, when we do
if (!refcount_inc_not_zero(&exp->use))
to increment the refcount, there is a chance that exp == last, which
causes a double-increment of the refcount and subsequent memory leak.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: cf6994c2b9812a9f02b99e89df411ffc5db9c779 Version: cf6994c2b9812a9f02b99e89df411ffc5db9c779 Version: cf6994c2b9812a9f02b99e89df411ffc5db9c779 Version: cf6994c2b9812a9f02b99e89df411ffc5db9c779 Version: cf6994c2b9812a9f02b99e89df411ffc5db9c779 Version: cf6994c2b9812a9f02b99e89df411ffc5db9c779 Version: cf6994c2b9812a9f02b99e89df411ffc5db9c779 |
||
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CVE-2025-22060 (GCVE-0-2025-22060)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: mvpp2: Prevent parser TCAM memory corruption
Protect the parser TCAM/SRAM memory, and the cached (shadow) SRAM
information, from concurrent modifications.
Both the TCAM and SRAM tables are indirectly accessed by configuring
an index register that selects the row to read or write to. This means
that operations must be atomic in order to, e.g., avoid spreading
writes across multiple rows. Since the shadow SRAM array is used to
find free rows in the hardware table, it must also be protected in
order to avoid TOCTOU errors where multiple cores allocate the same
row.
This issue was detected in a situation where `mvpp2_set_rx_mode()` ran
concurrently on two CPUs. In this particular case the
MVPP2_PE_MAC_UC_PROMISCUOUS entry was corrupted, causing the
classifier unit to drop all incoming unicast - indicated by the
`rx_classifier_drops` counter.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3f518509dedc99f0b755d2ce68d24f610e3a005a Version: 3f518509dedc99f0b755d2ce68d24f610e3a005a Version: 3f518509dedc99f0b755d2ce68d24f610e3a005a Version: 3f518509dedc99f0b755d2ce68d24f610e3a005a Version: 3f518509dedc99f0b755d2ce68d24f610e3a005a Version: 3f518509dedc99f0b755d2ce68d24f610e3a005a Version: 3f518509dedc99f0b755d2ce68d24f610e3a005a |
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CVE-2025-68816 (GCVE-0-2025-68816)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: fw_tracer, Validate format string parameters
Add validation for format string parameters in the firmware tracer to
prevent potential security vulnerabilities and crashes from malformed
format strings received from firmware.
The firmware tracer receives format strings from the device firmware and
uses them to format trace messages. Without proper validation, bad
firmware could provide format strings with invalid format specifiers
(e.g., %s, %p, %n) that could lead to crashes, or other undefined
behavior.
Add mlx5_tracer_validate_params() to validate that all format specifiers
in trace strings are limited to safe integer/hex formats (%x, %d, %i,
%u, %llx, %lx, etc.). Reject strings containing other format types that
could be used to access arbitrary memory or cause crashes.
Invalid format strings are added to the trace output for visibility with
"BAD_FORMAT: " prefix.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 70dd6fdb8987b14f7b6105f6be0617299e459398 Version: 70dd6fdb8987b14f7b6105f6be0617299e459398 Version: 70dd6fdb8987b14f7b6105f6be0617299e459398 Version: 70dd6fdb8987b14f7b6105f6be0617299e459398 Version: 70dd6fdb8987b14f7b6105f6be0617299e459398 Version: 70dd6fdb8987b14f7b6105f6be0617299e459398 Version: 70dd6fdb8987b14f7b6105f6be0617299e459398 |
||
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CVE-2026-23086 (GCVE-0-2026-23086)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: cap TX credit to local buffer size
The virtio transports derives its TX credit directly from peer_buf_alloc,
which is set from the remote endpoint's SO_VM_SOCKETS_BUFFER_SIZE value.
On the host side this means that the amount of data we are willing to
queue for a connection is scaled by a guest-chosen buffer size, rather
than the host's own vsock configuration. A malicious guest can advertise
a large buffer and read slowly, causing the host to allocate a
correspondingly large amount of sk_buff memory.
The same thing would happen in the guest with a malicious host, since
virtio transports share the same code base.
Introduce a small helper, virtio_transport_tx_buf_size(), that
returns min(peer_buf_alloc, buf_alloc), and use it wherever we consume
peer_buf_alloc.
This ensures the effective TX window is bounded by both the peer's
advertised buffer and our own buf_alloc (already clamped to
buffer_max_size via SO_VM_SOCKETS_BUFFER_MAX_SIZE), so a remote peer
cannot force the other to queue more data than allowed by its own
vsock settings.
On an unpatched Ubuntu 22.04 host (~64 GiB RAM), running a PoC with
32 guest vsock connections advertising 2 GiB each and reading slowly
drove Slab/SUnreclaim from ~0.5 GiB to ~57 GiB; the system only
recovered after killing the QEMU process. That said, if QEMU memory is
limited with cgroups, the maximum memory used will be limited.
With this patch applied:
Before:
MemFree: ~61.6 GiB
Slab: ~142 MiB
SUnreclaim: ~117 MiB
After 32 high-credit connections:
MemFree: ~61.5 GiB
Slab: ~178 MiB
SUnreclaim: ~152 MiB
Only ~35 MiB increase in Slab/SUnreclaim, no host OOM, and the guest
remains responsive.
Compatibility with non-virtio transports:
- VMCI uses the AF_VSOCK buffer knobs to size its queue pairs per
socket based on the local vsk->buffer_* values; the remote side
cannot enlarge those queues beyond what the local endpoint
configured.
- Hyper-V's vsock transport uses fixed-size VMBus ring buffers and
an MTU bound; there is no peer-controlled credit field comparable
to peer_buf_alloc, and the remote endpoint cannot drive in-flight
kernel memory above those ring sizes.
- The loopback path reuses virtio_transport_common.c, so it
naturally follows the same semantics as the virtio transport.
This change is limited to virtio_transport_common.c and thus affects
virtio-vsock, vhost-vsock, and loopback, bringing them in line with the
"remote window intersected with local policy" behaviour that VMCI and
Hyper-V already effectively have.
[Stefano: small adjustments after changing the previous patch]
[Stefano: tweak the commit message]
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-71161 (GCVE-0-2025-71161)
Vulnerability from cvelistv5
Published
2026-01-23 15:23
Modified
2026-08-05 12:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dm-verity: disable recursive forward error correction
There are two problems with the recursive correction:
1. It may cause denial-of-service. In fec_read_bufs, there is a loop that
has 253 iterations. For each iteration, we may call verity_hash_for_block
recursively. There is a limit of 4 nested recursions - that means that
there may be at most 253^4 (4 billion) iterations. Red Hat QE team
actually created an image that pushes dm-verity to this limit - and this
image just makes the udev-worker process get stuck in the 'D' state.
2. It doesn't work. In fec_read_bufs we store data into the variable
"fio->bufs", but fio bufs is shared between recursive invocations, if
"verity_hash_for_block" invoked correction recursively, it would
overwrite partially filled fio->bufs.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a739ff3f543afbb4a041c16cd0182c8e8d366e70 Version: a739ff3f543afbb4a041c16cd0182c8e8d366e70 Version: a739ff3f543afbb4a041c16cd0182c8e8d366e70 Version: a739ff3f543afbb4a041c16cd0182c8e8d366e70 Version: a739ff3f543afbb4a041c16cd0182c8e8d366e70 Version: a739ff3f543afbb4a041c16cd0182c8e8d366e70 |
||
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CVE-2026-23011 (GCVE-0-2026-23011)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv4: ip_gre: make ipgre_header() robust
Analog to commit db5b4e39c4e6 ("ip6_gre: make ip6gre_header() robust")
Over the years, syzbot found many ways to crash the kernel
in ipgre_header() [1].
This involves team or bonding drivers ability to dynamically
change their dev->needed_headroom and/or dev->hard_header_len
In this particular crash mld_newpack() allocated an skb
with a too small reserve/headroom, and by the time mld_sendpack()
was called, syzbot managed to attach an ipgre device.
[1]
skbuff: skb_under_panic: text:ffffffff89ea3cb7 len:2030915468 put:2030915372 head:ffff888058b43000 data:ffff887fdfa6e194 tail:0x120 end:0x6c0 dev:team0
kernel BUG at net/core/skbuff.c:213 !
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 1322 Comm: kworker/1:9 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: mld mld_ifc_work
RIP: 0010:skb_panic+0x157/0x160 net/core/skbuff.c:213
Call Trace:
<TASK>
skb_under_panic net/core/skbuff.c:223 [inline]
skb_push+0xc3/0xe0 net/core/skbuff.c:2641
ipgre_header+0x67/0x290 net/ipv4/ip_gre.c:897
dev_hard_header include/linux/netdevice.h:3436 [inline]
neigh_connected_output+0x286/0x460 net/core/neighbour.c:1618
NF_HOOK_COND include/linux/netfilter.h:307 [inline]
ip6_output+0x340/0x550 net/ipv6/ip6_output.c:247
NF_HOOK+0x9e/0x380 include/linux/netfilter.h:318
mld_sendpack+0x8d4/0xe60 net/ipv6/mcast.c:1855
mld_send_cr net/ipv6/mcast.c:2154 [inline]
mld_ifc_work+0x83e/0xd60 net/ipv6/mcast.c:2693
process_one_work kernel/workqueue.c:3257 [inline]
process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c54419321455631079c7d6e60bc732dd0c5914c5 Version: c54419321455631079c7d6e60bc732dd0c5914c5 Version: c54419321455631079c7d6e60bc732dd0c5914c5 Version: c54419321455631079c7d6e60bc732dd0c5914c5 Version: c54419321455631079c7d6e60bc732dd0c5914c5 Version: c54419321455631079c7d6e60bc732dd0c5914c5 Version: c54419321455631079c7d6e60bc732dd0c5914c5 |
||
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CVE-2026-23110 (GCVE-0-2026-23110)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: core: Wake up the error handler when final completions race against each other
The fragile ordering between marking commands completed or failed so
that the error handler only wakes when the last running command
completes or times out has race conditions. These race conditions can
cause the SCSI layer to fail to wake the error handler, leaving I/O
through the SCSI host stuck as the error state cannot advance.
First, there is an memory ordering issue within scsi_dec_host_busy().
The write which clears SCMD_STATE_INFLIGHT may be reordered with reads
counting in scsi_host_busy(). While the local CPU will see its own
write, reordering can allow other CPUs in scsi_dec_host_busy() or
scsi_eh_inc_host_failed() to see a raised busy count, causing no CPU to
see a host busy equal to the host_failed count.
This race condition can be prevented with a memory barrier on the error
path to force the write to be visible before counting host busy
commands.
Second, there is a general ordering issue with scsi_eh_inc_host_failed(). By
counting busy commands before incrementing host_failed, it can race with a
final command in scsi_dec_host_busy(), such that scsi_dec_host_busy() does
not see host_failed incremented but scsi_eh_inc_host_failed() counts busy
commands before SCMD_STATE_INFLIGHT is cleared by scsi_dec_host_busy(),
resulting in neither waking the error handler task.
This needs the call to scsi_host_busy() to be moved after host_failed is
incremented to close the race condition.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6eb045e092efefafc6687409a6fa6d1dabf0fb69 Version: 6eb045e092efefafc6687409a6fa6d1dabf0fb69 Version: 6eb045e092efefafc6687409a6fa6d1dabf0fb69 Version: 6eb045e092efefafc6687409a6fa6d1dabf0fb69 Version: 6eb045e092efefafc6687409a6fa6d1dabf0fb69 Version: 6eb045e092efefafc6687409a6fa6d1dabf0fb69 |
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CVE-2024-49994 (GCVE-0-2024-49994)
Vulnerability from cvelistv5
Published
2024-10-21 18:02
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
block: fix integer overflow in BLKSECDISCARD
I independently rediscovered
commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155
block: fix overflow in blk_ioctl_discard()
but for secure erase.
Same problem:
uint64_t r[2] = {512, 18446744073709551104ULL};
ioctl(fd, BLKSECDISCARD, r);
will enter near infinite loop inside blkdev_issue_secure_erase():
a.out: attempt to access beyond end of device
loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048
bio_check_eod: 3286214 callbacks suppressed
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-71085 (GCVE-0-2025-71085)
Vulnerability from cvelistv5
Published
2026-01-13 15:34
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr()
There exists a kernel oops caused by a BUG_ON(nhead < 0) at
net/core/skbuff.c:2232 in pskb_expand_head().
This bug is triggered as part of the calipso_skbuff_setattr()
routine when skb_cow() is passed headroom > INT_MAX
(i.e. (int)(skb_headroom(skb) + len_delta) < 0).
The root cause of the bug is due to an implicit integer cast in
__skb_cow(). The check (headroom > skb_headroom(skb)) is meant to ensure
that delta = headroom - skb_headroom(skb) is never negative, otherwise
we will trigger a BUG_ON in pskb_expand_head(). However, if
headroom > INT_MAX and delta <= -NET_SKB_PAD, the check passes, delta
becomes negative, and pskb_expand_head() is passed a negative value for
nhead.
Fix the trigger condition in calipso_skbuff_setattr(). Avoid passing
"negative" headroom sizes to skb_cow() within calipso_skbuff_setattr()
by only using skb_cow() to grow headroom.
PoC:
Using `netlabelctl` tool:
netlabelctl map del default
netlabelctl calipso add pass doi:7
netlabelctl map add default address:0::1/128 protocol:calipso,7
Then run the following PoC:
int fd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
// setup msghdr
int cmsg_size = 2;
int cmsg_len = 0x60;
struct msghdr msg;
struct sockaddr_in6 dest_addr;
struct cmsghdr * cmsg = (struct cmsghdr *) calloc(1,
sizeof(struct cmsghdr) + cmsg_len);
msg.msg_name = &dest_addr;
msg.msg_namelen = sizeof(dest_addr);
msg.msg_iov = NULL;
msg.msg_iovlen = 0;
msg.msg_control = cmsg;
msg.msg_controllen = cmsg_len;
msg.msg_flags = 0;
// setup sockaddr
dest_addr.sin6_family = AF_INET6;
dest_addr.sin6_port = htons(31337);
dest_addr.sin6_flowinfo = htonl(31337);
dest_addr.sin6_addr = in6addr_loopback;
dest_addr.sin6_scope_id = 31337;
// setup cmsghdr
cmsg->cmsg_len = cmsg_len;
cmsg->cmsg_level = IPPROTO_IPV6;
cmsg->cmsg_type = IPV6_HOPOPTS;
char * hop_hdr = (char *)cmsg + sizeof(struct cmsghdr);
hop_hdr[1] = 0x9; //set hop size - (0x9 + 1) * 8 = 80
sendmsg(fd, &msg, 0);
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2917f57b6bc15cc6787496ee5f2fdf17f0e9b7d3 Version: 2917f57b6bc15cc6787496ee5f2fdf17f0e9b7d3 Version: 2917f57b6bc15cc6787496ee5f2fdf17f0e9b7d3 Version: 2917f57b6bc15cc6787496ee5f2fdf17f0e9b7d3 Version: 2917f57b6bc15cc6787496ee5f2fdf17f0e9b7d3 Version: 2917f57b6bc15cc6787496ee5f2fdf17f0e9b7d3 Version: 2917f57b6bc15cc6787496ee5f2fdf17f0e9b7d3 |
||
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CVE-2026-23319 (GCVE-0-2026-23319)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim
The root cause of this bug is that when 'bpf_link_put' reduces the
refcount of 'shim_link->link.link' to zero, the resource is considered
released but may still be referenced via 'tr->progs_hlist' in
'cgroup_shim_find'. The actual cleanup of 'tr->progs_hlist' in
'bpf_shim_tramp_link_release' is deferred. During this window, another
process can cause a use-after-free via 'bpf_trampoline_link_cgroup_shim'.
Based on Martin KaFai Lau's suggestions, I have created a simple patch.
To fix this:
Add an atomic non-zero check in 'bpf_trampoline_link_cgroup_shim'.
Only increment the refcount if it is not already zero.
Testing:
I verified the fix by adding a delay in
'bpf_shim_tramp_link_release' to make the bug easier to trigger:
static void bpf_shim_tramp_link_release(struct bpf_link *link)
{
/* ... */
if (!shim_link->trampoline)
return;
+ msleep(100);
WARN_ON_ONCE(bpf_trampoline_unlink_prog(&shim_link->link,
shim_link->trampoline, NULL));
bpf_trampoline_put(shim_link->trampoline);
}
Before the patch, running a PoC easily reproduced the crash(almost 100%)
with a call trace similar to KaiyanM's report.
After the patch, the bug no longer occurs even after millions of
iterations.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e Version: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e Version: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e Version: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e Version: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e Version: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e |
||
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CVE-2025-71120 (GCVE-0-2025-71120)
Vulnerability from cvelistv5
Published
2026-01-14 15:06
Modified
2026-08-05 12:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf
A zero length gss_token results in pages == 0 and in_token->pages[0]
is NULL. The code unconditionally evaluates
page_address(in_token->pages[0]) for the initial memcpy, which can
dereference NULL even when the copy length is 0. Guard the first
memcpy so it only runs when length > 0.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5866efa8cbfbadf3905072798e96652faf02dbe8 Version: 5866efa8cbfbadf3905072798e96652faf02dbe8 Version: 5866efa8cbfbadf3905072798e96652faf02dbe8 Version: 5866efa8cbfbadf3905072798e96652faf02dbe8 Version: 5866efa8cbfbadf3905072798e96652faf02dbe8 Version: 5866efa8cbfbadf3905072798e96652faf02dbe8 Version: 5866efa8cbfbadf3905072798e96652faf02dbe8 Version: 66ed7b413d31c6ff23901ac4443b1cc1af2f6113 Version: 7be8c165dc81564705e8e0b72d398ef708f67eaa Version: 4.19.99 ≤ Version: 5.4.15 ≤ |
||
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CVE-2025-40149 (GCVE-0-2025-40149)
Vulnerability from cvelistv5
Published
2025-11-12 10:23
Modified
2026-08-05 12:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().
get_netdev_for_sock() is called during setsockopt(),
so not under RCU.
Using sk_dst_get(sk)->dev could trigger UAF.
Let's use __sk_dst_get() and dst_dev_rcu().
Note that the only ->ndo_sk_get_lower_dev() user is
bond_sk_get_lower_dev(), which uses RCU.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e8f69799810c32dd40c6724d829eccc70baad07f Version: e8f69799810c32dd40c6724d829eccc70baad07f Version: e8f69799810c32dd40c6724d829eccc70baad07f Version: e8f69799810c32dd40c6724d829eccc70baad07f Version: e8f69799810c32dd40c6724d829eccc70baad07f Version: e8f69799810c32dd40c6724d829eccc70baad07f |
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CVE-2025-68788 (GCVE-0-2025-68788)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fsnotify: do not generate ACCESS/MODIFY events on child for special files
inotify/fanotify do not allow users with no read access to a file to
subscribe to events (e.g. IN_ACCESS/IN_MODIFY), but they do allow the
same user to subscribe for watching events on children when the user
has access to the parent directory (e.g. /dev).
Users with no read access to a file but with read access to its parent
directory can still stat the file and see if it was accessed/modified
via atime/mtime change.
The same is not true for special files (e.g. /dev/null). Users will not
generally observe atime/mtime changes when other users read/write to
special files, only when someone sets atime/mtime via utimensat().
Align fsnotify events with this stat behavior and do not generate
ACCESS/MODIFY events to parent watchers on read/write of special files.
The events are still generated to parent watchers on utimensat(). This
closes some side-channels that could be possibly used for information
exfiltration [1].
[1] https://snee.la/pdf/pubs/file-notification-attacks.pdf
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 72acc854427948efed7a83da27f7dc3239ac9afc Version: 72acc854427948efed7a83da27f7dc3239ac9afc Version: 72acc854427948efed7a83da27f7dc3239ac9afc Version: 72acc854427948efed7a83da27f7dc3239ac9afc Version: 72acc854427948efed7a83da27f7dc3239ac9afc Version: 72acc854427948efed7a83da27f7dc3239ac9afc Version: 72acc854427948efed7a83da27f7dc3239ac9afc |
||
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CVE-2026-31417 (GCVE-0-2026-31417)
Vulnerability from cvelistv5
Published
2026-04-13 13:21
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/x25: Fix overflow when accumulating packets
Add a check to ensure that `x25_sock.fraglen` does not overflow.
The `fraglen` also needs to be resetted when purging `fragment_queue` in
`x25_clear_queues()`.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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| Linux | Linux |
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CVE-2026-23231 (GCVE-0-2026-23231)
Vulnerability from cvelistv5
Published
2026-03-04 12:58
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix use-after-free in nf_tables_addchain()
nf_tables_addchain() publishes the chain to table->chains via
list_add_tail_rcu() (in nft_chain_add()) before registering hooks.
If nf_tables_register_hook() then fails, the error path calls
nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy()
with no RCU grace period in between.
This creates two use-after-free conditions:
1) Control-plane: nf_tables_dump_chains() traverses table->chains
under rcu_read_lock(). A concurrent dump can still be walking
the chain when the error path frees it.
2) Packet path: for NFPROTO_INET, nf_register_net_hook() briefly
installs the IPv4 hook before IPv6 registration fails. Packets
entering nft_do_chain() via the transient IPv4 hook can still be
dereferencing chain->blob_gen_X when the error path frees the
chain.
Add synchronize_rcu() between nft_chain_del() and the chain destroy
so that all RCU readers -- both dump threads and in-flight packet
evaluation -- have finished before the chain is freed.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 91c7b38dc9f0de4f7f444b796d14476bc12df7bc Version: 91c7b38dc9f0de4f7f444b796d14476bc12df7bc Version: 91c7b38dc9f0de4f7f444b796d14476bc12df7bc Version: 91c7b38dc9f0de4f7f444b796d14476bc12df7bc Version: 91c7b38dc9f0de4f7f444b796d14476bc12df7bc Version: 91c7b38dc9f0de4f7f444b796d14476bc12df7bc |
||
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CVE-2026-22992 (GCVE-0-2026-22992)
Vulnerability from cvelistv5
Published
2026-01-23 15:24
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
libceph: return the handler error from mon_handle_auth_done()
Currently any error from ceph_auth_handle_reply_done() is propagated
via finish_auth() but isn't returned from mon_handle_auth_done(). This
results in higher layers learning that (despite the monitor considering
us to be successfully authenticated) something went wrong in the
authentication phase and reacting accordingly, but msgr2 still trying
to proceed with establishing the session in the background. In the
case of secure mode this can trigger a WARN in setup_crypto() and later
lead to a NULL pointer dereference inside of prepare_auth_signature().
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: cd1a677cad994021b19665ed476aea63f5d54f31 Version: cd1a677cad994021b19665ed476aea63f5d54f31 Version: cd1a677cad994021b19665ed476aea63f5d54f31 Version: cd1a677cad994021b19665ed476aea63f5d54f31 Version: cd1a677cad994021b19665ed476aea63f5d54f31 Version: cd1a677cad994021b19665ed476aea63f5d54f31 |
||
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CVE-2025-38614 (GCVE-0-2025-38614)
Vulnerability from cvelistv5
Published
2025-08-19 17:03
Modified
2026-08-05 12:03
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
eventpoll: Fix semi-unbounded recursion
Ensure that epoll instances can never form a graph deeper than
EP_MAX_NESTS+1 links.
Currently, ep_loop_check_proc() ensures that the graph is loop-free and
does some recursion depth checks, but those recursion depth checks don't
limit the depth of the resulting tree for two reasons:
- They don't look upwards in the tree.
- If there are multiple downwards paths of different lengths, only one of
the paths is actually considered for the depth check since commit
28d82dc1c4ed ("epoll: limit paths").
Essentially, the current recursion depth check in ep_loop_check_proc() just
serves to prevent it from recursing too deeply while checking for loops.
A more thorough check is done in reverse_path_check() after the new graph
edge has already been created; this checks, among other things, that no
paths going upwards from any non-epoll file with a length of more than 5
edges exist. However, this check does not apply to non-epoll files.
As a result, it is possible to recurse to a depth of at least roughly 500,
tested on v6.15. (I am unsure if deeper recursion is possible; and this may
have changed with commit 8c44dac8add7 ("eventpoll: Fix priority inversion
problem").)
To fix it:
1. In ep_loop_check_proc(), note the subtree depth of each visited node,
and use subtree depths for the total depth calculation even when a subtree
has already been visited.
2. Add ep_get_upwards_depth_proc() for similarly determining the maximum
depth of an upwards walk.
3. In ep_loop_check(), use these values to limit the total path length
between epoll nodes to EP_MAX_NESTS edges.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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| Linux | Linux |
Version: 22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e Version: 22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e Version: 22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e Version: 22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e Version: 22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e Version: 22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e Version: 22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e Version: 8216e1a0d47cae06a75c42346f19dffe14e42d57 Version: 28a92748aa4bc57d35e7b079498b0ac2e7610a37 Version: 7eebcd4792c5a341559aed327b6afecbb1c46402 Version: 0eccd188cfeaf857a26f2d72941d27d298cf6a54 Version: a72affdbb09f3f24f64ffcbbdf62c2e57c58f379 Version: 2.6.32.30 ≤ Version: 2.6.33.8 ≤ Version: 2.6.34.10 ≤ Version: 2.6.35.12 ≤ Version: 2.6.37.3 ≤ |
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CVE-2025-39827 (GCVE-0-2025-39827)
Vulnerability from cvelistv5
Published
2025-09-16 13:00
Modified
2026-08-05 12:05
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: rose: include node references in rose_neigh refcount
Current implementation maintains two separate reference counting
mechanisms: the 'count' field in struct rose_neigh tracks references from
rose_node structures, while the 'use' field (now refcount_t) tracks
references from rose_sock.
This patch merges these two reference counting systems using 'use' field
for proper reference management. Specifically, this patch adds incrementing
and decrementing of rose_neigh->use when rose_neigh->count is incremented
or decremented.
This patch also modifies rose_rt_free(), rose_rt_device_down() and
rose_clear_route() to properly release references to rose_neigh objects
before freeing a rose_node through rose_remove_node().
These changes ensure rose_neigh structures are properly freed only when
all references, including those from rose_node structures, are released.
As a result, this resolves a slab-use-after-free issue reported by Syzbot.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-38721 (GCVE-0-2025-38721)
Vulnerability from cvelistv5
Published
2025-09-04 15:33
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: fix refcount leak on table dump
There is a reference count leak in ctnetlink_dump_table():
if (res < 0) {
nf_conntrack_get(&ct->ct_general); // HERE
cb->args[1] = (unsigned long)ct;
...
While its very unlikely, its possible that ct == last.
If this happens, then the refcount of ct was already incremented.
This 2nd increment is never undone.
This prevents the conntrack object from being released, which in turn
keeps prevents cnet->count from dropping back to 0.
This will then block the netns dismantle (or conntrack rmmod) as
nf_conntrack_cleanup_net_list() will wait forever.
This can be reproduced by running conntrack_resize.sh selftest in a loop.
It takes ~20 minutes for me on a preemptible kernel on average before
I see a runaway kworker spinning in nf_conntrack_cleanup_net_list.
One fix would to change this to:
if (res < 0) {
if (ct != last)
nf_conntrack_get(&ct->ct_general);
But this reference counting isn't needed in the first place.
We can just store a cookie value instead.
A followup patch will do the same for ctnetlink_exp_dump_table,
it looks to me as if this has the same problem and like
ctnetlink_dump_table, we only need a 'skip hint', not the actual
object so we can apply the same cookie strategy there as well.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 Version: d205dc40798d97d63ad348bfaf7394f445d152d4 |
||
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CVE-2025-40070 (GCVE-0-2025-40070)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
pps: fix warning in pps_register_cdev when register device fail
Similar to previous commit 2a934fdb01db ("media: v4l2-dev: fix error
handling in __video_register_device()"), the release hook should be set
before device_register(). Otherwise, when device_register() return error
and put_device() try to callback the release function, the below warning
may happen.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4760 at drivers/base/core.c:2567 device_release+0x1bd/0x240 drivers/base/core.c:2567
Modules linked in:
CPU: 1 UID: 0 PID: 4760 Comm: syz.4.914 Not tainted 6.17.0-rc3+ #1 NONE
RIP: 0010:device_release+0x1bd/0x240 drivers/base/core.c:2567
Call Trace:
<TASK>
kobject_cleanup+0x136/0x410 lib/kobject.c:689
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0xe9/0x130 lib/kobject.c:737
put_device+0x24/0x30 drivers/base/core.c:3797
pps_register_cdev+0x2da/0x370 drivers/pps/pps.c:402
pps_register_source+0x2f6/0x480 drivers/pps/kapi.c:108
pps_tty_open+0x190/0x310 drivers/pps/clients/pps-ldisc.c:57
tty_ldisc_open+0xa7/0x120 drivers/tty/tty_ldisc.c:432
tty_set_ldisc+0x333/0x780 drivers/tty/tty_ldisc.c:563
tiocsetd drivers/tty/tty_io.c:2429 [inline]
tty_ioctl+0x5d1/0x1700 drivers/tty/tty_io.c:2728
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:598 [inline]
__se_sys_ioctl fs/ioctl.c:584 [inline]
__x64_sys_ioctl+0x194/0x210 fs/ioctl.c:584
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x5f/0x2a0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x76/0x7e
</TASK>
Before commit c79a39dc8d06 ("pps: Fix a use-after-free"),
pps_register_cdev() call device_create() to create pps->dev, which will
init dev->release to device_create_release(). Now the comment is outdated,
just remove it.
Thanks for the reminder from Calvin Owens, 'kfree_pps' should be removed
in pps_register_source() to avoid a double free in the failure case.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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||||||||||||||||||||||||||
Impacted products
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| Linux | Linux |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npps: fix warning in pps_register_cdev when register device fail\n\nSimilar to previous commit 2a934fdb01db (\"media: v4l2-dev: fix error\nhandling in __video_register_device()\"), the release hook should be set\nbefore device_register(). Otherwise, when device_register() return error\nand put_device() try to callback the release function, the below warning\nmay happen.\n\n ------------[ cut here ]------------\n WARNING: CPU: 1 PID: 4760 at drivers/base/core.c:2567 device_release+0x1bd/0x240 drivers/base/core.c:2567\n Modules linked in:\n CPU: 1 UID: 0 PID: 4760 Comm: syz.4.914 Not tainted 6.17.0-rc3+ #1 NONE\n RIP: 0010:device_release+0x1bd/0x240 drivers/base/core.c:2567\n Call Trace:\n \u003cTASK\u003e\n kobject_cleanup+0x136/0x410 lib/kobject.c:689\n kobject_release lib/kobject.c:720 [inline]\n kref_put include/linux/kref.h:65 [inline]\n kobject_put+0xe9/0x130 lib/kobject.c:737\n put_device+0x24/0x30 drivers/base/core.c:3797\n pps_register_cdev+0x2da/0x370 drivers/pps/pps.c:402\n pps_register_source+0x2f6/0x480 drivers/pps/kapi.c:108\n pps_tty_open+0x190/0x310 drivers/pps/clients/pps-ldisc.c:57\n tty_ldisc_open+0xa7/0x120 drivers/tty/tty_ldisc.c:432\n tty_set_ldisc+0x333/0x780 drivers/tty/tty_ldisc.c:563\n tiocsetd drivers/tty/tty_io.c:2429 [inline]\n tty_ioctl+0x5d1/0x1700 drivers/tty/tty_io.c:2728\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:598 [inline]\n __se_sys_ioctl fs/ioctl.c:584 [inline]\n __x64_sys_ioctl+0x194/0x210 fs/ioctl.c:584\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0x5f/0x2a0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n \u003c/TASK\u003e\n\nBefore commit c79a39dc8d06 (\"pps: Fix a use-after-free\"),\npps_register_cdev() call device_create() to create pps-\u003edev, which will\ninit dev-\u003erelease to device_create_release(). Now the comment is outdated,\njust remove it.\n\nThanks for the reminder from Calvin Owens, \u0027kfree_pps\u0027 should be removed\nin pps_register_source() to avoid a double free in the failure case."
}
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"providerMetadata": {
"dateUpdated": "2026-05-23T16:01:20.071Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/b0531cdba5029f897da5156815e3bdafe1e9b88d"
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"title": "pps: fix warning in pps_register_cdev when register device fail",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40070",
"datePublished": "2025-10-28T11:48:38.838Z",
"dateReserved": "2025-04-16T07:20:57.159Z",
"dateUpdated": "2026-07-14T12:43:16.884Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-31508 (GCVE-0-2026-31508)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-08-05 12:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: openvswitch: Avoid releasing netdev before teardown completes
The patch cited in the Fixes tag below changed the teardown code for
OVS ports to no longer unconditionally take the RTNL. After this change,
the netdev_destroy() callback can proceed immediately to the call_rcu()
invocation if the IFF_OVS_DATAPATH flag is already cleared on the
netdev.
The ovs_netdev_detach_dev() function clears the flag before completing
the unregistration, and if it gets preempted after clearing the flag (as
can happen on an -rt kernel), netdev_destroy() can complete and the
device can be freed before the unregistration completes. This leads to a
splat like:
[ 998.393867] Oops: general protection fault, probably for non-canonical address 0xff00000001000239: 0000 [#1] SMP PTI
[ 998.393877] CPU: 42 UID: 0 PID: 55177 Comm: ip Kdump: loaded Not tainted 6.12.0-211.1.1.el10_2.x86_64+rt #1 PREEMPT_RT
[ 998.393886] Hardware name: Dell Inc. PowerEdge R740/0JMK61, BIOS 2.24.0 03/27/2025
[ 998.393889] RIP: 0010:dev_set_promiscuity+0x8d/0xa0
[ 998.393901] Code: 00 00 75 d8 48 8b 53 08 48 83 ba b0 02 00 00 00 75 ca 48 83 c4 08 5b c3 cc cc cc cc 48 83 bf 48 09 00 00 00 75 91 48 8b 47 08 <48> 83 b8 b0 02 00 00 00 74 97 eb 81 0f 1f 80 00 00 00 00 90 90 90
[ 998.393906] RSP: 0018:ffffce5864a5f6a0 EFLAGS: 00010246
[ 998.393912] RAX: ff00000000ffff89 RBX: ffff894d0adf5a05 RCX: 0000000000000000
[ 998.393917] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff894d0adf5a05
[ 998.393921] RBP: ffff894d19252000 R08: ffff894d19252000 R09: 0000000000000000
[ 998.393924] R10: ffff894d19252000 R11: ffff894d192521b8 R12: 0000000000000006
[ 998.393927] R13: ffffce5864a5f738 R14: 00000000ffffffe2 R15: 0000000000000000
[ 998.393931] FS: 00007fad61971800(0000) GS:ffff894cc0140000(0000) knlGS:0000000000000000
[ 998.393936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 998.393940] CR2: 000055df0a2a6e40 CR3: 000000011c7fe003 CR4: 00000000007726f0
[ 998.393944] PKRU: 55555554
[ 998.393946] Call Trace:
[ 998.393949] <TASK>
[ 998.393952] ? show_trace_log_lvl+0x1b0/0x2f0
[ 998.393961] ? show_trace_log_lvl+0x1b0/0x2f0
[ 998.393975] ? dp_device_event+0x41/0x80 [openvswitch]
[ 998.394009] ? __die_body.cold+0x8/0x12
[ 998.394016] ? die_addr+0x3c/0x60
[ 998.394027] ? exc_general_protection+0x16d/0x390
[ 998.394042] ? asm_exc_general_protection+0x26/0x30
[ 998.394058] ? dev_set_promiscuity+0x8d/0xa0
[ 998.394066] ? ovs_netdev_detach_dev+0x3a/0x80 [openvswitch]
[ 998.394092] dp_device_event+0x41/0x80 [openvswitch]
[ 998.394102] notifier_call_chain+0x5a/0xd0
[ 998.394106] unregister_netdevice_many_notify+0x51b/0xa60
[ 998.394110] rtnl_dellink+0x169/0x3e0
[ 998.394121] ? rt_mutex_slowlock.constprop.0+0x95/0xd0
[ 998.394125] rtnetlink_rcv_msg+0x142/0x3f0
[ 998.394128] ? avc_has_perm_noaudit+0x69/0xf0
[ 998.394130] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 998.394132] netlink_rcv_skb+0x50/0x100
[ 998.394138] netlink_unicast+0x292/0x3f0
[ 998.394141] netlink_sendmsg+0x21b/0x470
[ 998.394145] ____sys_sendmsg+0x39d/0x3d0
[ 998.394149] ___sys_sendmsg+0x9a/0xe0
[ 998.394156] __sys_sendmsg+0x7a/0xd0
[ 998.394160] do_syscall_64+0x7f/0x170
[ 998.394162] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 998.394165] RIP: 0033:0x7fad61bf4724
[ 998.394188] Code: 89 02 b8 ff ff ff ff eb bb 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 80 3d c5 e9 0c 00 00 74 13 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 89 54 24 1c 48 89
[ 998.394189] RSP: 002b:00007ffd7e2f7cb8 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[ 998.394191] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fad61bf4724
[ 998.394193] RDX: 0000000000000000 RSI: 00007ffd7e2f7d20 RDI: 0000000000000003
[ 998.394194] RBP: 00007ffd7e2f7d90 R08: 0000000000000010 R09: 000000000000003f
[ 998.394195] R10: 000055df11558010 R11: 0000000000000202 R12: 00007ffd7e2
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b823c3344d5446b720227ba561df10a4f0add515 Version: 052e5db5be4576e0a8ef1460b210da5f328f4cd1 Version: c98263d5ace597c096a7a60aeef790da7b54979e Version: 0fc642f011cb7a7eff41109e66d3b552e9f4d795 Version: 5116f61ab11846844585c9082c547c4ccd97ff1a Version: f31557fb1b35332cca9994aa196cef284bcf3807 Version: 5498227676303e3ffa9a3a46214af96bc3e81314 Version: 5498227676303e3ffa9a3a46214af96bc3e81314 Version: 5.10.248 ≤ Version: 5.15.198 ≤ Version: 6.1.160 ≤ Version: 6.6.120 ≤ Version: 6.12.64 ≤ Version: 6.18.4 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: Avoid releasing netdev before teardown completes\n\nThe patch cited in the Fixes tag below changed the teardown code for\nOVS ports to no longer unconditionally take the RTNL. After this change,\nthe netdev_destroy() callback can proceed immediately to the call_rcu()\ninvocation if the IFF_OVS_DATAPATH flag is already cleared on the\nnetdev.\n\nThe ovs_netdev_detach_dev() function clears the flag before completing\nthe unregistration, and if it gets preempted after clearing the flag (as\ncan happen on an -rt kernel), netdev_destroy() can complete and the\ndevice can be freed before the unregistration completes. This leads to a\nsplat like:\n\n[ 998.393867] Oops: general protection fault, probably for non-canonical address 0xff00000001000239: 0000 [#1] SMP PTI\n[ 998.393877] CPU: 42 UID: 0 PID: 55177 Comm: ip Kdump: loaded Not tainted 6.12.0-211.1.1.el10_2.x86_64+rt #1 PREEMPT_RT\n[ 998.393886] Hardware name: Dell Inc. PowerEdge R740/0JMK61, BIOS 2.24.0 03/27/2025\n[ 998.393889] RIP: 0010:dev_set_promiscuity+0x8d/0xa0\n[ 998.393901] Code: 00 00 75 d8 48 8b 53 08 48 83 ba b0 02 00 00 00 75 ca 48 83 c4 08 5b c3 cc cc cc cc 48 83 bf 48 09 00 00 00 75 91 48 8b 47 08 \u003c48\u003e 83 b8 b0 02 00 00 00 74 97 eb 81 0f 1f 80 00 00 00 00 90 90 90\n[ 998.393906] RSP: 0018:ffffce5864a5f6a0 EFLAGS: 00010246\n[ 998.393912] RAX: ff00000000ffff89 RBX: ffff894d0adf5a05 RCX: 0000000000000000\n[ 998.393917] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff894d0adf5a05\n[ 998.393921] RBP: ffff894d19252000 R08: ffff894d19252000 R09: 0000000000000000\n[ 998.393924] R10: ffff894d19252000 R11: ffff894d192521b8 R12: 0000000000000006\n[ 998.393927] R13: ffffce5864a5f738 R14: 00000000ffffffe2 R15: 0000000000000000\n[ 998.393931] FS: 00007fad61971800(0000) GS:ffff894cc0140000(0000) knlGS:0000000000000000\n[ 998.393936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 998.393940] CR2: 000055df0a2a6e40 CR3: 000000011c7fe003 CR4: 00000000007726f0\n[ 998.393944] PKRU: 55555554\n[ 998.393946] Call Trace:\n[ 998.393949] \u003cTASK\u003e\n[ 998.393952] ? show_trace_log_lvl+0x1b0/0x2f0\n[ 998.393961] ? show_trace_log_lvl+0x1b0/0x2f0\n[ 998.393975] ? dp_device_event+0x41/0x80 [openvswitch]\n[ 998.394009] ? __die_body.cold+0x8/0x12\n[ 998.394016] ? die_addr+0x3c/0x60\n[ 998.394027] ? exc_general_protection+0x16d/0x390\n[ 998.394042] ? asm_exc_general_protection+0x26/0x30\n[ 998.394058] ? dev_set_promiscuity+0x8d/0xa0\n[ 998.394066] ? ovs_netdev_detach_dev+0x3a/0x80 [openvswitch]\n[ 998.394092] dp_device_event+0x41/0x80 [openvswitch]\n[ 998.394102] notifier_call_chain+0x5a/0xd0\n[ 998.394106] unregister_netdevice_many_notify+0x51b/0xa60\n[ 998.394110] rtnl_dellink+0x169/0x3e0\n[ 998.394121] ? rt_mutex_slowlock.constprop.0+0x95/0xd0\n[ 998.394125] rtnetlink_rcv_msg+0x142/0x3f0\n[ 998.394128] ? avc_has_perm_noaudit+0x69/0xf0\n[ 998.394130] ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n[ 998.394132] netlink_rcv_skb+0x50/0x100\n[ 998.394138] netlink_unicast+0x292/0x3f0\n[ 998.394141] netlink_sendmsg+0x21b/0x470\n[ 998.394145] ____sys_sendmsg+0x39d/0x3d0\n[ 998.394149] ___sys_sendmsg+0x9a/0xe0\n[ 998.394156] __sys_sendmsg+0x7a/0xd0\n[ 998.394160] do_syscall_64+0x7f/0x170\n[ 998.394162] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[ 998.394165] RIP: 0033:0x7fad61bf4724\n[ 998.394188] Code: 89 02 b8 ff ff ff ff eb bb 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 80 3d c5 e9 0c 00 00 74 13 b8 2e 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 89 54 24 1c 48 89\n[ 998.394189] RSP: 002b:00007ffd7e2f7cb8 EFLAGS: 00000202 ORIG_RAX: 000000000000002e\n[ 998.394191] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fad61bf4724\n[ 998.394193] RDX: 0000000000000000 RSI: 00007ffd7e2f7d20 RDI: 0000000000000003\n[ 998.394194] RBP: 00007ffd7e2f7d90 R08: 0000000000000010 R09: 000000000000003f\n[ 998.394195] R10: 000055df11558010 R11: 0000000000000202 R12: 00007ffd7e2\n---truncated---"
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CVE-2024-50063 (GCVE-0-2024-50063)
Vulnerability from cvelistv5
Published
2024-10-21 19:39
Modified
2026-08-05 11:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Prevent tail call between progs attached to different hooks
bpf progs can be attached to kernel functions, and the attached functions
can take different parameters or return different return values. If
prog attached to one kernel function tail calls prog attached to another
kernel function, the ctx access or return value verification could be
bypassed.
For example, if prog1 is attached to func1 which takes only 1 parameter
and prog2 is attached to func2 which takes two parameters. Since verifier
assumes the bpf ctx passed to prog2 is constructed based on func2's
prototype, verifier allows prog2 to access the second parameter from
the bpf ctx passed to it. The problem is that verifier does not prevent
prog1 from passing its bpf ctx to prog2 via tail call. In this case,
the bpf ctx passed to prog2 is constructed from func1 instead of func2,
that is, the assumption for ctx access verification is bypassed.
Another example, if BPF LSM prog1 is attached to hook file_alloc_security,
and BPF LSM prog2 is attached to hook bpf_lsm_audit_rule_known. Verifier
knows the return value rules for these two hooks, e.g. it is legal for
bpf_lsm_audit_rule_known to return positive number 1, and it is illegal
for file_alloc_security to return positive number. So verifier allows
prog2 to return positive number 1, but does not allow prog1 to return
positive number. The problem is that verifier does not prevent prog1
from calling prog2 via tail call. In this case, prog2's return value 1
will be used as the return value for prog1's hook file_alloc_security.
That is, the return value rule is bypassed.
This patch adds restriction for tail call to prevent such bypasses.
References
| URL | Tags | |
|---|---|---|
Impacted products
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}
],
"x_adpType": "supplier"
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"product": "Linux",
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],
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CVE-2024-27056 (GCVE-0-2024-27056)
Vulnerability from cvelistv5
Published
2024-05-01 12:54
Modified
2026-08-05 11:29
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: ensure offloading TID queue exists
The resume code path assumes that the TX queue for the offloading TID
has been configured. At resume time it then tries to sync the write
pointer as it may have been updated by the firmware.
In the unusual event that no packets have been send on TID 0, the queue
will not have been allocated and this causes a crash. Fix this by
ensuring the queue exist at suspend time.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-21705 (GCVE-0-2025-21705)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: handle fastopen disconnect correctly
Syzbot was able to trigger a data stream corruption:
WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 __mptcp_clean_una+0xddb/0xff0 net/mptcp/protocol.c:1024
Modules linked in:
CPU: 0 UID: 0 PID: 9846 Comm: syz-executor351 Not tainted 6.13.0-rc2-syzkaller-00059-g00a5acdbf398 #0
Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__mptcp_clean_una+0xddb/0xff0 net/mptcp/protocol.c:1024
Code: fa ff ff 48 8b 4c 24 18 80 e1 07 fe c1 38 c1 0f 8c 8e fa ff ff 48 8b 7c 24 18 e8 e0 db 54 f6 e9 7f fa ff ff e8 e6 80 ee f5 90 <0f> 0b 90 4c 8b 6c 24 40 4d 89 f4 e9 04 f5 ff ff 44 89 f1 80 e1 07
RSP: 0018:ffffc9000c0cf400 EFLAGS: 00010293
RAX: ffffffff8bb0dd5a RBX: ffff888033f5d230 RCX: ffff888059ce8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c0cf518 R08: ffffffff8bb0d1dd R09: 1ffff110170c8928
R10: dffffc0000000000 R11: ffffed10170c8929 R12: 0000000000000000
R13: ffff888033f5d220 R14: dffffc0000000000 R15: ffff8880592b8000
FS: 00007f6e866496c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e86f491a0 CR3: 00000000310e6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__mptcp_clean_una_wakeup+0x7f/0x2d0 net/mptcp/protocol.c:1074
mptcp_release_cb+0x7cb/0xb30 net/mptcp/protocol.c:3493
release_sock+0x1aa/0x1f0 net/core/sock.c:3640
inet_wait_for_connect net/ipv4/af_inet.c:609 [inline]
__inet_stream_connect+0x8bd/0xf30 net/ipv4/af_inet.c:703
mptcp_sendmsg_fastopen+0x2a2/0x530 net/mptcp/protocol.c:1755
mptcp_sendmsg+0x1884/0x1b10 net/mptcp/protocol.c:1830
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x1a6/0x270 net/socket.c:726
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583
___sys_sendmsg net/socket.c:2637 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2669
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6e86ebfe69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 1f 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6e86649168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f6e86f491b8 RCX: 00007f6e86ebfe69
RDX: 0000000030004001 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f6e86f491b0 R08: 00007f6e866496c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6e86f491bc
R13: 000000000000006e R14: 00007ffe445d9420 R15: 00007ffe445d9508
</TASK>
The root cause is the bad handling of disconnect() generated internally
by the MPTCP protocol in case of connect FASTOPEN errors.
Address the issue increasing the socket disconnect counter even on such
a case, to allow other threads waiting on the same socket lock to
properly error out.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b7bb71dfb541df376c21c24451369fea83c4f327 Version: c2b2ae3925b65070adb27d5a31a31c376f26dec7 Version: c2b2ae3925b65070adb27d5a31a31c376f26dec7 Version: c2b2ae3925b65070adb27d5a31a31c376f26dec7 Version: c2b2ae3925b65070adb27d5a31a31c376f26dec7 Version: 9c998d59a6b1359ad43d1ef38538af5f55fd01a2 Version: 6.1.36 ≤ Version: 6.3.10 ≤ |
||
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CVE-2025-40105 (GCVE-0-2025-40105)
Vulnerability from cvelistv5
Published
2025-10-30 09:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vfs: Don't leak disconnected dentries on umount
When user calls open_by_handle_at() on some inode that is not cached, we
will create disconnected dentry for it. If such dentry is a directory,
exportfs_decode_fh_raw() will then try to connect this dentry to the
dentry tree through reconnect_path(). It may happen for various reasons
(such as corrupted fs or race with rename) that the call to
lookup_one_unlocked() in reconnect_one() will fail to find the dentry we
are trying to reconnect and instead create a new dentry under the
parent. Now this dentry will not be marked as disconnected although the
parent still may well be disconnected (at least in case this
inconsistency happened because the fs is corrupted and .. doesn't point
to the real parent directory). This creates inconsistency in
disconnected flags but AFAICS it was mostly harmless. At least until
commit f1ee616214cb ("VFS: don't keep disconnected dentries on d_anon")
which removed adding of most disconnected dentries to sb->s_anon list.
Thus after this commit cleanup of disconnected dentries implicitely
relies on the fact that dput() will immediately reclaim such dentries.
However when some leaf dentry isn't marked as disconnected, as in the
scenario described above, the reclaim doesn't happen and the dentries
are "leaked". Memory reclaim can eventually reclaim them but otherwise
they stay in memory and if umount comes first, we hit infamous "Busy
inodes after unmount" bug. Make sure all dentries created under a
disconnected parent are marked as disconnected as well.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f1ee616214cb22410e939d963bbb2349c2570f02 Version: f1ee616214cb22410e939d963bbb2349c2570f02 Version: f1ee616214cb22410e939d963bbb2349c2570f02 Version: f1ee616214cb22410e939d963bbb2349c2570f02 Version: f1ee616214cb22410e939d963bbb2349c2570f02 Version: f1ee616214cb22410e939d963bbb2349c2570f02 Version: f1ee616214cb22410e939d963bbb2349c2570f02 Version: f1ee616214cb22410e939d963bbb2349c2570f02 |
||
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CVE-2026-31658 (GCVE-0-2026-31658)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()
When dma_map_single() fails in tse_start_xmit(), the function returns
NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the
stack the packet was consumed, the skb is never freed, leaking memory
on every DMA mapping failure.
Add dev_kfree_skb_any() before returning to properly free the skb.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a Version: bbd2190ce96d8fce031f0526c1f970b68adc9d1a |
||
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CVE-2026-22994 (GCVE-0-2026-22994)
Vulnerability from cvelistv5
Published
2026-01-23 15:24
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix reference count leak in bpf_prog_test_run_xdp()
syzbot is reporting
unregister_netdevice: waiting for sit0 to become free. Usage count = 2
problem. A debug printk() patch found that a refcount is obtained at
xdp_convert_md_to_buff() from bpf_prog_test_run_xdp().
According to commit ec94670fcb3b ("bpf: Support specifying ingress via
xdp_md context in BPF_PROG_TEST_RUN"), the refcount obtained by
xdp_convert_md_to_buff() will be released by xdp_convert_buff_to_md().
Therefore, we can consider that the error handling path introduced by
commit 1c1949982524 ("bpf: introduce frags support to
bpf_prog_test_run_xdp()") forgot to call xdp_convert_buff_to_md().
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-31447 (GCVE-0-2026-31447)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: reject mount if bigalloc with s_first_data_block != 0
bigalloc with s_first_data_block != 0 is not supported, reject mounting
it.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 281b59959707dfae03ce038cdf231bf4904e170c Version: 281b59959707dfae03ce038cdf231bf4904e170c Version: 281b59959707dfae03ce038cdf231bf4904e170c Version: 281b59959707dfae03ce038cdf231bf4904e170c Version: 281b59959707dfae03ce038cdf231bf4904e170c Version: 281b59959707dfae03ce038cdf231bf4904e170c Version: 281b59959707dfae03ce038cdf231bf4904e170c Version: 281b59959707dfae03ce038cdf231bf4904e170c |
||
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CVE-2025-15467 (GCVE-0-2025-15467)
Vulnerability from cvelistv5
Published
2026-01-27 16:01
Modified
2026-08-24 12:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with
maliciously crafted AEAD parameters can trigger a stack buffer overflow.
Impact summary: A stack buffer overflow may lead to a crash, causing Denial
of Service, or potentially remote code execution.
When parsing CMS (Auth)EnvelopedData structures that use AEAD ciphers such as
AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is
copied into a fixed-size stack buffer without verifying that its length fits
the destination. An attacker can supply a crafted CMS message with an
oversized IV, causing a stack-based out-of-bounds write before any
authentication or tag verification occurs.
Applications and services that parse untrusted CMS or PKCS#7 content using
AEAD ciphers (e.g., S/MIME (Auth)EnvelopedData with AES-GCM) are vulnerable.
Because the overflow occurs prior to authentication, no valid key material
is required to trigger it. While exploitability to remote code execution
depends on platform and toolchain mitigations, the stack-based write
primitive represents a severe risk.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this
issue, as the CMS implementation is outside the OpenSSL FIPS module
boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue.
OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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{
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{
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{
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CVE-2025-38322 (GCVE-0-2025-38322)
Vulnerability from cvelistv5
Published
2025-07-10 08:14
Modified
2026-07-14 12:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
perf/x86/intel: Fix crash in icl_update_topdown_event()
The perf_fuzzer found a hard-lockup crash on a RaptorLake machine:
Oops: general protection fault, maybe for address 0xffff89aeceab400: 0000
CPU: 23 UID: 0 PID: 0 Comm: swapper/23
Tainted: [W]=WARN
Hardware name: Dell Inc. Precision 9660/0VJ762
RIP: 0010:native_read_pmc+0x7/0x40
Code: cc e8 8d a9 01 00 48 89 03 5b cd cc cc cc cc 0f 1f ...
RSP: 000:fffb03100273de8 EFLAGS: 00010046
....
Call Trace:
<TASK>
icl_update_topdown_event+0x165/0x190
? ktime_get+0x38/0xd0
intel_pmu_read_event+0xf9/0x210
__perf_event_read+0xf9/0x210
CPUs 16-23 are E-core CPUs that don't support the perf metrics feature.
The icl_update_topdown_event() should not be invoked on these CPUs.
It's a regression of commit:
f9bdf1f95339 ("perf/x86/intel: Avoid disable PMU if !cpuc->enabled in sample read")
The bug introduced by that commit is that the is_topdown_event() function
is mistakenly used to replace the is_topdown_count() call to check if the
topdown functions for the perf metrics feature should be invoked.
Fix it.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2026-23083 (GCVE-0-2026-23083)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fou: Don't allow 0 for FOU_ATTR_IPPROTO.
fou_udp_recv() has the same problem mentioned in the previous
patch.
If FOU_ATTR_IPPROTO is set to 0, skb is not freed by
fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu().
Let's forbid 0 for FOU_ATTR_IPPROTO.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 23461551c00628c3f3fe9cf837bf53cf8f212b63 Version: 23461551c00628c3f3fe9cf837bf53cf8f212b63 Version: 23461551c00628c3f3fe9cf837bf53cf8f212b63 Version: 23461551c00628c3f3fe9cf837bf53cf8f212b63 Version: 23461551c00628c3f3fe9cf837bf53cf8f212b63 Version: 23461551c00628c3f3fe9cf837bf53cf8f212b63 Version: 23461551c00628c3f3fe9cf837bf53cf8f212b63 |
||
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfou: Don\u0027t allow 0 for FOU_ATTR_IPPROTO.\n\nfou_udp_recv() has the same problem mentioned in the previous\npatch.\n\nIf FOU_ATTR_IPPROTO is set to 0, skb is not freed by\nfou_udp_recv() nor \"resubmit\"-ted in ip_protocol_deliver_rcu().\n\nLet\u0027s forbid 0 for FOU_ATTR_IPPROTO."
}
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"url": "https://git.kernel.org/stable/c/611ef4bd9c73d9e6d87bed57a635ff1fdd8c91ea"
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"url": "https://git.kernel.org/stable/c/9b75dff8446ec871030d8daf5a69e74f5fe8b956"
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CVE-2026-23452 (GCVE-0-2026-23452)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
PM: runtime: Fix a race condition related to device removal
The following code in pm_runtime_work() may dereference the dev->parent
pointer after the parent device has been freed:
/* Maybe the parent is now able to suspend. */
if (parent && !parent->power.ignore_children) {
spin_unlock(&dev->power.lock);
spin_lock(&parent->power.lock);
rpm_idle(parent, RPM_ASYNC);
spin_unlock(&parent->power.lock);
spin_lock(&dev->power.lock);
}
Fix this by inserting a flush_work() call in pm_runtime_remove().
Without this patch blktest block/001 triggers the following complaint
sporadically:
BUG: KASAN: slab-use-after-free in lock_acquire+0x70/0x160
Read of size 1 at addr ffff88812bef7198 by task kworker/u553:1/3081
Workqueue: pm pm_runtime_work
Call Trace:
<TASK>
dump_stack_lvl+0x61/0x80
print_address_description.constprop.0+0x8b/0x310
print_report+0xfd/0x1d7
kasan_report+0xd8/0x1d0
__kasan_check_byte+0x42/0x60
lock_acquire.part.0+0x38/0x230
lock_acquire+0x70/0x160
_raw_spin_lock+0x36/0x50
rpm_suspend+0xc6a/0xfe0
rpm_idle+0x578/0x770
pm_runtime_work+0xee/0x120
process_one_work+0xde3/0x1410
worker_thread+0x5eb/0xfe0
kthread+0x37b/0x480
ret_from_fork+0x6cb/0x920
ret_from_fork_asm+0x11/0x20
</TASK>
Allocated by task 4314:
kasan_save_stack+0x2a/0x50
kasan_save_track+0x18/0x40
kasan_save_alloc_info+0x3d/0x50
__kasan_kmalloc+0xa0/0xb0
__kmalloc_noprof+0x311/0x990
scsi_alloc_target+0x122/0xb60 [scsi_mod]
__scsi_scan_target+0x101/0x460 [scsi_mod]
scsi_scan_channel+0x179/0x1c0 [scsi_mod]
scsi_scan_host_selected+0x259/0x2d0 [scsi_mod]
store_scan+0x2d2/0x390 [scsi_mod]
dev_attr_store+0x43/0x80
sysfs_kf_write+0xde/0x140
kernfs_fop_write_iter+0x3ef/0x670
vfs_write+0x506/0x1470
ksys_write+0xfd/0x230
__x64_sys_write+0x76/0xc0
x64_sys_call+0x213/0x1810
do_syscall_64+0xee/0xfc0
entry_SYSCALL_64_after_hwframe+0x4b/0x53
Freed by task 4314:
kasan_save_stack+0x2a/0x50
kasan_save_track+0x18/0x40
kasan_save_free_info+0x3f/0x50
__kasan_slab_free+0x67/0x80
kfree+0x225/0x6c0
scsi_target_dev_release+0x3d/0x60 [scsi_mod]
device_release+0xa3/0x220
kobject_cleanup+0x105/0x3a0
kobject_put+0x72/0xd0
put_device+0x17/0x20
scsi_device_dev_release+0xacf/0x12c0 [scsi_mod]
device_release+0xa3/0x220
kobject_cleanup+0x105/0x3a0
kobject_put+0x72/0xd0
put_device+0x17/0x20
scsi_device_put+0x7f/0xc0 [scsi_mod]
sdev_store_delete+0xa5/0x120 [scsi_mod]
dev_attr_store+0x43/0x80
sysfs_kf_write+0xde/0x140
kernfs_fop_write_iter+0x3ef/0x670
vfs_write+0x506/0x1470
ksys_write+0xfd/0x230
__x64_sys_write+0x76/0xc0
x64_sys_call+0x213/0x1810
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 Version: 5e928f77a09a07f9dd595bb8a489965d69a83458 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM: runtime: Fix a race condition related to device removal\n\nThe following code in pm_runtime_work() may dereference the dev-\u003eparent\npointer after the parent device has been freed:\n\n\t/* Maybe the parent is now able to suspend. */\n\tif (parent \u0026\u0026 !parent-\u003epower.ignore_children) {\n\t\tspin_unlock(\u0026dev-\u003epower.lock);\n\n\t\tspin_lock(\u0026parent-\u003epower.lock);\n\t\trpm_idle(parent, RPM_ASYNC);\n\t\tspin_unlock(\u0026parent-\u003epower.lock);\n\n\t\tspin_lock(\u0026dev-\u003epower.lock);\n\t}\n\nFix this by inserting a flush_work() call in pm_runtime_remove().\n\nWithout this patch blktest block/001 triggers the following complaint\nsporadically:\n\nBUG: KASAN: slab-use-after-free in lock_acquire+0x70/0x160\nRead of size 1 at addr ffff88812bef7198 by task kworker/u553:1/3081\nWorkqueue: pm pm_runtime_work\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x61/0x80\n print_address_description.constprop.0+0x8b/0x310\n print_report+0xfd/0x1d7\n kasan_report+0xd8/0x1d0\n __kasan_check_byte+0x42/0x60\n lock_acquire.part.0+0x38/0x230\n lock_acquire+0x70/0x160\n _raw_spin_lock+0x36/0x50\n rpm_suspend+0xc6a/0xfe0\n rpm_idle+0x578/0x770\n pm_runtime_work+0xee/0x120\n process_one_work+0xde3/0x1410\n worker_thread+0x5eb/0xfe0\n kthread+0x37b/0x480\n ret_from_fork+0x6cb/0x920\n ret_from_fork_asm+0x11/0x20\n \u003c/TASK\u003e\n\nAllocated by task 4314:\n kasan_save_stack+0x2a/0x50\n kasan_save_track+0x18/0x40\n kasan_save_alloc_info+0x3d/0x50\n __kasan_kmalloc+0xa0/0xb0\n __kmalloc_noprof+0x311/0x990\n scsi_alloc_target+0x122/0xb60 [scsi_mod]\n __scsi_scan_target+0x101/0x460 [scsi_mod]\n scsi_scan_channel+0x179/0x1c0 [scsi_mod]\n scsi_scan_host_selected+0x259/0x2d0 [scsi_mod]\n store_scan+0x2d2/0x390 [scsi_mod]\n dev_attr_store+0x43/0x80\n sysfs_kf_write+0xde/0x140\n kernfs_fop_write_iter+0x3ef/0x670\n vfs_write+0x506/0x1470\n ksys_write+0xfd/0x230\n __x64_sys_write+0x76/0xc0\n x64_sys_call+0x213/0x1810\n do_syscall_64+0xee/0xfc0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\nFreed by task 4314:\n kasan_save_stack+0x2a/0x50\n kasan_save_track+0x18/0x40\n kasan_save_free_info+0x3f/0x50\n __kasan_slab_free+0x67/0x80\n kfree+0x225/0x6c0\n scsi_target_dev_release+0x3d/0x60 [scsi_mod]\n device_release+0xa3/0x220\n kobject_cleanup+0x105/0x3a0\n kobject_put+0x72/0xd0\n put_device+0x17/0x20\n scsi_device_dev_release+0xacf/0x12c0 [scsi_mod]\n device_release+0xa3/0x220\n kobject_cleanup+0x105/0x3a0\n kobject_put+0x72/0xd0\n put_device+0x17/0x20\n scsi_device_put+0x7f/0xc0 [scsi_mod]\n sdev_store_delete+0xa5/0x120 [scsi_mod]\n dev_attr_store+0x43/0x80\n sysfs_kf_write+0xde/0x140\n kernfs_fop_write_iter+0x3ef/0x670\n vfs_write+0x506/0x1470\n ksys_write+0xfd/0x230\n __x64_sys_write+0x76/0xc0\n x64_sys_call+0x213/0x1810"
}
],
"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"references": [
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"title": "PM: runtime: Fix a race condition related to device removal",
"x_generator": {
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}
}
},
"cveMetadata": {
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"dateReserved": "2026-01-13T15:37:46.020Z",
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CVE-2026-23379 (GCVE-0-2026-23379)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: ets: fix divide by zero in the offload path
Offloading ETS requires computing each class' WRR weight: this is done by
averaging over the sums of quanta as 'q_sum' and 'q_psum'. Using unsigned
int, the same integer size as the individual DRR quanta, can overflow and
even cause division by zero, like it happened in the following splat:
Oops: divide error: 0000 [#1] SMP PTI
CPU: 13 UID: 0 PID: 487 Comm: tc Tainted: G E 6.19.0-virtme #45 PREEMPT(full)
Tainted: [E]=UNSIGNED_MODULE
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
RIP: 0010:ets_offload_change+0x11f/0x290 [sch_ets]
Code: e4 45 31 ff eb 03 41 89 c7 41 89 cb 89 ce 83 f9 0f 0f 87 b7 00 00 00 45 8b 08 31 c0 45 01 cc 45 85 c9 74 09 41 6b c4 64 31 d2 <41> f7 f2 89 c2 44 29 fa 45 89 df 41 83 fb 0f 0f 87 c7 00 00 00 44
RSP: 0018:ffffd0a180d77588 EFLAGS: 00010246
RAX: 00000000ffffff38 RBX: ffff8d3d482ca000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffd0a180d77660
RBP: ffffd0a180d77690 R08: ffff8d3d482ca2d8 R09: 00000000fffffffe
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffe
R13: ffff8d3d472f2000 R14: 0000000000000003 R15: 0000000000000000
FS: 00007f440b6c2740(0000) GS:ffff8d3dc9803000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000003cdd2000 CR3: 0000000007b58002 CR4: 0000000000172ef0
Call Trace:
<TASK>
ets_qdisc_change+0x870/0xf40 [sch_ets]
qdisc_create+0x12b/0x540
tc_modify_qdisc+0x6d7/0xbd0
rtnetlink_rcv_msg+0x168/0x6b0
netlink_rcv_skb+0x5c/0x110
netlink_unicast+0x1d6/0x2b0
netlink_sendmsg+0x22e/0x470
____sys_sendmsg+0x38a/0x3c0
___sys_sendmsg+0x99/0xe0
__sys_sendmsg+0x8a/0xf0
do_syscall_64+0x111/0xf80
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f440b81c77e
Code: 4d 89 d8 e8 d4 bc 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
RSP: 002b:00007fff951e4c10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000481820 RCX: 00007f440b81c77e
RDX: 0000000000000000 RSI: 00007fff951e4cd0 RDI: 0000000000000003
RBP: 00007fff951e4c20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff951f4fa8
R13: 00000000699ddede R14: 00007f440bb01000 R15: 0000000000486980
</TASK>
Modules linked in: sch_ets(E) netdevsim(E)
---[ end trace 0000000000000000 ]---
RIP: 0010:ets_offload_change+0x11f/0x290 [sch_ets]
Code: e4 45 31 ff eb 03 41 89 c7 41 89 cb 89 ce 83 f9 0f 0f 87 b7 00 00 00 45 8b 08 31 c0 45 01 cc 45 85 c9 74 09 41 6b c4 64 31 d2 <41> f7 f2 89 c2 44 29 fa 45 89 df 41 83 fb 0f 0f 87 c7 00 00 00 44
RSP: 0018:ffffd0a180d77588 EFLAGS: 00010246
RAX: 00000000ffffff38 RBX: ffff8d3d482ca000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffd0a180d77660
RBP: ffffd0a180d77690 R08: ffff8d3d482ca2d8 R09: 00000000fffffffe
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffe
R13: ffff8d3d472f2000 R14: 0000000000000003 R15: 0000000000000000
FS: 00007f440b6c2740(0000) GS:ffff8d3dc9803000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000003cdd2000 CR3: 0000000007b58002 CR4: 0000000000172ef0
Kernel panic - not syncing: Fatal exception
Kernel Offset: 0x30000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
---[ end Kernel panic - not syncing: Fatal exception ]---
Fix this using 64-bit integers for 'q_sum' and 'q_psum'.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 Version: d35eb52bd2ac7557b62bda52668f2e64dde2cf90 |
||
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: ets: fix divide by zero in the offload path\n\nOffloading ETS requires computing each class\u0027 WRR weight: this is done by\naveraging over the sums of quanta as \u0027q_sum\u0027 and \u0027q_psum\u0027. Using unsigned\nint, the same integer size as the individual DRR quanta, can overflow and\neven cause division by zero, like it happened in the following splat:\n\n Oops: divide error: 0000 [#1] SMP PTI\n CPU: 13 UID: 0 PID: 487 Comm: tc Tainted: G E 6.19.0-virtme #45 PREEMPT(full)\n Tainted: [E]=UNSIGNED_MODULE\n Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n RIP: 0010:ets_offload_change+0x11f/0x290 [sch_ets]\n Code: e4 45 31 ff eb 03 41 89 c7 41 89 cb 89 ce 83 f9 0f 0f 87 b7 00 00 00 45 8b 08 31 c0 45 01 cc 45 85 c9 74 09 41 6b c4 64 31 d2 \u003c41\u003e f7 f2 89 c2 44 29 fa 45 89 df 41 83 fb 0f 0f 87 c7 00 00 00 44\n RSP: 0018:ffffd0a180d77588 EFLAGS: 00010246\n RAX: 00000000ffffff38 RBX: ffff8d3d482ca000 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffd0a180d77660\n RBP: ffffd0a180d77690 R08: ffff8d3d482ca2d8 R09: 00000000fffffffe\n R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffe\n R13: ffff8d3d472f2000 R14: 0000000000000003 R15: 0000000000000000\n FS: 00007f440b6c2740(0000) GS:ffff8d3dc9803000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000003cdd2000 CR3: 0000000007b58002 CR4: 0000000000172ef0\n Call Trace:\n \u003cTASK\u003e\n ets_qdisc_change+0x870/0xf40 [sch_ets]\n qdisc_create+0x12b/0x540\n tc_modify_qdisc+0x6d7/0xbd0\n rtnetlink_rcv_msg+0x168/0x6b0\n netlink_rcv_skb+0x5c/0x110\n netlink_unicast+0x1d6/0x2b0\n netlink_sendmsg+0x22e/0x470\n ____sys_sendmsg+0x38a/0x3c0\n ___sys_sendmsg+0x99/0xe0\n __sys_sendmsg+0x8a/0xf0\n do_syscall_64+0x111/0xf80\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7f440b81c77e\n Code: 4d 89 d8 e8 d4 bc 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 \u003cc9\u003e c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa\n RSP: 002b:00007fff951e4c10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e\n RAX: ffffffffffffffda RBX: 0000000000481820 RCX: 00007f440b81c77e\n RDX: 0000000000000000 RSI: 00007fff951e4cd0 RDI: 0000000000000003\n RBP: 00007fff951e4c20 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff951f4fa8\n R13: 00000000699ddede R14: 00007f440bb01000 R15: 0000000000486980\n \u003c/TASK\u003e\n Modules linked in: sch_ets(E) netdevsim(E)\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:ets_offload_change+0x11f/0x290 [sch_ets]\n Code: e4 45 31 ff eb 03 41 89 c7 41 89 cb 89 ce 83 f9 0f 0f 87 b7 00 00 00 45 8b 08 31 c0 45 01 cc 45 85 c9 74 09 41 6b c4 64 31 d2 \u003c41\u003e f7 f2 89 c2 44 29 fa 45 89 df 41 83 fb 0f 0f 87 c7 00 00 00 44\n RSP: 0018:ffffd0a180d77588 EFLAGS: 00010246\n RAX: 00000000ffffff38 RBX: ffff8d3d482ca000 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffd0a180d77660\n RBP: ffffd0a180d77690 R08: ffff8d3d482ca2d8 R09: 00000000fffffffe\n R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffe\n R13: ffff8d3d472f2000 R14: 0000000000000003 R15: 0000000000000000\n FS: 00007f440b6c2740(0000) GS:ffff8d3dc9803000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000003cdd2000 CR3: 0000000007b58002 CR4: 0000000000172ef0\n Kernel panic - not syncing: Fatal exception\n Kernel Offset: 0x30000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)\n ---[ end Kernel panic - not syncing: Fatal exception ]---\n\nFix this using 64-bit integers for \u0027q_sum\u0027 and \u0027q_psum\u0027."
}
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"dateUpdated": "2026-05-11T22:05:44.284Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"datePublished": "2026-03-25T10:27:58.659Z",
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CVE-2025-68206 (GCVE-0-2025-68206)
Vulnerability from cvelistv5
Published
2025-12-16 13:48
Modified
2026-08-05 12:10
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_ct: add seqadj extension for natted connections
Sequence adjustment may be required for FTP traffic with PASV/EPSV modes.
due to need to re-write packet payload (IP, port) on the ftp control
connection. This can require changes to the TCP length and expected
seq / ack_seq.
The easiest way to reproduce this issue is with PASV mode.
Example ruleset:
table inet ftp_nat {
ct helper ftp_helper {
type "ftp" protocol tcp
l3proto inet
}
chain prerouting {
type filter hook prerouting priority 0; policy accept;
tcp dport 21 ct state new ct helper set "ftp_helper"
}
}
table ip nat {
chain prerouting {
type nat hook prerouting priority -100; policy accept;
tcp dport 21 dnat ip prefix to ip daddr map {
192.168.100.1 : 192.168.13.2/32 }
}
chain postrouting {
type nat hook postrouting priority 100 ; policy accept;
tcp sport 21 snat ip prefix to ip saddr map {
192.168.13.2 : 192.168.100.1/32 }
}
}
Note that the ftp helper gets assigned *after* the dnat setup.
The inverse (nat after helper assign) is handled by an existing
check in nf_nat_setup_info() and will not show the problem.
Topoloy:
+-------------------+ +----------------------------------+
| FTP: 192.168.13.2 | <-> | NAT: 192.168.13.3, 192.168.100.1 |
+-------------------+ +----------------------------------+
|
+-----------------------+
| Client: 192.168.100.2 |
+-----------------------+
ftp nat changes do not work as expected in this case:
Connected to 192.168.100.1.
[..]
ftp> epsv
EPSV/EPRT on IPv4 off.
ftp> ls
227 Entering passive mode (192,168,100,1,209,129).
421 Service not available, remote server has closed connection.
Kernel logs:
Missing nfct_seqadj_ext_add() setup call
WARNING: CPU: 1 PID: 0 at net/netfilter/nf_conntrack_seqadj.c:41
[..]
__nf_nat_mangle_tcp_packet+0x100/0x160 [nf_nat]
nf_nat_ftp+0x142/0x280 [nf_nat_ftp]
help+0x4d1/0x880 [nf_conntrack_ftp]
nf_confirm+0x122/0x2e0 [nf_conntrack]
nf_hook_slow+0x3c/0xb0
..
Fix this by adding the required extension when a conntrack helper is assigned
to a connection that has a nat binding.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1a64edf54f55d7956cf5a0d95898bc1f84f9b818 Version: 1a64edf54f55d7956cf5a0d95898bc1f84f9b818 Version: 1a64edf54f55d7956cf5a0d95898bc1f84f9b818 Version: 1a64edf54f55d7956cf5a0d95898bc1f84f9b818 Version: 1a64edf54f55d7956cf5a0d95898bc1f84f9b818 Version: 1a64edf54f55d7956cf5a0d95898bc1f84f9b818 Version: 1a64edf54f55d7956cf5a0d95898bc1f84f9b818 |
||
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CVE-2026-23414 (GCVE-0-2026-23414)
Vulnerability from cvelistv5
Published
2026-04-02 11:40
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tls: Purge async_hold in tls_decrypt_async_wait()
The async_hold queue pins encrypted input skbs while
the AEAD engine references their scatterlist data. Once
tls_decrypt_async_wait() returns, every AEAD operation
has completed and the engine no longer references those
skbs, so they can be freed unconditionally.
A subsequent patch adds batch async decryption to
tls_sw_read_sock(), introducing a new call site that
must drain pending AEAD operations and release held
skbs. Move __skb_queue_purge(&ctx->async_hold) into
tls_decrypt_async_wait() so the purge is centralized
and every caller -- recvmsg's drain path, the -EBUSY
fallback in tls_do_decryption(), and the new read_sock
batch path -- releases held skbs on synchronization
without each site managing the purge independently.
This fixes a leak when tls_strp_msg_hold() fails part-way through,
after having added some cloned skbs to the async_hold
queue. tls_decrypt_sg() will then call tls_decrypt_async_wait() to
process all pending decrypts, and drop back to synchronous mode, but
tls_sw_recvmsg() only flushes the async_hold queue when one record has
been processed in "fully-async" mode, which may not be the case here.
[pabeni@redhat.com: added leak comment]
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9f83fd0c179e0f458e824e417f9d5ad53443f685 Version: c61d4368197d65c4809d9271f3b85325a600586a Version: 39dec4ea3daf77f684308576baf483b55ca7f160 Version: b8a6ff84abbcbbc445463de58704686011edc8e1 Version: b8a6ff84abbcbbc445463de58704686011edc8e1 Version: b8a6ff84abbcbbc445463de58704686011edc8e1 Version: 4fc109d0ab196bd943b7451276690fb6bb48c2e0 Version: 6.1.158 ≤ Version: 6.6.114 ≤ Version: 6.12.55 ≤ Version: 6.17.5 ≤ |
||
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CVE-2025-71186 (GCVE-0-2025-71186)
Vulnerability from cvelistv5
Published
2026-01-31 11:41
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: stm32: dmamux: fix device leak on route allocation
Make sure to drop the reference taken when looking up the DMA mux
platform device during route allocation.
Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: df7e762db5f6c8dbd9e480f1c9ef9851de346657 Version: df7e762db5f6c8dbd9e480f1c9ef9851de346657 Version: df7e762db5f6c8dbd9e480f1c9ef9851de346657 Version: df7e762db5f6c8dbd9e480f1c9ef9851de346657 Version: df7e762db5f6c8dbd9e480f1c9ef9851de346657 Version: df7e762db5f6c8dbd9e480f1c9ef9851de346657 Version: df7e762db5f6c8dbd9e480f1c9ef9851de346657 |
||
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CVE-2026-31504 (GCVE-0-2026-31504)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-08-05 12:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix fanout UAF in packet_release() via NETDEV_UP race
`packet_release()` has a race window where `NETDEV_UP` can re-register a
socket into a fanout group's `arr[]` array. The re-registration is not
cleaned up by `fanout_release()`, leaving a dangling pointer in the fanout
array.
`packet_release()` does NOT zero `po->num` in its `bind_lock` section.
After releasing `bind_lock`, `po->num` is still non-zero and `po->ifindex`
still matches the bound device. A concurrent `packet_notifier(NETDEV_UP)`
that already found the socket in `sklist` can re-register the hook.
For fanout sockets, this re-registration calls `__fanout_link(sk, po)`
which adds the socket back into `f->arr[]` and increments `f->num_members`,
but does NOT increment `f->sk_ref`.
The fix sets `po->num` to zero in `packet_release` while `bind_lock` is
held to prevent NETDEV_UP from linking, preventing the race window.
This bug was found following an additional audit with Claude Code based
on CVE-2025-38617.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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CVE-2026-23368 (GCVE-0-2026-23368)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: phy: register phy led_triggers during probe to avoid AB-BA deadlock
There is an AB-BA deadlock when both LEDS_TRIGGER_NETDEV and
LED_TRIGGER_PHY are enabled:
[ 1362.049207] [<8054e4b8>] led_trigger_register+0x5c/0x1fc <-- Trying to get lock "triggers_list_lock" via down_write(&triggers_list_lock);
[ 1362.054536] [<80662830>] phy_led_triggers_register+0xd0/0x234
[ 1362.060329] [<8065e200>] phy_attach_direct+0x33c/0x40c
[ 1362.065489] [<80651fc4>] phylink_fwnode_phy_connect+0x15c/0x23c
[ 1362.071480] [<8066ee18>] mtk_open+0x7c/0xba0
[ 1362.075849] [<806d714c>] __dev_open+0x280/0x2b0
[ 1362.080384] [<806d7668>] __dev_change_flags+0x244/0x24c
[ 1362.085598] [<806d7698>] dev_change_flags+0x28/0x78
[ 1362.090528] [<807150e4>] dev_ioctl+0x4c0/0x654 <-- Hold lock "rtnl_mutex" by calling rtnl_lock();
[ 1362.094985] [<80694360>] sock_ioctl+0x2f4/0x4e0
[ 1362.099567] [<802e9c4c>] sys_ioctl+0x32c/0xd8c
[ 1362.104022] [<80014504>] syscall_common+0x34/0x58
Here LED_TRIGGER_PHY is registering LED triggers during phy_attach
while holding RTNL and then taking triggers_list_lock.
[ 1362.191101] [<806c2640>] register_netdevice_notifier+0x60/0x168 <-- Trying to get lock "rtnl_mutex" via rtnl_lock();
[ 1362.197073] [<805504ac>] netdev_trig_activate+0x194/0x1e4
[ 1362.202490] [<8054e28c>] led_trigger_set+0x1d4/0x360 <-- Hold lock "triggers_list_lock" by down_read(&triggers_list_lock);
[ 1362.207511] [<8054eb38>] led_trigger_write+0xd8/0x14c
[ 1362.212566] [<80381d98>] sysfs_kf_bin_write+0x80/0xbc
[ 1362.217688] [<8037fcd8>] kernfs_fop_write_iter+0x17c/0x28c
[ 1362.223174] [<802cbd70>] vfs_write+0x21c/0x3c4
[ 1362.227712] [<802cc0c4>] ksys_write+0x78/0x12c
[ 1362.232164] [<80014504>] syscall_common+0x34/0x58
Here LEDS_TRIGGER_NETDEV is being enabled on an LED. It first takes
triggers_list_lock and then RTNL. A classical AB-BA deadlock.
phy_led_triggers_registers() does not require the RTNL, it does not
make any calls into the network stack which require protection. There
is also no requirement the PHY has been attached to a MAC, the
triggers only make use of phydev state. This allows the call to
phy_led_triggers_registers() to be placed elsewhere. PHY probe() and
release() don't hold RTNL, so solving the AB-BA deadlock.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Version: 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 |
||
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: register phy led_triggers during probe to avoid AB-BA deadlock\n\nThere is an AB-BA deadlock when both LEDS_TRIGGER_NETDEV and\nLED_TRIGGER_PHY are enabled:\n\n[ 1362.049207] [\u003c8054e4b8\u003e] led_trigger_register+0x5c/0x1fc \u003c-- Trying to get lock \"triggers_list_lock\" via down_write(\u0026triggers_list_lock);\n[ 1362.054536] [\u003c80662830\u003e] phy_led_triggers_register+0xd0/0x234\n[ 1362.060329] [\u003c8065e200\u003e] phy_attach_direct+0x33c/0x40c\n[ 1362.065489] [\u003c80651fc4\u003e] phylink_fwnode_phy_connect+0x15c/0x23c\n[ 1362.071480] [\u003c8066ee18\u003e] mtk_open+0x7c/0xba0\n[ 1362.075849] [\u003c806d714c\u003e] __dev_open+0x280/0x2b0\n[ 1362.080384] [\u003c806d7668\u003e] __dev_change_flags+0x244/0x24c\n[ 1362.085598] [\u003c806d7698\u003e] dev_change_flags+0x28/0x78\n[ 1362.090528] [\u003c807150e4\u003e] dev_ioctl+0x4c0/0x654 \u003c-- Hold lock \"rtnl_mutex\" by calling rtnl_lock();\n[ 1362.094985] [\u003c80694360\u003e] sock_ioctl+0x2f4/0x4e0\n[ 1362.099567] [\u003c802e9c4c\u003e] sys_ioctl+0x32c/0xd8c\n[ 1362.104022] [\u003c80014504\u003e] syscall_common+0x34/0x58\n\nHere LED_TRIGGER_PHY is registering LED triggers during phy_attach\nwhile holding RTNL and then taking triggers_list_lock.\n\n[ 1362.191101] [\u003c806c2640\u003e] register_netdevice_notifier+0x60/0x168 \u003c-- Trying to get lock \"rtnl_mutex\" via rtnl_lock();\n[ 1362.197073] [\u003c805504ac\u003e] netdev_trig_activate+0x194/0x1e4\n[ 1362.202490] [\u003c8054e28c\u003e] led_trigger_set+0x1d4/0x360 \u003c-- Hold lock \"triggers_list_lock\" by down_read(\u0026triggers_list_lock);\n[ 1362.207511] [\u003c8054eb38\u003e] led_trigger_write+0xd8/0x14c\n[ 1362.212566] [\u003c80381d98\u003e] sysfs_kf_bin_write+0x80/0xbc\n[ 1362.217688] [\u003c8037fcd8\u003e] kernfs_fop_write_iter+0x17c/0x28c\n[ 1362.223174] [\u003c802cbd70\u003e] vfs_write+0x21c/0x3c4\n[ 1362.227712] [\u003c802cc0c4\u003e] ksys_write+0x78/0x12c\n[ 1362.232164] [\u003c80014504\u003e] syscall_common+0x34/0x58\n\nHere LEDS_TRIGGER_NETDEV is being enabled on an LED. It first takes\ntriggers_list_lock and then RTNL. A classical AB-BA deadlock.\n\nphy_led_triggers_registers() does not require the RTNL, it does not\nmake any calls into the network stack which require protection. There\nis also no requirement the PHY has been attached to a MAC, the\ntriggers only make use of phydev state. This allows the call to\nphy_led_triggers_registers() to be placed elsewhere. PHY probe() and\nrelease() don\u0027t hold RTNL, so solving the AB-BA deadlock."
}
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"dateUpdated": "2026-07-14T12:46:44.653Z",
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CVE-2026-23340 (GCVE-0-2026-23340)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs
When shrinking the number of real tx queues,
netif_set_real_num_tx_queues() calls qdisc_reset_all_tx_gt() to flush
qdiscs for queues which will no longer be used.
qdisc_reset_all_tx_gt() currently serializes qdisc_reset() with
qdisc_lock(). However, for lockless qdiscs, the dequeue path is
serialized by qdisc_run_begin/end() using qdisc->seqlock instead, so
qdisc_reset() can run concurrently with __qdisc_run() and free skbs
while they are still being dequeued, leading to UAF.
This can easily be reproduced on e.g. virtio-net by imposing heavy
traffic while frequently changing the number of queue pairs:
iperf3 -ub0 -c $peer -t 0 &
while :; do
ethtool -L eth0 combined 1
ethtool -L eth0 combined 2
done
With KASAN enabled, this leads to reports like:
BUG: KASAN: slab-use-after-free in __qdisc_run+0x133f/0x1760
...
Call Trace:
<TASK>
...
__qdisc_run+0x133f/0x1760
__dev_queue_xmit+0x248f/0x3550
ip_finish_output2+0xa42/0x2110
ip_output+0x1a7/0x410
ip_send_skb+0x2e6/0x480
udp_send_skb+0xb0a/0x1590
udp_sendmsg+0x13c9/0x1fc0
...
</TASK>
Allocated by task 1270 on cpu 5 at 44.558414s:
...
alloc_skb_with_frags+0x84/0x7c0
sock_alloc_send_pskb+0x69a/0x830
__ip_append_data+0x1b86/0x48c0
ip_make_skb+0x1e8/0x2b0
udp_sendmsg+0x13a6/0x1fc0
...
Freed by task 1306 on cpu 3 at 44.558445s:
...
kmem_cache_free+0x117/0x5e0
pfifo_fast_reset+0x14d/0x580
qdisc_reset+0x9e/0x5f0
netif_set_real_num_tx_queues+0x303/0x840
virtnet_set_channels+0x1bf/0x260 [virtio_net]
ethnl_set_channels+0x684/0xae0
ethnl_default_set_doit+0x31a/0x890
...
Serialize qdisc_reset_all_tx_gt() against the lockless dequeue path by
taking qdisc->seqlock for TCQ_F_NOLOCK qdiscs, matching the
serialization model already used by dev_reset_queue().
Additionally clear QDISC_STATE_NON_EMPTY after reset so the qdisc state
reflects an empty queue, avoiding needless re-scheduling.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 Version: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 Version: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 Version: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 Version: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 Version: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 Version: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 |
||
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}
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CVE-2025-21802 (GCVE-0-2025-21802)
Vulnerability from cvelistv5
Published
2025-02-27 20:00
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: fix oops when unload drivers paralleling
When unload hclge driver, it tries to disable sriov first for each
ae_dev node from hnae3_ae_dev_list. If user unloads hns3 driver at
the time, because it removes all the ae_dev nodes, and it may cause
oops.
But we can't simply use hnae3_common_lock for this. Because in the
process flow of pci_disable_sriov(), it will trigger the remove flow
of VF, which will also take hnae3_common_lock.
To fixes it, introduce a new mutex to protect the unload process.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d36b15e3e7b5937cb1f6ac590a85facc3a320642 Version: 0dd8a25f355b4df2d41c08df1716340854c7d4c5 Version: 0dd8a25f355b4df2d41c08df1716340854c7d4c5 Version: 0dd8a25f355b4df2d41c08df1716340854c7d4c5 Version: 0dd8a25f355b4df2d41c08df1716340854c7d4c5 Version: 0dd8a25f355b4df2d41c08df1716340854c7d4c5 Version: 0dd8a25f355b4df2d41c08df1716340854c7d4c5 Version: b06ad258e01389ca3ff13bc180f3fcd6a608f1cd Version: c4b64011e458aa2b246cd4e42012cfd83d2d9a5c Version: 9b5a29f0acefa3eb1dbe2fa302b393eeff64d933 Version: 5.10.76 ≤ Version: 4.19.214 ≤ Version: 5.4.156 ≤ Version: 5.14.15 ≤ |
||
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CVE-2026-23455 (GCVE-0-2026-23455)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()
In DecodeQ931(), the UserUserIE code path reads a 16-bit length from
the packet, then decrements it by 1 to skip the protocol discriminator
byte before passing it to DecodeH323_UserInformation(). If the encoded
length is 0, the decrement wraps to -1, which is then passed as a
large value to the decoder, leading to an out-of-bounds read.
Add a check to ensure len is positive after the decrement.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 |
||
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CVE-2025-40261 (GCVE-0-2025-40261)
Vulnerability from cvelistv5
Published
2025-12-04 16:08
Modified
2026-08-05 12:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvme: nvme-fc: Ensure ->ioerr_work is cancelled in nvme_fc_delete_ctrl()
nvme_fc_delete_assocation() waits for pending I/O to complete before
returning, and an error can cause ->ioerr_work to be queued after
cancel_work_sync() had been called. Move the call to cancel_work_sync() to
be after nvme_fc_delete_association() to ensure ->ioerr_work is not running
when the nvme_fc_ctrl object is freed. Otherwise the following can occur:
[ 1135.911754] list_del corruption, ff2d24c8093f31f8->next is NULL
[ 1135.917705] ------------[ cut here ]------------
[ 1135.922336] kernel BUG at lib/list_debug.c:52!
[ 1135.926784] Oops: invalid opcode: 0000 [#1] SMP NOPTI
[ 1135.931851] CPU: 48 UID: 0 PID: 726 Comm: kworker/u449:23 Kdump: loaded Not tainted 6.12.0 #1 PREEMPT(voluntary)
[ 1135.943490] Hardware name: Dell Inc. PowerEdge R660/0HGTK9, BIOS 2.5.4 01/16/2025
[ 1135.950969] Workqueue: 0x0 (nvme-wq)
[ 1135.954673] RIP: 0010:__list_del_entry_valid_or_report.cold+0xf/0x6f
[ 1135.961041] Code: c7 c7 98 68 72 94 e8 26 45 fe ff 0f 0b 48 c7 c7 70 68 72 94 e8 18 45 fe ff 0f 0b 48 89 fe 48 c7 c7 80 69 72 94 e8 07 45 fe ff <0f> 0b 48 89 d1 48 c7 c7 a0 6a 72 94 48 89 c2 e8 f3 44 fe ff 0f 0b
[ 1135.979788] RSP: 0018:ff579b19482d3e50 EFLAGS: 00010046
[ 1135.985015] RAX: 0000000000000033 RBX: ff2d24c8093f31f0 RCX: 0000000000000000
[ 1135.992148] RDX: 0000000000000000 RSI: ff2d24d6bfa1d0c0 RDI: ff2d24d6bfa1d0c0
[ 1135.999278] RBP: ff2d24c8093f31f8 R08: 0000000000000000 R09: ffffffff951e2b08
[ 1136.006413] R10: ffffffff95122ac8 R11: 0000000000000003 R12: ff2d24c78697c100
[ 1136.013546] R13: fffffffffffffff8 R14: 0000000000000000 R15: ff2d24c78697c0c0
[ 1136.020677] FS: 0000000000000000(0000) GS:ff2d24d6bfa00000(0000) knlGS:0000000000000000
[ 1136.028765] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1136.034510] CR2: 00007fd207f90b80 CR3: 000000163ea22003 CR4: 0000000000f73ef0
[ 1136.041641] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1136.048776] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
[ 1136.055910] PKRU: 55555554
[ 1136.058623] Call Trace:
[ 1136.061074] <TASK>
[ 1136.063179] ? show_trace_log_lvl+0x1b0/0x2f0
[ 1136.067540] ? show_trace_log_lvl+0x1b0/0x2f0
[ 1136.071898] ? move_linked_works+0x4a/0xa0
[ 1136.075998] ? __list_del_entry_valid_or_report.cold+0xf/0x6f
[ 1136.081744] ? __die_body.cold+0x8/0x12
[ 1136.085584] ? die+0x2e/0x50
[ 1136.088469] ? do_trap+0xca/0x110
[ 1136.091789] ? do_error_trap+0x65/0x80
[ 1136.095543] ? __list_del_entry_valid_or_report.cold+0xf/0x6f
[ 1136.101289] ? exc_invalid_op+0x50/0x70
[ 1136.105127] ? __list_del_entry_valid_or_report.cold+0xf/0x6f
[ 1136.110874] ? asm_exc_invalid_op+0x1a/0x20
[ 1136.115059] ? __list_del_entry_valid_or_report.cold+0xf/0x6f
[ 1136.120806] move_linked_works+0x4a/0xa0
[ 1136.124733] worker_thread+0x216/0x3a0
[ 1136.128485] ? __pfx_worker_thread+0x10/0x10
[ 1136.132758] kthread+0xfa/0x240
[ 1136.135904] ? __pfx_kthread+0x10/0x10
[ 1136.139657] ret_from_fork+0x31/0x50
[ 1136.143236] ? __pfx_kthread+0x10/0x10
[ 1136.146988] ret_from_fork_asm+0x1a/0x30
[ 1136.150915] </TASK>
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f1cd8c40936ff2b560e1f35159dd6a4602b558e5 Version: 19fce0470f05031e6af36e49ce222d0f0050d432 Version: 19fce0470f05031e6af36e49ce222d0f0050d432 Version: 19fce0470f05031e6af36e49ce222d0f0050d432 Version: 19fce0470f05031e6af36e49ce222d0f0050d432 Version: 19fce0470f05031e6af36e49ce222d0f0050d432 Version: 19fce0470f05031e6af36e49ce222d0f0050d432 Version: 5.10.9 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: nvme-fc: Ensure -\u003eioerr_work is cancelled in nvme_fc_delete_ctrl()\n\nnvme_fc_delete_assocation() waits for pending I/O to complete before\nreturning, and an error can cause -\u003eioerr_work to be queued after\ncancel_work_sync() had been called. Move the call to cancel_work_sync() to\nbe after nvme_fc_delete_association() to ensure -\u003eioerr_work is not running\nwhen the nvme_fc_ctrl object is freed. Otherwise the following can occur:\n\n[ 1135.911754] list_del corruption, ff2d24c8093f31f8-\u003enext is NULL\n[ 1135.917705] ------------[ cut here ]------------\n[ 1135.922336] kernel BUG at lib/list_debug.c:52!\n[ 1135.926784] Oops: invalid opcode: 0000 [#1] SMP NOPTI\n[ 1135.931851] CPU: 48 UID: 0 PID: 726 Comm: kworker/u449:23 Kdump: loaded Not tainted 6.12.0 #1 PREEMPT(voluntary)\n[ 1135.943490] Hardware name: Dell Inc. PowerEdge R660/0HGTK9, BIOS 2.5.4 01/16/2025\n[ 1135.950969] Workqueue: 0x0 (nvme-wq)\n[ 1135.954673] RIP: 0010:__list_del_entry_valid_or_report.cold+0xf/0x6f\n[ 1135.961041] Code: c7 c7 98 68 72 94 e8 26 45 fe ff 0f 0b 48 c7 c7 70 68 72 94 e8 18 45 fe ff 0f 0b 48 89 fe 48 c7 c7 80 69 72 94 e8 07 45 fe ff \u003c0f\u003e 0b 48 89 d1 48 c7 c7 a0 6a 72 94 48 89 c2 e8 f3 44 fe ff 0f 0b\n[ 1135.979788] RSP: 0018:ff579b19482d3e50 EFLAGS: 00010046\n[ 1135.985015] RAX: 0000000000000033 RBX: ff2d24c8093f31f0 RCX: 0000000000000000\n[ 1135.992148] RDX: 0000000000000000 RSI: ff2d24d6bfa1d0c0 RDI: ff2d24d6bfa1d0c0\n[ 1135.999278] RBP: ff2d24c8093f31f8 R08: 0000000000000000 R09: ffffffff951e2b08\n[ 1136.006413] R10: ffffffff95122ac8 R11: 0000000000000003 R12: ff2d24c78697c100\n[ 1136.013546] R13: fffffffffffffff8 R14: 0000000000000000 R15: ff2d24c78697c0c0\n[ 1136.020677] FS: 0000000000000000(0000) GS:ff2d24d6bfa00000(0000) knlGS:0000000000000000\n[ 1136.028765] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 1136.034510] CR2: 00007fd207f90b80 CR3: 000000163ea22003 CR4: 0000000000f73ef0\n[ 1136.041641] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 1136.048776] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\n[ 1136.055910] PKRU: 55555554\n[ 1136.058623] Call Trace:\n[ 1136.061074] \u003cTASK\u003e\n[ 1136.063179] ? show_trace_log_lvl+0x1b0/0x2f0\n[ 1136.067540] ? show_trace_log_lvl+0x1b0/0x2f0\n[ 1136.071898] ? move_linked_works+0x4a/0xa0\n[ 1136.075998] ? __list_del_entry_valid_or_report.cold+0xf/0x6f\n[ 1136.081744] ? __die_body.cold+0x8/0x12\n[ 1136.085584] ? die+0x2e/0x50\n[ 1136.088469] ? do_trap+0xca/0x110\n[ 1136.091789] ? do_error_trap+0x65/0x80\n[ 1136.095543] ? __list_del_entry_valid_or_report.cold+0xf/0x6f\n[ 1136.101289] ? exc_invalid_op+0x50/0x70\n[ 1136.105127] ? __list_del_entry_valid_or_report.cold+0xf/0x6f\n[ 1136.110874] ? asm_exc_invalid_op+0x1a/0x20\n[ 1136.115059] ? __list_del_entry_valid_or_report.cold+0xf/0x6f\n[ 1136.120806] move_linked_works+0x4a/0xa0\n[ 1136.124733] worker_thread+0x216/0x3a0\n[ 1136.128485] ? __pfx_worker_thread+0x10/0x10\n[ 1136.132758] kthread+0xfa/0x240\n[ 1136.135904] ? __pfx_kthread+0x10/0x10\n[ 1136.139657] ret_from_fork+0x31/0x50\n[ 1136.143236] ? __pfx_kthread+0x10/0x10\n[ 1136.146988] ret_from_fork_asm+0x1a/0x30\n[ 1136.150915] \u003c/TASK\u003e"
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"value": "AV:N - The race is driven by data and events from the remote NVMe-oF/FC peer \u2014 `nvme_fc_fcpio_done()` queues `-\u003eioerr_work` on any transport-detected I/O error (aborted exchange, bad ERSP IU, bad transfer length), and controller teardown itself is remotely inducible via remote-port loss/LOGO leading to `nvme_fc_unregister_remoteport()` or `dev_loss_tmo` expiry in `nvme_fc_reconnect_or_delete()` calling `nvme_delete_ctrl()`. A malicious or compromised NVMe/FC target (or a peer able to inject frames on the fabric, which may be extended over routed links via FCIP/FCoE) needs no host access to drive both halves.\nAC:L - The attacker controls both sides of the race: it supplies the erroring I/O completions and triggers the association teardown, and during `nvme_fc_delete_association()` every aborted I/O unconditionally re-queues `ioerr_work` (state is DELETING, not RESETTING, so the `check_error` guard passes) after `cancel_work_sync()` has already run, so the work is reliably resurrected whenever I/O is outstanding at delete time.\nPR:N - A remote FC/NVMe-oF peer needs no credentials or privileges on the victim host; the vulnerable path is reached purely through normal transport error completions and fabric port-loss events on an already-established association.\nUI:N - No victim action is required \u2014 connectivity loss and `dev_loss_tmo` expiry delete the controller automatically while in-flight I/O is aborted, with no administrator involvement.\nS:U - The corruption is confined to kernel memory and workqueue state within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed `nvme_fc_ctrl` is read after `kfree()` \u2014 the workqueue dereferences the embedded `work_struct` (`work-\u003efunc`, `work-\u003eentry`) and `nvme_fc_ctrl_ioerr_work()`/`nvme_fc_error_recovery()` read `ctrl-\u003ectrl` state from freed memory, a use-after-free that with slab reuse yields an information-disclosure primitive.\nI:H - The workqueue performs `list_del_init(\u0026work-\u003eentry)` and `move_linked_works()` list manipulation writing into the freed object, and `process_one_work()` loads and calls `work-\u003efunc` from it; reclaiming the slab with sprayed data gives an attacker-controlled indirect call and arbitrary-write primitive.\nA:H - The reported failure is an immediate kernel BUG/oops (`list_del corruption ... kernel BUG at lib/list_debug.c:52` in `move_linked_works()` from a `nvme-wq` worker), i.e. a system panic and loss of the storage path."
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CVE-2026-23456 (GCVE-0-2026-23456)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case
In decode_int(), the CONS case calls get_bits(bs, 2) to read a length
value, then calls get_uint(bs, len) without checking that len bytes
remain in the buffer. The existing boundary check only validates the
2 bits for get_bits(), not the subsequent 1-4 bytes that get_uint()
reads. This allows a malformed H.323/RAS packet to cause a 1-4 byte
slab-out-of-bounds read.
Add a boundary check for len bytes after get_bits() and before
get_uint().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 Version: 5e35941d990123f155b02d5663e51a24f816b6f3 |
||
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CVE-2024-46786 (GCVE-0-2024-46786)
Vulnerability from cvelistv5
Published
2024-09-18 07:12
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
The fscache_cookie_lru_timer is initialized when the fscache module
is inserted, but is not deleted when the fscache module is removed.
If timer_reduce() is called before removing the fscache module,
the fscache_cookie_lru_timer will be added to the timer list of
the current cpu. Afterwards, a use-after-free will be triggered
in the softIRQ after removing the fscache module, as follows:
==================================================================
BUG: unable to handle page fault for address: fffffbfff803c9e9
PF: supervisor read access in kernel mode
PF: error_code(0x0000) - not-present page
PGD 21ffea067 P4D 21ffea067 PUD 21ffe6067 PMD 110a7c067 PTE 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G W 6.11.0-rc3 #855
Tainted: [W]=WARN
RIP: 0010:__run_timer_base.part.0+0x254/0x8a0
Call Trace:
<IRQ>
tmigr_handle_remote_up+0x627/0x810
__walk_groups.isra.0+0x47/0x140
tmigr_handle_remote+0x1fa/0x2f0
handle_softirqs+0x180/0x590
irq_exit_rcu+0x84/0xb0
sysvec_apic_timer_interrupt+0x6e/0x90
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:default_idle+0xf/0x20
default_idle_call+0x38/0x60
do_idle+0x2b5/0x300
cpu_startup_entry+0x54/0x60
start_secondary+0x20d/0x280
common_startup_64+0x13e/0x148
</TASK>
Modules linked in: [last unloaded: netfs]
==================================================================
Therefore delete fscache_cookie_lru_timer when removing the fscahe module.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-23087 (GCVE-0-2026-23087)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: xen: scsiback: Fix potential memory leak in scsiback_remove()
Memory allocated for struct vscsiblk_info in scsiback_probe() is not
freed in scsiback_remove() leading to potential memory leaks on remove,
as well as in the scsiback_probe() error paths. Fix that by freeing it
in scsiback_remove().
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2025-37909 (GCVE-0-2025-37909)
Vulnerability from cvelistv5
Published
2025-05-20 15:21
Modified
2026-07-14 12:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: lan743x: Fix memleak issue when GSO enabled
Always map the `skb` to the LS descriptor. Previously skb was
mapped to EXT descriptor when the number of fragments is zero with
GSO enabled. Mapping the skb to EXT descriptor prevents it from
being freed, leading to a memory leak
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 23f0703c125be490f70501b6b24ed5645775c56a Version: 23f0703c125be490f70501b6b24ed5645775c56a Version: 23f0703c125be490f70501b6b24ed5645775c56a Version: 23f0703c125be490f70501b6b24ed5645775c56a Version: 23f0703c125be490f70501b6b24ed5645775c56a Version: 23f0703c125be490f70501b6b24ed5645775c56a Version: 23f0703c125be490f70501b6b24ed5645775c56a Version: 23f0703c125be490f70501b6b24ed5645775c56a |
||
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CVE-2024-36927 (GCVE-0-2024-36927)
Vulnerability from cvelistv5
Published
2024-05-30 15:29
Modified
2026-07-14 12:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv4: Fix uninit-value access in __ip_make_skb()
KMSAN reported uninit-value access in __ip_make_skb() [1]. __ip_make_skb()
tests HDRINCL to know if the skb has icmphdr. However, HDRINCL can cause a
race condition. If calling setsockopt(2) with IP_HDRINCL changes HDRINCL
while __ip_make_skb() is running, the function will access icmphdr in the
skb even if it is not included. This causes the issue reported by KMSAN.
Check FLOWI_FLAG_KNOWN_NH on fl4->flowi4_flags instead of testing HDRINCL
on the socket.
Also, fl4->fl4_icmp_type and fl4->fl4_icmp_code are not initialized. These
are union in struct flowi4 and are implicitly initialized by
flowi4_init_output(), but we should not rely on specific union layout.
Initialize these explicitly in raw_sendmsg().
[1]
BUG: KMSAN: uninit-value in __ip_make_skb+0x2b74/0x2d20 net/ipv4/ip_output.c:1481
__ip_make_skb+0x2b74/0x2d20 net/ipv4/ip_output.c:1481
ip_finish_skb include/net/ip.h:243 [inline]
ip_push_pending_frames+0x4c/0x5c0 net/ipv4/ip_output.c:1508
raw_sendmsg+0x2381/0x2690 net/ipv4/raw.c:654
inet_sendmsg+0x27b/0x2a0 net/ipv4/af_inet.c:851
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x274/0x3c0 net/socket.c:745
__sys_sendto+0x62c/0x7b0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0x130/0x200 net/socket.c:2199
do_syscall_64+0xd8/0x1f0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at:
slab_post_alloc_hook mm/slub.c:3804 [inline]
slab_alloc_node mm/slub.c:3845 [inline]
kmem_cache_alloc_node+0x5f6/0xc50 mm/slub.c:3888
kmalloc_reserve+0x13c/0x4a0 net/core/skbuff.c:577
__alloc_skb+0x35a/0x7c0 net/core/skbuff.c:668
alloc_skb include/linux/skbuff.h:1318 [inline]
__ip_append_data+0x49ab/0x68c0 net/ipv4/ip_output.c:1128
ip_append_data+0x1e7/0x260 net/ipv4/ip_output.c:1365
raw_sendmsg+0x22b1/0x2690 net/ipv4/raw.c:648
inet_sendmsg+0x27b/0x2a0 net/ipv4/af_inet.c:851
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x274/0x3c0 net/socket.c:745
__sys_sendto+0x62c/0x7b0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0x130/0x200 net/socket.c:2199
do_syscall_64+0xd8/0x1f0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
CPU: 1 PID: 15709 Comm: syz-executor.7 Not tainted 6.8.0-11567-gb3603fcb79b1 #25
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 566785731c6dd41ef815196ddc36d1ae30a63763 Version: a54ec573d9b81b05d368f8e6edc1b3e49f688658 Version: fc60067260c20da8cddcf968bec47416f3e2cde2 Version: 99e5acae193e369b71217efe6f1dad42f3f18815 Version: 99e5acae193e369b71217efe6f1dad42f3f18815 Version: 99e5acae193e369b71217efe6f1dad42f3f18815 Version: dc4e3bb0710178c8d03fc43064e0a71fe7440cdd Version: 022ea4374c319690c804706bda9dc42946d1556d Version: 27c468ec1af113f6ae94fb5378f65e6038bd16e7 Version: 32a5a13d556e4f804e5a447a08c70b172d600707 Version: 9e3c96aed8fe32907e0a4bca05aad457629a820c Version: 5.10.180 ≤ Version: 5.15.111 ≤ Version: 6.1.28 ≤ Version: 4.14.315 ≤ Version: 4.19.283 ≤ Version: 5.4.243 ≤ Version: 6.2.15 ≤ Version: 6.3.2 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: Fix uninit-value access in __ip_make_skb()\n\nKMSAN reported uninit-value access in __ip_make_skb() [1]. __ip_make_skb()\ntests HDRINCL to know if the skb has icmphdr. However, HDRINCL can cause a\nrace condition. If calling setsockopt(2) with IP_HDRINCL changes HDRINCL\nwhile __ip_make_skb() is running, the function will access icmphdr in the\nskb even if it is not included. This causes the issue reported by KMSAN.\n\nCheck FLOWI_FLAG_KNOWN_NH on fl4-\u003eflowi4_flags instead of testing HDRINCL\non the socket.\n\nAlso, fl4-\u003efl4_icmp_type and fl4-\u003efl4_icmp_code are not initialized. These\nare union in struct flowi4 and are implicitly initialized by\nflowi4_init_output(), but we should not rely on specific union layout.\n\nInitialize these explicitly in raw_sendmsg().\n\n[1]\nBUG: KMSAN: uninit-value in __ip_make_skb+0x2b74/0x2d20 net/ipv4/ip_output.c:1481\n __ip_make_skb+0x2b74/0x2d20 net/ipv4/ip_output.c:1481\n ip_finish_skb include/net/ip.h:243 [inline]\n ip_push_pending_frames+0x4c/0x5c0 net/ipv4/ip_output.c:1508\n raw_sendmsg+0x2381/0x2690 net/ipv4/raw.c:654\n inet_sendmsg+0x27b/0x2a0 net/ipv4/af_inet.c:851\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x274/0x3c0 net/socket.c:745\n __sys_sendto+0x62c/0x7b0 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x130/0x200 net/socket.c:2199\n do_syscall_64+0xd8/0x1f0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x5f6/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13c/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35a/0x7c0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n __ip_append_data+0x49ab/0x68c0 net/ipv4/ip_output.c:1128\n ip_append_data+0x1e7/0x260 net/ipv4/ip_output.c:1365\n raw_sendmsg+0x22b1/0x2690 net/ipv4/raw.c:648\n inet_sendmsg+0x27b/0x2a0 net/ipv4/af_inet.c:851\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x274/0x3c0 net/socket.c:745\n __sys_sendto+0x62c/0x7b0 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x130/0x200 net/socket.c:2199\n do_syscall_64+0xd8/0x1f0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nCPU: 1 PID: 15709 Comm: syz-executor.7 Not tainted 6.8.0-11567-gb3603fcb79b1 #25\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014"
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CVE-2025-37917 (GCVE-0-2025-37917)
Vulnerability from cvelistv5
Published
2025-05-20 15:21
Modified
2026-08-05 11:58
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: mtk-star-emac: fix spinlock recursion issues on rx/tx poll
Use spin_lock_irqsave and spin_unlock_irqrestore instead of spin_lock
and spin_unlock in mtk_star_emac driver to avoid spinlock recursion
occurrence that can happen when enabling the DMA interrupts again in
rx/tx poll.
```
BUG: spinlock recursion on CPU#0, swapper/0/0
lock: 0xffff00000db9cf20, .magic: dead4ead, .owner: swapper/0/0,
.owner_cpu: 0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted
6.15.0-rc2-next-20250417-00001-gf6a27738686c-dirty #28 PREEMPT
Hardware name: MediaTek MT8365 Open Platform EVK (DT)
Call trace:
show_stack+0x18/0x24 (C)
dump_stack_lvl+0x60/0x80
dump_stack+0x18/0x24
spin_dump+0x78/0x88
do_raw_spin_lock+0x11c/0x120
_raw_spin_lock+0x20/0x2c
mtk_star_handle_irq+0xc0/0x22c [mtk_star_emac]
__handle_irq_event_percpu+0x48/0x140
handle_irq_event+0x4c/0xb0
handle_fasteoi_irq+0xa0/0x1bc
handle_irq_desc+0x34/0x58
generic_handle_domain_irq+0x1c/0x28
gic_handle_irq+0x4c/0x120
do_interrupt_handler+0x50/0x84
el1_interrupt+0x34/0x68
el1h_64_irq_handler+0x18/0x24
el1h_64_irq+0x6c/0x70
regmap_mmio_read32le+0xc/0x20 (P)
_regmap_bus_reg_read+0x6c/0xac
_regmap_read+0x60/0xdc
regmap_read+0x4c/0x80
mtk_star_rx_poll+0x2f4/0x39c [mtk_star_emac]
__napi_poll+0x38/0x188
net_rx_action+0x164/0x2c0
handle_softirqs+0x100/0x244
__do_softirq+0x14/0x20
____do_softirq+0x10/0x20
call_on_irq_stack+0x24/0x64
do_softirq_own_stack+0x1c/0x40
__irq_exit_rcu+0xd4/0x10c
irq_exit_rcu+0x10/0x1c
el1_interrupt+0x38/0x68
el1h_64_irq_handler+0x18/0x24
el1h_64_irq+0x6c/0x70
cpuidle_enter_state+0xac/0x320 (P)
cpuidle_enter+0x38/0x50
do_idle+0x1e4/0x260
cpu_startup_entry+0x34/0x3c
rest_init+0xdc/0xe0
console_on_rootfs+0x0/0x6c
__primary_switched+0x88/0x90
```
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 97da99868573b8861de83f7126a5981d896c1d6c Version: 0a8bd81fd6aaace14979152e0540da8ff158a00a Version: 0a8bd81fd6aaace14979152e0540da8ff158a00a Version: 0a8bd81fd6aaace14979152e0540da8ff158a00a Version: 0a8bd81fd6aaace14979152e0540da8ff158a00a Version: 0a8bd81fd6aaace14979152e0540da8ff158a00a |
||
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CVE-2026-23284 (GCVE-0-2026-23284)
Vulnerability from cvelistv5
Published
2026-03-25 10:26
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in mtk_xdp_setup()
Reset eBPF program pointer to old_prog and do not decrease its ref-count
if mtk_open routine in mtk_xdp_setup() fails.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-71131 (GCVE-0-2025-71131)
Vulnerability from cvelistv5
Published
2026-01-14 15:07
Modified
2026-08-05 12:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: seqiv - Do not use req->iv after crypto_aead_encrypt
As soon as crypto_aead_encrypt is called, the underlying request
may be freed by an asynchronous completion. Thus dereferencing
req->iv after it returns is invalid.
Instead of checking req->iv against info, create a new variable
unaligned_info and use it for that purpose instead.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
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CVE-2025-39721 (GCVE-0-2025-39721)
Vulnerability from cvelistv5
Published
2025-09-05 17:21
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: qat - flush misc workqueue during device shutdown
Repeated loading and unloading of a device specific QAT driver, for
example qat_4xxx, in a tight loop can lead to a crash due to a
use-after-free scenario. This occurs when a power management (PM)
interrupt triggers just before the device-specific driver (e.g.,
qat_4xxx.ko) is unloaded, while the core driver (intel_qat.ko) remains
loaded.
Since the driver uses a shared workqueue (`qat_misc_wq`) across all
devices and owned by intel_qat.ko, a deferred routine from the
device-specific driver may still be pending in the queue. If this
routine executes after the driver is unloaded, it can dereference freed
memory, resulting in a page fault and kernel crash like the following:
BUG: unable to handle page fault for address: ffa000002e50a01c
#PF: supervisor read access in kernel mode
RIP: 0010:pm_bh_handler+0x1d2/0x250 [intel_qat]
Call Trace:
pm_bh_handler+0x1d2/0x250 [intel_qat]
process_one_work+0x171/0x340
worker_thread+0x277/0x3a0
kthread+0xf0/0x120
ret_from_fork+0x2d/0x50
To prevent this, flush the misc workqueue during device shutdown to
ensure that all pending work items are completed before the driver is
unloaded.
Note: This approach may slightly increase shutdown latency if the
workqueue contains jobs from other devices, but it ensures correctness
and stability.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-23026 (GCVE-0-2026-23026)
Vulnerability from cvelistv5
Published
2026-01-31 11:42
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config()
Fix a memory leak in gpi_peripheral_config() where the original memory
pointed to by gchan->config could be lost if krealloc() fails.
The issue occurs when:
1. gchan->config points to previously allocated memory
2. krealloc() fails and returns NULL
3. The function directly assigns NULL to gchan->config, losing the
reference to the original memory
4. The original memory becomes unreachable and cannot be freed
Fix this by using a temporary variable to hold the krealloc() result
and only updating gchan->config when the allocation succeeds.
Found via static analysis and code review.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
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||
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CVE-2026-31674 (GCVE-0-2026-31674)
Vulnerability from cvelistv5
Published
2026-04-25 08:46
Modified
2026-08-05 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check()
Reject rt match rules whose addrnr exceeds IP6T_RT_HOPS.
rt_mt6() expects addrnr to stay within the bounds of rtinfo->addrs[].
Validate addrnr during rule installation so malformed rules are rejected
before the match logic can use an out-of-range value.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2026-23300 (GCVE-0-2026-23300)
Vulnerability from cvelistv5
Published
2026-03-25 10:26
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop
When a standalone IPv6 nexthop object is created with a loopback device
(e.g., "ip -6 nexthop add id 100 dev lo"), fib6_nh_init() misclassifies
it as a reject route. This is because nexthop objects have no destination
prefix (fc_dst=::), causing fib6_is_reject() to match any loopback
nexthop. The reject path skips fib_nh_common_init(), leaving
nhc_pcpu_rth_output unallocated. If an IPv4 route later references this
nexthop, __mkroute_output() dereferences NULL nhc_pcpu_rth_output and
panics.
Simplify the check in fib6_nh_init() to only match explicit reject
routes (RTF_REJECT) instead of using fib6_is_reject(). The loopback
promotion heuristic in fib6_is_reject() is handled separately by
ip6_route_info_create_nh(). After this change, the three cases behave
as follows:
1. Explicit reject route ("ip -6 route add unreachable 2001:db8::/64"):
RTF_REJECT is set, enters reject path, skips fib_nh_common_init().
No behavior change.
2. Implicit loopback reject route ("ip -6 route add 2001:db8::/32 dev lo"):
RTF_REJECT is not set, takes normal path, fib_nh_common_init() is
called. ip6_route_info_create_nh() still promotes it to reject
afterward. nhc_pcpu_rth_output is allocated but unused, which is
harmless.
3. Standalone nexthop object ("ip -6 nexthop add id 100 dev lo"):
RTF_REJECT is not set, takes normal path, fib_nh_common_init() is
called. nhc_pcpu_rth_output is properly allocated, fixing the crash
when IPv4 routes reference this nexthop.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e |
||
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CVE-2026-43284 (GCVE-0-2026-43284)
Vulnerability from cvelistv5
Published
2026-05-08 07:21
Modified
2026-08-24 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfrm: esp: avoid in-place decrypt on shared skb frags
MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP
marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter(),
so later paths that may modify packet data can first make a private
copy. The IPv4/IPv6 datagram append paths did not set this flag when
splicing pages into UDP skbs.
That leaves an ESP-in-UDP packet made from shared pipe pages looking
like an ordinary uncloned nonlinear skb. ESP input then takes the no-COW
fast path for uncloned skbs without a frag_list and decrypts in place
over data that is not owned privately by the skb.
Mark IPv4/IPv6 datagram splice frags with SKBFL_SHARED_FRAG, matching
TCP. Also make ESP input fall back to skb_cow_data() when the flag is
present, so ESP does not decrypt externally backed frags in place.
Private nonlinear skb frags still use the existing fast path.
This intentionally does not change ESP output. In esp_output_head(),
the path that appends the ESP trailer to existing skb tailroom without
calling skb_cow_data() is not reachable for nonlinear skbs:
skb_tailroom() returns zero when skb->data_len is nonzero, while ESP
tailen is positive. Thus ESP output will either use the separate
destination-frag path or fall back to skb_cow_data().
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 Version: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 |
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CVE-2025-38201 (GCVE-0-2025-38201)
Vulnerability from cvelistv5
Published
2025-07-04 13:37
Modified
2026-07-14 12:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX
Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof()
when resizing hashtable because __GFP_NOWARN is unset.
Similar to:
b541ba7d1f5a ("netfilter: conntrack: clamp maximum hashtable size to INT_MAX")
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da |
||
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CVE-2024-58061 (GCVE-0-2024-58061)
Vulnerability from cvelistv5
Published
2025-03-06 15:54
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: prohibit deactivating all links
In the internal API this calls this is a WARN_ON, but that
should remain since internally we want to know about bugs
that may cause this. Prevent deactivating all links in the
debugfs write directly.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-23457 (GCVE-0-2026-23457)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp()
sip_help_tcp() parses the SIP Content-Length header with
simple_strtoul(), which returns unsigned long, but stores the result in
unsigned int clen. On 64-bit systems, values exceeding UINT_MAX are
silently truncated before computing the SIP message boundary.
For example, Content-Length 4294967328 (2^32 + 32) is truncated to 32,
causing the parser to miscalculate where the current message ends. The
loop then treats trailing data in the TCP segment as a second SIP
message and processes it through the SDP parser.
Fix this by changing clen to unsigned long to match the return type of
simple_strtoul(), and reject Content-Length values that exceed the
remaining TCP payload length.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-68818 (GCVE-0-2025-68818)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: Revert "scsi: qla2xxx: Perform lockless command completion in abort path"
This reverts commit 0367076b0817d5c75dfb83001ce7ce5c64d803a9.
The commit being reverted added code to __qla2x00_abort_all_cmds() to
call sp->done() without holding a spinlock. But unlike the older code
below it, this new code failed to check sp->cmd_type and just assumed
TYPE_SRB, which results in a jump to an invalid pointer in target-mode
with TYPE_TGT_CMD:
qla2xxx [0000:65:00.0]-d034:8: qla24xx_do_nack_work create sess success
0000000009f7a79b
qla2xxx [0000:65:00.0]-5003:8: ISP System Error - mbx1=1ff5h mbx2=10h
mbx3=0h mbx4=0h mbx5=191h mbx6=0h mbx7=0h.
qla2xxx [0000:65:00.0]-d01e:8: -> fwdump no buffer
qla2xxx [0000:65:00.0]-f03a:8: qla_target(0): System error async event
0x8002 occurred
qla2xxx [0000:65:00.0]-00af:8: Performing ISP error recovery -
ha=0000000058183fda.
BUG: kernel NULL pointer dereference, address: 0000000000000000
PF: supervisor instruction fetch in kernel mode
PF: error_code(0x0010) - not-present page
PGD 0 P4D 0
Oops: 0010 [#1] SMP
CPU: 2 PID: 9446 Comm: qla2xxx_8_dpc Tainted: G O 6.1.133 #1
Hardware name: Supermicro Super Server/X11SPL-F, BIOS 4.2 12/15/2023
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90001f93dc8 EFLAGS: 00010206
RAX: 0000000000000282 RBX: 0000000000000355 RCX: ffff88810d16a000
RDX: ffff88810dbadaa8 RSI: 0000000000080000 RDI: ffff888169dc38c0
RBP: ffff888169dc38c0 R08: 0000000000000001 R09: 0000000000000045
R10: ffffffffa034bdf0 R11: 0000000000000000 R12: ffff88810800bb40
R13: 0000000000001aa8 R14: ffff888100136610 R15: ffff8881070f7400
FS: 0000000000000000(0000) GS:ffff88bf80080000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000010c8ff006 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? __die+0x4d/0x8b
? page_fault_oops+0x91/0x180
? trace_buffer_unlock_commit_regs+0x38/0x1a0
? exc_page_fault+0x391/0x5e0
? asm_exc_page_fault+0x22/0x30
__qla2x00_abort_all_cmds+0xcb/0x3e0 [qla2xxx_scst]
qla2x00_abort_all_cmds+0x50/0x70 [qla2xxx_scst]
qla2x00_abort_isp_cleanup+0x3b7/0x4b0 [qla2xxx_scst]
qla2x00_abort_isp+0xfd/0x860 [qla2xxx_scst]
qla2x00_do_dpc+0x581/0xa40 [qla2xxx_scst]
kthread+0xa8/0xd0
</TASK>
Then commit 4475afa2646d ("scsi: qla2xxx: Complete command early within
lock") added the spinlock back, because not having the lock caused a
race and a crash. But qla2x00_abort_srb() in the switch below already
checks for qla2x00_chip_is_down() and handles it the same way, so the
code above the switch is now redundant and still buggy in target-mode.
Remove it.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 231cfa78ec5badd84a1a2b09465bfad1a926aba1 Version: d6f7377528d2abf338e504126e44439541be8f7d Version: cd0a1804ac5bab2545ac700c8d0fe9ae9284c567 Version: 0367076b0817d5c75dfb83001ce7ce5c64d803a9 Version: 0367076b0817d5c75dfb83001ce7ce5c64d803a9 Version: 0367076b0817d5c75dfb83001ce7ce5c64d803a9 Version: 0367076b0817d5c75dfb83001ce7ce5c64d803a9 Version: 9189f20b4c5307c0998682bb522e481b4567a8b8 Version: 415d614344a4f1bbddf55d724fc7eb9ef4b39aad Version: 5.10.177 ≤ Version: 5.15.105 ≤ Version: 6.1.22 ≤ Version: 5.4.240 ≤ Version: 6.2.9 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: Revert \"scsi: qla2xxx: Perform lockless command completion in abort path\"\n\nThis reverts commit 0367076b0817d5c75dfb83001ce7ce5c64d803a9.\n\nThe commit being reverted added code to __qla2x00_abort_all_cmds() to\ncall sp-\u003edone() without holding a spinlock. But unlike the older code\nbelow it, this new code failed to check sp-\u003ecmd_type and just assumed\nTYPE_SRB, which results in a jump to an invalid pointer in target-mode\nwith TYPE_TGT_CMD:\n\nqla2xxx [0000:65:00.0]-d034:8: qla24xx_do_nack_work create sess success\n 0000000009f7a79b\nqla2xxx [0000:65:00.0]-5003:8: ISP System Error - mbx1=1ff5h mbx2=10h\n mbx3=0h mbx4=0h mbx5=191h mbx6=0h mbx7=0h.\nqla2xxx [0000:65:00.0]-d01e:8: -\u003e fwdump no buffer\nqla2xxx [0000:65:00.0]-f03a:8: qla_target(0): System error async event\n 0x8002 occurred\nqla2xxx [0000:65:00.0]-00af:8: Performing ISP error recovery -\n ha=0000000058183fda.\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nPF: supervisor instruction fetch in kernel mode\nPF: error_code(0x0010) - not-present page\nPGD 0 P4D 0\nOops: 0010 [#1] SMP\nCPU: 2 PID: 9446 Comm: qla2xxx_8_dpc Tainted: G O 6.1.133 #1\nHardware name: Supermicro Super Server/X11SPL-F, BIOS 4.2 12/15/2023\nRIP: 0010:0x0\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\nRSP: 0018:ffffc90001f93dc8 EFLAGS: 00010206\nRAX: 0000000000000282 RBX: 0000000000000355 RCX: ffff88810d16a000\nRDX: ffff88810dbadaa8 RSI: 0000000000080000 RDI: ffff888169dc38c0\nRBP: ffff888169dc38c0 R08: 0000000000000001 R09: 0000000000000045\nR10: ffffffffa034bdf0 R11: 0000000000000000 R12: ffff88810800bb40\nR13: 0000000000001aa8 R14: ffff888100136610 R15: ffff8881070f7400\nFS: 0000000000000000(0000) GS:ffff88bf80080000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffffffffd6 CR3: 000000010c8ff006 CR4: 00000000003706e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n ? __die+0x4d/0x8b\n ? page_fault_oops+0x91/0x180\n ? trace_buffer_unlock_commit_regs+0x38/0x1a0\n ? exc_page_fault+0x391/0x5e0\n ? asm_exc_page_fault+0x22/0x30\n __qla2x00_abort_all_cmds+0xcb/0x3e0 [qla2xxx_scst]\n qla2x00_abort_all_cmds+0x50/0x70 [qla2xxx_scst]\n qla2x00_abort_isp_cleanup+0x3b7/0x4b0 [qla2xxx_scst]\n qla2x00_abort_isp+0xfd/0x860 [qla2xxx_scst]\n qla2x00_do_dpc+0x581/0xa40 [qla2xxx_scst]\n kthread+0xa8/0xd0\n \u003c/TASK\u003e\n\nThen commit 4475afa2646d (\"scsi: qla2xxx: Complete command early within\nlock\") added the spinlock back, because not having the lock caused a\nrace and a crash. But qla2x00_abort_srb() in the switch below already\nchecks for qla2x00_chip_is_down() and handles it the same way, so the\ncode above the switch is now redundant and still buggy in target-mode.\nRemove it."
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CVE-2024-49968 (GCVE-0-2024-49968)
Vulnerability from cvelistv5
Published
2024-10-21 18:02
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: filesystems without casefold feature cannot be mounted with siphash
When mounting the ext4 filesystem, if the default hash version is set to
DX_HASH_SIPHASH but the casefold feature is not set, exit the mounting.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2024-56703 (GCVE-0-2024-56703)
Vulnerability from cvelistv5
Published
2024-12-28 09:46
Modified
2026-08-05 11:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix soft lockups in fib6_select_path under high next hop churn
Soft lockups have been observed on a cluster of Linux-based edge routers
located in a highly dynamic environment. Using the `bird` service, these
routers continuously update BGP-advertised routes due to frequently
changing nexthop destinations, while also managing significant IPv6
traffic. The lockups occur during the traversal of the multipath
circular linked-list in the `fib6_select_path` function, particularly
while iterating through the siblings in the list. The issue typically
arises when the nodes of the linked list are unexpectedly deleted
concurrently on a different core—indicated by their 'next' and
'previous' elements pointing back to the node itself and their reference
count dropping to zero. This results in an infinite loop, leading to a
soft lockup that triggers a system panic via the watchdog timer.
Apply RCU primitives in the problematic code sections to resolve the
issue. Where necessary, update the references to fib6_siblings to
annotate or use the RCU APIs.
Include a test script that reproduces the issue. The script
periodically updates the routing table while generating a heavy load
of outgoing IPv6 traffic through multiple iperf3 clients. It
consistently induces infinite soft lockups within a couple of minutes.
Kernel log:
0 [ffffbd13003e8d30] machine_kexec at ffffffff8ceaf3eb
1 [ffffbd13003e8d90] __crash_kexec at ffffffff8d0120e3
2 [ffffbd13003e8e58] panic at ffffffff8cef65d4
3 [ffffbd13003e8ed8] watchdog_timer_fn at ffffffff8d05cb03
4 [ffffbd13003e8f08] __hrtimer_run_queues at ffffffff8cfec62f
5 [ffffbd13003e8f70] hrtimer_interrupt at ffffffff8cfed756
6 [ffffbd13003e8fd0] __sysvec_apic_timer_interrupt at ffffffff8cea01af
7 [ffffbd13003e8ff0] sysvec_apic_timer_interrupt at ffffffff8df1b83d
-- <IRQ stack> --
8 [ffffbd13003d3708] asm_sysvec_apic_timer_interrupt at ffffffff8e000ecb
[exception RIP: fib6_select_path+299]
RIP: ffffffff8ddafe7b RSP: ffffbd13003d37b8 RFLAGS: 00000287
RAX: ffff975850b43600 RBX: ffff975850b40200 RCX: 0000000000000000
RDX: 000000003fffffff RSI: 0000000051d383e4 RDI: ffff975850b43618
RBP: ffffbd13003d3800 R8: 0000000000000000 R9: ffff975850b40200
R10: 0000000000000000 R11: 0000000000000000 R12: ffffbd13003d3830
R13: ffff975850b436a8 R14: ffff975850b43600 R15: 0000000000000007
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
9 [ffffbd13003d3808] ip6_pol_route at ffffffff8ddb030c
10 [ffffbd13003d3888] ip6_pol_route_input at ffffffff8ddb068c
11 [ffffbd13003d3898] fib6_rule_lookup at ffffffff8ddf02b5
12 [ffffbd13003d3928] ip6_route_input at ffffffff8ddb0f47
13 [ffffbd13003d3a18] ip6_rcv_finish_core.constprop.0 at ffffffff8dd950d0
14 [ffffbd13003d3a30] ip6_list_rcv_finish.constprop.0 at ffffffff8dd96274
15 [ffffbd13003d3a98] ip6_sublist_rcv at ffffffff8dd96474
16 [ffffbd13003d3af8] ipv6_list_rcv at ffffffff8dd96615
17 [ffffbd13003d3b60] __netif_receive_skb_list_core at ffffffff8dc16fec
18 [ffffbd13003d3be0] netif_receive_skb_list_internal at ffffffff8dc176b3
19 [ffffbd13003d3c50] napi_gro_receive at ffffffff8dc565b9
20 [ffffbd13003d3c80] ice_receive_skb at ffffffffc087e4f5 [ice]
21 [ffffbd13003d3c90] ice_clean_rx_irq at ffffffffc0881b80 [ice]
22 [ffffbd13003d3d20] ice_napi_poll at ffffffffc088232f [ice]
23 [ffffbd13003d3d80] __napi_poll at ffffffff8dc18000
24 [ffffbd13003d3db8] net_rx_action at ffffffff8dc18581
25 [ffffbd13003d3e40] __do_softirq at ffffffff8df352e9
26 [ffffbd13003d3eb0] run_ksoftirqd at ffffffff8ceffe47
27 [ffffbd13003d3ec0] smpboot_thread_fn at ffffffff8cf36a30
28 [ffffbd13003d3ee8] kthread at ffffffff8cf2b39f
29 [ffffbd13003d3f28] ret_from_fork at ffffffff8ce5fa64
30 [ffffbd13003d3f50] ret_from_fork_asm at ffffffff8ce03cbb
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-40080 (GCVE-0-2025-40080)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nbd: restrict sockets to TCP and UDP
Recently, syzbot started to abuse NBD with all kinds of sockets.
Commit cf1b2326b734 ("nbd: verify socket is supported during setup")
made sure the socket supported a shutdown() method.
Explicitely accept TCP and UNIX stream sockets.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: 4df728651b8a99693c69962d8e5a5b9e5a3bbcc7 Version: 083322455c67d278c56a66b73f1221f004ee600a Version: 4fa1cbd587ef967812f9d9f6ce46ec1dead7502c Version: 4.14.152 ≤ Version: 4.19.82 ≤ Version: 5.3.9 ≤ |
||
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CVE-2025-21919 (GCVE-0-2025-21919)
Vulnerability from cvelistv5
Published
2025-04-01 15:40
Modified
2026-08-05 11:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
sched/fair: Fix potential memory corruption in child_cfs_rq_on_list
child_cfs_rq_on_list attempts to convert a 'prev' pointer to a cfs_rq.
This 'prev' pointer can originate from struct rq's leaf_cfs_rq_list,
making the conversion invalid and potentially leading to memory
corruption. Depending on the relative positions of leaf_cfs_rq_list and
the task group (tg) pointer within the struct, this can cause a memory
fault or access garbage data.
The issue arises in list_add_leaf_cfs_rq, where both
cfs_rq->leaf_cfs_rq_list and rq->leaf_cfs_rq_list are added to the same
leaf list. Also, rq->tmp_alone_branch can be set to rq->leaf_cfs_rq_list.
This adds a check `if (prev == &rq->leaf_cfs_rq_list)` after the main
conditional in child_cfs_rq_on_list. This ensures that the container_of
operation will convert a correct cfs_rq struct.
This check is sufficient because only cfs_rqs on the same CPU are added
to the list, so verifying the 'prev' pointer against the current rq's list
head is enough.
Fixes a potential memory corruption issue that due to current struct
layout might not be manifesting as a crash but could lead to unpredictable
behavior when the layout changes.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fdaba61ef8a268d4136d0a113d153f7a89eb9984 Version: fdaba61ef8a268d4136d0a113d153f7a89eb9984 Version: fdaba61ef8a268d4136d0a113d153f7a89eb9984 Version: fdaba61ef8a268d4136d0a113d153f7a89eb9984 Version: fdaba61ef8a268d4136d0a113d153f7a89eb9984 Version: fdaba61ef8a268d4136d0a113d153f7a89eb9984 |
||
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CVE-2025-68266 (GCVE-0-2025-68266)
Vulnerability from cvelistv5
Published
2025-12-16 14:47
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bfs: Reconstruct file type when loading from disk
syzbot is reporting that S_IFMT bits of inode->i_mode can become bogus when
the S_IFMT bits of the 32bits "mode" field loaded from disk are corrupted
or when the 32bits "attributes" field loaded from disk are corrupted.
A documentation says that BFS uses only lower 9 bits of the "mode" field.
But I can't find an explicit explanation that the unused upper 23 bits
(especially, the S_IFMT bits) are initialized with 0.
Therefore, ignore the S_IFMT bits of the "mode" field loaded from disk.
Also, verify that the value of the "attributes" field loaded from disk is
either BFS_VREG or BFS_VDIR (because BFS supports only regular files and
the root directory).
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
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CVE-2026-31682 (GCVE-0-2026-31682)
Vulnerability from cvelistv5
Published
2026-04-25 08:46
Modified
2026-08-05 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bridge: br_nd_send: linearize skb before parsing ND options
br_nd_send() parses neighbour discovery options from ns->opt[] and
assumes that these options are in the linear part of request.
Its callers only guarantee that the ICMPv6 header and target address
are available, so the option area can still be non-linear. Parsing
ns->opt[] in that case can access data past the linear buffer.
Linearize request before option parsing and derive ns from the linear
network header.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 |
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CVE-2025-71088 (GCVE-0-2025-71088)
Vulnerability from cvelistv5
Published
2026-01-13 15:34
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fallback earlier on simult connection
Syzkaller reports a simult-connect race leading to inconsistent fallback
status:
WARNING: CPU: 3 PID: 33 at net/mptcp/subflow.c:1515 subflow_data_ready+0x40b/0x7c0 net/mptcp/subflow.c:1515
Modules linked in:
CPU: 3 UID: 0 PID: 33 Comm: ksoftirqd/3 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:subflow_data_ready+0x40b/0x7c0 net/mptcp/subflow.c:1515
Code: 89 ee e8 78 61 3c f6 40 84 ed 75 21 e8 8e 66 3c f6 44 89 fe bf 07 00 00 00 e8 c1 61 3c f6 41 83 ff 07 74 09 e8 76 66 3c f6 90 <0f> 0b 90 e8 6d 66 3c f6 48 89 df e8 e5 ad ff ff 31 ff 89 c5 89 c6
RSP: 0018:ffffc900006cf338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888031acd100 RCX: ffffffff8b7f2abf
RDX: ffff88801e6ea440 RSI: ffffffff8b7f2aca RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000007
R10: 0000000000000004 R11: 0000000000002c10 R12: ffff88802ba69900
R13: 1ffff920000d9e67 R14: ffff888046f81800 R15: 0000000000000004
FS: 0000000000000000(0000) GS:ffff8880d69bc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560fc0ca1670 CR3: 0000000032c3a000 CR4: 0000000000352ef0
Call Trace:
<TASK>
tcp_data_queue+0x13b0/0x4f90 net/ipv4/tcp_input.c:5197
tcp_rcv_state_process+0xfdf/0x4ec0 net/ipv4/tcp_input.c:6922
tcp_v6_do_rcv+0x492/0x1740 net/ipv6/tcp_ipv6.c:1672
tcp_v6_rcv+0x2976/0x41e0 net/ipv6/tcp_ipv6.c:1918
ip6_protocol_deliver_rcu+0x188/0x1520 net/ipv6/ip6_input.c:438
ip6_input_finish+0x1e4/0x4b0 net/ipv6/ip6_input.c:489
NF_HOOK include/linux/netfilter.h:318 [inline]
NF_HOOK include/linux/netfilter.h:312 [inline]
ip6_input+0x105/0x2f0 net/ipv6/ip6_input.c:500
dst_input include/net/dst.h:471 [inline]
ip6_rcv_finish net/ipv6/ip6_input.c:79 [inline]
NF_HOOK include/linux/netfilter.h:318 [inline]
NF_HOOK include/linux/netfilter.h:312 [inline]
ipv6_rcv+0x264/0x650 net/ipv6/ip6_input.c:311
__netif_receive_skb_one_core+0x12d/0x1e0 net/core/dev.c:5979
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6092
process_backlog+0x442/0x15e0 net/core/dev.c:6444
__napi_poll.constprop.0+0xba/0x550 net/core/dev.c:7494
napi_poll net/core/dev.c:7557 [inline]
net_rx_action+0xa9f/0xfe0 net/core/dev.c:7684
handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
run_ksoftirqd kernel/softirq.c:968 [inline]
run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
smpboot_thread_fn+0x3f7/0xae0 kernel/smpboot.c:160
kthread+0x3c2/0x780 kernel/kthread.c:463
ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
The TCP subflow can process the simult-connect syn-ack packet after
transitioning to TCP_FIN1 state, bypassing the MPTCP fallback check,
as the sk_state_change() callback is not invoked for * -> FIN_WAIT1
transitions.
That will move the msk socket to an inconsistent status and the next
incoming data will hit the reported splat.
Close the race moving the simult-fallback check at the earliest possible
stage - that is at syn-ack generation time.
About the fixes tags: [2] was supposed to also fix this issue introduced
by [3]. [1] is required as a dependence: it was not explicitly marked as
a fix, but it is one and it has already been backported before [3]. In
other words, this commit should be backported up to [3], including [2]
and [1] if that's not already there.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 01b7822700f2256900089e00390e119e1ad545df Version: 1e777f39b4d75e599a3aac8e0f67d739474f198c Version: 1e777f39b4d75e599a3aac8e0f67d739474f198c Version: 1e777f39b4d75e599a3aac8e0f67d739474f198c Version: 1e777f39b4d75e599a3aac8e0f67d739474f198c Version: 6.1.110 ≤ |
||
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CVE-2026-31416 (GCVE-0-2026-31416)
Vulnerability from cvelistv5
Published
2026-04-13 13:21
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nfnetlink_log: account for netlink header size
This is a followup to an old bug fix: NLMSG_DONE needs to account
for the netlink header size, not just the attribute size.
This can result in a WARN splat + drop of the netlink message,
but other than this there are no ill effects.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 9dfa1dfe4d5e5e66a991321ab08afe69759d797a Version: 3a758a2b78da2f49f7165678faf999e946a0c4b5 Version: 131172845aa2c804ffa9423455aee585061ea35e Version: b1fef6b81871a396f3b8702077333e769673c87b Version: add9183d993c12fb61ce0a674a424341d5be5b36 Version: 3.10.61 ≤ Version: 3.12.34 ≤ Version: 3.14.25 ≤ Version: 3.17.4 ≤ |
||
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CVE-2026-22977 (GCVE-0-2026-22977)
Vulnerability from cvelistv5
Published
2026-01-21 13:08
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: sock: fix hardened usercopy panic in sock_recv_errqueue
skbuff_fclone_cache was created without defining a usercopy region,
[1] unlike skbuff_head_cache which properly whitelists the cb[] field.
[2] This causes a usercopy BUG() when CONFIG_HARDENED_USERCOPY is
enabled and the kernel attempts to copy sk_buff.cb data to userspace
via sock_recv_errqueue() -> put_cmsg().
The crash occurs when: 1. TCP allocates an skb using alloc_skb_fclone()
(from skbuff_fclone_cache) [1]
2. The skb is cloned via skb_clone() using the pre-allocated fclone
[3] 3. The cloned skb is queued to sk_error_queue for timestamp
reporting 4. Userspace reads the error queue via recvmsg(MSG_ERRQUEUE)
5. sock_recv_errqueue() calls put_cmsg() to copy serr->ee from skb->cb
[4] 6. __check_heap_object() fails because skbuff_fclone_cache has no
usercopy whitelist [5]
When cloned skbs allocated from skbuff_fclone_cache are used in the
socket error queue, accessing the sock_exterr_skb structure in skb->cb
via put_cmsg() triggers a usercopy hardening violation:
[ 5.379589] usercopy: Kernel memory exposure attempt detected from SLUB object 'skbuff_fclone_cache' (offset 296, size 16)!
[ 5.382796] kernel BUG at mm/usercopy.c:102!
[ 5.383923] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
[ 5.384903] CPU: 1 UID: 0 PID: 138 Comm: poc_put_cmsg Not tainted 6.12.57 #7
[ 5.384903] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 5.384903] RIP: 0010:usercopy_abort+0x6c/0x80
[ 5.384903] Code: 1a 86 51 48 c7 c2 40 15 1a 86 41 52 48 c7 c7 c0 15 1a 86 48 0f 45 d6 48 c7 c6 80 15 1a 86 48 89 c1 49 0f 45 f3 e8 84 27 88 ff <0f> 0b 490
[ 5.384903] RSP: 0018:ffffc900006f77a8 EFLAGS: 00010246
[ 5.384903] RAX: 000000000000006f RBX: ffff88800f0ad2a8 RCX: 1ffffffff0f72e74
[ 5.384903] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff87b973a0
[ 5.384903] RBP: 0000000000000010 R08: 0000000000000000 R09: fffffbfff0f72e74
[ 5.384903] R10: 0000000000000003 R11: 79706f6372657375 R12: 0000000000000001
[ 5.384903] R13: ffff88800f0ad2b8 R14: ffffea00003c2b40 R15: ffffea00003c2b00
[ 5.384903] FS: 0000000011bc4380(0000) GS:ffff8880bf100000(0000) knlGS:0000000000000000
[ 5.384903] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.384903] CR2: 000056aa3b8e5fe4 CR3: 000000000ea26004 CR4: 0000000000770ef0
[ 5.384903] PKRU: 55555554
[ 5.384903] Call Trace:
[ 5.384903] <TASK>
[ 5.384903] __check_heap_object+0x9a/0xd0
[ 5.384903] __check_object_size+0x46c/0x690
[ 5.384903] put_cmsg+0x129/0x5e0
[ 5.384903] sock_recv_errqueue+0x22f/0x380
[ 5.384903] tls_sw_recvmsg+0x7ed/0x1960
[ 5.384903] ? srso_alias_return_thunk+0x5/0xfbef5
[ 5.384903] ? schedule+0x6d/0x270
[ 5.384903] ? srso_alias_return_thunk+0x5/0xfbef5
[ 5.384903] ? mutex_unlock+0x81/0xd0
[ 5.384903] ? __pfx_mutex_unlock+0x10/0x10
[ 5.384903] ? __pfx_tls_sw_recvmsg+0x10/0x10
[ 5.384903] ? _raw_spin_lock_irqsave+0x8f/0xf0
[ 5.384903] ? _raw_read_unlock_irqrestore+0x20/0x40
[ 5.384903] ? srso_alias_return_thunk+0x5/0xfbef5
The crash offset 296 corresponds to skb2->cb within skbuff_fclones:
- sizeof(struct sk_buff) = 232 - offsetof(struct sk_buff, cb) = 40 -
offset of skb2.cb in fclones = 232 + 40 = 272 - crash offset 296 =
272 + 24 (inside sock_exterr_skb.ee)
This patch uses a local stack variable as a bounce buffer to avoid the hardened usercopy check failure.
[1] https://elixir.bootlin.com/linux/v6.12.62/source/net/ipv4/tcp.c#L885
[2] https://elixir.bootlin.com/linux/v6.12.62/source/net/core/skbuff.c#L5104
[3] https://elixir.bootlin.com/linux/v6.12.62/source/net/core/skbuff.c#L5566
[4] https://elixir.bootlin.com/linux/v6.12.62/source/net/core/skbuff.c#L5491
[5] https://elixir.bootlin.com/linux/v6.12.62/source/mm/slub.c#L5719
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6d07d1cd300f4c7e16005f881fea388164999cc8 Version: 6d07d1cd300f4c7e16005f881fea388164999cc8 Version: 6d07d1cd300f4c7e16005f881fea388164999cc8 Version: 6d07d1cd300f4c7e16005f881fea388164999cc8 Version: 6d07d1cd300f4c7e16005f881fea388164999cc8 Version: 6d07d1cd300f4c7e16005f881fea388164999cc8 Version: 6d07d1cd300f4c7e16005f881fea388164999cc8 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sock: fix hardened usercopy panic in sock_recv_errqueue\n\nskbuff_fclone_cache was created without defining a usercopy region,\n[1] unlike skbuff_head_cache which properly whitelists the cb[] field.\n[2] This causes a usercopy BUG() when CONFIG_HARDENED_USERCOPY is\nenabled and the kernel attempts to copy sk_buff.cb data to userspace\nvia sock_recv_errqueue() -\u003e put_cmsg().\n\nThe crash occurs when: 1. TCP allocates an skb using alloc_skb_fclone()\n (from skbuff_fclone_cache) [1]\n2. The skb is cloned via skb_clone() using the pre-allocated fclone\n[3] 3. The cloned skb is queued to sk_error_queue for timestamp\nreporting 4. Userspace reads the error queue via recvmsg(MSG_ERRQUEUE)\n5. sock_recv_errqueue() calls put_cmsg() to copy serr-\u003eee from skb-\u003ecb\n[4] 6. __check_heap_object() fails because skbuff_fclone_cache has no\n usercopy whitelist [5]\n\nWhen cloned skbs allocated from skbuff_fclone_cache are used in the\nsocket error queue, accessing the sock_exterr_skb structure in skb-\u003ecb\nvia put_cmsg() triggers a usercopy hardening violation:\n\n[ 5.379589] usercopy: Kernel memory exposure attempt detected from SLUB object \u0027skbuff_fclone_cache\u0027 (offset 296, size 16)!\n[ 5.382796] kernel BUG at mm/usercopy.c:102!\n[ 5.383923] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI\n[ 5.384903] CPU: 1 UID: 0 PID: 138 Comm: poc_put_cmsg Not tainted 6.12.57 #7\n[ 5.384903] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\n[ 5.384903] RIP: 0010:usercopy_abort+0x6c/0x80\n[ 5.384903] Code: 1a 86 51 48 c7 c2 40 15 1a 86 41 52 48 c7 c7 c0 15 1a 86 48 0f 45 d6 48 c7 c6 80 15 1a 86 48 89 c1 49 0f 45 f3 e8 84 27 88 ff \u003c0f\u003e 0b 490\n[ 5.384903] RSP: 0018:ffffc900006f77a8 EFLAGS: 00010246\n[ 5.384903] RAX: 000000000000006f RBX: ffff88800f0ad2a8 RCX: 1ffffffff0f72e74\n[ 5.384903] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff87b973a0\n[ 5.384903] RBP: 0000000000000010 R08: 0000000000000000 R09: fffffbfff0f72e74\n[ 5.384903] R10: 0000000000000003 R11: 79706f6372657375 R12: 0000000000000001\n[ 5.384903] R13: ffff88800f0ad2b8 R14: ffffea00003c2b40 R15: ffffea00003c2b00\n[ 5.384903] FS: 0000000011bc4380(0000) GS:ffff8880bf100000(0000) knlGS:0000000000000000\n[ 5.384903] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 5.384903] CR2: 000056aa3b8e5fe4 CR3: 000000000ea26004 CR4: 0000000000770ef0\n[ 5.384903] PKRU: 55555554\n[ 5.384903] Call Trace:\n[ 5.384903] \u003cTASK\u003e\n[ 5.384903] __check_heap_object+0x9a/0xd0\n[ 5.384903] __check_object_size+0x46c/0x690\n[ 5.384903] put_cmsg+0x129/0x5e0\n[ 5.384903] sock_recv_errqueue+0x22f/0x380\n[ 5.384903] tls_sw_recvmsg+0x7ed/0x1960\n[ 5.384903] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 5.384903] ? schedule+0x6d/0x270\n[ 5.384903] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 5.384903] ? mutex_unlock+0x81/0xd0\n[ 5.384903] ? __pfx_mutex_unlock+0x10/0x10\n[ 5.384903] ? __pfx_tls_sw_recvmsg+0x10/0x10\n[ 5.384903] ? _raw_spin_lock_irqsave+0x8f/0xf0\n[ 5.384903] ? _raw_read_unlock_irqrestore+0x20/0x40\n[ 5.384903] ? srso_alias_return_thunk+0x5/0xfbef5\n\nThe crash offset 296 corresponds to skb2-\u003ecb within skbuff_fclones:\n - sizeof(struct sk_buff) = 232 - offsetof(struct sk_buff, cb) = 40 -\n offset of skb2.cb in fclones = 232 + 40 = 272 - crash offset 296 =\n 272 + 24 (inside sock_exterr_skb.ee)\n\nThis patch uses a local stack variable as a bounce buffer to avoid the hardened usercopy check failure.\n\n[1] https://elixir.bootlin.com/linux/v6.12.62/source/net/ipv4/tcp.c#L885\n[2] https://elixir.bootlin.com/linux/v6.12.62/source/net/core/skbuff.c#L5104\n[3] https://elixir.bootlin.com/linux/v6.12.62/source/net/core/skbuff.c#L5566\n[4] https://elixir.bootlin.com/linux/v6.12.62/source/net/core/skbuff.c#L5491\n[5] https://elixir.bootlin.com/linux/v6.12.62/source/mm/slub.c#L5719"
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CVE-2025-68814 (GCVE-0-2025-68814)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix filename leak in __io_openat_prep()
__io_openat_prep() allocates a struct filename using getname(). However,
for the condition of the file being installed in the fixed file table as
well as having O_CLOEXEC flag set, the function returns early. At that
point, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this,
the memory for the newly allocated struct filename is not cleaned up,
causing a memory leak.
Fix this by setting the REQ_F_NEED_CLEANUP for the request just after the
successful getname() call, so that when the request is torn down, the
filename will be cleaned up, along with other resources needing cleanup.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b9445598d8c60a1379887b957024b71343965f74 Version: b9445598d8c60a1379887b957024b71343965f74 Version: b9445598d8c60a1379887b957024b71343965f74 Version: b9445598d8c60a1379887b957024b71343965f74 Version: b9445598d8c60a1379887b957024b71343965f74 Version: b9445598d8c60a1379887b957024b71343965f74 |
||
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CVE-2024-42079 (GCVE-0-2024-42079)
Vulnerability from cvelistv5
Published
2024-07-29 15:52
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
gfs2: Fix NULL pointer dereference in gfs2_log_flush
In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush
lock to provide exclusion against gfs2_log_flush().
In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before
dereferencing it. Otherwise, we could run into a NULL pointer
dereference when outstanding glock work races with an unmount
(glock_work_func -> run_queue -> do_xmote -> inode_go_sync ->
gfs2_log_flush).
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-31414 (GCVE-0-2026-31414)
Vulnerability from cvelistv5
Published
2026-04-13 13:21
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_expect: use expect->helper
Use expect->helper in ctnetlink and /proc to dump the helper name.
Using nfct_help() without holding a reference to the master conntrack
is unsafe.
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an explicit helper when creating an expectation to retain the existing
behaviour. The ctnetlink expectation path holds the reference on the
master conntrack and nf_conntrack_expect lock and the nfnetlink glue
path refers to the master ct that is attached to the skb.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2024-58011 (GCVE-0-2024-58011)
Vulnerability from cvelistv5
Published
2025-02-27 02:12
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: int3472: Check for adev == NULL
Not all devices have an ACPI companion fwnode, so adev might be NULL. This
can e.g. (theoretically) happen when a user manually binds one of
the int3472 drivers to another i2c/platform device through sysfs.
Add a check for adev not being set and return -ENODEV in that case to
avoid a possible NULL pointer deref in skl_int3472_get_acpi_buffer().
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-21925 (GCVE-0-2025-21925)
Vulnerability from cvelistv5
Published
2025-04-01 15:40
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
llc: do not use skb_get() before dev_queue_xmit()
syzbot is able to crash hosts [1], using llc and devices
not supporting IFF_TX_SKB_SHARING.
In this case, e1000 driver calls eth_skb_pad(), while
the skb is shared.
Simply replace skb_get() by skb_clone() in net/llc/llc_s_ac.c
Note that e1000 driver might have an issue with pktgen,
because it does not clear IFF_TX_SKB_SHARING, this is an
orthogonal change.
We need to audit other skb_get() uses in net/llc.
[1]
kernel BUG at net/core/skbuff.c:2178 !
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 16371 Comm: syz.2.2764 Not tainted 6.14.0-rc4-syzkaller-00052-gac9c34d1e45a #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:pskb_expand_head+0x6ce/0x1240 net/core/skbuff.c:2178
Call Trace:
<TASK>
__skb_pad+0x18a/0x610 net/core/skbuff.c:2466
__skb_put_padto include/linux/skbuff.h:3843 [inline]
skb_put_padto include/linux/skbuff.h:3862 [inline]
eth_skb_pad include/linux/etherdevice.h:656 [inline]
e1000_xmit_frame+0x2d99/0x5800 drivers/net/ethernet/intel/e1000/e1000_main.c:3128
__netdev_start_xmit include/linux/netdevice.h:5151 [inline]
netdev_start_xmit include/linux/netdevice.h:5160 [inline]
xmit_one net/core/dev.c:3806 [inline]
dev_hard_start_xmit+0x9a/0x7b0 net/core/dev.c:3822
sch_direct_xmit+0x1ae/0xc30 net/sched/sch_generic.c:343
__dev_xmit_skb net/core/dev.c:4045 [inline]
__dev_queue_xmit+0x13d4/0x43e0 net/core/dev.c:4621
dev_queue_xmit include/linux/netdevice.h:3313 [inline]
llc_sap_action_send_test_c+0x268/0x320 net/llc/llc_s_ac.c:144
llc_exec_sap_trans_actions net/llc/llc_sap.c:153 [inline]
llc_sap_next_state net/llc/llc_sap.c:182 [inline]
llc_sap_state_process+0x239/0x510 net/llc/llc_sap.c:209
llc_ui_sendmsg+0xd0d/0x14e0 net/llc/af_llc.c:993
sock_sendmsg_nosec net/socket.c:718 [inline]
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2026-43025 (GCVE-0-2026-43025)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-08-05 12:25
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: ignore explicit helper on new expectations
Use the existing master conntrack helper, anything else is not really
supported and it just makes validation more complicated, so just ignore
what helper userspace suggests for this expectation.
This was uncovered when validating CTA_EXPECT_CLASS via different helper
provided by userspace than the existing master conntrack helper:
BUG: KASAN: slab-out-of-bounds in nf_ct_expect_related_report+0x2479/0x27c0
Read of size 4 at addr ffff8880043fe408 by task poc/102
Call Trace:
nf_ct_expect_related_report+0x2479/0x27c0
ctnetlink_create_expect+0x22b/0x3b0
ctnetlink_new_expect+0x4bd/0x5c0
nfnetlink_rcv_msg+0x67a/0x950
netlink_rcv_skb+0x120/0x350
Allowing to read kernel memory bytes off the expectation boundary.
CTA_EXPECT_HELP_NAME is still used to offer the helper name to userspace
via netlink dump.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bd0779370588386e4a67ba5d0b176cfded8e6a53 Version: bd0779370588386e4a67ba5d0b176cfded8e6a53 Version: bd0779370588386e4a67ba5d0b176cfded8e6a53 Version: bd0779370588386e4a67ba5d0b176cfded8e6a53 Version: bd0779370588386e4a67ba5d0b176cfded8e6a53 Version: bd0779370588386e4a67ba5d0b176cfded8e6a53 |
||
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CVE-2026-23434 (GCVE-0-2026-23434)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mtd: rawnand: serialize lock/unlock against other NAND operations
nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area
without holding the NAND device lock. On controllers that implement
SET_FEATURES via multiple low-level PIO commands, these can race with
concurrent UBI/UBIFS background erase/write operations that hold the
device lock, resulting in cmd_pending conflicts on the NAND controller.
Add nand_get_device()/nand_release_device() around the lock/unlock
operations to serialize them against all other NAND controller access.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088 |
||
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CVE-2025-68820 (GCVE-0-2025-68820)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: xattr: fix null pointer deref in ext4_raw_inode()
If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),
iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()
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in ext4_raw_inode(), called right after ext4_get_inode_loc().
Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
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CVE-2026-31431 (GCVE-0-2026-31431)
Vulnerability from cvelistv5
Published
2026-04-22 08:15
Modified
2026-08-21 12:13
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: algif_aead - Revert to operating out-of-place
This mostly reverts commit 72548b093ee3 except for the copying of
the associated data.
There is no benefit in operating in-place in algif_aead since the
source and destination come from different mappings. Get rid of
all the complexity added for in-place operation and just copy the
AD directly.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 Version: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 |
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CVE-2026-46174 (GCVE-0-2026-46174)
Vulnerability from cvelistv5
Published
2026-05-28 09:36
Modified
2026-08-05 12:30
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
Make sure resources are not improperly shared in the op cache and
cause instruction corruption this way.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: 5abd1583e06b3963e5c9d915760367de86808b78 Version: 4ba461d426490b6ed7e8298c4d3b7a13aa5d2686 Version: 5a63725cd18fcee2af6ec46ccb856b64ad3077b4 Version: 3.16.58 ≤ Version: 4.4.144 ≤ Version: 4.9.102 ≤ |
||
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CVE-2025-39964 (GCVE-0-2025-39964)
Vulnerability from cvelistv5
Published
2025-10-13 13:48
Modified
2026-08-05 12:06
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
Issuing two writes to the same af_alg socket is bogus as the
data will be interleaved in an unpredictable fashion. Furthermore,
concurrent writes may create inconsistencies in the internal
socket state.
Disallow this by adding a new ctx->write field that indiciates
exclusive ownership for writing.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 |
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CVE-2021-41617 (GCVE-0-2021-41617)
Vulnerability from cvelistv5
Published
2021-09-26 00:00
Modified
2026-07-14 11:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-39980 (GCVE-0-2025-39980)
Vulnerability from cvelistv5
Published
2025-10-15 07:56
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nexthop: Forbid FDB status change while nexthop is in a group
The kernel forbids the creation of non-FDB nexthop groups with FDB
nexthops:
# ip nexthop add id 1 via 192.0.2.1 fdb
# ip nexthop add id 2 group 1
Error: Non FDB nexthop group cannot have fdb nexthops.
And vice versa:
# ip nexthop add id 3 via 192.0.2.2 dev dummy1
# ip nexthop add id 4 group 3 fdb
Error: FDB nexthop group can only have fdb nexthops.
However, as long as no routes are pointing to a non-FDB nexthop group,
the kernel allows changing the type of a nexthop from FDB to non-FDB and
vice versa:
# ip nexthop add id 5 via 192.0.2.2 dev dummy1
# ip nexthop add id 6 group 5
# ip nexthop replace id 5 via 192.0.2.2 fdb
# echo $?
0
This configuration is invalid and can result in a NPD [1] since FDB
nexthops are not associated with a nexthop device:
# ip route add 198.51.100.1/32 nhid 6
# ping 198.51.100.1
Fix by preventing nexthop FDB status change while the nexthop is in a
group:
# ip nexthop add id 7 via 192.0.2.2 dev dummy1
# ip nexthop add id 8 group 7
# ip nexthop replace id 7 via 192.0.2.2 fdb
Error: Cannot change nexthop FDB status while in a group.
[1]
BUG: kernel NULL pointer dereference, address: 00000000000003c0
[...]
Oops: Oops: 0000 [#1] SMP
CPU: 6 UID: 0 PID: 367 Comm: ping Not tainted 6.17.0-rc6-virtme-gb65678cacc03 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc41 04/01/2014
RIP: 0010:fib_lookup_good_nhc+0x1e/0x80
[...]
Call Trace:
<TASK>
fib_table_lookup+0x541/0x650
ip_route_output_key_hash_rcu+0x2ea/0x970
ip_route_output_key_hash+0x55/0x80
__ip4_datagram_connect+0x250/0x330
udp_connect+0x2b/0x60
__sys_connect+0x9c/0xd0
__x64_sys_connect+0x18/0x20
do_syscall_64+0xa4/0x2a0
entry_SYSCALL_64_after_hwframe+0x4b/0x53
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 38428d68719c454d269cb03b776d8a4b0ad66111 Version: 38428d68719c454d269cb03b776d8a4b0ad66111 Version: 38428d68719c454d269cb03b776d8a4b0ad66111 Version: 38428d68719c454d269cb03b776d8a4b0ad66111 Version: 38428d68719c454d269cb03b776d8a4b0ad66111 Version: 38428d68719c454d269cb03b776d8a4b0ad66111 Version: 38428d68719c454d269cb03b776d8a4b0ad66111 |
||
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CVE-2025-71086 (GCVE-0-2025-71086)
Vulnerability from cvelistv5
Published
2026-01-13 15:34
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: rose: fix invalid array index in rose_kill_by_device()
rose_kill_by_device() collects sockets into a local array[] and then
iterates over them to disconnect sockets bound to a device being brought
down.
The loop mistakenly indexes array[cnt] instead of array[i]. For cnt <
ARRAY_SIZE(array), this reads an uninitialized entry; for cnt ==
ARRAY_SIZE(array), it is an out-of-bounds read. Either case can lead to
an invalid socket pointer dereference and also leaks references taken
via sock_hold().
Fix the index to use i.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 12e5a4719c99d7f4104e7e962393dfb8baa1c591 Version: c0e527c532a07556ca44642f5873b002c44da22c Version: 3e0d1585799d8a991eba9678f297fd78d9f1846e Version: ffced26692f83212aa09d0ece0213b23cc2f611d Version: 64b8bc7d5f1434c636a40bdcfcd42b278d1714be Version: 64b8bc7d5f1434c636a40bdcfcd42b278d1714be Version: 64b8bc7d5f1434c636a40bdcfcd42b278d1714be Version: bd7de4734535140fda33240c2335a07fdab6f88e Version: b10265532df7bc3666bc53261b7f03f0fd14b1c9 Version: 5.10.206 ≤ Version: 5.15.146 ≤ Version: 6.1.70 ≤ Version: 6.6.9 ≤ Version: 4.19.304 ≤ Version: 5.4.266 ≤ |
||
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CVE-2026-23439 (GCVE-0-2026-23439)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
udp_tunnel: fix NULL deref caused by udp_sock_create6 when CONFIG_IPV6=n
When CONFIG_IPV6 is disabled, the udp_sock_create6() function returns 0
(success) without actually creating a socket. Callers such as
fou_create() then proceed to dereference the uninitialized socket
pointer, resulting in a NULL pointer dereference.
The captured NULL deref crash:
BUG: kernel NULL pointer dereference, address: 0000000000000018
RIP: 0010:fou_nl_add_doit (net/ipv4/fou_core.c:590 net/ipv4/fou_core.c:764)
[...]
Call Trace:
<TASK>
genl_family_rcv_msg_doit.constprop.0 (net/netlink/genetlink.c:1114)
genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[...]
netlink_rcv_skb (net/netlink/af_netlink.c:2550)
genl_rcv (net/netlink/genetlink.c:1219)
netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
netlink_sendmsg (net/netlink/af_netlink.c:1894)
__sock_sendmsg (net/socket.c:727 (discriminator 1) net/socket.c:742 (discriminator 1))
__sys_sendto (./include/linux/file.h:62 (discriminator 1) ./include/linux/file.h:83 (discriminator 1) net/socket.c:2183 (discriminator 1))
__x64_sys_sendto (net/socket.c:2213 (discriminator 1) net/socket.c:2209 (discriminator 1) net/socket.c:2209 (discriminator 1))
do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
entry_SYSCALL_64_after_hwframe (net/arch/x86/entry/entry_64.S:130)
This patch makes udp_sock_create6 return -EPFNOSUPPORT instead, so
callers correctly take their error paths. There is only one caller of
the vulnerable function and only privileged users can trigger it.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 Version: fd384412e199b62c3ddaabd18dce86d0e164c5b9 |
||
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CVE-2026-23270 (GCVE-0-2026-23270)
Vulnerability from cvelistv5
Published
2026-03-18 17:54
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks
As Paolo said earlier [1]:
"Since the blamed commit below, classify can return TC_ACT_CONSUMED while
the current skb being held by the defragmentation engine. As reported by
GangMin Kim, if such packet is that may cause a UaF when the defrag engine
later on tries to tuch again such packet."
act_ct was never meant to be used in the egress path, however some users
are attaching it to egress today [2]. Attempting to reach a middle
ground, we noticed that, while most qdiscs are not handling
TC_ACT_CONSUMED, clsact/ingress qdiscs are. With that in mind, we
address the issue by only allowing act_ct to bind to clsact/ingress
qdiscs and shared blocks. That way it's still possible to attach act_ct to
egress (albeit only with clsact).
[1] https://lore.kernel.org/netdev/674b8cbfc385c6f37fb29a1de08d8fe5c2b0fbee.1771321118.git.pabeni@redhat.com/
[2] https://lore.kernel.org/netdev/cc6bfb4a-4a2b-42d8-b9ce-7ef6644fb22b@ovn.org/
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 172ba7d46c202e679f3ccb10264c67416aaeb1c4 Version: 0b5b831122fc3789fff75be433ba3e4dd7b779d4 Version: 73f7da5fd124f2cda9161e2e46114915e6e82e97 Version: 3f14b377d01d8357eba032b4cabc8c1149b458b6 Version: 3f14b377d01d8357eba032b4cabc8c1149b458b6 Version: 3f14b377d01d8357eba032b4cabc8c1149b458b6 Version: 3f14b377d01d8357eba032b4cabc8c1149b458b6 Version: f5346df0591d10bc948761ca854b1fae6d2ef441 Version: 5.15.148 ≤ Version: 6.1.75 ≤ Version: 6.6.14 ≤ Version: 6.7.2 ≤ |
||
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CVE-2026-31452 (GCVE-0-2026-31452)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: convert inline data to extents when truncate exceeds inline size
Add a check in ext4_setattr() to convert files from inline data storage
to extent-based storage when truncate() grows the file size beyond the
inline capacity. This prevents the filesystem from entering an
inconsistent state where the inline data flag is set but the file size
exceeds what can be stored inline.
Without this fix, the following sequence causes a kernel BUG_ON():
1. Mount filesystem with inode that has inline flag set and small size
2. truncate(file, 50MB) - grows size but inline flag remains set
3. sendfile() attempts to write data
4. ext4_write_inline_data() hits BUG_ON(write_size > inline_capacity)
The crash occurs because ext4_write_inline_data() expects inline storage
to accommodate the write, but the actual inline capacity (~60 bytes for
i_block + ~96 bytes for xattrs) is far smaller than the file size and
write request.
The fix checks if the new size from setattr exceeds the inode's actual
inline capacity (EXT4_I(inode)->i_inline_size) and converts the file to
extent-based storage before proceeding with the size change.
This addresses the root cause by ensuring the inline data flag and file
size remain consistent during truncate operations.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 |
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CVE-2026-31448 (GCVE-0-2026-31448)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: avoid infinite loops caused by residual data
On the mkdir/mknod path, when mapping logical blocks to physical blocks,
if inserting a new extent into the extent tree fails (in this example,
because the file system disabled the huge file feature when marking the
inode as dirty), ext4_ext_map_blocks() only calls ext4_free_blocks() to
reclaim the physical block without deleting the corresponding data in
the extent tree. This causes subsequent mkdir operations to reference
the previously reclaimed physical block number again, even though this
physical block is already being used by the xattr block. Therefore, a
situation arises where both the directory and xattr are using the same
buffer head block in memory simultaneously.
The above causes ext4_xattr_block_set() to enter an infinite loop about
"inserted" and cannot release the inode lock, ultimately leading to the
143s blocking problem mentioned in [1].
If the metadata is corrupted, then trying to remove some extent space
can do even more harm. Also in case EXT4_GET_BLOCKS_DELALLOC_RESERVE
was passed, remove space wrongly update quota information.
Jan Kara suggests distinguishing between two cases:
1) The error is ENOSPC or EDQUOT - in this case the filesystem is fully
consistent and we must maintain its consistency including all the
accounting. However these errors can happen only early before we've
inserted the extent into the extent tree. So current code works correctly
for this case.
2) Some other error - this means metadata is corrupted. We should strive to
do as few modifications as possible to limit damage. So I'd just skip
freeing of allocated blocks.
[1]
INFO: task syz.0.17:5995 blocked for more than 143 seconds.
Call Trace:
inode_lock_nested include/linux/fs.h:1073 [inline]
__start_dirop fs/namei.c:2923 [inline]
start_dirop fs/namei.c:2934 [inline]
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 315054f023d28ee64f308adf8b5737831541776b Version: 315054f023d28ee64f308adf8b5737831541776b Version: 315054f023d28ee64f308adf8b5737831541776b Version: 315054f023d28ee64f308adf8b5737831541776b Version: 315054f023d28ee64f308adf8b5737831541776b Version: 315054f023d28ee64f308adf8b5737831541776b |
||
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CVE-2025-21702 (GCVE-0-2025-21702)
Vulnerability from cvelistv5
Published
2025-02-18 14:37
Modified
2026-08-05 11:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
pfifo_tail_enqueue: Drop new packet when sch->limit == 0
Expected behaviour:
In case we reach scheduler's limit, pfifo_tail_enqueue() will drop a
packet in scheduler's queue and decrease scheduler's qlen by one.
Then, pfifo_tail_enqueue() enqueue new packet and increase
scheduler's qlen by one. Finally, pfifo_tail_enqueue() return
`NET_XMIT_CN` status code.
Weird behaviour:
In case we set `sch->limit == 0` and trigger pfifo_tail_enqueue() on a
scheduler that has no packet, the 'drop a packet' step will do nothing.
This means the scheduler's qlen still has value equal 0.
Then, we continue to enqueue new packet and increase scheduler's qlen by
one. In summary, we can leverage pfifo_tail_enqueue() to increase qlen by
one and return `NET_XMIT_CN` status code.
The problem is:
Let's say we have two qdiscs: Qdisc_A and Qdisc_B.
- Qdisc_A's type must have '->graft()' function to create parent/child relationship.
Let's say Qdisc_A's type is `hfsc`. Enqueue packet to this qdisc will trigger `hfsc_enqueue`.
- Qdisc_B's type is pfifo_head_drop. Enqueue packet to this qdisc will trigger `pfifo_tail_enqueue`.
- Qdisc_B is configured to have `sch->limit == 0`.
- Qdisc_A is configured to route the enqueued's packet to Qdisc_B.
Enqueue packet through Qdisc_A will lead to:
- hfsc_enqueue(Qdisc_A) -> pfifo_tail_enqueue(Qdisc_B)
- Qdisc_B->q.qlen += 1
- pfifo_tail_enqueue() return `NET_XMIT_CN`
- hfsc_enqueue() check for `NET_XMIT_SUCCESS` and see `NET_XMIT_CN` => hfsc_enqueue() don't increase qlen of Qdisc_A.
The whole process lead to a situation where Qdisc_A->q.qlen == 0 and Qdisc_B->q.qlen == 1.
Replace 'hfsc' with other type (for example: 'drr') still lead to the same problem.
This violate the design where parent's qlen should equal to the sum of its childrens'qlen.
Bug impact: This issue can be used for user->kernel privilege escalation when it is reachable.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee Version: 57dbb2d83d100ea601c54fe129bfde0678db5dee |
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CVE-2025-21938 (GCVE-0-2025-21938)
Vulnerability from cvelistv5
Published
2025-04-01 15:41
Modified
2026-08-05 11:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr
If multiple connection requests attempt to create an implicit mptcp
endpoint in parallel, more than one caller may end up in
mptcp_pm_nl_append_new_local_addr because none found the address in
local_addr_list during their call to mptcp_pm_nl_get_local_id. In this
case, the concurrent new_local_addr calls may delete the address entry
created by the previous caller. These deletes use synchronize_rcu, but
this is not permitted in some of the contexts where this function may be
called. During packet recv, the caller may be in a rcu read critical
section and have preemption disabled.
An example stack:
BUG: scheduling while atomic: swapper/2/0/0x00000302
Call Trace:
<IRQ>
dump_stack_lvl (lib/dump_stack.c:117 (discriminator 1))
dump_stack (lib/dump_stack.c:124)
__schedule_bug (kernel/sched/core.c:5943)
schedule_debug.constprop.0 (arch/x86/include/asm/preempt.h:33 kernel/sched/core.c:5970)
__schedule (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:207 kernel/sched/features.h:29 kernel/sched/core.c:6621)
schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6804 kernel/sched/core.c:6818)
schedule_timeout (kernel/time/timer.c:2160)
wait_for_completion (kernel/sched/completion.c:96 kernel/sched/completion.c:116 kernel/sched/completion.c:127 kernel/sched/completion.c:148)
__wait_rcu_gp (include/linux/rcupdate.h:311 kernel/rcu/update.c:444)
synchronize_rcu (kernel/rcu/tree.c:3609)
mptcp_pm_nl_append_new_local_addr (net/mptcp/pm_netlink.c:966 net/mptcp/pm_netlink.c:1061)
mptcp_pm_nl_get_local_id (net/mptcp/pm_netlink.c:1164)
mptcp_pm_get_local_id (net/mptcp/pm.c:420)
subflow_check_req (net/mptcp/subflow.c:98 net/mptcp/subflow.c:213)
subflow_v4_route_req (net/mptcp/subflow.c:305)
tcp_conn_request (net/ipv4/tcp_input.c:7216)
subflow_v4_conn_request (net/mptcp/subflow.c:651)
tcp_rcv_state_process (net/ipv4/tcp_input.c:6709)
tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1934)
tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2334)
ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1))
ip_local_deliver_finish (include/linux/rcupdate.h:813 net/ipv4/ip_input.c:234)
ip_local_deliver (include/linux/netfilter.h:314 include/linux/netfilter.h:308 net/ipv4/ip_input.c:254)
ip_sublist_rcv_finish (include/net/dst.h:461 net/ipv4/ip_input.c:580)
ip_sublist_rcv (net/ipv4/ip_input.c:640)
ip_list_rcv (net/ipv4/ip_input.c:675)
__netif_receive_skb_list_core (net/core/dev.c:5583 net/core/dev.c:5631)
netif_receive_skb_list_internal (net/core/dev.c:5685 net/core/dev.c:5774)
napi_complete_done (include/linux/list.h:37 include/net/gro.h:449 include/net/gro.h:444 net/core/dev.c:6114)
igb_poll (drivers/net/ethernet/intel/igb/igb_main.c:8244) igb
__napi_poll (net/core/dev.c:6582)
net_rx_action (net/core/dev.c:6653 net/core/dev.c:6787)
handle_softirqs (kernel/softirq.c:553)
__irq_exit_rcu (kernel/softirq.c:588 kernel/softirq.c:427 kernel/softirq.c:636)
irq_exit_rcu (kernel/softirq.c:651)
common_interrupt (arch/x86/kernel/irq.c:247 (discriminator 14))
</IRQ>
This problem seems particularly prevalent if the user advertises an
endpoint that has a different external vs internal address. In the case
where the external address is advertised and multiple connections
already exist, multiple subflow SYNs arrive in parallel which tends to
trigger the race during creation of the first local_addr_list entries
which have the internal address instead.
Fix by skipping the replacement of an existing implicit local address if
called via mptcp_pm_nl_get_local_id.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix \u0027scheduling while atomic\u0027 in mptcp_pm_nl_append_new_local_addr\n\nIf multiple connection requests attempt to create an implicit mptcp\nendpoint in parallel, more than one caller may end up in\nmptcp_pm_nl_append_new_local_addr because none found the address in\nlocal_addr_list during their call to mptcp_pm_nl_get_local_id. In this\ncase, the concurrent new_local_addr calls may delete the address entry\ncreated by the previous caller. These deletes use synchronize_rcu, but\nthis is not permitted in some of the contexts where this function may be\ncalled. During packet recv, the caller may be in a rcu read critical\nsection and have preemption disabled.\n\nAn example stack:\n\n BUG: scheduling while atomic: swapper/2/0/0x00000302\n\n Call Trace:\n \u003cIRQ\u003e\n dump_stack_lvl (lib/dump_stack.c:117 (discriminator 1))\n dump_stack (lib/dump_stack.c:124)\n __schedule_bug (kernel/sched/core.c:5943)\n schedule_debug.constprop.0 (arch/x86/include/asm/preempt.h:33 kernel/sched/core.c:5970)\n __schedule (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:207 kernel/sched/features.h:29 kernel/sched/core.c:6621)\n schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6804 kernel/sched/core.c:6818)\n schedule_timeout (kernel/time/timer.c:2160)\n wait_for_completion (kernel/sched/completion.c:96 kernel/sched/completion.c:116 kernel/sched/completion.c:127 kernel/sched/completion.c:148)\n __wait_rcu_gp (include/linux/rcupdate.h:311 kernel/rcu/update.c:444)\n synchronize_rcu (kernel/rcu/tree.c:3609)\n mptcp_pm_nl_append_new_local_addr (net/mptcp/pm_netlink.c:966 net/mptcp/pm_netlink.c:1061)\n mptcp_pm_nl_get_local_id (net/mptcp/pm_netlink.c:1164)\n mptcp_pm_get_local_id (net/mptcp/pm.c:420)\n subflow_check_req (net/mptcp/subflow.c:98 net/mptcp/subflow.c:213)\n subflow_v4_route_req (net/mptcp/subflow.c:305)\n tcp_conn_request (net/ipv4/tcp_input.c:7216)\n subflow_v4_conn_request (net/mptcp/subflow.c:651)\n tcp_rcv_state_process (net/ipv4/tcp_input.c:6709)\n tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1934)\n tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2334)\n ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1))\n ip_local_deliver_finish (include/linux/rcupdate.h:813 net/ipv4/ip_input.c:234)\n ip_local_deliver (include/linux/netfilter.h:314 include/linux/netfilter.h:308 net/ipv4/ip_input.c:254)\n ip_sublist_rcv_finish (include/net/dst.h:461 net/ipv4/ip_input.c:580)\n ip_sublist_rcv (net/ipv4/ip_input.c:640)\n ip_list_rcv (net/ipv4/ip_input.c:675)\n __netif_receive_skb_list_core (net/core/dev.c:5583 net/core/dev.c:5631)\n netif_receive_skb_list_internal (net/core/dev.c:5685 net/core/dev.c:5774)\n napi_complete_done (include/linux/list.h:37 include/net/gro.h:449 include/net/gro.h:444 net/core/dev.c:6114)\n igb_poll (drivers/net/ethernet/intel/igb/igb_main.c:8244) igb\n __napi_poll (net/core/dev.c:6582)\n net_rx_action (net/core/dev.c:6653 net/core/dev.c:6787)\n handle_softirqs (kernel/softirq.c:553)\n __irq_exit_rcu (kernel/softirq.c:588 kernel/softirq.c:427 kernel/softirq.c:636)\n irq_exit_rcu (kernel/softirq.c:651)\n common_interrupt (arch/x86/kernel/irq.c:247 (discriminator 14))\n \u003c/IRQ\u003e\n\nThis problem seems particularly prevalent if the user advertises an\nendpoint that has a different external vs internal address. In the case\nwhere the external address is advertised and multiple connections\nalready exist, multiple subflow SYNs arrive in parallel which tends to\ntrigger the race during creation of the first local_addr_list entries\nwhich have the internal address instead.\n\nFix by skipping the replacement of an existing implicit local address if\ncalled via mptcp_pm_nl_get_local_id."
}
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{
"lang": "en",
"value": "AV:N - The vulnerable code executes directly in the TCP receive softirq path from a remote peer\u0027s MP_JOIN SYN packet (`tcp_v4_rcv` \u2192 `subflow_v4_conn_request` \u2192 `subflow_check_req` \u2192 `mptcp_pm_nl_get_local_id`). Any host able to reach an MPTCP listener over the network can drive it.\nAC:L - The attacker controls both sides of the race by emitting a burst of parallel MP_JOIN SYNs with distinct source ports, which RSS spreads across CPUs so multiple callers miss `__lookup_addr()` simultaneously; the commit states this race \"tends to trigger\" naturally under ordinary parallel subflow setup.\nPR:N - The only prerequisite is a valid MPTCP token, which any unauthenticated client obtains simply by completing an MP_CAPABLE handshake with the public listener. The vulnerable call happens in `subflow_check_req` before HMAC validation and before `mptcp_can_accept_new_subflow()`, so no kernel capability or application credential is involved.\nUI:N - The attacker only needs to send packets to a running MPTCP-enabled service; no action by any local user or administrator is required.\nS:U - The fault and its consequences are confined to the kernel\u0027s own security authority \u2014 the scheduler and RCU state of the affected host \u2014 with no crossing into a hypervisor, IOMMU, or other authority.\nC:N - This is a sleeping-in-atomic-context defect, not a memory-safety error; the endpoint teardown uses correct `list_del_rcu`/grace-period/free ordering under `pernet-\u003elock`, so no kernel memory is disclosed to the attacker.\nI:N - No out-of-bounds or use-after-free write primitive arises \u2014 the address-list entry replacement is fully serialized by `pernet-\u003elock` and the id bitmap accounting stays consistent, so the attacker gains no ability to modify kernel data.\nA:H - `synchronize_rcu()` runs from softirq with preemption disabled, producing a \"scheduling while atomic\" BUG and an illegal context switch off the idle task; under PREEMPT_RCU it is a self-deadlock because the blocked task is itself the RCU reader holding up the grace period, hanging the CPU and stalling RCU (kernel panic with `panic_on_rcu_stall`)."
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CVE-2026-31521 (GCVE-0-2026-31521)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
module: Fix kernel panic when a symbol st_shndx is out of bounds
The module loader doesn't check for bounds of the ELF section index in
simplify_symbols():
for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
const char *name = info->strtab + sym[i].st_name;
switch (sym[i].st_shndx) {
case SHN_COMMON:
[...]
default:
/* Divert to percpu allocation if a percpu var. */
if (sym[i].st_shndx == info->index.pcpu)
secbase = (unsigned long)mod_percpu(mod);
else
/** HERE --> **/ secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
sym[i].st_value += secbase;
break;
}
}
A symbol with an out-of-bounds st_shndx value, for example 0xffff
(known as SHN_XINDEX or SHN_HIRESERVE), may cause a kernel panic:
BUG: unable to handle page fault for address: ...
RIP: 0010:simplify_symbols+0x2b2/0x480
...
Kernel panic - not syncing: Fatal exception
This can happen when module ELF is legitimately using SHN_XINDEX or
when it is corrupted.
Add a bounds check in simplify_symbols() to validate that st_shndx is
within the valid range before using it.
This issue was discovered due to a bug in llvm-objcopy, see relevant
discussion for details [1].
[1] https://lore.kernel.org/linux-modules/20251224005752.201911-1-ihor.solodrai@linux.dev/
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2026-31518 (GCVE-0-2026-31518)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
esp: fix skb leak with espintcp and async crypto
When the TX queue for espintcp is full, esp_output_tail_tcp will
return an error and not free the skb, because with synchronous crypto,
the common xfrm output code will drop the packet for us.
With async crypto (esp_output_done), we need to drop the skb when
esp_output_tail_tcp returns an error.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 Version: e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
||
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CVE-2026-23475 (GCVE-0-2026-23475)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: fix statistics allocation
The controller per-cpu statistics is not allocated until after the
controller has been registered with driver core, which leaves a window
where accessing the sysfs attributes can trigger a NULL-pointer
dereference.
Fix this by moving the statistics allocation to controller allocation
while tying its lifetime to that of the controller (rather than using
implicit devres).
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 |
||
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CVE-2026-31546 (GCVE-0-2026-31546)
Vulnerability from cvelistv5
Published
2026-04-24 14:33
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: bonding: fix NULL deref in bond_debug_rlb_hash_show
rlb_clear_slave intentionally keeps RLB hash-table entries on
the rx_hashtbl_used_head list with slave set to NULL when no
replacement slave is available. However, bond_debug_rlb_hash_show
visites client_info->slave without checking if it's NULL.
Other used-list iterators in bond_alb.c already handle this NULL-slave
state safely:
- rlb_update_client returns early on !client_info->slave
- rlb_req_update_slave_clients, rlb_clear_slave, and rlb_rebalance
compare slave values before visiting
- lb_req_update_subnet_clients continues if slave is NULL
The following NULL deref crash can be trigger in
bond_debug_rlb_hash_show:
[ 1.289791] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 1.292058] RIP: 0010:bond_debug_rlb_hash_show (drivers/net/bonding/bond_debugfs.c:41)
[ 1.293101] RSP: 0018:ffffc900004a7d00 EFLAGS: 00010286
[ 1.293333] RAX: 0000000000000000 RBX: ffff888102b48200 RCX: ffff888102b48204
[ 1.293631] RDX: ffff888102b48200 RSI: ffffffff839daad5 RDI: ffff888102815078
[ 1.293924] RBP: ffff888102815078 R08: ffff888102b4820e R09: 0000000000000000
[ 1.294267] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888100f929c0
[ 1.294564] R13: ffff888100f92a00 R14: 0000000000000001 R15: ffffc900004a7ed8
[ 1.294864] FS: 0000000001395380(0000) GS:ffff888196e75000(0000) knlGS:0000000000000000
[ 1.295239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.295480] CR2: 0000000000000000 CR3: 0000000102adc004 CR4: 0000000000772ef0
[ 1.295897] Call Trace:
[ 1.296134] seq_read_iter (fs/seq_file.c:231)
[ 1.296341] seq_read (fs/seq_file.c:164)
[ 1.296493] full_proxy_read (fs/debugfs/file.c:378 (discriminator 1))
[ 1.296658] vfs_read (fs/read_write.c:572)
[ 1.296981] ksys_read (fs/read_write.c:717)
[ 1.297132] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1.297325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
Add a NULL check and print "(none)" for entries with no assigned slave.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 Version: caafa84251b886feb6cdf23d50e2cc99dcdaaaf3 |
||
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CVE-2025-68725 (GCVE-0-2025-68725)
Vulnerability from cvelistv5
Published
2025-12-24 10:33
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Do not let BPF test infra emit invalid GSO types to stack
Yinhao et al. reported that their fuzzer tool was able to trigger a
skb_warn_bad_offload() from netif_skb_features() -> gso_features_check().
When a BPF program - triggered via BPF test infra - pushes the packet
to the loopback device via bpf_clone_redirect() then mentioned offload
warning can be seen. GSO-related features are then rightfully disabled.
We get into this situation due to convert___skb_to_skb() setting
gso_segs and gso_size but not gso_type. Technically, it makes sense
that this warning triggers since the GSO properties are malformed due
to the gso_type. Potentially, the gso_type could be marked non-trustworthy
through setting it at least to SKB_GSO_DODGY without any other specific
assumptions, but that also feels wrong given we should not go further
into the GSO engine in the first place.
The checks were added in 121d57af308d ("gso: validate gso_type in GSO
handlers") because there were malicious (syzbot) senders that combine
a protocol with a non-matching gso_type. If we would want to drop such
packets, gso_features_check() currently only returns feature flags via
netif_skb_features(), so one location for potentially dropping such skbs
could be validate_xmit_unreadable_skb(), but then otoh it would be
an additional check in the fast-path for a very corner case. Given
bpf_clone_redirect() is the only place where BPF test infra could emit
such packets, lets reject them right there.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 850a88cc4096fe1df407452ba2e4d28cf5b3eee9 Version: 850a88cc4096fe1df407452ba2e4d28cf5b3eee9 Version: 850a88cc4096fe1df407452ba2e4d28cf5b3eee9 Version: 850a88cc4096fe1df407452ba2e4d28cf5b3eee9 Version: 850a88cc4096fe1df407452ba2e4d28cf5b3eee9 Version: 850a88cc4096fe1df407452ba2e4d28cf5b3eee9 Version: 850a88cc4096fe1df407452ba2e4d28cf5b3eee9 |
||
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CVE-2026-23458 (GCVE-0-2026-23458)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct()
ctnetlink_dump_exp_ct() stores a conntrack pointer in cb->data for the
netlink dump callback ctnetlink_exp_ct_dump_table(), but drops the
conntrack reference immediately after netlink_dump_start(). When the
dump spans multiple rounds, the second recvmsg() triggers the dump
callback which dereferences the now-freed conntrack via nfct_help(ct),
leading to a use-after-free on ct->ext.
The bug is that the netlink_dump_control has no .start or .done
callbacks to manage the conntrack reference across dump rounds. Other
dump functions in the same file (e.g. ctnetlink_get_conntrack) properly
use .start/.done callbacks for this purpose.
Fix this by adding .start and .done callbacks that hold and release the
conntrack reference for the duration of the dump, and move the
nfct_help() call after the cb->args[0] early-return check in the dump
callback to avoid dereferencing ct->ext unnecessarily.
BUG: KASAN: slab-use-after-free in ctnetlink_exp_ct_dump_table+0x4f/0x2e0
Read of size 8 at addr ffff88810597ebf0 by task ctnetlink_poc/133
CPU: 1 UID: 0 PID: 133 Comm: ctnetlink_poc Not tainted 7.0.0-rc2+ #3 PREEMPTLAZY
Call Trace:
<TASK>
ctnetlink_exp_ct_dump_table+0x4f/0x2e0
netlink_dump+0x333/0x880
netlink_recvmsg+0x3e2/0x4b0
? aa_sk_perm+0x184/0x450
sock_recvmsg+0xde/0xf0
Allocated by task 133:
kmem_cache_alloc_noprof+0x134/0x440
__nf_conntrack_alloc+0xa8/0x2b0
ctnetlink_create_conntrack+0xa1/0x900
ctnetlink_new_conntrack+0x3cf/0x7d0
nfnetlink_rcv_msg+0x48e/0x510
netlink_rcv_skb+0xc9/0x1f0
nfnetlink_rcv+0xdb/0x220
netlink_unicast+0x3ec/0x590
netlink_sendmsg+0x397/0x690
__sys_sendmsg+0xf4/0x180
Freed by task 0:
slab_free_after_rcu_debug+0xad/0x1e0
rcu_core+0x5c3/0x9c0
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 Version: e844a928431fa8f1359d1f4f2cef53d9b446bf52 |
||
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CVE-2026-43024 (GCVE-0-2026-43024)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: reject immediate NF_QUEUE verdict
nft_queue is always used from userspace nftables to deliver the NF_QUEUE
verdict. Immediately emitting an NF_QUEUE verdict is never used by the
userspace nft tools, so reject immediate NF_QUEUE verdicts.
The arp family does not provide queue support, but such an immediate
verdict is still reachable. Globally reject NF_QUEUE immediate verdicts
to address this issue.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 55a60251fa50d4e68175e36666b536a602ce4f6c Version: 960cf4f812530f01f6acc6878ceaa5404c06af7b Version: 8e34430e33b8a80bc014f3efe29cac76bc30a4b4 Version: 6653118b176a00915125521c6572ae8e507621db Version: f342de4e2f33e0e39165d8639387aa6c19dff660 Version: f342de4e2f33e0e39165d8639387aa6c19dff660 Version: f342de4e2f33e0e39165d8639387aa6c19dff660 Version: f342de4e2f33e0e39165d8639387aa6c19dff660 Version: 8365e9d92b85fda975a5ece7a3a139cb964018c8 Version: 4e66422f1b56149761dc76030e6345d1cca6f869 Version: f05a497e7bc8851eeeb3a58da180ba469efebb05 Version: 5.10.210 ≤ Version: 5.15.149 ≤ Version: 6.1.76 ≤ Version: 6.6.15 ≤ Version: 4.19.307 ≤ Version: 5.4.269 ≤ Version: 6.7.3 ≤ |
||
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CVE-2025-39871 (GCVE-0-2025-39871)
Vulnerability from cvelistv5
Published
2025-09-23 06:00
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Remove improper idxd_free
The call to idxd_free() introduces a duplicate put_device() leading to a
reference count underflow:
refcount_t: underflow; use-after-free.
WARNING: CPU: 15 PID: 4428 at lib/refcount.c:28 refcount_warn_saturate+0xbe/0x110
...
Call Trace:
<TASK>
idxd_remove+0xe4/0x120 [idxd]
pci_device_remove+0x3f/0xb0
device_release_driver_internal+0x197/0x200
driver_detach+0x48/0x90
bus_remove_driver+0x74/0xf0
pci_unregister_driver+0x2e/0xb0
idxd_exit_module+0x34/0x7a0 [idxd]
__do_sys_delete_module.constprop.0+0x183/0x280
do_syscall_64+0x54/0xd70
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The idxd_unregister_devices() which is invoked at the very beginning of
idxd_remove(), already takes care of the necessary put_device() through the
following call path:
idxd_unregister_devices() -> device_unregister() -> put_device()
In addition, when CONFIG_DEBUG_KOBJECT_RELEASE is enabled, put_device() may
trigger asynchronous cleanup via schedule_delayed_work(). If idxd_free() is
called immediately after, it can result in a use-after-free.
Remove the improper idxd_free() to avoid both the refcount underflow and
potential memory corruption during module unload.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 68ac5a01f635b3791196fd1c39bc48497252c36f Version: d2d05fd0fc95c4defed6f7b87550e20e8baa1d97 Version: 21f9f5cd9a0c75084d4369ba0b8c4f695c41dea7 Version: d5449ff1b04dfe9ed8e455769aa01e4c2ccf6805 Version: d5449ff1b04dfe9ed8e455769aa01e4c2ccf6805 Version: 2b7a961cea0e5b65afda911f76d14fec5c98d024 Version: 6.1.140 ≤ Version: 6.6.92 ≤ Version: 6.12.30 ≤ Version: 6.14.8 ≤ |
||
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CVE-2025-71075 (GCVE-0-2025-71075)
Vulnerability from cvelistv5
Published
2026-01-13 15:31
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: aic94xx: fix use-after-free in device removal path
The asd_pci_remove() function fails to synchronize with pending tasklets
before freeing the asd_ha structure, leading to a potential
use-after-free vulnerability.
When a device removal is triggered (via hot-unplug or module unload),
race condition can occur.
The fix adds tasklet_kill() before freeing the asd_ha structure,
ensuring all scheduled tasklets complete before cleanup proceeds.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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||
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CVE-2025-37964 (GCVE-0-2025-37964)
Vulnerability from cvelistv5
Published
2025-05-20 16:01
Modified
2026-08-05 11:58
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/mm: Eliminate window where TLB flushes may be inadvertently skipped
tl;dr: There is a window in the mm switching code where the new CR3 is
set and the CPU should be getting TLB flushes for the new mm. But
should_flush_tlb() has a bug and suppresses the flush. Fix it by
widening the window where should_flush_tlb() sends an IPI.
Long Version:
=== History ===
There were a few things leading up to this.
First, updating mm_cpumask() was observed to be too expensive, so it was
made lazier. But being lazy caused too many unnecessary IPIs to CPUs
due to the now-lazy mm_cpumask(). So code was added to cull
mm_cpumask() periodically[2]. But that culling was a bit too aggressive
and skipped sending TLB flushes to CPUs that need them. So here we are
again.
=== Problem ===
The too-aggressive code in should_flush_tlb() strikes in this window:
// Turn on IPIs for this CPU/mm combination, but only
// if should_flush_tlb() agrees:
cpumask_set_cpu(cpu, mm_cpumask(next));
next_tlb_gen = atomic64_read(&next->context.tlb_gen);
choose_new_asid(next, next_tlb_gen, &new_asid, &need_flush);
load_new_mm_cr3(need_flush);
// ^ After 'need_flush' is set to false, IPIs *MUST*
// be sent to this CPU and not be ignored.
this_cpu_write(cpu_tlbstate.loaded_mm, next);
// ^ Not until this point does should_flush_tlb()
// become true!
should_flush_tlb() will suppress TLB flushes between load_new_mm_cr3()
and writing to 'loaded_mm', which is a window where they should not be
suppressed. Whoops.
=== Solution ===
Thankfully, the fuzzy "just about to write CR3" window is already marked
with loaded_mm==LOADED_MM_SWITCHING. Simply checking for that state in
should_flush_tlb() is sufficient to ensure that the CPU is targeted with
an IPI.
This will cause more TLB flush IPIs. But the window is relatively small
and I do not expect this to cause any kind of measurable performance
impact.
Update the comment where LOADED_MM_SWITCHING is written since it grew
yet another user.
Peter Z also raised a concern that should_flush_tlb() might not observe
'loaded_mm' and 'is_lazy' in the same order that switch_mm_irqs_off()
writes them. Add a barrier to ensure that they are observed in the
order they are written.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2025-22090 (GCVE-0-2025-22090)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-08-05 11:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/mm/pat: Fix VM_PAT handling when fork() fails in copy_page_range()
If track_pfn_copy() fails, we already added the dst VMA to the maple
tree. As fork() fails, we'll cleanup the maple tree, and stumble over
the dst VMA for which we neither performed any reservation nor copied
any page tables.
Consequently untrack_pfn() will see VM_PAT and try obtaining the
PAT information from the page table -- which fails because the page
table was not copied.
The easiest fix would be to simply clear the VM_PAT flag of the dst VMA
if track_pfn_copy() fails. However, the whole thing is about "simply"
clearing the VM_PAT flag is shaky as well: if we passed track_pfn_copy()
and performed a reservation, but copying the page tables fails, we'll
simply clear the VM_PAT flag, not properly undoing the reservation ...
which is also wrong.
So let's fix it properly: set the VM_PAT flag only if the reservation
succeeded (leaving it clear initially), and undo the reservation if
anything goes wrong while copying the page tables: clearing the VM_PAT
flag after undoing the reservation.
Note that any copied page table entries will get zapped when the VMA will
get removed later, after copy_page_range() succeeded; as VM_PAT is not set
then, we won't try cleaning VM_PAT up once more and untrack_pfn() will be
happy. Note that leaving these page tables in place without a reservation
is not a problem, as we are aborting fork(); this process will never run.
A reproducer can trigger this usually at the first try:
https://gitlab.com/davidhildenbrand/scratchspace/-/raw/main/reproducers/pat_fork.c
WARNING: CPU: 26 PID: 11650 at arch/x86/mm/pat/memtype.c:983 get_pat_info+0xf6/0x110
Modules linked in: ...
CPU: 26 UID: 0 PID: 11650 Comm: repro3 Not tainted 6.12.0-rc5+ #92
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014
RIP: 0010:get_pat_info+0xf6/0x110
...
Call Trace:
<TASK>
...
untrack_pfn+0x52/0x110
unmap_single_vma+0xa6/0xe0
unmap_vmas+0x105/0x1f0
exit_mmap+0xf6/0x460
__mmput+0x4b/0x120
copy_process+0x1bf6/0x2aa0
kernel_clone+0xab/0x440
__do_sys_clone+0x66/0x90
do_syscall_64+0x95/0x180
Likely this case was missed in:
d155df53f310 ("x86/mm/pat: clear VM_PAT if copy_p4d_range failed")
... and instead of undoing the reservation we simply cleared the VM_PAT flag.
Keep the documentation of these functions in include/linux/pgtable.h,
one place is more than sufficient -- we should clean that up for the other
functions like track_pfn_remap/untrack_pfn separately.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2ab640379a0ab4cef746ced1d7e04a0941774bcb Version: 2ab640379a0ab4cef746ced1d7e04a0941774bcb Version: 2ab640379a0ab4cef746ced1d7e04a0941774bcb Version: 2ab640379a0ab4cef746ced1d7e04a0941774bcb Version: 2ab640379a0ab4cef746ced1d7e04a0941774bcb Version: 2ab640379a0ab4cef746ced1d7e04a0941774bcb |
||
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CVE-2025-21875 (GCVE-0-2025-21875)
Vulnerability from cvelistv5
Published
2025-03-27 14:57
Modified
2026-08-05 11:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: always handle address removal under msk socket lock
Syzkaller reported a lockdep splat in the PM control path:
WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 sock_owned_by_me include/net/sock.h:1711 [inline]
WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 msk_owned_by_me net/mptcp/protocol.h:363 [inline]
WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788
Modules linked in:
CPU: 0 UID: 0 PID: 6693 Comm: syz.0.205 Not tainted 6.14.0-rc2-syzkaller-00303-gad1b832bf1cf #0
Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:sock_owned_by_me include/net/sock.h:1711 [inline]
RIP: 0010:msk_owned_by_me net/mptcp/protocol.h:363 [inline]
RIP: 0010:mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788
Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 ca 7b d3 f5 eb b9 e8 c3 7b d3 f5 90 0f 0b 90 e9 dd fb ff ff e8 b5 7b d3 f5 90 <0f> 0b 90 e9 3e fb ff ff 44 89 f1 80 e1 07 38 c1 0f 8c eb fb ff ff
RSP: 0000:ffffc900034f6f60 EFLAGS: 00010283
RAX: ffffffff8bee3c2b RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90004d42000 RSI: 000000000000a407 RDI: 000000000000a408
RBP: ffffc900034f7030 R08: ffffffff8bee37f6 R09: 0100000000000000
R10: dffffc0000000000 R11: ffffed100bcc62e4 R12: ffff88805e6316e0
R13: ffff88805e630c00 R14: dffffc0000000000 R15: ffff88805e630c00
FS: 00007f7e9a7e96c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fd18ff8 CR3: 0000000032c24000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
mptcp_pm_remove_addr+0x103/0x1d0 net/mptcp/pm.c:59
mptcp_pm_remove_anno_addr+0x1f4/0x2f0 net/mptcp/pm_netlink.c:1486
mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_netlink.c:1518 [inline]
mptcp_pm_nl_del_addr_doit+0x118d/0x1af0 net/mptcp/pm_netlink.c:1629
genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0xb1f/0xec0 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2543
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348
netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:733
____sys_sendmsg+0x53a/0x860 net/socket.c:2573
___sys_sendmsg net/socket.c:2627 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2659
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7e9998cde9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7e9a7e9038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7e99ba5fa0 RCX: 00007f7e9998cde9
RDX: 000000002000c094 RSI: 0000400000000000 RDI: 0000000000000007
RBP: 00007f7e99a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7e99ba5fa0 R15: 00007fff49231088
Indeed the PM can try to send a RM_ADDR over a msk without acquiring
first the msk socket lock.
The bugged code-path comes from an early optimization: when there
are no subflows, the PM should (usually) not send RM_ADDR
notifications.
The above statement is incorrect, as without locks another process
could concur
---truncated---
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b6c08380860b926752d57c8fa9911fa388c4b876 Version: b6c08380860b926752d57c8fa9911fa388c4b876 Version: b6c08380860b926752d57c8fa9911fa388c4b876 Version: b6c08380860b926752d57c8fa9911fa388c4b876 Version: b6c08380860b926752d57c8fa9911fa388c4b876 Version: b6c08380860b926752d57c8fa9911fa388c4b876 Version: b6c08380860b926752d57c8fa9911fa388c4b876 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: always handle address removal under msk socket lock\n\nSyzkaller reported a lockdep splat in the PM control path:\n\n WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 sock_owned_by_me include/net/sock.h:1711 [inline]\n WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 msk_owned_by_me net/mptcp/protocol.h:363 [inline]\n WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788\n Modules linked in:\n CPU: 0 UID: 0 PID: 6693 Comm: syz.0.205 Not tainted 6.14.0-rc2-syzkaller-00303-gad1b832bf1cf #0\n Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024\n RIP: 0010:sock_owned_by_me include/net/sock.h:1711 [inline]\n RIP: 0010:msk_owned_by_me net/mptcp/protocol.h:363 [inline]\n RIP: 0010:mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788\n Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 ca 7b d3 f5 eb b9 e8 c3 7b d3 f5 90 0f 0b 90 e9 dd fb ff ff e8 b5 7b d3 f5 90 \u003c0f\u003e 0b 90 e9 3e fb ff ff 44 89 f1 80 e1 07 38 c1 0f 8c eb fb ff ff\n RSP: 0000:ffffc900034f6f60 EFLAGS: 00010283\n RAX: ffffffff8bee3c2b RBX: 0000000000000001 RCX: 0000000000080000\n RDX: ffffc90004d42000 RSI: 000000000000a407 RDI: 000000000000a408\n RBP: ffffc900034f7030 R08: ffffffff8bee37f6 R09: 0100000000000000\n R10: dffffc0000000000 R11: ffffed100bcc62e4 R12: ffff88805e6316e0\n R13: ffff88805e630c00 R14: dffffc0000000000 R15: ffff88805e630c00\n FS: 00007f7e9a7e96c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000001b2fd18ff8 CR3: 0000000032c24000 CR4: 00000000003526f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n \u003cTASK\u003e\n mptcp_pm_remove_addr+0x103/0x1d0 net/mptcp/pm.c:59\n mptcp_pm_remove_anno_addr+0x1f4/0x2f0 net/mptcp/pm_netlink.c:1486\n mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_netlink.c:1518 [inline]\n mptcp_pm_nl_del_addr_doit+0x118d/0x1af0 net/mptcp/pm_netlink.c:1629\n genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]\n genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]\n genl_rcv_msg+0xb1f/0xec0 net/netlink/genetlink.c:1210\n netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2543\n genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219\n netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]\n netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348\n netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1892\n sock_sendmsg_nosec net/socket.c:718 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:733\n ____sys_sendmsg+0x53a/0x860 net/socket.c:2573\n ___sys_sendmsg net/socket.c:2627 [inline]\n __sys_sendmsg+0x269/0x350 net/socket.c:2659\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7f7e9998cde9\n Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\n RSP: 002b:00007f7e9a7e9038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n RAX: ffffffffffffffda RBX: 00007f7e99ba5fa0 RCX: 00007f7e9998cde9\n RDX: 000000002000c094 RSI: 0000400000000000 RDI: 0000000000000007\n RBP: 00007f7e99a0e2a0 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\n R13: 0000000000000000 R14: 00007f7e99ba5fa0 R15: 00007fff49231088\n\nIndeed the PM can try to send a RM_ADDR over a msk without acquiring\nfirst the msk socket lock.\n\nThe bugged code-path comes from an early optimization: when there\nare no subflows, the PM should (usually) not send RM_ADDR\nnotifications.\n\nThe above statement is incorrect, as without locks another process\ncould concur\n---truncated---"
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"value": "AV:L - The vulnerability is triggered by the MPTCP_PM_CMD_DEL_ADDR generic-netlink command (`mptcp_pm_nl_del_addr_doit`), which requires a local AF_NETLINK socket; the racing subflow churn is likewise driven locally over loopback. No remote peer can reach this path on its own.\nAC:L - The attacker controls both sides of the race \u2014 one thread spams DEL_ADDR/ADD_ADDR netlink commands while another creates and tears down MPTCP subflows in the same namespace, both in tight loops. Syzkaller hit it by blind fuzzing, and no special configuration is required since kernel PM and MPTCP are enabled by default.\nPR:L - MPTCP_PM_CMD_DEL_ADDR carries GENL_UNS_ADMIN_PERM, enforced as `netlink_ns_capable(skb, net-\u003euser_ns, CAP_NET_ADMIN)`, which any unprivileged user obtains via `unshare -Urn`; MPTCP socket creation and the token iterator are per-netns and need no privilege.\nUI:N - The attacker drives both the netlink command and the subflow lifecycle entirely from their own processes. No victim action is involved.\nS:U - The corruption is confined to kernel memory within the same security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The unlocked `mptcp_for_each_subflow()` walk reads `struct mptcp_subflow_context` fields (including `tcp_sock`) from memory that a concurrent `__mptcp_close_ssk()` may have freed, and the netlink path holds no RCU read lock to defer the `kfree_rcu`. A use-after-free over a heap-groomable object gives attacker-influenced read of kernel memory.\nI:H - The stale `subflow-\u003etcp_sock` pointer is passed to `lock_sock_fast()` and `__mptcp_subflow_send_ack()`, producing writes through a freed/reallocated object; the concurrent `list_del`/`list_add_tail` against an unsynchronized traversal additionally corrupts the conn_list linkage.\nA:H - The reported symptom is a `sock_owned_by_me()` WARN, which panics outright on `panic_on_warn` systems, and following a `LIST_POISON1` pointer or a freed subflow context oopses the kernel. Any use-after-free of this kind reliably crashes the machine."
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CVE-2024-47736 (GCVE-0-2024-47736)
Vulnerability from cvelistv5
Published
2024-10-21 12:14
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
erofs: handle overlapped pclusters out of crafted images properly
syzbot reported a task hang issue due to a deadlock case where it is
waiting for the folio lock of a cached folio that will be used for
cache I/Os.
After looking into the crafted fuzzed image, I found it's formed with
several overlapped big pclusters as below:
Ext: logical offset | length : physical offset | length
0: 0.. 16384 | 16384 : 151552.. 167936 | 16384
1: 16384.. 32768 | 16384 : 155648.. 172032 | 16384
2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384
...
Here, extent 0/1 are physically overlapped although it's entirely
_impossible_ for normal filesystem images generated by mkfs.
First, managed folios containing compressed data will be marked as
up-to-date and then unlocked immediately (unlike in-place folios) when
compressed I/Os are complete. If physical blocks are not submitted in
the incremental order, there should be separate BIOs to avoid dependency
issues. However, the current code mis-arranges z_erofs_fill_bio_vec()
and BIO submission which causes unexpected BIO waits.
Second, managed folios will be connected to their own pclusters for
efficient inter-queries. However, this is somewhat hard to implement
easily if overlapped big pclusters exist. Again, these only appear in
fuzzed images so let's simply fall back to temporary short-lived pages
for correctness.
Additionally, it justifies that referenced managed folios cannot be
truncated for now and reverts part of commit 2080ca1ed3e4 ("erofs: tidy
up `struct z_erofs_bvec`") for simplicity although it shouldn't be any
difference.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-43011 (GCVE-0-2026-43011)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-08-05 12:25
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/x25: Fix potential double free of skb
When alloc_skb fails in x25_queue_rx_frame it calls kfree_skb(skb) at
line 48 and returns 1 (error).
This error propagates back through the call chain:
x25_queue_rx_frame returns 1
|
v
x25_state3_machine receives the return value 1 and takes the else
branch at line 278, setting queued=0 and returning 0
|
v
x25_process_rx_frame returns queued=0
|
v
x25_backlog_rcv at line 452 sees queued=0 and calls kfree_skb(skb)
again
This would free the same skb twice. Looking at x25_backlog_rcv:
net/x25/x25_in.c:x25_backlog_rcv() {
...
queued = x25_process_rx_frame(sk, skb);
...
if (!queued)
kfree_skb(skb);
}
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2026-23446 (GCVE-0-2026-23446)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: usb: aqc111: Do not perform PM inside suspend callback
syzbot reports "task hung in rpm_resume"
This is caused by aqc111_suspend calling
the PM variant of its write_cmd routine.
The simplified call trace looks like this:
rpm_suspend()
usb_suspend_both() - here udev->dev.power.runtime_status == RPM_SUSPENDING
aqc111_suspend() - called for the usb device interface
aqc111_write32_cmd()
usb_autopm_get_interface()
pm_runtime_resume_and_get()
rpm_resume() - here we call rpm_resume() on our parent
rpm_resume() - Here we wait for a status change that will never happen.
At this point we block another task which holds
rtnl_lock and locks up the whole networking stack.
Fix this by replacing the write_cmd calls with their _nopm variants
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Version: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc |
||
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CVE-2024-57977 (GCVE-0-2024-57977)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
memcg: fix soft lockup in the OOM process
A soft lockup issue was found in the product with about 56,000 tasks were
in the OOM cgroup, it was traversing them when the soft lockup was
triggered.
watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [VM Thread:1503066]
CPU: 2 PID: 1503066 Comm: VM Thread Kdump: loaded Tainted: G
Hardware name: Huawei Cloud OpenStack Nova, BIOS
RIP: 0010:console_unlock+0x343/0x540
RSP: 0000:ffffb751447db9a0 EFLAGS: 00000247 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ffffffff
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000247
RBP: ffffffffafc71f90 R08: 0000000000000000 R09: 0000000000000040
R10: 0000000000000080 R11: 0000000000000000 R12: ffffffffafc74bd0
R13: ffffffffaf60a220 R14: 0000000000000247 R15: 0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2fe6ad91f0 CR3: 00000004b2076003 CR4: 0000000000360ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vprintk_emit+0x193/0x280
printk+0x52/0x6e
dump_task+0x114/0x130
mem_cgroup_scan_tasks+0x76/0x100
dump_header+0x1fe/0x210
oom_kill_process+0xd1/0x100
out_of_memory+0x125/0x570
mem_cgroup_out_of_memory+0xb5/0xd0
try_charge+0x720/0x770
mem_cgroup_try_charge+0x86/0x180
mem_cgroup_try_charge_delay+0x1c/0x40
do_anonymous_page+0xb5/0x390
handle_mm_fault+0xc4/0x1f0
This is because thousands of processes are in the OOM cgroup, it takes a
long time to traverse all of them. As a result, this lead to soft lockup
in the OOM process.
To fix this issue, call 'cond_resched' in the 'mem_cgroup_scan_tasks'
function per 1000 iterations. For global OOM, call
'touch_softlockup_watchdog' per 1000 iterations to avoid this issue.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 Version: 9cbb78bb314360a860a8b23723971cb6fcb54176 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemcg: fix soft lockup in the OOM process\n\nA soft lockup issue was found in the product with about 56,000 tasks were\nin the OOM cgroup, it was traversing them when the soft lockup was\ntriggered.\n\nwatchdog: BUG: soft lockup - CPU#2 stuck for 23s! [VM Thread:1503066]\nCPU: 2 PID: 1503066 Comm: VM Thread Kdump: loaded Tainted: G\nHardware name: Huawei Cloud OpenStack Nova, BIOS\nRIP: 0010:console_unlock+0x343/0x540\nRSP: 0000:ffffb751447db9a0 EFLAGS: 00000247 ORIG_RAX: ffffffffffffff13\nRAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ffffffff\nRDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000247\nRBP: ffffffffafc71f90 R08: 0000000000000000 R09: 0000000000000040\nR10: 0000000000000080 R11: 0000000000000000 R12: ffffffffafc74bd0\nR13: ffffffffaf60a220 R14: 0000000000000247 R15: 0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f2fe6ad91f0 CR3: 00000004b2076003 CR4: 0000000000360ee0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n vprintk_emit+0x193/0x280\n printk+0x52/0x6e\n dump_task+0x114/0x130\n mem_cgroup_scan_tasks+0x76/0x100\n dump_header+0x1fe/0x210\n oom_kill_process+0xd1/0x100\n out_of_memory+0x125/0x570\n mem_cgroup_out_of_memory+0xb5/0xd0\n try_charge+0x720/0x770\n mem_cgroup_try_charge+0x86/0x180\n mem_cgroup_try_charge_delay+0x1c/0x40\n do_anonymous_page+0xb5/0x390\n handle_mm_fault+0xc4/0x1f0\n\nThis is because thousands of processes are in the OOM cgroup, it takes a\nlong time to traverse all of them. As a result, this lead to soft lockup\nin the OOM process.\n\nTo fix this issue, call \u0027cond_resched\u0027 in the \u0027mem_cgroup_scan_tasks\u0027\nfunction per 1000 iterations. For global OOM, call\n\u0027touch_softlockup_watchdog\u0027 per 1000 iterations to avoid this issue."
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CVE-2026-31485 (GCVE-0-2026-31485)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: spi-fsl-lpspi: fix teardown order issue (UAF)
There is a teardown order issue in the driver. The SPI controller is
registered using devm_spi_register_controller(), which delays
unregistration of the SPI controller until after the fsl_lpspi_remove()
function returns.
As the fsl_lpspi_remove() function synchronously tears down the DMA
channels, a running SPI transfer triggers the following NULL pointer
dereference due to use after free:
| fsl_lpspi 42550000.spi: I/O Error in DMA RX
| Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[...]
| Call trace:
| fsl_lpspi_dma_transfer+0x260/0x340 [spi_fsl_lpspi]
| fsl_lpspi_transfer_one+0x198/0x448 [spi_fsl_lpspi]
| spi_transfer_one_message+0x49c/0x7c8
| __spi_pump_transfer_message+0x120/0x420
| __spi_sync+0x2c4/0x520
| spi_sync+0x34/0x60
| spidev_message+0x20c/0x378 [spidev]
| spidev_ioctl+0x398/0x750 [spidev]
[...]
Switch from devm_spi_register_controller() to spi_register_controller() in
fsl_lpspi_probe() and add the corresponding spi_unregister_controller() in
fsl_lpspi_remove().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e Version: 5314987de5e5f5e38436ef4a69328bc472bbd63e |
||
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CVE-2026-23422 (GCVE-0-2026-23422)
Vulnerability from cvelistv5
Published
2026-04-03 13:24
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler
Commit 31a7a0bbeb00 ("dpaa2-switch: add bounds check for if_id in IRQ
handler") introduces a range check for if_id to avoid an out-of-bounds
access. If an out-of-bounds if_id is detected, the interrupt status is
not cleared. This may result in an interrupt storm.
Clear the interrupt status after detecting an out-of-bounds if_id to avoid
the problem.
Found by an experimental AI code review agent at Google.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 77611cab5bdfff7a070ae574bbfba20a1de99d1b Version: 34b56c16efd61325d80bf1d780d0e176be662f59 Version: f89e33c9c37f0001b730e23b3b05ab7b1ecface2 Version: 2447edc367800ba914acf7ddd5d250416b45fb31 Version: 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9 Version: 31a7a0bbeb006bac2d9c81a2874825025214b6d8 Version: 31a7a0bbeb006bac2d9c81a2874825025214b6d8 Version: 5.15.200 ≤ Version: 6.1.163 ≤ Version: 6.6.124 ≤ Version: 6.12.70 ≤ Version: 6.18.10 ≤ |
||
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CVE-2026-23287 (GCVE-0-2026-23287)
Vulnerability from cvelistv5
Published
2026-03-25 10:26
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
irqchip/sifive-plic: Fix frozen interrupt due to affinity setting
PLIC ignores interrupt completion message for disabled interrupt, explained
by the specification:
The PLIC signals it has completed executing an interrupt handler by
writing the interrupt ID it received from the claim to the
claim/complete register. The PLIC does not check whether the completion
ID is the same as the last claim ID for that target. If the completion
ID does not match an interrupt source that is currently enabled for
the target, the completion is silently ignored.
This caused problems in the past, because an interrupt can be disabled
while still being handled and plic_irq_eoi() had no effect. That was fixed
by checking if the interrupt is disabled, and if so enable it, before
sending the completion message. That check is done with irqd_irq_disabled().
However, that is not sufficient because the enable bit for the handling
hart can be zero despite irqd_irq_disabled(d) being false. This can happen
when affinity setting is changed while a hart is still handling the
interrupt.
This problem is easily reproducible by dumping a large file to uart (which
generates lots of interrupts) and at the same time keep changing the uart
interrupt's affinity setting. The uart port becomes frozen almost
instantaneously.
Fix this by checking PLIC's enable bit instead of irqd_irq_disabled().
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
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||
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CVE-2026-43057 (GCVE-0-2026-43057)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-08-05 12:25
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: correctly handle tunneled traffic on IPV6_CSUM GSO fallback
NETIF_F_IPV6_CSUM only advertises support for checksum offload of
packets without IPv6 extension headers. Packets with extension
headers must fall back onto software checksumming. Since TSO
depends on checksum offload, those must revert to GSO.
The below commit introduces that fallback. It always checks
network header length. For tunneled packets, the inner header length
must be checked instead. Extend the check accordingly.
A special case is tunneled packets without inner IP protocol. Such as
RFC 6951 SCTP in UDP. Those are not standard IPv6 followed by
transport header either, so also must revert to the software GSO path.
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| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
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| Linux | Linux |
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CVE-2026-31634 (GCVE-0-2026-31634)
Vulnerability from cvelistv5
Published
2026-04-24 14:44
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: fix reference count leak in rxrpc_server_keyring()
This patch fixes a reference count leak in rxrpc_server_keyring()
by checking if rx->securities is already set.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 17926a79320afa9b95df6b977b40cca6d8713cea Version: 17926a79320afa9b95df6b977b40cca6d8713cea Version: 17926a79320afa9b95df6b977b40cca6d8713cea Version: 17926a79320afa9b95df6b977b40cca6d8713cea Version: 17926a79320afa9b95df6b977b40cca6d8713cea Version: 17926a79320afa9b95df6b977b40cca6d8713cea Version: 17926a79320afa9b95df6b977b40cca6d8713cea Version: 17926a79320afa9b95df6b977b40cca6d8713cea |
||
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CVE-2026-23005 (GCVE-0-2026-23005)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/fpu: Clear XSTATE_BV[i] in guest XSAVE state whenever XFD[i]=1
When loading guest XSAVE state via KVM_SET_XSAVE, and when updating XFD in
response to a guest WRMSR, clear XFD-disabled features in the saved (or to
be restored) XSTATE_BV to ensure KVM doesn't attempt to load state for
features that are disabled via the guest's XFD. Because the kernel
executes XRSTOR with the guest's XFD, saving XSTATE_BV[i]=1 with XFD[i]=1
will cause XRSTOR to #NM and panic the kernel.
E.g. if fpu_update_guest_xfd() sets XFD without clearing XSTATE_BV:
------------[ cut here ]------------
WARNING: arch/x86/kernel/traps.c:1524 at exc_device_not_available+0x101/0x110, CPU#29: amx_test/848
Modules linked in: kvm_intel kvm irqbypass
CPU: 29 UID: 1000 PID: 848 Comm: amx_test Not tainted 6.19.0-rc2-ffa07f7fd437-x86_amx_nm_xfd_non_init-vm #171 NONE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
RIP: 0010:exc_device_not_available+0x101/0x110
Call Trace:
<TASK>
asm_exc_device_not_available+0x1a/0x20
RIP: 0010:restore_fpregs_from_fpstate+0x36/0x90
switch_fpu_return+0x4a/0xb0
kvm_arch_vcpu_ioctl_run+0x1245/0x1e40 [kvm]
kvm_vcpu_ioctl+0x2c3/0x8f0 [kvm]
__x64_sys_ioctl+0x8f/0xd0
do_syscall_64+0x62/0x940
entry_SYSCALL_64_after_hwframe+0x4b/0x53
</TASK>
---[ end trace 0000000000000000 ]---
This can happen if the guest executes WRMSR(MSR_IA32_XFD) to set XFD[18] = 1,
and a host IRQ triggers kernel_fpu_begin() prior to the vmexit handler's
call to fpu_update_guest_xfd().
and if userspace stuffs XSTATE_BV[i]=1 via KVM_SET_XSAVE:
------------[ cut here ]------------
WARNING: arch/x86/kernel/traps.c:1524 at exc_device_not_available+0x101/0x110, CPU#14: amx_test/867
Modules linked in: kvm_intel kvm irqbypass
CPU: 14 UID: 1000 PID: 867 Comm: amx_test Not tainted 6.19.0-rc2-2dace9faccd6-x86_amx_nm_xfd_non_init-vm #168 NONE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
RIP: 0010:exc_device_not_available+0x101/0x110
Call Trace:
<TASK>
asm_exc_device_not_available+0x1a/0x20
RIP: 0010:restore_fpregs_from_fpstate+0x36/0x90
fpu_swap_kvm_fpstate+0x6b/0x120
kvm_load_guest_fpu+0x30/0x80 [kvm]
kvm_arch_vcpu_ioctl_run+0x85/0x1e40 [kvm]
kvm_vcpu_ioctl+0x2c3/0x8f0 [kvm]
__x64_sys_ioctl+0x8f/0xd0
do_syscall_64+0x62/0x940
entry_SYSCALL_64_after_hwframe+0x4b/0x53
</TASK>
---[ end trace 0000000000000000 ]---
The new behavior is consistent with the AMX architecture. Per Intel's SDM,
XSAVE saves XSTATE_BV as '0' for components that are disabled via XFD
(and non-compacted XSAVE saves the initial configuration of the state
component):
If XSAVE, XSAVEC, XSAVEOPT, or XSAVES is saving the state component i,
the instruction does not generate #NM when XCR0[i] = IA32_XFD[i] = 1;
instead, it operates as if XINUSE[i] = 0 (and the state component was
in its initial state): it saves bit i of XSTATE_BV field of the XSAVE
header as 0; in addition, XSAVE saves the initial configuration of the
state component (the other instructions do not save state component i).
Alternatively, KVM could always do XRSTOR with XFD=0, e.g. by using
a constant XFD based on the set of enabled features when XSAVEing for
a struct fpu_guest. However, having XSTATE_BV[i]=1 for XFD-disabled
features can only happen in the above interrupt case, or in similar
scenarios involving preemption on preemptible kernels, because
fpu_swap_kvm_fpstate()'s call to save_fpregs_to_fpstate() saves the
outgoing FPU state with the current XFD; and that is (on all but the
first WRMSR to XFD) the guest XFD.
Therefore, XFD can only go out of sync with XSTATE_BV in the above
interrupt case, or in similar scenarios involving preemption on
preemptible kernels, and it we can consider it (de facto) part of KVM
ABI that KVM_GET_XSAVE returns XSTATE_BV[i]=0 for XFD-disabled features.
[Move clea
---truncated---
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-71190 (GCVE-0-2025-71190)
Vulnerability from cvelistv5
Published
2026-01-31 11:42
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: bcm-sba-raid: fix device leak on probe
Make sure to drop the reference taken when looking up the mailbox device
during probe on probe failures and on driver unbind.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b Version: 743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b Version: 743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b Version: 743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b Version: 743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b Version: 743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b Version: 743e1c8ffe4ee5dd7596556dcc3f022ccde13d7b |
||
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CVE-2025-71221 (GCVE-0-2025-71221)
Vulnerability from cvelistv5
Published
2026-02-14 16:27
Modified
2026-08-05 12:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue()
Add proper locking in mmp_pdma_residue() to prevent use-after-free when
accessing descriptor list and descriptor contents.
The race occurs when multiple threads call tx_status() while the tasklet
on another CPU is freeing completed descriptors:
CPU 0 CPU 1
----- -----
mmp_pdma_tx_status()
mmp_pdma_residue()
-> NO LOCK held
list_for_each_entry(sw, ..)
DMA interrupt
dma_do_tasklet()
-> spin_lock(&desc_lock)
list_move(sw->node, ...)
spin_unlock(&desc_lock)
| dma_pool_free(sw) <- FREED!
-> access sw->desc <- UAF!
This issue can be reproduced when running dmatest on the same channel with
multiple threads (threads_per_chan > 1).
Fix by protecting the chain_running list iteration and descriptor access
with the chan->desc_lock spinlock.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1b38da264674d6a0fe26a63996b8f88b88c3da48 Version: 1b38da264674d6a0fe26a63996b8f88b88c3da48 Version: 1b38da264674d6a0fe26a63996b8f88b88c3da48 Version: 1b38da264674d6a0fe26a63996b8f88b88c3da48 Version: 1b38da264674d6a0fe26a63996b8f88b88c3da48 Version: 1b38da264674d6a0fe26a63996b8f88b88c3da48 |
||
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CVE-2026-43027 (GCVE-0-2026-43027)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-07-14 12:49
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_helper: pass helper to expect cleanup
nf_conntrack_helper_unregister() calls nf_ct_expect_iterate_destroy()
to remove expectations belonging to the helper being unregistered.
However, it passes NULL instead of the helper pointer as the data
argument, so expect_iter_me() never matches any expectation and all
of them survive the cleanup.
After unregister returns, nfnl_cthelper_del() frees the helper
object immediately. Subsequent expectation dumps or packet-driven
init_conntrack() calls then dereference the freed exp->helper,
causing a use-after-free.
Pass the actual helper pointer so expectations referencing it are
properly destroyed before the helper object is freed.
BUG: KASAN: slab-use-after-free in string+0x38f/0x430
Read of size 1 at addr ffff888003b14d20 by task poc/103
Call Trace:
string+0x38f/0x430
vsnprintf+0x3cc/0x1170
seq_printf+0x17a/0x240
exp_seq_show+0x2e5/0x560
seq_read_iter+0x419/0x1280
proc_reg_read+0x1ac/0x270
vfs_read+0x179/0x930
ksys_read+0xef/0x1c0
Freed by task 103:
The buggy address is located 32 bytes inside of
freed 192-byte region [ffff888003b14d00, ffff888003b14dc0)
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ac7b848390036dadd4351899d2a23748075916bd Version: ac7b848390036dadd4351899d2a23748075916bd Version: ac7b848390036dadd4351899d2a23748075916bd Version: ac7b848390036dadd4351899d2a23748075916bd Version: ac7b848390036dadd4351899d2a23748075916bd Version: ac7b848390036dadd4351899d2a23748075916bd Version: ac7b848390036dadd4351899d2a23748075916bd Version: ac7b848390036dadd4351899d2a23748075916bd |
||
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CVE-2026-31422 (GCVE-0-2026-31422)
Vulnerability from cvelistv5
Published
2026-04-13 13:40
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: cls_flow: fix NULL pointer dereference on shared blocks
flow_change() calls tcf_block_q() and dereferences q->handle to derive
a default baseclass. Shared blocks leave block->q NULL, causing a NULL
deref when a flow filter without a fully qualified baseclass is created
on a shared block.
Check tcf_block_shared() before accessing block->q and return -EINVAL
for shared blocks. This avoids the null-deref shown below:
=======================================================================
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
RIP: 0010:flow_change (net/sched/cls_flow.c:508)
Call Trace:
tc_new_tfilter (net/sched/cls_api.c:2432)
rtnetlink_rcv_msg (net/core/rtnetlink.c:6980)
[...]
=======================================================================
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db |
||
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CVE-2025-21846 (GCVE-0-2025-21846)
Vulnerability from cvelistv5
Published
2025-03-12 09:42
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
acct: perform last write from workqueue
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Reorganize the code so that the the final write happens from the
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(strange) permission model and has almost no regression risk.
This api should stop to exist though.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
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CVE-2025-71113 (GCVE-0-2025-71113)
Vulnerability from cvelistv5
Published
2026-01-14 15:05
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: af_alg - zero initialize memory allocated via sock_kmalloc
Several crypto user API contexts and requests allocated with
sock_kmalloc() were left uninitialized, relying on callers to
set fields explicitly. This resulted in the use of uninitialized
data in certain error paths or when new fields are added in the
future.
The ACVP patches also contain two user-space interface files:
algif_kpp.c and algif_akcipher.c. These too rely on proper
initialization of their context structures.
A particular issue has been observed with the newly added
'inflight' variable introduced in af_alg_ctx by commit:
67b164a871af ("crypto: af_alg - Disallow multiple in-flight AIO requests")
Because the context is not memset to zero after allocation,
the inflight variable has contained garbage values. As a result,
af_alg_alloc_areq() has incorrectly returned -EBUSY randomly when
the garbage value was interpreted as true:
https://github.com/gregkh/linux/blame/master/crypto/af_alg.c#L1209
The check directly tests ctx->inflight without explicitly
comparing against true/false. Since inflight is only ever set to
true or false later, an uninitialized value has triggered
-EBUSY failures. Zero-initializing memory allocated with
sock_kmalloc() ensures inflight and other fields start in a known
state, removing random issues caused by uninitialized data.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fe869cdb89c95d060c77eea20204d6c91f233b53 Version: fe869cdb89c95d060c77eea20204d6c91f233b53 Version: fe869cdb89c95d060c77eea20204d6c91f233b53 Version: fe869cdb89c95d060c77eea20204d6c91f233b53 Version: fe869cdb89c95d060c77eea20204d6c91f233b53 Version: fe869cdb89c95d060c77eea20204d6c91f233b53 Version: fe869cdb89c95d060c77eea20204d6c91f233b53 |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: af_alg - zero initialize memory allocated via sock_kmalloc\n\nSeveral crypto user API contexts and requests allocated with\nsock_kmalloc() were left uninitialized, relying on callers to\nset fields explicitly. This resulted in the use of uninitialized\ndata in certain error paths or when new fields are added in the\nfuture.\n\nThe ACVP patches also contain two user-space interface files:\nalgif_kpp.c and algif_akcipher.c. These too rely on proper\ninitialization of their context structures.\n\nA particular issue has been observed with the newly added\n\u0027inflight\u0027 variable introduced in af_alg_ctx by commit:\n\n 67b164a871af (\"crypto: af_alg - Disallow multiple in-flight AIO requests\")\n\nBecause the context is not memset to zero after allocation,\nthe inflight variable has contained garbage values. As a result,\naf_alg_alloc_areq() has incorrectly returned -EBUSY randomly when\nthe garbage value was interpreted as true:\n\n https://github.com/gregkh/linux/blame/master/crypto/af_alg.c#L1209\n\nThe check directly tests ctx-\u003einflight without explicitly\ncomparing against true/false. Since inflight is only ever set to\ntrue or false later, an uninitialized value has triggered\n-EBUSY failures. Zero-initializing memory allocated with\nsock_kmalloc() ensures inflight and other fields start in a known\nstate, removing random issues caused by uninitialized data."
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CVE-2024-58056 (GCVE-0-2024-58056)
Vulnerability from cvelistv5
Published
2025-03-06 15:53
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
remoteproc: core: Fix ida_free call while not allocated
In the rproc_alloc() function, on error, put_device(&rproc->dev) is
called, leading to the call of the rproc_type_release() function.
An error can occurs before ida_alloc is called.
In such case in rproc_type_release(), the condition (rproc->index >= 0) is
true as rproc->index has been initialized to 0.
ida_free() is called reporting a warning:
[ 4.181906] WARNING: CPU: 1 PID: 24 at lib/idr.c:525 ida_free+0x100/0x164
[ 4.186378] stm32-display-dsi 5a000000.dsi: Fixed dependency cycle(s) with /soc/dsi@5a000000/panel@0
[ 4.188854] ida_free called for id=0 which is not allocated.
[ 4.198256] mipi-dsi 5a000000.dsi.0: Fixed dependency cycle(s) with /soc/dsi@5a000000
[ 4.203556] Modules linked in: panel_orisetech_otm8009a dw_mipi_dsi_stm(+) gpu_sched dw_mipi_dsi stm32_rproc stm32_crc32 stm32_ipcc(+) optee(+)
[ 4.224307] CPU: 1 UID: 0 PID: 24 Comm: kworker/u10:0 Not tainted 6.12.0 #442
[ 4.231481] Hardware name: STM32 (Device Tree Support)
[ 4.236627] Workqueue: events_unbound deferred_probe_work_func
[ 4.242504] Call trace:
[ 4.242522] unwind_backtrace from show_stack+0x10/0x14
[ 4.250218] show_stack from dump_stack_lvl+0x50/0x64
[ 4.255274] dump_stack_lvl from __warn+0x80/0x12c
[ 4.260134] __warn from warn_slowpath_fmt+0x114/0x188
[ 4.265199] warn_slowpath_fmt from ida_free+0x100/0x164
[ 4.270565] ida_free from rproc_type_release+0x38/0x60
[ 4.275832] rproc_type_release from device_release+0x30/0xa0
[ 4.281601] device_release from kobject_put+0xc4/0x294
[ 4.286762] kobject_put from rproc_alloc.part.0+0x208/0x28c
[ 4.292430] rproc_alloc.part.0 from devm_rproc_alloc+0x80/0xc4
[ 4.298393] devm_rproc_alloc from stm32_rproc_probe+0xd0/0x844 [stm32_rproc]
[ 4.305575] stm32_rproc_probe [stm32_rproc] from platform_probe+0x5c/0xbc
Calling ida_alloc earlier in rproc_alloc ensures that the rproc->index is
properly set.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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"datePublished": "2025-03-06T15:53:59.641Z",
"dateReserved": "2025-03-06T15:52:09.179Z",
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CVE-2025-22121 (GCVE-0-2025-22121)
Vulnerability from cvelistv5
Published
2025-04-16 14:13
Modified
2026-08-05 11:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()
There's issue as follows:
BUG: KASAN: use-after-free in ext4_xattr_inode_dec_ref_all+0x6ff/0x790
Read of size 4 at addr ffff88807b003000 by task syz-executor.0/15172
CPU: 3 PID: 15172 Comm: syz-executor.0
Call Trace:
__dump_stack lib/dump_stack.c:82 [inline]
dump_stack+0xbe/0xfd lib/dump_stack.c:123
print_address_description.constprop.0+0x1e/0x280 mm/kasan/report.c:400
__kasan_report.cold+0x6c/0x84 mm/kasan/report.c:560
kasan_report+0x3a/0x50 mm/kasan/report.c:585
ext4_xattr_inode_dec_ref_all+0x6ff/0x790 fs/ext4/xattr.c:1137
ext4_xattr_delete_inode+0x4c7/0xda0 fs/ext4/xattr.c:2896
ext4_evict_inode+0xb3b/0x1670 fs/ext4/inode.c:323
evict+0x39f/0x880 fs/inode.c:622
iput_final fs/inode.c:1746 [inline]
iput fs/inode.c:1772 [inline]
iput+0x525/0x6c0 fs/inode.c:1758
ext4_orphan_cleanup fs/ext4/super.c:3298 [inline]
ext4_fill_super+0x8c57/0xba40 fs/ext4/super.c:5300
mount_bdev+0x355/0x410 fs/super.c:1446
legacy_get_tree+0xfe/0x220 fs/fs_context.c:611
vfs_get_tree+0x8d/0x2f0 fs/super.c:1576
do_new_mount fs/namespace.c:2983 [inline]
path_mount+0x119a/0x1ad0 fs/namespace.c:3316
do_mount+0xfc/0x110 fs/namespace.c:3329
__do_sys_mount fs/namespace.c:3540 [inline]
__se_sys_mount+0x219/0x2e0 fs/namespace.c:3514
do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x67/0xd1
Memory state around the buggy address:
ffff88807b002f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88807b002f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88807b003000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff88807b003080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88807b003100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Above issue happens as ext4_xattr_delete_inode() isn't check xattr
is valid if xattr is in inode.
To solve above issue call xattr_check_inode() check if xattr if valid
in inode. In fact, we can directly verify in ext4_iget_extra_inode(),
so that there is no divergent verification.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e50e5129f384ae282adebfb561189cdb19b81cee Version: e50e5129f384ae282adebfb561189cdb19b81cee Version: e50e5129f384ae282adebfb561189cdb19b81cee Version: e50e5129f384ae282adebfb561189cdb19b81cee Version: e50e5129f384ae282adebfb561189cdb19b81cee Version: e50e5129f384ae282adebfb561189cdb19b81cee Version: e50e5129f384ae282adebfb561189cdb19b81cee |
||
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()\n\nThere\u0027s issue as follows:\nBUG: KASAN: use-after-free in ext4_xattr_inode_dec_ref_all+0x6ff/0x790\nRead of size 4 at addr ffff88807b003000 by task syz-executor.0/15172\n\nCPU: 3 PID: 15172 Comm: syz-executor.0\nCall Trace:\n __dump_stack lib/dump_stack.c:82 [inline]\n dump_stack+0xbe/0xfd lib/dump_stack.c:123\n print_address_description.constprop.0+0x1e/0x280 mm/kasan/report.c:400\n __kasan_report.cold+0x6c/0x84 mm/kasan/report.c:560\n kasan_report+0x3a/0x50 mm/kasan/report.c:585\n ext4_xattr_inode_dec_ref_all+0x6ff/0x790 fs/ext4/xattr.c:1137\n ext4_xattr_delete_inode+0x4c7/0xda0 fs/ext4/xattr.c:2896\n ext4_evict_inode+0xb3b/0x1670 fs/ext4/inode.c:323\n evict+0x39f/0x880 fs/inode.c:622\n iput_final fs/inode.c:1746 [inline]\n iput fs/inode.c:1772 [inline]\n iput+0x525/0x6c0 fs/inode.c:1758\n ext4_orphan_cleanup fs/ext4/super.c:3298 [inline]\n ext4_fill_super+0x8c57/0xba40 fs/ext4/super.c:5300\n mount_bdev+0x355/0x410 fs/super.c:1446\n legacy_get_tree+0xfe/0x220 fs/fs_context.c:611\n vfs_get_tree+0x8d/0x2f0 fs/super.c:1576\n do_new_mount fs/namespace.c:2983 [inline]\n path_mount+0x119a/0x1ad0 fs/namespace.c:3316\n do_mount+0xfc/0x110 fs/namespace.c:3329\n __do_sys_mount fs/namespace.c:3540 [inline]\n __se_sys_mount+0x219/0x2e0 fs/namespace.c:3514\n do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46\n entry_SYSCALL_64_after_hwframe+0x67/0xd1\n\nMemory state around the buggy address:\n ffff88807b002f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff88807b002f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effff88807b003000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff\n ^\n ffff88807b003080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff\n ffff88807b003100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff\n\nAbove issue happens as ext4_xattr_delete_inode() isn\u0027t check xattr\nis valid if xattr is in inode.\nTo solve above issue call xattr_check_inode() check if xattr if valid\nin inode. In fact, we can directly verify in ext4_iget_extra_inode(),\nso that there is no divergent verification."
}
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},
"scenarios": [
{
"lang": "en",
"value": "AV:L - Exploitation requires the attacker-crafted ext4 image to be presented to the local kernel as a block device \u2014 a USB stick on an automounting desktop/kiosk, a loop/NBD/iSCSI-backed device, or a container/VM disk image \u2014 reaching the bug through the mount(2) syscall path. No network protocol handler is involved, and physical access is not strictly required since loop and network-block-backed images work equally well.\nAC:L - The attacker fully controls every byte of the on-disk image, including the ea_inode feature bit, the inode\u0027s i_extra_isize, the xattr magic, the entry array, and which inode sits last in its inode-table block so the walk runs off the end of the buffer_head page allocation. The corruption is deterministic at mount during orphan cleanup with no race to win and no dependency on kernel memory layout the attacker cannot influence.\nPR:N - The attacker needs no account or privilege on the target system \u2014 they only supply the malicious filesystem image, which is then mounted by root, by an automount daemon such as udisks2, or by a container/VM image-handling service acting on the attacker\u0027s data. All privileged operations along the path are performed by the victim system on the attacker\u0027s behalf.\nUI:N - On the common desktop, kiosk, and appliance configurations where udisks2/systemd automounts removable media, plugging in the device triggers the mount with no human participation, and the bug fires immediately during ext4_orphan_cleanup() inside ext4_fill_super() rather than requiring any subsequent file access. Container and VM image-mount services likewise mount attacker-supplied images unattended.\nS:U - The out-of-bounds read and write occur in kernel heap memory within the same kernel security authority that hosts the vulnerable ext4 code. There is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The loop performs an unbounded (pre-mitigation) or several-byte-past-the-allocation (post-mitigation) out-of-bounds read of adjacent kernel heap memory past the inode-table buffer_head, and those leaked bytes are consumed as e_value_inum/e_hash/e_value_size values that steer subsequent inode lookups and quota accounting, making adjacent kernel memory contents observable through filesystem state and error output.\nI:H - `entry-\u003ee_value_inum = 0; entry-\u003ee_value_size = 0;` writes 8 zero bytes through an out-of-bounds entry pointer into adjacent kernel heap memory, and the OOB-derived inode numbers drive ext4_xattr_inode_dec_ref()/ext4_orphan_add() to decrement refcounts and orphan arbitrary inodes. This combination of controlled kernel heap zeroing plus arbitrary on-disk metadata corruption is a usable memory-corruption primitive, not a bounded misread.\nA:H - KASAN reproduces the issue as a use-after-free/out-of-bounds access past a page-sized buffer_head allocation during mount; on a production kernel the same access corrupts adjacent slab memory and the bogus inode ref-count decrements trigger EXT4-fs errors and oops/panic. The crash occurs during ext4_fill_super() and can be repeated on every mount attempt."
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CVE-2025-39782 (GCVE-0-2025-39782)
Vulnerability from cvelistv5
Published
2025-09-11 16:56
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
jbd2: prevent softlockup in jbd2_log_do_checkpoint()
Both jbd2_log_do_checkpoint() and jbd2_journal_shrink_checkpoint_list()
periodically release j_list_lock after processing a batch of buffers to
avoid long hold times on the j_list_lock. However, since both functions
contend for j_list_lock, the combined time spent waiting and processing
can be significant.
jbd2_journal_shrink_checkpoint_list() explicitly calls cond_resched() when
need_resched() is true to avoid softlockups during prolonged operations.
But jbd2_log_do_checkpoint() only exits its loop when need_resched() is
true, relying on potentially sleeping functions like __flush_batch() or
wait_on_buffer() to trigger rescheduling. If those functions do not sleep,
the kernel may hit a softlockup.
watchdog: BUG: soft lockup - CPU#3 stuck for 156s! [kworker/u129:2:373]
CPU: 3 PID: 373 Comm: kworker/u129:2 Kdump: loaded Not tainted 6.6.0+ #10
Hardware name: Huawei TaiShan 2280 /BC11SPCD, BIOS 1.27 06/13/2017
Workqueue: writeback wb_workfn (flush-7:2)
pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : native_queued_spin_lock_slowpath+0x358/0x418
lr : jbd2_log_do_checkpoint+0x31c/0x438 [jbd2]
Call trace:
native_queued_spin_lock_slowpath+0x358/0x418
jbd2_log_do_checkpoint+0x31c/0x438 [jbd2]
__jbd2_log_wait_for_space+0xfc/0x2f8 [jbd2]
add_transaction_credits+0x3bc/0x418 [jbd2]
start_this_handle+0xf8/0x560 [jbd2]
jbd2__journal_start+0x118/0x228 [jbd2]
__ext4_journal_start_sb+0x110/0x188 [ext4]
ext4_do_writepages+0x3dc/0x740 [ext4]
ext4_writepages+0xa4/0x190 [ext4]
do_writepages+0x94/0x228
__writeback_single_inode+0x48/0x318
writeback_sb_inodes+0x204/0x590
__writeback_inodes_wb+0x54/0xf8
wb_writeback+0x2cc/0x3d8
wb_do_writeback+0x2e0/0x2f8
wb_workfn+0x80/0x2a8
process_one_work+0x178/0x3e8
worker_thread+0x234/0x3b8
kthread+0xf0/0x108
ret_from_fork+0x10/0x20
So explicitly call cond_resched() in jbd2_log_do_checkpoint() to avoid
softlockup.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f93ea411b73594f7d144855fd34278bcf34a9afc Version: f93ea411b73594f7d144855fd34278bcf34a9afc Version: f93ea411b73594f7d144855fd34278bcf34a9afc Version: f93ea411b73594f7d144855fd34278bcf34a9afc Version: f93ea411b73594f7d144855fd34278bcf34a9afc Version: f93ea411b73594f7d144855fd34278bcf34a9afc Version: f93ea411b73594f7d144855fd34278bcf34a9afc Version: f93ea411b73594f7d144855fd34278bcf34a9afc |
||
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CVE-2026-54429 (GCVE-0-2026-54429)
Vulnerability from cvelistv5
Published
2026-07-14 09:19
Modified
2026-07-14 12:15
Severity ?
7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
6.0 (Medium) - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
6.0 (Medium) - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
A vulnerability has been identified in SIMATIC S7-PLCSIM Advanced (All versions). Affected devices do not properly handle high-volume multicast network traffic, which can exhaust available memory resources in the affected application. This could allow an unauthenticated attacker on the local network segment to cause a denial-of-service condition of the affected application. The affected application becomes inaccessible and requires a manual restart; no project data is lost. Successful exploitation requires a specific project configuration to be already active on the targeted instance.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Siemens | SIMATIC S7-PLCSIM Advanced |
Version: 0 < * |
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CVE-2026-31533 (GCVE-0-2026-31533)
Vulnerability from cvelistv5
Published
2026-04-23 15:11
Modified
2026-08-05 12:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption
The -EBUSY handling in tls_do_encryption(), introduced by commit
859054147318 ("net: tls: handle backlogging of crypto requests"), has
a use-after-free due to double cleanup of encrypt_pending and the
scatterlist entry.
When crypto_aead_encrypt() returns -EBUSY, the request is enqueued to
the cryptd backlog and the async callback tls_encrypt_done() will be
invoked upon completion. That callback unconditionally restores the
scatterlist entry (sge->offset, sge->length) and decrements
ctx->encrypt_pending. However, if tls_encrypt_async_wait() returns an
error, the synchronous error path in tls_do_encryption() performs the
same cleanup again, double-decrementing encrypt_pending and
double-restoring the scatterlist.
The double-decrement corrupts the encrypt_pending sentinel (initialized
to 1), making tls_encrypt_async_wait() permanently skip the wait for
pending async callbacks. A subsequent sendmsg can then free the
tls_rec via bpf_exec_tx_verdict() while a cryptd callback is still
pending, resulting in a use-after-free when the callback fires on the
freed record.
Fix this by skipping the synchronous cleanup when the -EBUSY async
wait returns an error, since the callback has already handled
encrypt_pending and sge restoration.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2026-31628 (GCVE-0-2026-31628)
Vulnerability from cvelistv5
Published
2026-04-24 14:42
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/CPU: Fix FPDSS on Zen1
Zen1's hardware divider can leave, under certain circumstances, partial
results from previous operations. Those results can be leaked by
another, attacker thread.
Fix that with a chicken bit.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: 5abd1583e06b3963e5c9d915760367de86808b78 Version: 4ba461d426490b6ed7e8298c4d3b7a13aa5d2686 Version: 5a63725cd18fcee2af6ec46ccb856b64ad3077b4 Version: 3.16.58 ≤ Version: 4.4.144 ≤ Version: 4.9.102 ≤ |
||
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CVE-2025-39866 (GCVE-0-2025-39866)
Vulnerability from cvelistv5
Published
2025-09-19 15:26
Modified
2026-08-05 12:05
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: writeback: fix use-after-free in __mark_inode_dirty()
An use-after-free issue occurred when __mark_inode_dirty() get the
bdi_writeback that was in the progress of switching.
CPU: 1 PID: 562 Comm: systemd-random- Not tainted 6.6.56-gb4403bd46a8e #1
......
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __mark_inode_dirty+0x124/0x418
lr : __mark_inode_dirty+0x118/0x418
sp : ffffffc08c9dbbc0
........
Call trace:
__mark_inode_dirty+0x124/0x418
generic_update_time+0x4c/0x60
file_modified+0xcc/0xd0
ext4_buffered_write_iter+0x58/0x124
ext4_file_write_iter+0x54/0x704
vfs_write+0x1c0/0x308
ksys_write+0x74/0x10c
__arm64_sys_write+0x1c/0x28
invoke_syscall+0x48/0x114
el0_svc_common.constprop.0+0xc0/0xe0
do_el0_svc+0x1c/0x28
el0_svc+0x40/0xe4
el0t_64_sync_handler+0x120/0x12c
el0t_64_sync+0x194/0x198
Root cause is:
systemd-random-seed kworker
----------------------------------------------------------------------
___mark_inode_dirty inode_switch_wbs_work_fn
spin_lock(&inode->i_lock);
inode_attach_wb
locked_inode_to_wb_and_lock_list
get inode->i_wb
spin_unlock(&inode->i_lock);
spin_lock(&wb->list_lock)
spin_lock(&inode->i_lock)
inode_io_list_move_locked
spin_unlock(&wb->list_lock)
spin_unlock(&inode->i_lock)
spin_lock(&old_wb->list_lock)
inode_do_switch_wbs
spin_lock(&inode->i_lock)
inode->i_wb = new_wb
spin_unlock(&inode->i_lock)
spin_unlock(&old_wb->list_lock)
wb_put_many(old_wb, nr_switched)
cgwb_release
old wb released
wb_wakeup_delayed() accesses wb,
then trigger the use-after-free
issue
Fix this race condition by holding inode spinlock until
wb_wakeup_delayed() finished.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0747259d13febfcc838980a63c414c9b920cea6f Version: 0747259d13febfcc838980a63c414c9b920cea6f Version: 0747259d13febfcc838980a63c414c9b920cea6f Version: 0747259d13febfcc838980a63c414c9b920cea6f Version: 0747259d13febfcc838980a63c414c9b920cea6f Version: 0747259d13febfcc838980a63c414c9b920cea6f Version: 0747259d13febfcc838980a63c414c9b920cea6f |
||
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CVE-2025-37972 (GCVE-0-2025-37972)
Vulnerability from cvelistv5
Published
2025-05-20 16:47
Modified
2026-07-14 12:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Input: mtk-pmic-keys - fix possible null pointer dereference
In mtk_pmic_keys_probe, the regs parameter is only set if the button is
parsed in the device tree. However, on hardware where the button is left
floating, that node will most likely be removed not to enable that
input. In that case the code will try to dereference a null pointer.
Let's use the regs struct instead as it is defined for all supported
platforms. Note that it is ok setting the key reg even if that latter is
disabled as the interrupt won't be enabled anyway.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-31421 (GCVE-0-2026-31421)
Vulnerability from cvelistv5
Published
2026-04-13 13:40
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: cls_fw: fix NULL pointer dereference on shared blocks
The old-method path in fw_classify() calls tcf_block_q() and
dereferences q->handle. Shared blocks leave block->q NULL, causing a
NULL deref when an empty cls_fw filter is attached to a shared block
and a packet with a nonzero major skb mark is classified.
Reject the configuration in fw_change() when the old method (no
TCA_OPTIONS) is used on a shared block, since fw_classify()'s
old-method path needs block->q which is NULL for shared blocks.
The fixed null-ptr-deref calling stack:
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
RIP: 0010:fw_classify (net/sched/cls_fw.c:81)
Call Trace:
tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1764 net/sched/cls_api.c:1860)
tc_run (net/core/dev.c:4401)
__dev_queue_xmit (net/core/dev.c:4535 net/core/dev.c:4790)
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db Version: 1abf272022cf1d18469405f47b4ec49c6a3125db |
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CVE-2026-23398 (GCVE-0-2026-23398)
Vulnerability from cvelistv5
Published
2026-03-26 10:22
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
icmp: fix NULL pointer dereference in icmp_tag_validation()
icmp_tag_validation() unconditionally dereferences the result of
rcu_dereference(inet_protos[proto]) without checking for NULL.
The inet_protos[] array is sparse -- only about 15 of 256 protocol
numbers have registered handlers. When ip_no_pmtu_disc is set to 3
(hardened PMTU mode) and the kernel receives an ICMP Fragmentation
Needed error with a quoted inner IP header containing an unregistered
protocol number, the NULL dereference causes a kernel panic in
softirq context.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
RIP: 0010:icmp_unreach (net/ipv4/icmp.c:1085 net/ipv4/icmp.c:1143)
Call Trace:
<IRQ>
icmp_rcv (net/ipv4/icmp.c:1527)
ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207)
ip_local_deliver_finish (net/ipv4/ip_input.c:242)
ip_local_deliver (net/ipv4/ip_input.c:262)
ip_rcv (net/ipv4/ip_input.c:573)
__netif_receive_skb_one_core (net/core/dev.c:6164)
process_backlog (net/core/dev.c:6628)
handle_softirqs (kernel/softirq.c:561)
</IRQ>
Add a NULL check before accessing icmp_strict_tag_validation. If the
protocol has no registered handler, return false since it cannot
perform strict tag validation.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2025-71267 (GCVE-0-2025-71267)
Vulnerability from cvelistv5
Published
2026-03-18 10:05
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST
We found an infinite loop bug in the ntfs3 file system that can lead to a
Denial-of-Service (DoS) condition.
A malformed NTFS image can cause an infinite loop when an ATTR_LIST attribute
indicates a zero data size while the driver allocates memory for it.
When ntfs_load_attr_list() processes a resident ATTR_LIST with data_size set
to zero, it still allocates memory because of al_aligned(0). This creates an
inconsistent state where ni->attr_list.size is zero, but ni->attr_list.le is
non-null. This causes ni_enum_attr_ex to incorrectly assume that no attribute
list exists and enumerates only the primary MFT record. When it finds
ATTR_LIST, the code reloads it and restarts the enumeration, repeating
indefinitely. The mount operation never completes, hanging the kernel thread.
This patch adds validation to ensure that data_size is non-zero before memory
allocation. When a zero-sized ATTR_LIST is detected, the function returns
-EINVAL, preventing a DoS vulnerability.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 |
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CVE-2025-38732 (GCVE-0-2025-38732)
Vulnerability from cvelistv5
Published
2025-09-05 17:20
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_reject: don't leak dst refcount for loopback packets
recent patches to add a WARN() when replacing skb dst entry found an
old bug:
WARNING: include/linux/skbuff.h:1165 skb_dst_check_unset include/linux/skbuff.h:1164 [inline]
WARNING: include/linux/skbuff.h:1165 skb_dst_set include/linux/skbuff.h:1210 [inline]
WARNING: include/linux/skbuff.h:1165 nf_reject_fill_skb_dst+0x2a4/0x330 net/ipv4/netfilter/nf_reject_ipv4.c:234
[..]
Call Trace:
nf_send_unreach+0x17b/0x6e0 net/ipv4/netfilter/nf_reject_ipv4.c:325
nft_reject_inet_eval+0x4bc/0x690 net/netfilter/nft_reject_inet.c:27
expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
..
This is because blamed commit forgot about loopback packets.
Such packets already have a dst_entry attached, even at PRE_ROUTING stage.
Instead of checking hook just check if the skb already has a route
attached to it.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2024-57973 (GCVE-0-2024-57973)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-08-05 11:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rdma/cxgb4: Prevent potential integer overflow on 32bit
The "gl->tot_len" variable is controlled by the user. It comes from
process_responses(). On 32bit systems, the "gl->tot_len + sizeof(struct
cpl_pass_accept_req) + sizeof(struct rss_header)" addition could have an
integer wrapping bug. Use size_add() to prevent this.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
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CVE-2025-22083 (GCVE-0-2025-22083)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-08-05 11:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vhost-scsi: Fix handling of multiple calls to vhost_scsi_set_endpoint
If vhost_scsi_set_endpoint is called multiple times without a
vhost_scsi_clear_endpoint between them, we can hit multiple bugs
found by Haoran Zhang:
1. Use-after-free when no tpgs are found:
This fixes a use after free that occurs when vhost_scsi_set_endpoint is
called more than once and calls after the first call do not find any
tpgs to add to the vs_tpg. When vhost_scsi_set_endpoint first finds
tpgs to add to the vs_tpg array match=true, so we will do:
vhost_vq_set_backend(vq, vs_tpg);
...
kfree(vs->vs_tpg);
vs->vs_tpg = vs_tpg;
If vhost_scsi_set_endpoint is called again and no tpgs are found
match=false so we skip the vhost_vq_set_backend call leaving the
pointer to the vs_tpg we then free via:
kfree(vs->vs_tpg);
vs->vs_tpg = vs_tpg;
If a scsi request is then sent we do:
vhost_scsi_handle_vq -> vhost_scsi_get_req -> vhost_vq_get_backend
which sees the vs_tpg we just did a kfree on.
2. Tpg dir removal hang:
This patch fixes an issue where we cannot remove a LIO/target layer
tpg (and structs above it like the target) dir due to the refcount
dropping to -1.
The problem is that if vhost_scsi_set_endpoint detects a tpg is already
in the vs->vs_tpg array or if the tpg has been removed so
target_depend_item fails, the undepend goto handler will do
target_undepend_item on all tpgs in the vs_tpg array dropping their
refcount to 0. At this time vs_tpg contains both the tpgs we have added
in the current vhost_scsi_set_endpoint call as well as tpgs we added in
previous calls which are also in vs->vs_tpg.
Later, when vhost_scsi_clear_endpoint runs it will do
target_undepend_item on all the tpgs in the vs->vs_tpg which will drop
their refcount to -1. Userspace will then not be able to remove the tpg
and will hang when it tries to do rmdir on the tpg dir.
3. Tpg leak:
This fixes a bug where we can leak tpgs and cause them to be
un-removable because the target name is overwritten when
vhost_scsi_set_endpoint is called multiple times but with different
target names.
The bug occurs if a user has called VHOST_SCSI_SET_ENDPOINT and setup
a vhost-scsi device to target/tpg mapping, then calls
VHOST_SCSI_SET_ENDPOINT again with a new target name that has tpgs we
haven't seen before (target1 has tpg1 but target2 has tpg2). When this
happens we don't teardown the old target tpg mapping and just overwrite
the target name and the vs->vs_tpg array. Later when we do
vhost_scsi_clear_endpoint, we are passed in either target1 or target2's
name and we will only match that target's tpgs when we loop over the
vs->vs_tpg. We will then return from the function without doing
target_undepend_item on the tpgs.
Because of all these bugs, it looks like being able to call
vhost_scsi_set_endpoint multiple times was never supported. The major
user, QEMU, already has checks to prevent this use case. So to fix the
issues, this patch prevents vhost_scsi_set_endpoint from being called
if it's already successfully added tpgs. To add, remove or change the
tpg config or target name, you must do a vhost_scsi_clear_endpoint
first.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4f7f46d32c9875004fae1d57ae3c02cc2e6cd6a3 Version: 4f7f46d32c9875004fae1d57ae3c02cc2e6cd6a3 Version: 4f7f46d32c9875004fae1d57ae3c02cc2e6cd6a3 Version: 4f7f46d32c9875004fae1d57ae3c02cc2e6cd6a3 Version: 4f7f46d32c9875004fae1d57ae3c02cc2e6cd6a3 Version: 4f7f46d32c9875004fae1d57ae3c02cc2e6cd6a3 |
||
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CVE-2024-36903 (GCVE-0-2024-36903)
Vulnerability from cvelistv5
Published
2024-05-30 15:29
Modified
2026-07-14 12:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix potential uninit-value access in __ip6_make_skb()
As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in
__ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags
instead of testing HDRINCL on the socket to avoid a race condition which
causes uninit-value access.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 605b056d63302ae84eb136e88d4df49124bd5e0d Version: d65ff2fe877c471aa6e79efa7bd8ff66e147c317 Version: 2c9cefc142c1dc2759e19a92d3b2b3715e985beb Version: ea30388baebcce37fd594d425a65037ca35e59e8 Version: ea30388baebcce37fd594d425a65037ca35e59e8 Version: ea30388baebcce37fd594d425a65037ca35e59e8 Version: 165370522cc48127da564a08584a7391e6341908 Version: f394f690a30a5ec0413c62777a058eaf3d6e10d5 Version: 0cf600ca1bdf1d52df977516ee6cee0cadb1f6b1 Version: 02ed5700f40445af02d1c97db25ffc2d04971d9f Version: 5.10.178 ≤ Version: 5.15.107 ≤ Version: 6.1.24 ≤ Version: 4.14.313 ≤ Version: 4.19.281 ≤ Version: 5.4.241 ≤ Version: 6.2.11 ≤ |
||
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CVE-2025-38162 (GCVE-0-2025-38162)
Vulnerability from cvelistv5
Published
2025-07-03 08:36
Modified
2026-08-05 11:59
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_pipapo: prevent overflow in lookup table allocation
When calculating the lookup table size, ensure the following
multiplication does not overflow:
- desc->field_len[] maximum value is U8_MAX multiplied by
NFT_PIPAPO_GROUPS_PER_BYTE(f) that can be 2, worst case.
- NFT_PIPAPO_BUCKETS(f->bb) is 2^8, worst case.
- sizeof(unsigned long), from sizeof(*f->lt), lt in
struct nft_pipapo_field.
Then, use check_mul_overflow() to multiply by bucket size and then use
check_add_overflow() to the alignment for avx2 (if needed). Finally, add
lt_size_check_overflow() helper and use it to consolidate this.
While at it, replace leftover allocation using the GFP_KERNEL to
GFP_KERNEL_ACCOUNT for consistency, in pipapo_resize().
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-23274 (GCVE-0-2026-23274)
Vulnerability from cvelistv5
Published
2026-03-20 08:08
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels
IDLETIMER revision 0 rules reuse existing timers by label and always call
mod_timer() on timer->timer.
If the label was created first by revision 1 with XT_IDLETIMER_ALARM,
the object uses alarm timer semantics and timer->timer is never initialized.
Reusing that object from revision 0 causes mod_timer() on an uninitialized
timer_list, triggering debugobjects warnings and possible panic when
panic_on_warn=1.
Fix this by rejecting revision 0 rule insertion when an existing timer with
the same label is of ALARM type.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 68983a354a655c35d3fb204489d383a2a051fda7 Version: 68983a354a655c35d3fb204489d383a2a051fda7 Version: 68983a354a655c35d3fb204489d383a2a051fda7 Version: 68983a354a655c35d3fb204489d383a2a051fda7 Version: 68983a354a655c35d3fb204489d383a2a051fda7 Version: 68983a354a655c35d3fb204489d383a2a051fda7 Version: 68983a354a655c35d3fb204489d383a2a051fda7 Version: 68983a354a655c35d3fb204489d383a2a051fda7 |
||
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CVE-2024-57924 (GCVE-0-2024-57924)
Vulnerability from cvelistv5
Published
2025-01-19 11:52
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: relax assertions on failure to encode file handles
Encoding file handles is usually performed by a filesystem >encode_fh()
method that may fail for various reasons.
The legacy users of exportfs_encode_fh(), namely, nfsd and
name_to_handle_at(2) syscall are ready to cope with the possibility
of failure to encode a file handle.
There are a few other users of exportfs_encode_{fh,fid}() that
currently have a WARN_ON() assertion when ->encode_fh() fails.
Relax those assertions because they are wrong.
The second linked bug report states commit 16aac5ad1fa9 ("ovl: support
encoding non-decodable file handles") in v6.6 as the regressing commit,
but this is not accurate.
The aforementioned commit only increases the chances of the assertion
and allows triggering the assertion with the reproducer using overlayfs,
inotify and drop_caches.
Triggering this assertion was always possible with other filesystems and
other reasons of ->encode_fh() failures and more particularly, it was
also possible with the exact same reproducer using overlayfs that is
mounted with options index=on,nfs_export=on also on kernels < v6.6.
Therefore, I am not listing the aforementioned commit as a Fixes commit.
Backport hint: this patch will have a trivial conflict applying to
v6.6.y, and other trivial conflicts applying to stable kernels < v6.6.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-21959 (GCVE-0-2025-21959)
Vulnerability from cvelistv5
Published
2025-04-01 15:46
Modified
2026-08-05 11:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()
Since commit b36e4523d4d5 ("netfilter: nf_conncount: fix garbage
collection confirm race"), `cpu` and `jiffies32` were introduced to
the struct nf_conncount_tuple.
The commit made nf_conncount_add() initialize `conn->cpu` and
`conn->jiffies32` when allocating the struct.
In contrast, count_tree() was not changed to initialize them.
By commit 34848d5c896e ("netfilter: nf_conncount: Split insert and
traversal"), count_tree() was split and the relevant allocation
code now resides in insert_tree().
Initialize `conn->cpu` and `conn->jiffies32` in insert_tree().
BUG: KMSAN: uninit-value in find_or_evict net/netfilter/nf_conncount.c:117 [inline]
BUG: KMSAN: uninit-value in __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143
find_or_evict net/netfilter/nf_conncount.c:117 [inline]
__nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143
count_tree net/netfilter/nf_conncount.c:438 [inline]
nf_conncount_count+0x82f/0x1e80 net/netfilter/nf_conncount.c:521
connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72
__nft_match_eval net/netfilter/nft_compat.c:403 [inline]
nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433
expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288
nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626
nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663
NF_HOOK_LIST include/linux/netfilter.h:350 [inline]
ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633
ip_list_rcv+0x9ef/0xa40 net/ipv4/ip_input.c:669
__netif_receive_skb_list_ptype net/core/dev.c:5936 [inline]
__netif_receive_skb_list_core+0x15c5/0x1670 net/core/dev.c:5983
__netif_receive_skb_list net/core/dev.c:6035 [inline]
netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:6126
netif_receive_skb_list+0x5a/0x460 net/core/dev.c:6178
xdp_recv_frames net/bpf/test_run.c:280 [inline]
xdp_test_run_batch net/bpf/test_run.c:361 [inline]
bpf_test_run_xdp_live+0x2e86/0x3480 net/bpf/test_run.c:390
bpf_prog_test_run_xdp+0xf1d/0x1ae0 net/bpf/test_run.c:1316
bpf_prog_test_run+0x5e5/0xa30 kernel/bpf/syscall.c:4407
__sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5813
__do_sys_bpf kernel/bpf/syscall.c:5902 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5900 [inline]
__ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5900
ia32_sys_call+0x394d/0x4180 arch/x86/include/generated/asm/syscalls_32.h:358
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387
do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412
do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
Uninit was created at:
slab_post_alloc_hook mm/slub.c:4121 [inline]
slab_alloc_node mm/slub.c:4164 [inline]
kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4171
insert_tree net/netfilter/nf_conncount.c:372 [inline]
count_tree net/netfilter/nf_conncount.c:450 [inline]
nf_conncount_count+0x1415/0x1e80 net/netfilter/nf_conncount.c:521
connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72
__nft_match_eval net/netfilter/nft_compat.c:403 [inline]
nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433
expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288
nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626
nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663
NF_HOOK_LIST include/linux/netfilter.h:350 [inline]
ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633
ip_list_rcv+0x9ef/0xa40 net/ip
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 Version: 75af3d78168e654a5cd8bbc4c774f97be836165f Version: 4.14.92 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()\n\nSince commit b36e4523d4d5 (\"netfilter: nf_conncount: fix garbage\ncollection confirm race\"), `cpu` and `jiffies32` were introduced to\nthe struct nf_conncount_tuple.\n\nThe commit made nf_conncount_add() initialize `conn-\u003ecpu` and\n`conn-\u003ejiffies32` when allocating the struct.\nIn contrast, count_tree() was not changed to initialize them.\n\nBy commit 34848d5c896e (\"netfilter: nf_conncount: Split insert and\ntraversal\"), count_tree() was split and the relevant allocation\ncode now resides in insert_tree().\nInitialize `conn-\u003ecpu` and `conn-\u003ejiffies32` in insert_tree().\n\nBUG: KMSAN: uninit-value in find_or_evict net/netfilter/nf_conncount.c:117 [inline]\nBUG: KMSAN: uninit-value in __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\n find_or_evict net/netfilter/nf_conncount.c:117 [inline]\n __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\n count_tree net/netfilter/nf_conncount.c:438 [inline]\n nf_conncount_count+0x82f/0x1e80 net/netfilter/nf_conncount.c:521\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\n ip_list_rcv+0x9ef/0xa40 net/ipv4/ip_input.c:669\n __netif_receive_skb_list_ptype net/core/dev.c:5936 [inline]\n __netif_receive_skb_list_core+0x15c5/0x1670 net/core/dev.c:5983\n __netif_receive_skb_list net/core/dev.c:6035 [inline]\n netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:6126\n netif_receive_skb_list+0x5a/0x460 net/core/dev.c:6178\n xdp_recv_frames net/bpf/test_run.c:280 [inline]\n xdp_test_run_batch net/bpf/test_run.c:361 [inline]\n bpf_test_run_xdp_live+0x2e86/0x3480 net/bpf/test_run.c:390\n bpf_prog_test_run_xdp+0xf1d/0x1ae0 net/bpf/test_run.c:1316\n bpf_prog_test_run+0x5e5/0xa30 kernel/bpf/syscall.c:4407\n __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5813\n __do_sys_bpf kernel/bpf/syscall.c:5902 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5900 [inline]\n __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5900\n ia32_sys_call+0x394d/0x4180 arch/x86/include/generated/asm/syscalls_32.h:358\n do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]\n __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387\n do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450\n entry_SYSENTER_compat_after_hwframe+0x84/0x8e\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:4121 [inline]\n slab_alloc_node mm/slub.c:4164 [inline]\n kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4171\n insert_tree net/netfilter/nf_conncount.c:372 [inline]\n count_tree net/netfilter/nf_conncount.c:450 [inline]\n nf_conncount_count+0x1415/0x1e80 net/netfilter/nf_conncount.c:521\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\n ip_list_rcv+0x9ef/0xa40 net/ip\n---truncated---"
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CVE-2025-38727 (GCVE-0-2025-38727)
Vulnerability from cvelistv5
Published
2025-09-04 15:33
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netlink: avoid infinite retry looping in netlink_unicast()
netlink_attachskb() checks for the socket's read memory allocation
constraints. Firstly, it has:
rmem < READ_ONCE(sk->sk_rcvbuf)
to check if the just increased rmem value fits into the socket's receive
buffer. If not, it proceeds and tries to wait for the memory under:
rmem + skb->truesize > READ_ONCE(sk->sk_rcvbuf)
The checks don't cover the case when skb->truesize + sk->sk_rmem_alloc is
equal to sk->sk_rcvbuf. Thus the function neither successfully accepts
these conditions, nor manages to reschedule the task - and is called in
retry loop for indefinite time which is caught as:
rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 0-....: (25999 ticks this GP) idle=ef2/1/0x4000000000000000 softirq=262269/262269 fqs=6212
(t=26000 jiffies g=230833 q=259957)
NMI backtrace for cpu 0
CPU: 0 PID: 22 Comm: kauditd Not tainted 5.10.240 #68
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc42 04/01/2014
Call Trace:
<IRQ>
dump_stack lib/dump_stack.c:120
nmi_cpu_backtrace.cold lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace lib/nmi_backtrace.c:62
rcu_dump_cpu_stacks kernel/rcu/tree_stall.h:335
rcu_sched_clock_irq.cold kernel/rcu/tree.c:2590
update_process_times kernel/time/timer.c:1953
tick_sched_handle kernel/time/tick-sched.c:227
tick_sched_timer kernel/time/tick-sched.c:1399
__hrtimer_run_queues kernel/time/hrtimer.c:1652
hrtimer_interrupt kernel/time/hrtimer.c:1717
__sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1113
asm_call_irq_on_stack arch/x86/entry/entry_64.S:808
</IRQ>
netlink_attachskb net/netlink/af_netlink.c:1234
netlink_unicast net/netlink/af_netlink.c:1349
kauditd_send_queue kernel/audit.c:776
kauditd_thread kernel/audit.c:897
kthread kernel/kthread.c:328
ret_from_fork arch/x86/entry/entry_64.S:304
Restore the original behavior of the check which commit in Fixes
accidentally missed when restructuring the code.
Found by Linux Verification Center (linuxtesting.org).
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9da025150b7c14a8390fc06aea314c0a4011e82c Version: c4ceaac5c5ba0b992ee1dc88e2a02421549e5c98 Version: fd69af06101090eaa60b3d216ae715f9c0a58e5b Version: 76602d8e13864524382b0687dc32cd8f19164d5a Version: 55baecb9eb90238f60a8350660d6762046ebd3bd Version: 4b8e18af7bea92f8b7fb92d40aeae729209db250 Version: cd7ff61bfffd7000143c42bbffb85eeb792466d6 Version: ae8f160e7eb24240a2a79fc4c815c6a0d4ee16cc Version: ae8f160e7eb24240a2a79fc4c815c6a0d4ee16cc Version: 5.4.296 ≤ Version: 5.10.240 ≤ Version: 5.15.189 ≤ Version: 6.1.146 ≤ Version: 6.6.99 ≤ Version: 6.12.39 ≤ Version: 6.15.7 ≤ |
||
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CVE-2025-71185 (GCVE-0-2025-71185)
Vulnerability from cvelistv5
Published
2026-01-31 11:41
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation
Make sure to drop the reference taken when looking up the crossbar
platform device during am335x route allocation.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 42dbdcc6bf965997c088caff2a8be7f9bf44f701 Version: 42dbdcc6bf965997c088caff2a8be7f9bf44f701 Version: 42dbdcc6bf965997c088caff2a8be7f9bf44f701 Version: 42dbdcc6bf965997c088caff2a8be7f9bf44f701 Version: 42dbdcc6bf965997c088caff2a8be7f9bf44f701 Version: 42dbdcc6bf965997c088caff2a8be7f9bf44f701 Version: 42dbdcc6bf965997c088caff2a8be7f9bf44f701 |
||
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CVE-2026-23370 (GCVE-0-2026-23370)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: dell-wmi-sysman: Don't hex dump plaintext password data
set_new_password() hex dumps the entire buffer, which contains plaintext
password data, including current and new passwords. Remove the hex dump
to avoid leaking credentials.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e8a60aa7404bfef37705da5607c97737073ac38d Version: e8a60aa7404bfef37705da5607c97737073ac38d Version: e8a60aa7404bfef37705da5607c97737073ac38d Version: e8a60aa7404bfef37705da5607c97737073ac38d Version: e8a60aa7404bfef37705da5607c97737073ac38d Version: e8a60aa7404bfef37705da5607c97737073ac38d Version: e8a60aa7404bfef37705da5607c97737073ac38d |
||
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CVE-2025-39953 (GCVE-0-2025-39953)
Vulnerability from cvelistv5
Published
2025-10-04 07:31
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
cgroup: split cgroup_destroy_wq into 3 workqueues
A hung task can occur during [1] LTP cgroup testing when repeatedly
mounting/unmounting perf_event and net_prio controllers with
systemd.unified_cgroup_hierarchy=1. The hang manifests in
cgroup_lock_and_drain_offline() during root destruction.
Related case:
cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event
cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio
Call Trace:
cgroup_lock_and_drain_offline+0x14c/0x1e8
cgroup_destroy_root+0x3c/0x2c0
css_free_rwork_fn+0x248/0x338
process_one_work+0x16c/0x3b8
worker_thread+0x22c/0x3b0
kthread+0xec/0x100
ret_from_fork+0x10/0x20
Root Cause:
CPU0 CPU1
mount perf_event umount net_prio
cgroup1_get_tree cgroup_kill_sb
rebind_subsystems // root destruction enqueues
// cgroup_destroy_wq
// kill all perf_event css
// one perf_event css A is dying
// css A offline enqueues cgroup_destroy_wq
// root destruction will be executed first
css_free_rwork_fn
cgroup_destroy_root
cgroup_lock_and_drain_offline
// some perf descendants are dying
// cgroup_destroy_wq max_active = 1
// waiting for css A to die
Problem scenario:
1. CPU0 mounts perf_event (rebind_subsystems)
2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work
3. A dying perf_event CSS gets queued for offline after root destruction
4. Root destruction waits for offline completion, but offline work is
blocked behind root destruction in cgroup_destroy_wq (max_active=1)
Solution:
Split cgroup_destroy_wq into three dedicated workqueues:
cgroup_offline_wq – Handles CSS offline operations
cgroup_release_wq – Manages resource release
cgroup_free_wq – Performs final memory deallocation
This separation eliminates blocking in the CSS free path while waiting for
offline operations to complete.
[1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 Version: 334c3679ec4b2b113c35ebe37d2018b112dd5013 |
||
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CVE-2026-43040 (GCVE-0-2026-43040)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-07-14 12:49
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak
When processing Router Advertisements with user options the kernel
builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct
has three padding fields that are never zeroed and can leak kernel data
The fix is simple, just zeroes the padding fields.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 31910575a9de61e78065e93846e8e7a4894a18bf Version: 31910575a9de61e78065e93846e8e7a4894a18bf Version: 31910575a9de61e78065e93846e8e7a4894a18bf Version: 31910575a9de61e78065e93846e8e7a4894a18bf Version: 31910575a9de61e78065e93846e8e7a4894a18bf Version: 31910575a9de61e78065e93846e8e7a4894a18bf Version: 31910575a9de61e78065e93846e8e7a4894a18bf Version: 31910575a9de61e78065e93846e8e7a4894a18bf |
||
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CVE-2025-23143 (GCVE-0-2025-23143)
Vulnerability from cvelistv5
Published
2025-05-01 12:55
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.
When I ran the repro [0] and waited a few seconds, I observed two
LOCKDEP splats: a warning immediately followed by a null-ptr-deref. [1]
Reproduction Steps:
1) Mount CIFS
2) Add an iptables rule to drop incoming FIN packets for CIFS
3) Unmount CIFS
4) Unload the CIFS module
5) Remove the iptables rule
At step 3), the CIFS module calls sock_release() for the underlying
TCP socket, and it returns quickly. However, the socket remains in
FIN_WAIT_1 because incoming FIN packets are dropped.
At this point, the module's refcnt is 0 while the socket is still
alive, so the following rmmod command succeeds.
# ss -tan
State Recv-Q Send-Q Local Address:Port Peer Address:Port
FIN-WAIT-1 0 477 10.0.2.15:51062 10.0.0.137:445
# lsmod | grep cifs
cifs 1159168 0
This highlights a discrepancy between the lifetime of the CIFS module
and the underlying TCP socket. Even after CIFS calls sock_release()
and it returns, the TCP socket does not die immediately in order to
close the connection gracefully.
While this is generally fine, it causes an issue with LOCKDEP because
CIFS assigns a different lock class to the TCP socket's sk->sk_lock
using sock_lock_init_class_and_name().
Once an incoming packet is processed for the socket or a timer fires,
sk->sk_lock is acquired.
Then, LOCKDEP checks the lock context in check_wait_context(), where
hlock_class() is called to retrieve the lock class. However, since
the module has already been unloaded, hlock_class() logs a warning
and returns NULL, triggering the null-ptr-deref.
If LOCKDEP is enabled, we must ensure that a module calling
sock_lock_init_class_and_name() (CIFS, NFS, etc) cannot be unloaded
while such a socket is still alive to prevent this issue.
Let's hold the module reference in sock_lock_init_class_and_name()
and release it when the socket is freed in sk_prot_free().
Note that sock_lock_init() clears sk->sk_owner for svc_create_socket()
that calls sock_lock_init_class_and_name() for a listening socket,
which clones a socket by sk_clone_lock() without GFP_ZERO.
[0]:
CIFS_SERVER="10.0.0.137"
CIFS_PATH="//${CIFS_SERVER}/Users/Administrator/Desktop/CIFS_TEST"
DEV="enp0s3"
CRED="/root/WindowsCredential.txt"
MNT=$(mktemp -d /tmp/XXXXXX)
mount -t cifs ${CIFS_PATH} ${MNT} -o vers=3.0,credentials=${CRED},cache=none,echo_interval=1
iptables -A INPUT -s ${CIFS_SERVER} -j DROP
for i in $(seq 10);
do
umount ${MNT}
rmmod cifs
sleep 1
done
rm -r ${MNT}
iptables -D INPUT -s ${CIFS_SERVER} -j DROP
[1]:
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 10 PID: 0 at kernel/locking/lockdep.c:234 hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)
Modules linked in: cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]
CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Not tainted 6.14.0 #36
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)
...
Call Trace:
<IRQ>
__lock_acquire (kernel/locking/lockdep.c:4853 kernel/locking/lockdep.c:5178)
lock_acquire (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853 kernel/locking/lockdep.c:5816)
_raw_spin_lock_nested (kernel/locking/spinlock.c:379)
tcp_v4_rcv (./include/linux/skbuff.h:1678 ./include/net/tcp.h:2547 net/ipv4/tcp_ipv4.c:2350)
...
BUG: kernel NULL pointer dereference, address: 00000000000000c4
PF: supervisor read access in kernel mode
PF: error_code(0x0000) - not-present page
PGD 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Tainted: G W 6.14.0 #36
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:__lock_acquire (kernel/
---truncated---
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 Version: ed07536ed6731775219c1df7fa26a7588753e693 |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.\n\nWhen I ran the repro [0] and waited a few seconds, I observed two\nLOCKDEP splats: a warning immediately followed by a null-ptr-deref. [1]\n\nReproduction Steps:\n\n 1) Mount CIFS\n 2) Add an iptables rule to drop incoming FIN packets for CIFS\n 3) Unmount CIFS\n 4) Unload the CIFS module\n 5) Remove the iptables rule\n\nAt step 3), the CIFS module calls sock_release() for the underlying\nTCP socket, and it returns quickly. However, the socket remains in\nFIN_WAIT_1 because incoming FIN packets are dropped.\n\nAt this point, the module\u0027s refcnt is 0 while the socket is still\nalive, so the following rmmod command succeeds.\n\n # ss -tan\n State Recv-Q Send-Q Local Address:Port Peer Address:Port\n FIN-WAIT-1 0 477 10.0.2.15:51062 10.0.0.137:445\n\n # lsmod | grep cifs\n cifs 1159168 0\n\nThis highlights a discrepancy between the lifetime of the CIFS module\nand the underlying TCP socket. Even after CIFS calls sock_release()\nand it returns, the TCP socket does not die immediately in order to\nclose the connection gracefully.\n\nWhile this is generally fine, it causes an issue with LOCKDEP because\nCIFS assigns a different lock class to the TCP socket\u0027s sk-\u003esk_lock\nusing sock_lock_init_class_and_name().\n\nOnce an incoming packet is processed for the socket or a timer fires,\nsk-\u003esk_lock is acquired.\n\nThen, LOCKDEP checks the lock context in check_wait_context(), where\nhlock_class() is called to retrieve the lock class. However, since\nthe module has already been unloaded, hlock_class() logs a warning\nand returns NULL, triggering the null-ptr-deref.\n\nIf LOCKDEP is enabled, we must ensure that a module calling\nsock_lock_init_class_and_name() (CIFS, NFS, etc) cannot be unloaded\nwhile such a socket is still alive to prevent this issue.\n\nLet\u0027s hold the module reference in sock_lock_init_class_and_name()\nand release it when the socket is freed in sk_prot_free().\n\nNote that sock_lock_init() clears sk-\u003esk_owner for svc_create_socket()\nthat calls sock_lock_init_class_and_name() for a listening socket,\nwhich clones a socket by sk_clone_lock() without GFP_ZERO.\n\n[0]:\nCIFS_SERVER=\"10.0.0.137\"\nCIFS_PATH=\"//${CIFS_SERVER}/Users/Administrator/Desktop/CIFS_TEST\"\nDEV=\"enp0s3\"\nCRED=\"/root/WindowsCredential.txt\"\n\nMNT=$(mktemp -d /tmp/XXXXXX)\nmount -t cifs ${CIFS_PATH} ${MNT} -o vers=3.0,credentials=${CRED},cache=none,echo_interval=1\n\niptables -A INPUT -s ${CIFS_SERVER} -j DROP\n\nfor i in $(seq 10);\ndo\n umount ${MNT}\n rmmod cifs\n sleep 1\ndone\n\nrm -r ${MNT}\n\niptables -D INPUT -s ${CIFS_SERVER} -j DROP\n\n[1]:\nDEBUG_LOCKS_WARN_ON(1)\nWARNING: CPU: 10 PID: 0 at kernel/locking/lockdep.c:234 hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)\nModules linked in: cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]\nCPU: 10 UID: 0 PID: 0 Comm: swapper/10 Not tainted 6.14.0 #36\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nRIP: 0010:hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)\n...\nCall Trace:\n \u003cIRQ\u003e\n __lock_acquire (kernel/locking/lockdep.c:4853 kernel/locking/lockdep.c:5178)\n lock_acquire (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853 kernel/locking/lockdep.c:5816)\n _raw_spin_lock_nested (kernel/locking/spinlock.c:379)\n tcp_v4_rcv (./include/linux/skbuff.h:1678 ./include/net/tcp.h:2547 net/ipv4/tcp_ipv4.c:2350)\n...\n\nBUG: kernel NULL pointer dereference, address: 00000000000000c4\n PF: supervisor read access in kernel mode\n PF: error_code(0x0000) - not-present page\nPGD 0\nOops: Oops: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 10 UID: 0 PID: 0 Comm: swapper/10 Tainted: G W 6.14.0 #36\nTainted: [W]=WARN\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nRIP: 0010:__lock_acquire (kernel/\n---truncated---"
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CVE-2026-31469 (GCVE-0-2026-31469)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
virtio_net: Fix UAF on dst_ops when IFF_XMIT_DST_RELEASE is cleared and napi_tx is false
A UAF issue occurs when the virtio_net driver is configured with napi_tx=N
and the device's IFF_XMIT_DST_RELEASE flag is cleared
(e.g., during the configuration of tc route filter rules).
When IFF_XMIT_DST_RELEASE is removed from the net_device, the network stack
expects the driver to hold the reference to skb->dst until the packet
is fully transmitted and freed. In virtio_net with napi_tx=N,
skbs may remain in the virtio transmit ring for an extended period.
If the network namespace is destroyed while these skbs are still pending,
the corresponding dst_ops structure has freed. When a subsequent packet
is transmitted, free_old_xmit() is triggered to clean up old skbs.
It then calls dst_release() on the skb associated with the stale dst_entry.
Since the dst_ops (referenced by the dst_entry) has already been freed,
a UAF kernel paging request occurs.
fix it by adds skb_dst_drop(skb) in start_xmit to explicitly release
the dst reference before the skb is queued in virtio_net.
Call Trace:
Unable to handle kernel paging request at virtual address ffff80007e150000
CPU: 2 UID: 0 PID: 6236 Comm: ping Kdump: loaded Not tainted 7.0.0-rc1+ #6 PREEMPT
...
percpu_counter_add_batch+0x3c/0x158 lib/percpu_counter.c:98 (P)
dst_release+0xe0/0x110 net/core/dst.c:177
skb_release_head_state+0xe8/0x108 net/core/skbuff.c:1177
sk_skb_reason_drop+0x54/0x2d8 net/core/skbuff.c:1255
dev_kfree_skb_any_reason+0x64/0x78 net/core/dev.c:3469
napi_consume_skb+0x1c4/0x3a0 net/core/skbuff.c:1527
__free_old_xmit+0x164/0x230 drivers/net/virtio_net.c:611 [virtio_net]
free_old_xmit drivers/net/virtio_net.c:1081 [virtio_net]
start_xmit+0x7c/0x530 drivers/net/virtio_net.c:3329 [virtio_net]
...
Reproduction Steps:
NETDEV="enp3s0"
config_qdisc_route_filter() {
tc qdisc del dev $NETDEV root
tc qdisc add dev $NETDEV root handle 1: prio
tc filter add dev $NETDEV parent 1:0 \
protocol ip prio 100 route to 100 flowid 1:1
ip route add 192.168.1.100/32 dev $NETDEV realm 100
}
test_ns() {
ip netns add testns
ip link set $NETDEV netns testns
ip netns exec testns ifconfig $NETDEV 10.0.32.46/24
ip netns exec testns ping -c 1 10.0.32.1
ip netns del testns
}
config_qdisc_route_filter
test_ns
sleep 2
test_ns
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 Version: f2fc6a54585a1be6669613a31fbaba2ecbadcd36 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_net: Fix UAF on dst_ops when IFF_XMIT_DST_RELEASE is cleared and napi_tx is false\n\nA UAF issue occurs when the virtio_net driver is configured with napi_tx=N\nand the device\u0027s IFF_XMIT_DST_RELEASE flag is cleared\n(e.g., during the configuration of tc route filter rules).\n\nWhen IFF_XMIT_DST_RELEASE is removed from the net_device, the network stack\nexpects the driver to hold the reference to skb-\u003edst until the packet\nis fully transmitted and freed. In virtio_net with napi_tx=N,\nskbs may remain in the virtio transmit ring for an extended period.\n\nIf the network namespace is destroyed while these skbs are still pending,\nthe corresponding dst_ops structure has freed. When a subsequent packet\nis transmitted, free_old_xmit() is triggered to clean up old skbs.\nIt then calls dst_release() on the skb associated with the stale dst_entry.\nSince the dst_ops (referenced by the dst_entry) has already been freed,\na UAF kernel paging request occurs.\n\nfix it by adds skb_dst_drop(skb) in start_xmit to explicitly release\nthe dst reference before the skb is queued in virtio_net.\n\nCall Trace:\n Unable to handle kernel paging request at virtual address ffff80007e150000\n CPU: 2 UID: 0 PID: 6236 Comm: ping Kdump: loaded Not tainted 7.0.0-rc1+ #6 PREEMPT\n ...\n percpu_counter_add_batch+0x3c/0x158 lib/percpu_counter.c:98 (P)\n dst_release+0xe0/0x110 net/core/dst.c:177\n skb_release_head_state+0xe8/0x108 net/core/skbuff.c:1177\n sk_skb_reason_drop+0x54/0x2d8 net/core/skbuff.c:1255\n dev_kfree_skb_any_reason+0x64/0x78 net/core/dev.c:3469\n napi_consume_skb+0x1c4/0x3a0 net/core/skbuff.c:1527\n __free_old_xmit+0x164/0x230 drivers/net/virtio_net.c:611 [virtio_net]\n free_old_xmit drivers/net/virtio_net.c:1081 [virtio_net]\n start_xmit+0x7c/0x530 drivers/net/virtio_net.c:3329 [virtio_net]\n ...\n\nReproduction Steps:\nNETDEV=\"enp3s0\"\n\nconfig_qdisc_route_filter() {\n tc qdisc del dev $NETDEV root\n tc qdisc add dev $NETDEV root handle 1: prio\n tc filter add dev $NETDEV parent 1:0 \\\n\tprotocol ip prio 100 route to 100 flowid 1:1\n ip route add 192.168.1.100/32 dev $NETDEV realm 100\n}\n\ntest_ns() {\n ip netns add testns\n ip link set $NETDEV netns testns\n ip netns exec testns ifconfig $NETDEV 10.0.32.46/24\n ip netns exec testns ping -c 1 10.0.32.1\n ip netns del testns\n}\n\nconfig_qdisc_route_filter\n\ntest_ns\nsleep 2\ntest_ns"
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CVE-2025-40022 (GCVE-0-2025-40022)
Vulnerability from cvelistv5
Published
2025-10-24 12:24
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: af_alg - Fix incorrect boolean values in af_alg_ctx
Commit 1b34cbbf4f01 ("crypto: af_alg - Disallow concurrent writes in
af_alg_sendmsg") changed some fields from bool to 1-bit bitfields of
type u32.
However, some assignments to these fields, specifically 'more' and
'merge', assign values greater than 1. These relied on C's implicit
conversion to bool, such that zero becomes false and nonzero becomes
true.
With a 1-bit bitfields of type u32 instead, mod 2 of the value is taken
instead, resulting in 0 being assigned in some cases when 1 was intended.
Fix this by restoring the bool type.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0f28c4adbc4a97437874c9b669fd7958a8c6d6ce Version: e4c1ec11132ec466f7362a95f36a506ce4dc08c9 Version: 1f323a48e9b5ebfe6dc7d130fdf5c3c0e92a07c8 Version: 7c4491b5644e3a3708f3dbd7591be0a570135b84 Version: 9aee87da5572b3a14075f501752e209801160d3d Version: 45bcf60fe49b37daab1acee57b27211ad1574042 Version: 1b34cbbf4f011a121ef7b2d7d6e6920a036d5285 |
||
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CVE-2025-38125 (GCVE-0-2025-38125)
Vulnerability from cvelistv5
Published
2025-07-03 08:35
Modified
2026-07-14 12:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: make sure that ptp_rate is not 0 before configuring EST
If the ptp_rate recorded earlier in the driver happens to be 0, this
bogus value will propagate up to EST configuration, where it will
trigger a division by 0.
Prevent this division by 0 by adding the corresponding check and error
code.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2026-31555 (GCVE-0-2026-31555)
Vulnerability from cvelistv5
Published
2026-04-24 14:35
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
futex: Clear stale exiting pointer in futex_lock_pi() retry path
Fuzzying/stressing futexes triggered:
WARNING: kernel/futex/core.c:825 at wait_for_owner_exiting+0x7a/0x80, CPU#11: futex_lock_pi_s/524
When futex_lock_pi_atomic() sees the owner is exiting, it returns -EBUSY
and stores a refcounted task pointer in 'exiting'.
After wait_for_owner_exiting() consumes that reference, the local pointer
is never reset to nil. Upon a retry, if futex_lock_pi_atomic() returns a
different error, the bogus pointer is passed to wait_for_owner_exiting().
CPU0 CPU1 CPU2
futex_lock_pi(uaddr)
// acquires the PI futex
exit()
futex_cleanup_begin()
futex_state = EXITING;
futex_lock_pi(uaddr)
futex_lock_pi_atomic()
attach_to_pi_owner()
// observes EXITING
*exiting = owner; // takes ref
return -EBUSY
wait_for_owner_exiting(-EBUSY, owner)
put_task_struct(); // drops ref
// exiting still points to owner
goto retry;
futex_lock_pi_atomic()
lock_pi_update_atomic()
cmpxchg(uaddr)
*uaddr ^= WAITERS // whatever
// value changed
return -EAGAIN;
wait_for_owner_exiting(-EAGAIN, exiting) // stale
WARN_ON_ONCE(exiting)
Fix this by resetting upon retry, essentially aligning it with requeue_pi.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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| Linux | Linux |
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CVE-2026-3497 (GCVE-0-2026-3497)
Vulnerability from cvelistv5
Published
2026-03-12 18:27
Modified
2026-08-21 12:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-908 - Use of Uninitialized Resource
Summary
Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.
References
Impacted products
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CVE-2025-61985 (GCVE-0-2025-61985)
Vulnerability from cvelistv5
Published
2025-10-06 00:00
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-158 - Improper Neutralization of Null Byte or NUL Character
Summary
ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code execution when a ProxyCommand is used.
References
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CVE-2025-21764 (GCVE-0-2025-21764)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ndisc: use RCU protection in ndisc_alloc_skb()
ndisc_alloc_skb() can be called without RTNL or RCU being held.
Add RCU protection to avoid possible UAF.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 Version: de09334b9326632bbf1a74bfd8b01866cbbf2f61 |
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CVE-2026-31665 (GCVE-0-2026-31665)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-08-05 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_ct: fix use-after-free in timeout object destroy
nft_ct_timeout_obj_destroy() frees the timeout object with kfree()
immediately after nf_ct_untimeout(), without waiting for an RCU grace
period. Concurrent packet processing on other CPUs may still hold
RCU-protected references to the timeout object obtained via
rcu_dereference() in nf_ct_timeout_data().
Add an rcu_head to struct nf_ct_timeout and use kfree_rcu() to defer
freeing until after an RCU grace period, matching the approach already
used in nfnetlink_cttimeout.c.
KASAN report:
BUG: KASAN: slab-use-after-free in nf_conntrack_tcp_packet+0x1381/0x29d0
Read of size 4 at addr ffff8881035fe19c by task exploit/80
Call Trace:
nf_conntrack_tcp_packet+0x1381/0x29d0
nf_conntrack_in+0x612/0x8b0
nf_hook_slow+0x70/0x100
__ip_local_out+0x1b2/0x210
tcp_sendmsg_locked+0x722/0x1580
__sys_sendto+0x2d8/0x320
Allocated by task 75:
nft_ct_timeout_obj_init+0xf6/0x290
nft_obj_init+0x107/0x1b0
nf_tables_newobj+0x680/0x9c0
nfnetlink_rcv_batch+0xc29/0xe00
Freed by task 26:
nft_obj_destroy+0x3f/0xa0
nf_tables_trans_destroy_work+0x51c/0x5c0
process_one_work+0x2c4/0x5a0
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 Version: 7e0b2b57f01d183e1c84114f1f2287737358d748 |
||
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CVE-2025-39845 (GCVE-0-2025-39845)
Vulnerability from cvelistv5
Published
2025-09-19 15:26
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
Define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() to ensure
page tables are properly synchronized when calling p*d_populate_kernel().
For 5-level paging, synchronization is performed via
pgd_populate_kernel(). In 4-level paging, pgd_populate() is a no-op, so
synchronization is instead performed at the P4D level via
p4d_populate_kernel().
This fixes intermittent boot failures on systems using 4-level paging and
a large amount of persistent memory:
BUG: unable to handle page fault for address: ffffe70000000034
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: 0002 [#1] SMP NOPTI
RIP: 0010:__init_single_page+0x9/0x6d
Call Trace:
<TASK>
__init_zone_device_page+0x17/0x5d
memmap_init_zone_device+0x154/0x1bb
pagemap_range+0x2e0/0x40f
memremap_pages+0x10b/0x2f0
devm_memremap_pages+0x1e/0x60
dev_dax_probe+0xce/0x2ec [device_dax]
dax_bus_probe+0x6d/0xc9
[... snip ...]
</TASK>
It also fixes a crash in vmemmap_set_pmd() caused by accessing vmemmap
before sync_global_pgds() [1]:
BUG: unable to handle page fault for address: ffffeb3ff1200000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: Oops: 0002 [#1] PREEMPT SMP NOPTI
Tainted: [W]=WARN
RIP: 0010:vmemmap_set_pmd+0xff/0x230
<TASK>
vmemmap_populate_hugepages+0x176/0x180
vmemmap_populate+0x34/0x80
__populate_section_memmap+0x41/0x90
sparse_add_section+0x121/0x3e0
__add_pages+0xba/0x150
add_pages+0x1d/0x70
memremap_pages+0x3dc/0x810
devm_memremap_pages+0x1c/0x60
xe_devm_add+0x8b/0x100 [xe]
xe_tile_init_noalloc+0x6a/0x70 [xe]
xe_device_probe+0x48c/0x740 [xe]
[... snip ...]
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8d400913c231bd1da74067255816453f96cd35b0 Version: 8d400913c231bd1da74067255816453f96cd35b0 Version: 8d400913c231bd1da74067255816453f96cd35b0 Version: 8d400913c231bd1da74067255816453f96cd35b0 Version: 8d400913c231bd1da74067255816453f96cd35b0 Version: 8d400913c231bd1da74067255816453f96cd35b0 |
||
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CVE-2026-23392 (GCVE-0-2026-23392)
Vulnerability from cvelistv5
Published
2026-03-25 10:33
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: release flowtable after rcu grace period on error
Call synchronize_rcu() after unregistering the hooks from error path,
since a hook that already refers to this flowtable can be already
registered, exposing this flowtable to packet path and nfnetlink_hook
control plane.
This error path is rare, it should only happen by reaching the maximum
number hooks or by failing to set up to hardware offload, just call
synchronize_rcu().
There is a check for already used device hooks by different flowtable
that could result in EEXIST at this late stage. The hook parser can be
updated to perform this check earlier to this error path really becomes
rarely exercised.
Uncovered by KASAN reported as use-after-free from nfnetlink_hook path
when dumping hooks.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3b49e2e94e6ebb8b23d0955d9e898254455734f8 Version: 3b49e2e94e6ebb8b23d0955d9e898254455734f8 Version: 3b49e2e94e6ebb8b23d0955d9e898254455734f8 Version: 3b49e2e94e6ebb8b23d0955d9e898254455734f8 Version: 3b49e2e94e6ebb8b23d0955d9e898254455734f8 Version: 3b49e2e94e6ebb8b23d0955d9e898254455734f8 |
||
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CVE-2025-40078 (GCVE-0-2025-40078)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Explicitly check accesses to bpf_sock_addr
Syzkaller found a kernel warning on the following sock_addr program:
0: r0 = 0
1: r2 = *(u32 *)(r1 +60)
2: exit
which triggers:
verifier bug: error during ctx access conversion (0)
This is happening because offset 60 in bpf_sock_addr corresponds to an
implicit padding of 4 bytes, right after msg_src_ip4. Access to this
padding isn't rejected in sock_addr_is_valid_access and it thus later
fails to convert the access.
This patch fixes it by explicitly checking the various fields of
bpf_sock_addr in sock_addr_is_valid_access.
I checked the other ctx structures and is_valid_access functions and
didn't find any other similar cases. Other cases of (properly handled)
padding are covered in new tests in a subsequent patch.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 |
||
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CVE-2025-21731 (GCVE-0-2025-21731)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nbd: don't allow reconnect after disconnect
Following process can cause nbd_config UAF:
1) grab nbd_config temporarily;
2) nbd_genl_disconnect() flush all recv_work() and release the
initial reference:
nbd_genl_disconnect
nbd_disconnect_and_put
nbd_disconnect
flush_workqueue(nbd->recv_workq)
if (test_and_clear_bit(NBD_RT_HAS_CONFIG_REF, ...))
nbd_config_put
-> due to step 1), reference is still not zero
3) nbd_genl_reconfigure() queue recv_work() again;
nbd_genl_reconfigure
config = nbd_get_config_unlocked(nbd)
if (!config)
-> succeed
if (!test_bit(NBD_RT_BOUND, ...))
-> succeed
nbd_reconnect_socket
queue_work(nbd->recv_workq, &args->work)
4) step 1) release the reference;
5) Finially, recv_work() will trigger UAF:
recv_work
nbd_config_put(nbd)
-> nbd_config is freed
atomic_dec(&config->recv_threads)
-> UAF
Fix the problem by clearing NBD_RT_BOUND in nbd_genl_disconnect(), so
that nbd_genl_reconfigure() will fail.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b7aa3d39385dc2d95899f9e379623fef446a2acd Version: b7aa3d39385dc2d95899f9e379623fef446a2acd Version: b7aa3d39385dc2d95899f9e379623fef446a2acd Version: b7aa3d39385dc2d95899f9e379623fef446a2acd Version: b7aa3d39385dc2d95899f9e379623fef446a2acd Version: b7aa3d39385dc2d95899f9e379623fef446a2acd Version: b7aa3d39385dc2d95899f9e379623fef446a2acd Version: b7aa3d39385dc2d95899f9e379623fef446a2acd |
||
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CVE-2024-54458 (GCVE-0-2024-54458)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: ufs: bsg: Set bsg_queue to NULL after removal
Currently, this does not cause any issues, but I believe it is necessary to
set bsg_queue to NULL after removing it to prevent potential use-after-free
(UAF) access.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: df032bf27a414acf61c957ec2fad22a57d903b39 Version: df032bf27a414acf61c957ec2fad22a57d903b39 Version: df032bf27a414acf61c957ec2fad22a57d903b39 Version: df032bf27a414acf61c957ec2fad22a57d903b39 Version: df032bf27a414acf61c957ec2fad22a57d903b39 Version: df032bf27a414acf61c957ec2fad22a57d903b39 Version: df032bf27a414acf61c957ec2fad22a57d903b39 |
||
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CVE-2025-21648 (GCVE-0-2025-21648)
Vulnerability from cvelistv5
Published
2025-01-19 10:18
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: clamp maximum hashtable size to INT_MAX
Use INT_MAX as maximum size for the conntrack hashtable. Otherwise, it
is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof() when
resizing hashtable because __GFP_NOWARN is unset. See:
0708a0afe291 ("mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls")
Note: hashtable resize is only possible from init_netns.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 Version: 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 Version: 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 Version: 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 Version: 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 Version: 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 |
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CVE-2025-39756 (GCVE-0-2025-39756)
Vulnerability from cvelistv5
Published
2025-09-11 16:52
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: Prevent file descriptor table allocations exceeding INT_MAX
When sysctl_nr_open is set to a very high value (for example, 1073741816
as set by systemd), processes attempting to use file descriptors near
the limit can trigger massive memory allocation attempts that exceed
INT_MAX, resulting in a WARNING in mm/slub.c:
WARNING: CPU: 0 PID: 44 at mm/slub.c:5027 __kvmalloc_node_noprof+0x21a/0x288
This happens because kvmalloc_array() and kvmalloc() check if the
requested size exceeds INT_MAX and emit a warning when the allocation is
not flagged with __GFP_NOWARN.
Specifically, when nr_open is set to 1073741816 (0x3ffffff8) and a
process calls dup2(oldfd, 1073741880), the kernel attempts to allocate:
- File descriptor array: 1073741880 * 8 bytes = 8,589,935,040 bytes
- Multiple bitmaps: ~400MB
- Total allocation size: > 8GB (exceeding INT_MAX = 2,147,483,647)
Reproducer:
1. Set /proc/sys/fs/nr_open to 1073741816:
# echo 1073741816 > /proc/sys/fs/nr_open
2. Run a program that uses a high file descriptor:
#include <unistd.h>
#include <sys/resource.h>
int main() {
struct rlimit rlim = {1073741824, 1073741824};
setrlimit(RLIMIT_NOFILE, &rlim);
dup2(2, 1073741880); // Triggers the warning
return 0;
}
3. Observe WARNING in dmesg at mm/slub.c:5027
systemd commit a8b627a introduced automatic bumping of fs.nr_open to the
maximum possible value. The rationale was that systems with memory
control groups (memcg) no longer need separate file descriptor limits
since memory is properly accounted. However, this change overlooked
that:
1. The kernel's allocation functions still enforce INT_MAX as a maximum
size regardless of memcg accounting
2. Programs and tests that legitimately test file descriptor limits can
inadvertently trigger massive allocations
3. The resulting allocations (>8GB) are impractical and will always fail
systemd's algorithm starts with INT_MAX and keeps halving the value
until the kernel accepts it. On most systems, this results in nr_open
being set to 1073741816 (0x3ffffff8), which is just under 1GB of file
descriptors.
While processes rarely use file descriptors near this limit in normal
operation, certain selftests (like
tools/testing/selftests/core/unshare_test.c) and programs that test file
descriptor limits can trigger this issue.
Fix this by adding a check in alloc_fdtable() to ensure the requested
allocation size does not exceed INT_MAX. This causes the operation to
fail with -EMFILE instead of triggering a kernel warning and avoids the
impractical >8GB memory allocation request.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b Version: 9cfe015aa424b3c003baba3841a60dd9b5ad319b |
||
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CVE-2025-71104 (GCVE-0-2025-71104)
Vulnerability from cvelistv5
Published
2026-01-14 15:05
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer
When advancing the target expiration for the guest's APIC timer in periodic
mode, set the expiration to "now" if the target expiration is in the past
(similar to what is done in update_target_expiration()). Blindly adding
the period to the previous target expiration can result in KVM generating
a practically unbounded number of hrtimer IRQs due to programming an
expired timer over and over. In extreme scenarios, e.g. if userspace
pauses/suspends a VM for an extended duration, this can even cause hard
lockups in the host.
Currently, the bug only affects Intel CPUs when using the hypervisor timer
(HV timer), a.k.a. the VMX preemption timer. Unlike the software timer,
a.k.a. hrtimer, which KVM keeps running even on exits to userspace, the
HV timer only runs while the guest is active. As a result, if the vCPU
does not run for an extended duration, there will be a huge gap between
the target expiration and the current time the vCPU resumes running.
Because the target expiration is incremented by only one period on each
timer expiration, this leads to a series of timer expirations occurring
rapidly after the vCPU/VM resumes.
More critically, when the vCPU first triggers a periodic HV timer
expiration after resuming, advancing the expiration by only one period
will result in a target expiration in the past. As a result, the delta
may be calculated as a negative value. When the delta is converted into
an absolute value (tscdeadline is an unsigned u64), the resulting value
can overflow what the HV timer is capable of programming. I.e. the large
value will exceed the VMX Preemption Timer's maximum bit width of
cpu_preemption_timer_multi + 32, and thus cause KVM to switch from the
HV timer to the software timer (hrtimers).
After switching to the software timer, periodic timer expiration callbacks
may be executed consecutively within a single clock interrupt handler,
because hrtimers honors KVM's request for an expiration in the past and
immediately re-invokes KVM's callback after reprogramming. And because
the interrupt handler runs with IRQs disabled, restarting KVM's hrtimer
over and over until the target expiration is advanced to "now" can result
in a hard lockup.
E.g. the following hard lockup was triggered in the host when running a
Windows VM (only relevant because it used the APIC timer in periodic mode)
after resuming the VM from a long suspend (in the host).
NMI watchdog: Watchdog detected hard LOCKUP on cpu 45
...
RIP: 0010:advance_periodic_target_expiration+0x4d/0x80 [kvm]
...
RSP: 0018:ff4f88f5d98d8ef0 EFLAGS: 00000046
RAX: fff0103f91be678e RBX: fff0103f91be678e RCX: 00843a7d9e127bcc
RDX: 0000000000000002 RSI: 0052ca4003697505 RDI: ff440d5bfbdbd500
RBP: ff440d5956f99200 R08: ff2ff2a42deb6a84 R09: 000000000002a6c0
R10: 0122d794016332b3 R11: 0000000000000000 R12: ff440db1af39cfc0
R13: ff440db1af39cfc0 R14: ffffffffc0d4a560 R15: ff440db1af39d0f8
FS: 00007f04a6ffd700(0000) GS:ff440db1af380000(0000) knlGS:000000e38a3b8000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000d5651feff8 CR3: 000000684e038002 CR4: 0000000000773ee0
PKRU: 55555554
Call Trace:
<IRQ>
apic_timer_fn+0x31/0x50 [kvm]
__hrtimer_run_queues+0x100/0x280
hrtimer_interrupt+0x100/0x210
? ttwu_do_wakeup+0x19/0x160
smp_apic_timer_interrupt+0x6a/0x130
apic_timer_interrupt+0xf/0x20
</IRQ>
Moreover, if the suspend duration of the virtual machine is not long enough
to trigger a hard lockup in this scenario, since commit 98c25ead5eda
("KVM: VMX: Move preemption timer <=> hrtimer dance to common x86"), KVM
will continue using the software timer until the guest reprograms the APIC
timer in some way. Since the periodic timer does not require frequent APIC
timer register programming, the guest may continue to use the software
timer in
---truncated---
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc Version: d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc Version: d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc Version: d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc Version: d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc Version: d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc Version: d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc Version: 421e1fadb0b0a648cc75afd5b3c826fa7daeaffc Version: 5a69b7b69beae9bb86e7e1b095685087976cba47 Version: 4.14.45 ≤ Version: 4.16.13 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer\n\nWhen advancing the target expiration for the guest\u0027s APIC timer in periodic\nmode, set the expiration to \"now\" if the target expiration is in the past\n(similar to what is done in update_target_expiration()). Blindly adding\nthe period to the previous target expiration can result in KVM generating\na practically unbounded number of hrtimer IRQs due to programming an\nexpired timer over and over. In extreme scenarios, e.g. if userspace\npauses/suspends a VM for an extended duration, this can even cause hard\nlockups in the host.\n\nCurrently, the bug only affects Intel CPUs when using the hypervisor timer\n(HV timer), a.k.a. the VMX preemption timer. Unlike the software timer,\na.k.a. hrtimer, which KVM keeps running even on exits to userspace, the\nHV timer only runs while the guest is active. As a result, if the vCPU\ndoes not run for an extended duration, there will be a huge gap between\nthe target expiration and the current time the vCPU resumes running.\nBecause the target expiration is incremented by only one period on each\ntimer expiration, this leads to a series of timer expirations occurring\nrapidly after the vCPU/VM resumes.\n\nMore critically, when the vCPU first triggers a periodic HV timer\nexpiration after resuming, advancing the expiration by only one period\nwill result in a target expiration in the past. As a result, the delta\nmay be calculated as a negative value. When the delta is converted into\nan absolute value (tscdeadline is an unsigned u64), the resulting value\ncan overflow what the HV timer is capable of programming. I.e. the large\nvalue will exceed the VMX Preemption Timer\u0027s maximum bit width of\ncpu_preemption_timer_multi + 32, and thus cause KVM to switch from the\nHV timer to the software timer (hrtimers).\n\nAfter switching to the software timer, periodic timer expiration callbacks\nmay be executed consecutively within a single clock interrupt handler,\nbecause hrtimers honors KVM\u0027s request for an expiration in the past and\nimmediately re-invokes KVM\u0027s callback after reprogramming. And because\nthe interrupt handler runs with IRQs disabled, restarting KVM\u0027s hrtimer\nover and over until the target expiration is advanced to \"now\" can result\nin a hard lockup.\n\nE.g. the following hard lockup was triggered in the host when running a\nWindows VM (only relevant because it used the APIC timer in periodic mode)\nafter resuming the VM from a long suspend (in the host).\n\n NMI watchdog: Watchdog detected hard LOCKUP on cpu 45\n ...\n RIP: 0010:advance_periodic_target_expiration+0x4d/0x80 [kvm]\n ...\n RSP: 0018:ff4f88f5d98d8ef0 EFLAGS: 00000046\n RAX: fff0103f91be678e RBX: fff0103f91be678e RCX: 00843a7d9e127bcc\n RDX: 0000000000000002 RSI: 0052ca4003697505 RDI: ff440d5bfbdbd500\n RBP: ff440d5956f99200 R08: ff2ff2a42deb6a84 R09: 000000000002a6c0\n R10: 0122d794016332b3 R11: 0000000000000000 R12: ff440db1af39cfc0\n R13: ff440db1af39cfc0 R14: ffffffffc0d4a560 R15: ff440db1af39d0f8\n FS: 00007f04a6ffd700(0000) GS:ff440db1af380000(0000) knlGS:000000e38a3b8000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000d5651feff8 CR3: 000000684e038002 CR4: 0000000000773ee0\n PKRU: 55555554\n Call Trace:\n \u003cIRQ\u003e\n apic_timer_fn+0x31/0x50 [kvm]\n __hrtimer_run_queues+0x100/0x280\n hrtimer_interrupt+0x100/0x210\n ? ttwu_do_wakeup+0x19/0x160\n smp_apic_timer_interrupt+0x6a/0x130\n apic_timer_interrupt+0xf/0x20\n \u003c/IRQ\u003e\n\nMoreover, if the suspend duration of the virtual machine is not long enough\nto trigger a hard lockup in this scenario, since commit 98c25ead5eda\n(\"KVM: VMX: Move preemption timer \u003c=\u003e hrtimer dance to common x86\"), KVM\nwill continue using the software timer until the guest reprograms the APIC\ntimer in some way. Since the periodic timer does not require frequent APIC\ntimer register programming, the guest may continue to use the software\ntimer in \n---truncated---"
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CVE-2026-23359 (GCVE-0-2026-23359)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix stack-out-of-bounds write in devmap
get_upper_ifindexes() iterates over all upper devices and writes their
indices into an array without checking bounds.
Also the callers assume that the max number of upper devices is
MAX_NEST_DEV and allocate excluded_devices[1+MAX_NEST_DEV] on the stack,
but that assumption is not correct and the number of upper devices could
be larger than MAX_NEST_DEV (e.g., many macvlans), causing a
stack-out-of-bounds write.
Add a max parameter to get_upper_ifindexes() to avoid the issue.
When there are too many upper devices, return -EOVERFLOW and abort the
redirect.
To reproduce, create more than MAX_NEST_DEV(8) macvlans on a device with
an XDP program attached using BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS.
Then send a packet to the device to trigger the XDP redirect path.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: aeea1b86f9363f3feabb496534d886f082a89f21 Version: aeea1b86f9363f3feabb496534d886f082a89f21 Version: aeea1b86f9363f3feabb496534d886f082a89f21 Version: aeea1b86f9363f3feabb496534d886f082a89f21 Version: aeea1b86f9363f3feabb496534d886f082a89f21 Version: aeea1b86f9363f3feabb496534d886f082a89f21 Version: aeea1b86f9363f3feabb496534d886f082a89f21 |
||
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CVE-2026-23100 (GCVE-0-2026-23100)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb: fix hugetlb_pmd_shared()
Patch series "mm/hugetlb: fixes for PMD table sharing (incl. using
mmu_gather)", v3.
One functional fix, one performance regression fix, and two related
comment fixes.
I cleaned up my prototype I recently shared [1] for the performance fix,
deferring most of the cleanups I had in the prototype to a later point.
While doing that I identified the other things.
The goal of this patch set is to be backported to stable trees "fairly"
easily. At least patch #1 and #4.
Patch #1 fixes hugetlb_pmd_shared() not detecting any sharing
Patch #2 + #3 are simple comment fixes that patch #4 interacts with.
Patch #4 is a fix for the reported performance regression due to excessive
IPI broadcasts during fork()+exit().
The last patch is all about TLB flushes, IPIs and mmu_gather.
Read: complicated
There are plenty of cleanups in the future to be had + one reasonable
optimization on x86. But that's all out of scope for this series.
Runtime tested, with a focus on fixing the performance regression using
the original reproducer [2] on x86.
This patch (of 4):
We switched from (wrongly) using the page count to an independent shared
count. Now, shared page tables have a refcount of 1 (excluding
speculative references) and instead use ptdesc->pt_share_count to identify
sharing.
We didn't convert hugetlb_pmd_shared(), so right now, we would never
detect a shared PMD table as such, because sharing/unsharing no longer
touches the refcount of a PMD table.
Page migration, like mbind() or migrate_pages() would allow for migrating
folios mapped into such shared PMD tables, even though the folios are not
exclusive. In smaps we would account them as "private" although they are
"shared", and we would be wrongly setting the PM_MMAP_EXCLUSIVE in the
pagemap interface.
Fix it by properly using ptdesc_pmd_is_shared() in hugetlb_pmd_shared().
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 94b4b41d0cdf5cfd4d4325bc0e6e9e0d0e996133 Version: 8410996eb6fea116fe1483ed977aacf580eee7b4 Version: 02333ac1c35370517a19a4a131332a9690c6a5c7 Version: 56b274473d6e7e7375f2d0a2b4aca11d67c6b52f Version: 2e31443a0d18ae43b9d29e02bf0563f07772193d Version: 59d9094df3d79443937add8700b2ef1a866b1081 Version: 59d9094df3d79443937add8700b2ef1a866b1081 Version: 5.10.239 ≤ Version: 5.15.186 ≤ Version: 6.1.142 ≤ Version: 6.6.72 ≤ Version: 6.12.9 ≤ |
||
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CVE-2025-71064 (GCVE-0-2025-71064)
Vulnerability from cvelistv5
Published
2026-01-13 15:31
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: using the num_tqps in the vf driver to apply for resources
Currently, hdev->htqp is allocated using hdev->num_tqps, and kinfo->tqp
is allocated using kinfo->num_tqps. However, kinfo->num_tqps is set to
min(new_tqps, hdev->num_tqps); Therefore, kinfo->num_tqps may be smaller
than hdev->num_tqps, which causes some hdev->htqp[i] to remain
uninitialized in hclgevf_knic_setup().
Thus, this patch allocates hdev->htqp and kinfo->tqp using hdev->num_tqps,
ensuring that the lengths of hdev->htqp and kinfo->tqp are consistent
and that all elements are properly initialized.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e2cb1dec9779ba2d89302a653eb0abaeb8682196 Version: e2cb1dec9779ba2d89302a653eb0abaeb8682196 Version: e2cb1dec9779ba2d89302a653eb0abaeb8682196 Version: e2cb1dec9779ba2d89302a653eb0abaeb8682196 Version: e2cb1dec9779ba2d89302a653eb0abaeb8682196 Version: e2cb1dec9779ba2d89302a653eb0abaeb8682196 Version: e2cb1dec9779ba2d89302a653eb0abaeb8682196 |
||
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CVE-2024-53170 (GCVE-0-2024-53170)
Vulnerability from cvelistv5
Published
2024-12-27 13:49
Modified
2026-08-05 11:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
block: fix uaf for flush rq while iterating tags
blk_mq_clear_flush_rq_mapping() is not called during scsi probe, by
checking blk_queue_init_done(). However, QUEUE_FLAG_INIT_DONE is cleared
in del_gendisk by commit aec89dc5d421 ("block: keep q_usage_counter in
atomic mode after del_gendisk"), hence for disk like scsi, following
blk_mq_destroy_queue() will not clear flush rq from tags->rqs[] as well,
cause following uaf that is found by our syzkaller for v6.6:
==================================================================
BUG: KASAN: slab-use-after-free in blk_mq_find_and_get_req+0x16e/0x1a0 block/blk-mq-tag.c:261
Read of size 4 at addr ffff88811c969c20 by task kworker/1:2H/224909
CPU: 1 PID: 224909 Comm: kworker/1:2H Not tainted 6.6.0-ga836a5060850 #32
Workqueue: kblockd blk_mq_timeout_work
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x91/0xf0 lib/dump_stack.c:106
print_address_description.constprop.0+0x66/0x300 mm/kasan/report.c:364
print_report+0x3e/0x70 mm/kasan/report.c:475
kasan_report+0xb8/0xf0 mm/kasan/report.c:588
blk_mq_find_and_get_req+0x16e/0x1a0 block/blk-mq-tag.c:261
bt_iter block/blk-mq-tag.c:288 [inline]
__sbitmap_for_each_set include/linux/sbitmap.h:295 [inline]
sbitmap_for_each_set include/linux/sbitmap.h:316 [inline]
bt_for_each+0x455/0x790 block/blk-mq-tag.c:325
blk_mq_queue_tag_busy_iter+0x320/0x740 block/blk-mq-tag.c:534
blk_mq_timeout_work+0x1a3/0x7b0 block/blk-mq.c:1673
process_one_work+0x7c4/0x1450 kernel/workqueue.c:2631
process_scheduled_works kernel/workqueue.c:2704 [inline]
worker_thread+0x804/0xe40 kernel/workqueue.c:2785
kthread+0x346/0x450 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:293
Allocated by task 942:
kasan_save_stack+0x22/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc mm/kasan/common.c:383 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:380
kasan_kmalloc include/linux/kasan.h:198 [inline]
__do_kmalloc_node mm/slab_common.c:1007 [inline]
__kmalloc_node+0x69/0x170 mm/slab_common.c:1014
kmalloc_node include/linux/slab.h:620 [inline]
kzalloc_node include/linux/slab.h:732 [inline]
blk_alloc_flush_queue+0x144/0x2f0 block/blk-flush.c:499
blk_mq_alloc_hctx+0x601/0x940 block/blk-mq.c:3788
blk_mq_alloc_and_init_hctx+0x27f/0x330 block/blk-mq.c:4261
blk_mq_realloc_hw_ctxs+0x488/0x5e0 block/blk-mq.c:4294
blk_mq_init_allocated_queue+0x188/0x860 block/blk-mq.c:4350
blk_mq_init_queue_data block/blk-mq.c:4166 [inline]
blk_mq_init_queue+0x8d/0x100 block/blk-mq.c:4176
scsi_alloc_sdev+0x843/0xd50 drivers/scsi/scsi_scan.c:335
scsi_probe_and_add_lun+0x77c/0xde0 drivers/scsi/scsi_scan.c:1189
__scsi_scan_target+0x1fc/0x5a0 drivers/scsi/scsi_scan.c:1727
scsi_scan_channel drivers/scsi/scsi_scan.c:1815 [inline]
scsi_scan_channel+0x14b/0x1e0 drivers/scsi/scsi_scan.c:1791
scsi_scan_host_selected+0x2fe/0x400 drivers/scsi/scsi_scan.c:1844
scsi_scan+0x3a0/0x3f0 drivers/scsi/scsi_sysfs.c:151
store_scan+0x2a/0x60 drivers/scsi/scsi_sysfs.c:191
dev_attr_store+0x5c/0x90 drivers/base/core.c:2388
sysfs_kf_write+0x11c/0x170 fs/sysfs/file.c:136
kernfs_fop_write_iter+0x3fc/0x610 fs/kernfs/file.c:338
call_write_iter include/linux/fs.h:2083 [inline]
new_sync_write+0x1b4/0x2d0 fs/read_write.c:493
vfs_write+0x76c/0xb00 fs/read_write.c:586
ksys_write+0x127/0x250 fs/read_write.c:639
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x70/0x120 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x78/0xe2
Freed by task 244687:
kasan_save_stack+0x22/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x50 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
__kasan_slab_free+0x12a/0x1b0 mm/kasan/common.c:244
kasan_slab_free include/linux/kasan.h:164 [in
---truncated---
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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"value": "AV:L - The vulnerability is in the block layer\u0027s blk-mq tag iteration and is reached through local block device I/O (flush/fsync on a SCSI-backed device) plus device teardown; there is no remote protocol handler involved. Exploitation requires local access to drive I/O and groom the kernel heap on the affected host.\nAC:L - The dangling flush_rq pointer is left in the host-wide tags-\u003erqs[] deterministically after any SCSI LUN teardown, and the attacker can drive both sides of the consuming window by keeping heavy I/O on the remaining LUNs of the same SCSI host (forcing timeout/EH tag iteration) while spraying the freed kmalloc slab. No condition depends on state the attacker cannot influence.\nPR:L - An unprivileged local user can supply every attacker-controlled element \u2014 issuing flushes via fsync on a mounted SCSI disk to plant flush_rq in the shared tag array, driving I/O that forces tag iteration, and spraying the generic kmalloc cache to reclaim the freed request; the teardown itself is a routine event (USB/SAN/virtio-scsi hotplug, path loss) rather than an attacker-only capability.\nUI:N - No victim action such as opening a file or mounting a filesystem is required; the use-after-free fires from kernel worker context (blk_mq_timeout_work, SCSI error handling) as ordinary I/O proceeds.\nS:U - The corrupted memory and the impact both reside in the kernel\u0027s own security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed struct request lives in a generic kmalloc cache that an unprivileged attacker can reclaim with controlled data, and the tag iterator reads fields (rq-\u003etag, rq-\u003eq, rq-\u003emq_hctx, rq-\u003estate) from it, allowing the attacker to steer subsequent dereferences into arbitrary kernel memory and disclose its contents.\nI:H - Beyond reading, req_ref_inc_not_zero() performs an atomic increment into the freed object, and blk_mq_put_rq_ref() can invoke flush_end_io() on it, which walks fq-\u003eflush_queue lists and calls completion callbacks derived from attacker-groomable memory \u2014 a write and control-flow hijack primitive.\nA:H - The use-after-free reliably produces a KASAN slab-use-after-free/oops in blk_mq_find_and_get_req() from the kblockd worker, and unconstrained follow-on dereferences of the freed request cause kernel panics, taking down the storage stack and the system."
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CVE-2025-40300 (GCVE-0-2025-40300)
Vulnerability from cvelistv5
Published
2025-09-11 16:49
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/vmscape: Add conditional IBPB mitigation
VMSCAPE is a vulnerability that exploits insufficient branch predictor
isolation between a guest and a userspace hypervisor (like QEMU). Existing
mitigations already protect kernel/KVM from a malicious guest. Userspace
can additionally be protected by flushing the branch predictors after a
VMexit.
Since it is the userspace that consumes the poisoned branch predictors,
conditionally issue an IBPB after a VMexit and before returning to
userspace. Workloads that frequently switch between hypervisor and
userspace will incur the most overhead from the new IBPB.
This new IBPB is not integrated with the existing IBPB sites. For
instance, a task can use the existing speculation control prctl() to
get an IBPB at context switch time. With this implementation, the
IBPB is doubled up: one at context switch and another before running
userspace.
The intent is to integrate and optimize these cases post-embargo.
[ dhansen: elaborate on suboptimal IBPB solution ]
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: 15d45071523d89b3fb7372e2135fbd72f6af9506 Version: c51f1e5f57cca88d8d5894b6fad1638f643a99d0 Version: 4b3870c343a82cd2df7192cc5149c87205dcc611 Version: 3.16.57 ≤ Version: 4.4.168 ≤ |
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CVE-2026-23271 (GCVE-0-2026-23271)
Vulnerability from cvelistv5
Published
2026-03-20 08:08
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
perf: Fix __perf_event_overflow() vs perf_remove_from_context() race
Make sure that __perf_event_overflow() runs with IRQs disabled for all
possible callchains. Specifically the software events can end up running
it with only preemption disabled.
This opens up a race vs perf_event_exit_event() and friends that will go
and free various things the overflow path expects to be present, like
the BPF program.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 592903cdcbf606a838056bae6d03fc557806c914 Version: 592903cdcbf606a838056bae6d03fc557806c914 Version: 592903cdcbf606a838056bae6d03fc557806c914 Version: 592903cdcbf606a838056bae6d03fc557806c914 Version: 592903cdcbf606a838056bae6d03fc557806c914 Version: 592903cdcbf606a838056bae6d03fc557806c914 |
||
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CVE-2025-71163 (GCVE-0-2025-71163)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: fix device leaks on compat bind and unbind
Make sure to drop the reference taken when looking up the idxd device as
part of the compat bind and unbind sysfs interface.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9 Version: 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9 Version: 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9 Version: 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9 Version: 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9 Version: 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9 |
||
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CVE-2025-68265 (GCVE-0-2025-68265)
Vulnerability from cvelistv5
Published
2025-12-16 14:47
Modified
2026-08-05 12:10
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvme: fix admin request_queue lifetime
The namespaces can access the controller's admin request_queue, and
stale references on the namespaces may exist after tearing down the
controller. Ensure the admin request_queue is active by moving the
controller's 'put' to after all controller references have been released
to ensure no one is can access the request_queue. This fixes a reported
use-after-free bug:
BUG: KASAN: slab-use-after-free in blk_queue_enter+0x41c/0x4a0
Read of size 8 at addr ffff88c0a53819f8 by task nvme/3287
CPU: 67 UID: 0 PID: 3287 Comm: nvme Tainted: G E 6.13.2-ga1582f1a031e #15
Tainted: [E]=UNSIGNED_MODULE
Hardware name: Jabil /EGS 2S MB1, BIOS 1.00 06/18/2025
Call Trace:
<TASK>
dump_stack_lvl+0x4f/0x60
print_report+0xc4/0x620
? _raw_spin_lock_irqsave+0x70/0xb0
? _raw_read_unlock_irqrestore+0x30/0x30
? blk_queue_enter+0x41c/0x4a0
kasan_report+0xab/0xe0
? blk_queue_enter+0x41c/0x4a0
blk_queue_enter+0x41c/0x4a0
? __irq_work_queue_local+0x75/0x1d0
? blk_queue_start_drain+0x70/0x70
? irq_work_queue+0x18/0x20
? vprintk_emit.part.0+0x1cc/0x350
? wake_up_klogd_work_func+0x60/0x60
blk_mq_alloc_request+0x2b7/0x6b0
? __blk_mq_alloc_requests+0x1060/0x1060
? __switch_to+0x5b7/0x1060
nvme_submit_user_cmd+0xa9/0x330
nvme_user_cmd.isra.0+0x240/0x3f0
? force_sigsegv+0xe0/0xe0
? nvme_user_cmd64+0x400/0x400
? vfs_fileattr_set+0x9b0/0x9b0
? cgroup_update_frozen_flag+0x24/0x1c0
? cgroup_leave_frozen+0x204/0x330
? nvme_ioctl+0x7c/0x2c0
blkdev_ioctl+0x1a8/0x4d0
? blkdev_common_ioctl+0x1930/0x1930
? fdget+0x54/0x380
__x64_sys_ioctl+0x129/0x190
do_syscall_64+0x5b/0x160
entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x7f765f703b0b
Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d dd 52 0f 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe2cefe808 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe2cefe860 RCX: 00007f765f703b0b
RDX: 00007ffe2cefe860 RSI: 00000000c0484e41 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000
R10: 00007f765f611d50 R11: 0000000000000202 R12: 0000000000000003
R13: 00000000c0484e41 R14: 0000000000000001 R15: 00007ffe2cefea60
</TASK>
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: fix admin request_queue lifetime\n\nThe namespaces can access the controller\u0027s admin request_queue, and\nstale references on the namespaces may exist after tearing down the\ncontroller. Ensure the admin request_queue is active by moving the\ncontroller\u0027s \u0027put\u0027 to after all controller references have been released\nto ensure no one is can access the request_queue. This fixes a reported\nuse-after-free bug:\n\n BUG: KASAN: slab-use-after-free in blk_queue_enter+0x41c/0x4a0\n Read of size 8 at addr ffff88c0a53819f8 by task nvme/3287\n CPU: 67 UID: 0 PID: 3287 Comm: nvme Tainted: G E 6.13.2-ga1582f1a031e #15\n Tainted: [E]=UNSIGNED_MODULE\n Hardware name: Jabil /EGS 2S MB1, BIOS 1.00 06/18/2025\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x4f/0x60\n print_report+0xc4/0x620\n ? _raw_spin_lock_irqsave+0x70/0xb0\n ? _raw_read_unlock_irqrestore+0x30/0x30\n ? blk_queue_enter+0x41c/0x4a0\n kasan_report+0xab/0xe0\n ? blk_queue_enter+0x41c/0x4a0\n blk_queue_enter+0x41c/0x4a0\n ? __irq_work_queue_local+0x75/0x1d0\n ? blk_queue_start_drain+0x70/0x70\n ? irq_work_queue+0x18/0x20\n ? vprintk_emit.part.0+0x1cc/0x350\n ? wake_up_klogd_work_func+0x60/0x60\n blk_mq_alloc_request+0x2b7/0x6b0\n ? __blk_mq_alloc_requests+0x1060/0x1060\n ? __switch_to+0x5b7/0x1060\n nvme_submit_user_cmd+0xa9/0x330\n nvme_user_cmd.isra.0+0x240/0x3f0\n ? force_sigsegv+0xe0/0xe0\n ? nvme_user_cmd64+0x400/0x400\n ? vfs_fileattr_set+0x9b0/0x9b0\n ? cgroup_update_frozen_flag+0x24/0x1c0\n ? cgroup_leave_frozen+0x204/0x330\n ? nvme_ioctl+0x7c/0x2c0\n blkdev_ioctl+0x1a8/0x4d0\n ? blkdev_common_ioctl+0x1930/0x1930\n ? fdget+0x54/0x380\n __x64_sys_ioctl+0x129/0x190\n do_syscall_64+0x5b/0x160\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n RIP: 0033:0x7f765f703b0b\n Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d dd 52 0f 00 f7 d8 64 89 01 48\n RSP: 002b:00007ffe2cefe808 EFLAGS: 00000202 ORIG_RAX: 0000000000000010\n RAX: ffffffffffffffda RBX: 00007ffe2cefe860 RCX: 00007f765f703b0b\n RDX: 00007ffe2cefe860 RSI: 00000000c0484e41 RDI: 0000000000000003\n RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000\n R10: 00007f765f611d50 R11: 0000000000000202 R12: 0000000000000003\n R13: 00000000c0484e41 R14: 0000000000000001 R15: 00007ffe2cefea60\n \u003c/TASK\u003e"
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"value": "AV:L - Exploitation requires issuing an NVMe admin ioctl through a retained local namespace or controller file descriptor. A remote NVMe-oF peer can induce teardown, but cannot independently perform the stale-FD ioctl.\nAC:L - The attacker can retain the file descriptor across controller teardown and trigger the UAF afterward, so no narrow race must be won. Teardown can also be induced predictably in NVMe/TCP deployments through controlled connection failure.\nPR:L - A basic local user with access to the NVMe device can use an Identify admin command, which nvme_cmd_allowed() permits without CAP_SYS_ADMIN. User-namespace capabilities are therefore unnecessary.\nUI:N - No victim action is required once the attacker has opened the device; controller teardown may occur automatically or be attacker-influenced.\nS:U - The UAF compromises the same host kernel security authority containing the vulnerable NVMe and block-layer code. It does not inherently cross a VM, IOMMU, or equivalent boundary.\nC:H - The stale request_queue can be reclaimed and reused, allowing subsequent queue and request processing to access attacker-influenced freed-object contents. As a kernel UAF, this can plausibly provide information-disclosure primitives.\nI:H - Queue entry increments a refcount through the stale object, and successful reuse can drive request initialization through an unrelated queue and corrupt kernel memory. This is plausibly exploitable for arbitrary modification or control-flow hijacking.\nA:H - The reported UAF occurs in blk_queue_enter() and can cause an oops, panic, hang, or broader memory corruption. The retained stale descriptor permits repeated triggering."
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CVE-2025-37980 (GCVE-0-2025-37980)
Vulnerability from cvelistv5
Published
2025-05-20 16:58
Modified
2026-07-14 12:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
block: fix resource leak in blk_register_queue() error path
When registering a queue fails after blk_mq_sysfs_register() is
successful but the function later encounters an error, we need
to clean up the blk_mq_sysfs resources.
Add the missing blk_mq_sysfs_unregister() call in the error path
to properly clean up these resources and prevent a memory leak.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-43030 (GCVE-0-2026-43030)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-08-05 12:25
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix regsafe() for pointers to packet
In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N
regsafe() may return true which may lead to current state with
valid packet range not being explored. Fix the bug.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-21796 (GCVE-0-2025-21796)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfsd: clear acl_access/acl_default after releasing them
If getting acl_default fails, acl_access and acl_default will be released
simultaneously. However, acl_access will still retain a pointer pointing
to the released posix_acl, which will trigger a WARNING in
nfs3svc_release_getacl like this:
------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 26 PID: 3199 at lib/refcount.c:28
refcount_warn_saturate+0xb5/0x170
Modules linked in:
CPU: 26 UID: 0 PID: 3199 Comm: nfsd Not tainted
6.12.0-rc6-00079-g04ae226af01f-dirty #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.16.1-2.fc37 04/01/2014
RIP: 0010:refcount_warn_saturate+0xb5/0x170
Code: cc cc 0f b6 1d b3 20 a5 03 80 fb 01 0f 87 65 48 d8 00 83 e3 01 75
e4 48 c7 c7 c0 3b 9b 85 c6 05 97 20 a5 03 01 e8 fb 3e 30 ff <0f> 0b eb
cd 0f b6 1d 8a3
RSP: 0018:ffffc90008637cd8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83904fde
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88871ed36380
RBP: ffff888158beeb40 R08: 0000000000000001 R09: fffff520010c6f56
R10: ffffc90008637ab7 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888140e77400 R14: ffff888140e77408 R15: ffffffff858b42c0
FS: 0000000000000000(0000) GS:ffff88871ed00000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562384d32158 CR3: 000000055cc6a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? refcount_warn_saturate+0xb5/0x170
? __warn+0xa5/0x140
? refcount_warn_saturate+0xb5/0x170
? report_bug+0x1b1/0x1e0
? handle_bug+0x53/0xa0
? exc_invalid_op+0x17/0x40
? asm_exc_invalid_op+0x1a/0x20
? tick_nohz_tick_stopped+0x1e/0x40
? refcount_warn_saturate+0xb5/0x170
? refcount_warn_saturate+0xb5/0x170
nfs3svc_release_getacl+0xc9/0xe0
svc_process_common+0x5db/0xb60
? __pfx_svc_process_common+0x10/0x10
? __rcu_read_unlock+0x69/0xa0
? __pfx_nfsd_dispatch+0x10/0x10
? svc_xprt_received+0xa1/0x120
? xdr_init_decode+0x11d/0x190
svc_process+0x2a7/0x330
svc_handle_xprt+0x69d/0x940
svc_recv+0x180/0x2d0
nfsd+0x168/0x200
? __pfx_nfsd+0x10/0x10
kthread+0x1a2/0x1e0
? kthread+0xf4/0x1e0
? __pfx_kthread+0x10/0x10
ret_from_fork+0x34/0x60
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
Kernel panic - not syncing: kernel: panic_on_warn set ...
Clear acl_access/acl_default after posix_acl_release is called to prevent
UAF from being triggered.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 Version: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 Version: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 Version: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 Version: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 Version: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 Version: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 |
||
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"vulnerable": true
},
{
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"versionEndExcluding": "6.14",
"versionStartIncluding": "2.6.13",
"vulnerable": true
}
],
"negate": false,
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: clear acl_access/acl_default after releasing them\n\nIf getting acl_default fails, acl_access and acl_default will be released\nsimultaneously. However, acl_access will still retain a pointer pointing\nto the released posix_acl, which will trigger a WARNING in\nnfs3svc_release_getacl like this:\n\n------------[ cut here ]------------\nrefcount_t: underflow; use-after-free.\nWARNING: CPU: 26 PID: 3199 at lib/refcount.c:28\nrefcount_warn_saturate+0xb5/0x170\nModules linked in:\nCPU: 26 UID: 0 PID: 3199 Comm: nfsd Not tainted\n6.12.0-rc6-00079-g04ae226af01f-dirty #8\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.16.1-2.fc37 04/01/2014\nRIP: 0010:refcount_warn_saturate+0xb5/0x170\nCode: cc cc 0f b6 1d b3 20 a5 03 80 fb 01 0f 87 65 48 d8 00 83 e3 01 75\ne4 48 c7 c7 c0 3b 9b 85 c6 05 97 20 a5 03 01 e8 fb 3e 30 ff \u003c0f\u003e 0b eb\ncd 0f b6 1d 8a3\nRSP: 0018:ffffc90008637cd8 EFLAGS: 00010282\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83904fde\nRDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88871ed36380\nRBP: ffff888158beeb40 R08: 0000000000000001 R09: fffff520010c6f56\nR10: ffffc90008637ab7 R11: 0000000000000001 R12: 0000000000000001\nR13: ffff888140e77400 R14: ffff888140e77408 R15: ffffffff858b42c0\nFS: 0000000000000000(0000) GS:ffff88871ed00000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000562384d32158 CR3: 000000055cc6a000 CR4: 00000000000006f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n ? refcount_warn_saturate+0xb5/0x170\n ? __warn+0xa5/0x140\n ? refcount_warn_saturate+0xb5/0x170\n ? report_bug+0x1b1/0x1e0\n ? handle_bug+0x53/0xa0\n ? exc_invalid_op+0x17/0x40\n ? asm_exc_invalid_op+0x1a/0x20\n ? tick_nohz_tick_stopped+0x1e/0x40\n ? refcount_warn_saturate+0xb5/0x170\n ? refcount_warn_saturate+0xb5/0x170\n nfs3svc_release_getacl+0xc9/0xe0\n svc_process_common+0x5db/0xb60\n ? __pfx_svc_process_common+0x10/0x10\n ? __rcu_read_unlock+0x69/0xa0\n ? __pfx_nfsd_dispatch+0x10/0x10\n ? svc_xprt_received+0xa1/0x120\n ? xdr_init_decode+0x11d/0x190\n svc_process+0x2a7/0x330\n svc_handle_xprt+0x69d/0x940\n svc_recv+0x180/0x2d0\n nfsd+0x168/0x200\n ? __pfx_nfsd+0x10/0x10\n kthread+0x1a2/0x1e0\n ? kthread+0xf4/0x1e0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x34/0x60\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\nKernel panic - not syncing: kernel: panic_on_warn set ...\n\nClear acl_access/acl_default after posix_acl_release is called to prevent\nUAF from being triggered."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable functions are the NFSACL sideband RPC handlers (program 100227, ACLPROC2/3_GETACL) served by the in-kernel nfsd on port 2049; a remote NFS client reaches them purely by sending a GETACL call with a filehandle and a mask.\nAC:L - The attacker fully controls the mask field that selects both the access and default ACL branches, and can retry indefinitely; the error condition is deterministic on FUSE-backed exports and on any file with a malformed/corrupt system.posix_acl_default xattr, and is otherwise reachable via the unlocked -ERANGE window in ext4_get_acl that the attacker drives from both sides with concurrent SETACL/GETACL.\nPR:N - NFS AUTH_SYS performs no real authentication \u2014 the client merely asserts a uid \u2014 and fh_verify() is called with NFSD_MAY_NOP, so nfsd_permission() returns 0 without any file ownership or mode check; any host permitted by the export list can issue GETACL against any object in the export.\nUI:N - The entire sequence is driven by attacker-sent RPC calls handled by the nfsd kernel threads; no action by a local user or administrator is required.\nS:U - The freed posix_acl, the dangling inode-\u003ei_acl, and the resulting corruption all reside in the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - In the NFSv2-ACL encoder the released posix_acl is still passed to nfs_stream_encode_acl(), which reads a_count and up to 1024 a_entries[] from the freed slab object and transmits them to the remote client, yielding freed-heap disclosure plus a large out-of-bounds read; the cached-ACL variant additionally leaves inode-\u003ei_acl dangling for later reads.\nI:H - The second posix_acl_release() performs an atomic decrement into freed (potentially reallocated) slab memory, and in the cached case the dangling inode-\u003ei_acl leads to refcount_inc on freed memory, a genuine double free on the next set/forget_cached_acl, and posix_acl_permission() making file access-control decisions from attacker-groomable freed heap contents.\nA:H - The bug reproduces as a refcount_t underflow WARN in nfs3svc_release_getacl (kernel panic with panic_on_warn, as shown in the commit\u0027s own report), and the use-after-free of a slab object causes further corruption and oopses; it is remotely and repeatedly triggerable."
}
]
}
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CVE-2026-23054 (GCVE-0-2026-23054)
Vulnerability from cvelistv5
Published
2026-02-04 16:04
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: hv_netvsc: reject RSS hash key programming without RX indirection table
RSS configuration requires a valid RX indirection table. When the device
reports a single receive queue, rndis_filter_device_add() does not
allocate an indirection table, accepting RSS hash key updates in this
state leads to a hang.
Fix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return
-EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device
capabilities and prevents incorrect behavior.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
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"programFiles": [
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],
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"vendor": "Linux",
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"versions": [
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{
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"versionType": "original_commit_for_fix"
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}
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CVE-2026-31450 (GCVE-0-2026-31450)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: publish jinode after initialization
ext4_inode_attach_jinode() publishes ei->jinode to concurrent users.
It used to set ei->jinode before jbd2_journal_init_jbd_inode(),
allowing a reader to observe a non-NULL jinode with i_vfs_inode
still unset.
The fast commit flush path can then pass this jinode to
jbd2_wait_inode_data(), which dereferences i_vfs_inode->i_mapping and
may crash.
Below is the crash I observe:
```
BUG: unable to handle page fault for address: 000000010beb47f4
PGD 110e51067 P4D 110e51067 PUD 0
Oops: Oops: 0000 [#1] SMP NOPTI
CPU: 1 UID: 0 PID: 4850 Comm: fc_fsync_bench_ Not tainted 6.18.0-00764-g795a690c06a5 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.17.0-2-2 04/01/2014
RIP: 0010:xas_find_marked+0x3d/0x2e0
Code: e0 03 48 83 f8 02 0f 84 f0 01 00 00 48 8b 47 08 48 89 c3 48 39 c6 0f 82 fd 01 00 00 48 85 c9 74 3d 48 83 f9 03 77 63 4c 8b 0f <49> 8b 71 08 48 c7 47 18 00 00 00 00 48 89 f1 83 e1 03 48 83 f9 02
RSP: 0018:ffffbbee806e7bf0 EFLAGS: 00010246
RAX: 000000000010beb4 RBX: 000000000010beb4 RCX: 0000000000000003
RDX: 0000000000000001 RSI: 0000002000300000 RDI: ffffbbee806e7c10
RBP: 0000000000000001 R08: 0000002000300000 R09: 000000010beb47ec
R10: ffff9ea494590090 R11: 0000000000000000 R12: 0000002000300000
R13: ffffbbee806e7c90 R14: ffff9ea494513788 R15: ffffbbee806e7c88
FS: 00007fc2f9e3e6c0(0000) GS:ffff9ea6b1444000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000010beb47f4 CR3: 0000000119ac5000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
<TASK>
filemap_get_folios_tag+0x87/0x2a0
__filemap_fdatawait_range+0x5f/0xd0
? srso_alias_return_thunk+0x5/0xfbef5
? __schedule+0x3e7/0x10c0
? srso_alias_return_thunk+0x5/0xfbef5
? srso_alias_return_thunk+0x5/0xfbef5
? srso_alias_return_thunk+0x5/0xfbef5
? preempt_count_sub+0x5f/0x80
? srso_alias_return_thunk+0x5/0xfbef5
? cap_safe_nice+0x37/0x70
? srso_alias_return_thunk+0x5/0xfbef5
? preempt_count_sub+0x5f/0x80
? srso_alias_return_thunk+0x5/0xfbef5
filemap_fdatawait_range_keep_errors+0x12/0x40
ext4_fc_commit+0x697/0x8b0
? ext4_file_write_iter+0x64b/0x950
? srso_alias_return_thunk+0x5/0xfbef5
? preempt_count_sub+0x5f/0x80
? srso_alias_return_thunk+0x5/0xfbef5
? vfs_write+0x356/0x480
? srso_alias_return_thunk+0x5/0xfbef5
? preempt_count_sub+0x5f/0x80
ext4_sync_file+0xf7/0x370
do_fsync+0x3b/0x80
? syscall_trace_enter+0x108/0x1d0
__x64_sys_fdatasync+0x16/0x20
do_syscall_64+0x62/0x2c0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
...
```
Fix this by initializing the jbd2_inode first.
Use smp_wmb() and WRITE_ONCE() to publish ei->jinode after
initialization. Readers use READ_ONCE() to fetch the pointer.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a361293f5fedea0016a10599f409631a15d47ee7 Version: a361293f5fedea0016a10599f409631a15d47ee7 Version: a361293f5fedea0016a10599f409631a15d47ee7 Version: a361293f5fedea0016a10599f409631a15d47ee7 Version: a361293f5fedea0016a10599f409631a15d47ee7 Version: a361293f5fedea0016a10599f409631a15d47ee7 Version: a361293f5fedea0016a10599f409631a15d47ee7 Version: a361293f5fedea0016a10599f409631a15d47ee7 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: publish jinode after initialization\n\next4_inode_attach_jinode() publishes ei-\u003ejinode to concurrent users.\nIt used to set ei-\u003ejinode before jbd2_journal_init_jbd_inode(),\nallowing a reader to observe a non-NULL jinode with i_vfs_inode\nstill unset.\n\nThe fast commit flush path can then pass this jinode to\njbd2_wait_inode_data(), which dereferences i_vfs_inode-\u003ei_mapping and\nmay crash.\n\nBelow is the crash I observe:\n```\nBUG: unable to handle page fault for address: 000000010beb47f4\nPGD 110e51067 P4D 110e51067 PUD 0\nOops: Oops: 0000 [#1] SMP NOPTI\nCPU: 1 UID: 0 PID: 4850 Comm: fc_fsync_bench_ Not tainted 6.18.0-00764-g795a690c06a5 #1 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.17.0-2-2 04/01/2014\nRIP: 0010:xas_find_marked+0x3d/0x2e0\nCode: e0 03 48 83 f8 02 0f 84 f0 01 00 00 48 8b 47 08 48 89 c3 48 39 c6 0f 82 fd 01 00 00 48 85 c9 74 3d 48 83 f9 03 77 63 4c 8b 0f \u003c49\u003e 8b 71 08 48 c7 47 18 00 00 00 00 48 89 f1 83 e1 03 48 83 f9 02\nRSP: 0018:ffffbbee806e7bf0 EFLAGS: 00010246\nRAX: 000000000010beb4 RBX: 000000000010beb4 RCX: 0000000000000003\nRDX: 0000000000000001 RSI: 0000002000300000 RDI: ffffbbee806e7c10\nRBP: 0000000000000001 R08: 0000002000300000 R09: 000000010beb47ec\nR10: ffff9ea494590090 R11: 0000000000000000 R12: 0000002000300000\nR13: ffffbbee806e7c90 R14: ffff9ea494513788 R15: ffffbbee806e7c88\nFS: 00007fc2f9e3e6c0(0000) GS:ffff9ea6b1444000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000000010beb47f4 CR3: 0000000119ac5000 CR4: 0000000000750ef0\nPKRU: 55555554\nCall Trace:\n\u003cTASK\u003e\nfilemap_get_folios_tag+0x87/0x2a0\n__filemap_fdatawait_range+0x5f/0xd0\n? srso_alias_return_thunk+0x5/0xfbef5\n? __schedule+0x3e7/0x10c0\n? srso_alias_return_thunk+0x5/0xfbef5\n? srso_alias_return_thunk+0x5/0xfbef5\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\n? srso_alias_return_thunk+0x5/0xfbef5\n? cap_safe_nice+0x37/0x70\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\n? srso_alias_return_thunk+0x5/0xfbef5\nfilemap_fdatawait_range_keep_errors+0x12/0x40\next4_fc_commit+0x697/0x8b0\n? ext4_file_write_iter+0x64b/0x950\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\n? srso_alias_return_thunk+0x5/0xfbef5\n? vfs_write+0x356/0x480\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\next4_sync_file+0xf7/0x370\ndo_fsync+0x3b/0x80\n? syscall_trace_enter+0x108/0x1d0\n__x64_sys_fdatasync+0x16/0x20\ndo_syscall_64+0x62/0x2c0\nentry_SYSCALL_64_after_hwframe+0x76/0x7e\n...\n```\n\nFix this by initializing the jbd2_inode first.\nUse smp_wmb() and WRITE_ONCE() to publish ei-\u003ejinode after\ninitialization. Readers use READ_ONCE() to fetch the pointer."
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CVE-2026-23293 (GCVE-0-2026-23293)
Vulnerability from cvelistv5
Published
2026-03-25 10:26
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled
When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never
initialized because inet6_init() exits before ndisc_init() is called
which initializes it. If an IPv6 packet is injected into the interface,
route_shortcircuit() is called and a NULL pointer dereference happens on
neigh_lookup().
BUG: kernel NULL pointer dereference, address: 0000000000000380
Oops: Oops: 0000 [#1] SMP NOPTI
[...]
RIP: 0010:neigh_lookup+0x20/0x270
[...]
Call Trace:
<TASK>
vxlan_xmit+0x638/0x1ef0 [vxlan]
dev_hard_start_xmit+0x9e/0x2e0
__dev_queue_xmit+0xbee/0x14e0
packet_sendmsg+0x116f/0x1930
__sys_sendto+0x1f5/0x200
__x64_sys_sendto+0x24/0x30
do_syscall_64+0x12f/0x1590
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Fix this by adding an early check on route_shortcircuit() when protocol
is ETH_P_IPV6. Note that ipv6_mod_enabled() cannot be used here because
VXLAN can be built-in even when IPv6 is built as a module.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 Version: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 |
||
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CVE-2024-56719 (GCVE-0-2024-56719)
Vulnerability from cvelistv5
Published
2024-12-29 08:48
Modified
2026-08-05 11:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: fix TSO DMA API usage causing oops
Commit 66600fac7a98 ("net: stmmac: TSO: Fix unbalanced DMA map/unmap
for non-paged SKB data") moved the assignment of tx_skbuff_dma[]'s
members to be later in stmmac_tso_xmit().
The buf (dma cookie) and len stored in this structure are passed to
dma_unmap_single() by stmmac_tx_clean(). The DMA API requires that
the dma cookie passed to dma_unmap_single() is the same as the value
returned from dma_map_single(). However, by moving the assignment
later, this is not the case when priv->dma_cap.addr64 > 32 as "des"
is offset by proto_hdr_len.
This causes problems such as:
dwc-eth-dwmac 2490000.ethernet eth0: Tx DMA map failed
and with DMA_API_DEBUG enabled:
DMA-API: dwc-eth-dwmac 2490000.ethernet: device driver tries to +free DMA memory it has not allocated [device address=0x000000ffffcf65c0] [size=66 bytes]
Fix this by maintaining "des" as the original DMA cookie, and use
tso_des to pass the offset DMA cookie to stmmac_tso_allocator().
Full details of the crashes can be found at:
https://lore.kernel.org/all/d8112193-0386-4e14-b516-37c2d838171a@nvidia.com/
https://lore.kernel.org/all/klkzp5yn5kq5efgtrow6wbvnc46bcqfxs65nz3qy77ujr5turc@bwwhelz2l4dw/
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ece593fc9c00741b682869d3f3dc584d37b7c9df Version: a3ff23f7c3f0e13f718900803e090fd3997d6bc9 Version: 07c9c26e37542486e34d767505e842f48f29c3f6 Version: 66600fac7a984dea4ae095411f644770b2561ede Version: 66600fac7a984dea4ae095411f644770b2561ede Version: 58d23d835eb498336716cca55b5714191a309286 Version: 5.15.171 ≤ Version: 6.1.116 ≤ Version: 6.6.60 ≤ Version: 6.11.7 ≤ |
||
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CVE-2026-31515 (GCVE-0-2026-31515)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
af_key: validate families in pfkey_send_migrate()
syzbot was able to trigger a crash in skb_put() [1]
Issue is that pfkey_send_migrate() does not check old/new families,
and that set_ipsecrequest() @family argument was truncated,
thus possibly overfilling the skb.
Validate families early, do not wait set_ipsecrequest().
[1]
skbuff: skb_over_panic: text:ffffffff8a752120 len:392 put:16 head:ffff88802a4ad040 data:ffff88802a4ad040 tail:0x188 end:0x180 dev:<NULL>
kernel BUG at net/core/skbuff.c:214 !
Call Trace:
<TASK>
skb_over_panic net/core/skbuff.c:219 [inline]
skb_put+0x159/0x210 net/core/skbuff.c:2655
skb_put_zero include/linux/skbuff.h:2788 [inline]
set_ipsecrequest net/key/af_key.c:3532 [inline]
pfkey_send_migrate+0x1270/0x2e50 net/key/af_key.c:3636
km_migrate+0x155/0x260 net/xfrm/xfrm_state.c:2848
xfrm_migrate+0x2140/0x2450 net/xfrm/xfrm_policy.c:4705
xfrm_do_migrate+0x8ff/0xaa0 net/xfrm/xfrm_user.c:3150
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece Version: 08de61beab8a21c8e0b3906a97defda5f1f66ece |
||
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CVE-2026-22979 (GCVE-0-2026-22979)
Vulnerability from cvelistv5
Published
2026-01-23 15:24
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix memory leak in skb_segment_list for GRO packets
When skb_segment_list() is called during packet forwarding, it handles
packets that were aggregated by the GRO engine.
Historically, the segmentation logic in skb_segment_list assumes that
individual segments are split from a parent SKB and may need to carry
their own socket memory accounting. Accordingly, the code transfers
truesize from the parent to the newly created segments.
Prior to commit ed4cccef64c1 ("gro: fix ownership transfer"), this
truesize subtraction in skb_segment_list() was valid because fragments
still carry a reference to the original socket.
However, commit ed4cccef64c1 ("gro: fix ownership transfer") changed
this behavior by ensuring that fraglist entries are explicitly
orphaned (skb->sk = NULL) to prevent illegal orphaning later in the
stack. This change meant that the entire socket memory charge remained
with the head SKB, but the corresponding accounting logic in
skb_segment_list() was never updated.
As a result, the current code unconditionally adds each fragment's
truesize to delta_truesize and subtracts it from the parent SKB. Since
the fragments are no longer charged to the socket, this subtraction
results in an effective under-count of memory when the head is freed.
This causes sk_wmem_alloc to remain non-zero, preventing socket
destruction and leading to a persistent memory leak.
The leak can be observed via KMEMLEAK when tearing down the networking
environment:
unreferenced object 0xffff8881e6eb9100 (size 2048):
comm "ping", pid 6720, jiffies 4295492526
backtrace:
kmem_cache_alloc_noprof+0x5c6/0x800
sk_prot_alloc+0x5b/0x220
sk_alloc+0x35/0xa00
inet6_create.part.0+0x303/0x10d0
__sock_create+0x248/0x640
__sys_socket+0x11b/0x1d0
Since skb_segment_list() is exclusively used for SKB_GSO_FRAGLIST
packets constructed by GRO, the truesize adjustment is removed.
The call to skb_release_head_state() must be preserved. As documented in
commit cf673ed0e057 ("net: fix fraglist segmentation reference count
leak"), it is still required to correctly drop references to SKB
extensions that may be overwritten during __copy_skb_header().
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
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Version: 2eeab8c47c3c0276e0746bc382f405c9a236a5ad Version: fc126c1d51e9552eacd2d717b9ffe9262a8a4cd6 Version: ed4cccef64c1d0d5b91e69f7a8a6697c3a865486 Version: ed4cccef64c1d0d5b91e69f7a8a6697c3a865486 Version: ed4cccef64c1d0d5b91e69f7a8a6697c3a865486 Version: d225b0ac96dc40d7e8ae2bc227eb2c56e130975f Version: 5b3b67f731296027cceb3efad881ae281213f86f Version: 6.1.85 ≤ Version: 6.6.26 ≤ Version: 5.15.154 ≤ Version: 6.8.5 ≤ |
||
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CVE-2024-50298 (GCVE-0-2024-50298)
Vulnerability from cvelistv5
Published
2024-11-19 01:30
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: enetc: allocate vf_state during PF probes
In the previous implementation, vf_state is allocated memory only when VF
is enabled. However, net_device_ops::ndo_set_vf_mac() may be called before
VF is enabled to configure the MAC address of VF. If this is the case,
enetc_pf_set_vf_mac() will access vf_state, resulting in access to a null
pointer. The simplified error log is as follows.
root@ls1028ardb:~# ip link set eno0 vf 1 mac 00:0c:e7:66:77:89
[ 173.543315] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004
[ 173.637254] pc : enetc_pf_set_vf_mac+0x3c/0x80 Message from sy
[ 173.641973] lr : do_setlink+0x4a8/0xec8
[ 173.732292] Call trace:
[ 173.734740] enetc_pf_set_vf_mac+0x3c/0x80
[ 173.738847] __rtnl_newlink+0x530/0x89c
[ 173.742692] rtnl_newlink+0x50/0x7c
[ 173.746189] rtnetlink_rcv_msg+0x128/0x390
[ 173.750298] netlink_rcv_skb+0x60/0x130
[ 173.754145] rtnetlink_rcv+0x18/0x24
[ 173.757731] netlink_unicast+0x318/0x380
[ 173.761665] netlink_sendmsg+0x17c/0x3c8
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-71123 (GCVE-0-2025-71123)
Vulnerability from cvelistv5
Published
2026-01-14 15:06
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix string copying in parse_apply_sb_mount_options()
strscpy_pad() can't be used to copy a non-NUL-term string into a NUL-term
string of possibly bigger size. Commit 0efc5990bca5 ("string.h: Introduce
memtostr() and memtostr_pad()") provides additional information in that
regard. So if this happens, the following warning is observed:
strnlen: detected buffer overflow: 65 byte read of buffer size 64
WARNING: CPU: 0 PID: 28655 at lib/string_helpers.c:1032 __fortify_report+0x96/0xc0 lib/string_helpers.c:1032
Modules linked in:
CPU: 0 UID: 0 PID: 28655 Comm: syz-executor.3 Not tainted 6.12.54-syzkaller-00144-g5f0270f1ba00 #0
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__fortify_report+0x96/0xc0 lib/string_helpers.c:1032
Call Trace:
<TASK>
__fortify_panic+0x1f/0x30 lib/string_helpers.c:1039
strnlen include/linux/fortify-string.h:235 [inline]
sized_strscpy include/linux/fortify-string.h:309 [inline]
parse_apply_sb_mount_options fs/ext4/super.c:2504 [inline]
__ext4_fill_super fs/ext4/super.c:5261 [inline]
ext4_fill_super+0x3c35/0xad00 fs/ext4/super.c:5706
get_tree_bdev_flags+0x387/0x620 fs/super.c:1636
vfs_get_tree+0x93/0x380 fs/super.c:1814
do_new_mount fs/namespace.c:3553 [inline]
path_mount+0x6ae/0x1f70 fs/namespace.c:3880
do_mount fs/namespace.c:3893 [inline]
__do_sys_mount fs/namespace.c:4103 [inline]
__se_sys_mount fs/namespace.c:4080 [inline]
__x64_sys_mount+0x280/0x300 fs/namespace.c:4080
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x64/0x140 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Since userspace is expected to provide s_mount_opts field to be at most 63
characters long with the ending byte being NUL-term, use a 64-byte buffer
which matches the size of s_mount_opts, so that strscpy_pad() does its job
properly. Return with error if the user still managed to provide a
non-NUL-term string here.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b2bac84fde28fb6a88817b8b761abda17a1d300b Version: e651294218d2684302ee5ed95ccf381646f3e5b4 Version: 01829af7656b56d83682b3491265d583d502e502 Version: 2a0cf438320cdb783e0378570744c0ef0d83e934 Version: 8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8 Version: 8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8 Version: 7bf46ff83a0ef11836e38ebd72cdc5107209342d Version: a6e94557cd05adc82fae0400f6e17745563e5412 Version: 5.10.246 ≤ Version: 6.1.158 ≤ Version: 6.6.114 ≤ Version: 6.12.54 ≤ Version: 5.4.301 ≤ Version: 6.17.4 ≤ |
||
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CVE-2025-21795 (GCVE-0-2025-21795)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFSD: fix hang in nfsd4_shutdown_callback
If nfs4_client is in courtesy state then there is no point to send
the callback. This causes nfsd4_shutdown_callback to hang since
cl_cb_inflight is not 0. This hang lasts about 15 minutes until TCP
notifies NFSD that the connection was dropped.
This patch modifies nfsd4_run_cb_work to skip the RPC call if
nfs4_client is in courtesy state.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 67ef9e5fd737eab2495f2586df7e9ea30caa1b77 Version: 26540b8940a2e21582afa61a6fb8af87310bac72 Version: 66af25799940b26efd41ea6e648f75c41a48a2c2 Version: 66af25799940b26efd41ea6e648f75c41a48a2c2 Version: 66af25799940b26efd41ea6e648f75c41a48a2c2 Version: 66af25799940b26efd41ea6e648f75c41a48a2c2 Version: 66af25799940b26efd41ea6e648f75c41a48a2c2 Version: 5.10.220 ≤ Version: 5.15.154 ≤ |
||
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: fix hang in nfsd4_shutdown_callback\n\nIf nfs4_client is in courtesy state then there is no point to send\nthe callback. This causes nfsd4_shutdown_callback to hang since\ncl_cb_inflight is not 0. This hang lasts about 15 minutes until TCP\nnotifies NFSD that the connection was dropped.\n\nThis patch modifies nfsd4_run_cb_work to skip the RPC call if\nnfs4_client is in courtesy state."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable code is in the in-kernel NFS server (nfsd) and is reached entirely through NFSv4 protocol operations (OPEN/delegation, LOCK) from a remote network client over the wire.\nAC:L - The attacker controls both sides \u2014 obtaining a delegation then dropping its connection to become a courtesy client, and issuing the conflicting operation that forces the recall \u2014 and the recall itself deterministically triggers the expiry that hangs on the in-flight SOFTCONN RPC, so the ~15-minute hang is reliably reproducible.\nPR:N - NFS exports commonly use AUTH_SYS (no real authentication) and may be accessible to a subnet or anonymously, so an unauthenticated network client can perform the OPEN/delegation and conflicting-lock operations needed; no verified privilege is required.\nUI:N - The attacker\u0027s own NFS operations set up and trigger the hang; no action by any legitimate user or administrator is needed.\nS:U - The hang is confined to the NFS server\u0027s own kernel context and workqueues; it does not cross a security/authority boundary such as a VM or IOMMU boundary.\nC:N - The defect is a wait/hang on an in-flight callback with no memory disclosure or out-of-bounds read; no confidential information is exposed.\nI:N - No data is modified or corrupted; the bug only stalls the callback-shutdown path and involves no write primitive or state alteration.\nA:H - `nfsd4_shutdown_callback` hangs for ~15 minutes, blocking the laundromat workqueue (all lease/state/delegation/lock cleanup) and lock-conflict resolution that flushes the same queue, and the stall can be triggered repeatedly \u2014 a severe denial of service of the NFS server."
}
]
}
],
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/abed68027ea3ab893ac85cc46a00e2e64a324239"
},
{
"url": "https://git.kernel.org/stable/c/efa8a261c575f816c7e79a87aeb3ef8a0bd6b221"
},
{
"url": "https://git.kernel.org/stable/c/38d345f612503b850c2973e5a879f88e441b34d7"
},
{
"url": "https://git.kernel.org/stable/c/23ad7797c74cd8f7f90617f1e59a8703e2b43908"
},
{
"url": "https://git.kernel.org/stable/c/cedfbb92cf97a6bff3d25633001d9c44442ee854"
},
{
"url": "https://git.kernel.org/stable/c/e88d2451cd42e025465d6b51fd716a47b0b3800d"
},
{
"url": "https://git.kernel.org/stable/c/036ac2778f7b28885814c6fbc07e156ad1624d03"
}
],
"title": "NFSD: fix hang in nfsd4_shutdown_callback",
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}
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"assignerShortName": "Linux",
"cveId": "CVE-2025-21795",
"datePublished": "2025-02-27T02:18:31.538Z",
"dateReserved": "2024-12-29T08:45:45.767Z",
"dateUpdated": "2026-08-05T11:54:30.327Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-21706 (GCVE-0-2025-21706)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: pm: only set fullmesh for subflow endp
With the in-kernel path-manager, it is possible to change the 'fullmesh'
flag. The code in mptcp_pm_nl_fullmesh() expects to change it only on
'subflow' endpoints, to recreate more or less subflows using the linked
address.
Unfortunately, the set_flags() hook was a bit more permissive, and
allowed 'implicit' endpoints to get the 'fullmesh' flag while it is not
allowed before.
That's what syzbot found, triggering the following warning:
WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 __mark_subflow_endp_available net/mptcp/pm_netlink.c:1496 [inline]
WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 mptcp_pm_nl_fullmesh net/mptcp/pm_netlink.c:1980 [inline]
WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 mptcp_nl_set_flags net/mptcp/pm_netlink.c:2003 [inline]
WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 mptcp_pm_nl_set_flags+0x974/0xdc0 net/mptcp/pm_netlink.c:2064
Modules linked in:
CPU: 0 UID: 0 PID: 6499 Comm: syz.1.413 Not tainted 6.13.0-rc5-syzkaller-00172-gd1bf27c4e176 #0
Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__mark_subflow_endp_available net/mptcp/pm_netlink.c:1496 [inline]
RIP: 0010:mptcp_pm_nl_fullmesh net/mptcp/pm_netlink.c:1980 [inline]
RIP: 0010:mptcp_nl_set_flags net/mptcp/pm_netlink.c:2003 [inline]
RIP: 0010:mptcp_pm_nl_set_flags+0x974/0xdc0 net/mptcp/pm_netlink.c:2064
Code: 01 00 00 49 89 c5 e8 fb 45 e8 f5 e9 b8 fc ff ff e8 f1 45 e8 f5 4c 89 f7 be 03 00 00 00 e8 44 1d 0b f9 eb a0 e8 dd 45 e8 f5 90 <0f> 0b 90 e9 17 ff ff ff 89 d9 80 e1 07 38 c1 0f 8c c9 fc ff ff 48
RSP: 0018:ffffc9000d307240 EFLAGS: 00010293
RAX: ffffffff8bb72e03 RBX: 0000000000000000 RCX: ffff88807da88000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d307430 R08: ffffffff8bb72cf0 R09: 1ffff1100b842a5e
R10: dffffc0000000000 R11: ffffed100b842a5f R12: ffff88801e2e5ac0
R13: ffff88805c214800 R14: ffff88805c2152e8 R15: 1ffff1100b842a5d
FS: 00005555619f6500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002840 CR3: 00000000247e6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:726
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583
___sys_sendmsg net/socket.c:2637 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2669
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5fe8785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff571f5558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5fe8975fa0 RCX: 00007f5fe8785d29
RDX: 0000000000000000 RSI: 0000000020000480 RDI: 0000000000000007
RBP: 00007f5fe8801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5fe8975fa0 R14: 00007f5fe8975fa0 R15: 000000
---truncated---
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
}
],
"title": "CVE Program Container"
},
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{
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}
]
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"version": "V3.1.6",
"versionType": "custom"
}
]
},
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}
]
},
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"vendor": "Siemens",
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"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"versionType": "git"
},
{
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],
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.18"
},
{
"lessThan": "5.18",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.1.129",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.78",
"versionType": "semver"
},
{
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"version": "6.12.13",
"versionType": "semver"
},
{
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"version": "6.13.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
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"versionStartIncluding": "5.18",
"vulnerable": true
},
{
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"versionStartIncluding": "5.18",
"vulnerable": true
},
{
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"vulnerable": true
},
{
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"versionEndExcluding": "6.13.2",
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"vulnerable": true
},
{
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"versionEndExcluding": "6.14",
"versionStartIncluding": "5.18",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: only set fullmesh for subflow endp\n\nWith the in-kernel path-manager, it is possible to change the \u0027fullmesh\u0027\nflag. The code in mptcp_pm_nl_fullmesh() expects to change it only on\n\u0027subflow\u0027 endpoints, to recreate more or less subflows using the linked\naddress.\n\nUnfortunately, the set_flags() hook was a bit more permissive, and\nallowed \u0027implicit\u0027 endpoints to get the \u0027fullmesh\u0027 flag while it is not\nallowed before.\n\nThat\u0027s what syzbot found, triggering the following warning:\n\n WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 __mark_subflow_endp_available net/mptcp/pm_netlink.c:1496 [inline]\n WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 mptcp_pm_nl_fullmesh net/mptcp/pm_netlink.c:1980 [inline]\n WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 mptcp_nl_set_flags net/mptcp/pm_netlink.c:2003 [inline]\n WARNING: CPU: 0 PID: 6499 at net/mptcp/pm_netlink.c:1496 mptcp_pm_nl_set_flags+0x974/0xdc0 net/mptcp/pm_netlink.c:2064\n Modules linked in:\n CPU: 0 UID: 0 PID: 6499 Comm: syz.1.413 Not tainted 6.13.0-rc5-syzkaller-00172-gd1bf27c4e176 #0\n Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\n RIP: 0010:__mark_subflow_endp_available net/mptcp/pm_netlink.c:1496 [inline]\n RIP: 0010:mptcp_pm_nl_fullmesh net/mptcp/pm_netlink.c:1980 [inline]\n RIP: 0010:mptcp_nl_set_flags net/mptcp/pm_netlink.c:2003 [inline]\n RIP: 0010:mptcp_pm_nl_set_flags+0x974/0xdc0 net/mptcp/pm_netlink.c:2064\n Code: 01 00 00 49 89 c5 e8 fb 45 e8 f5 e9 b8 fc ff ff e8 f1 45 e8 f5 4c 89 f7 be 03 00 00 00 e8 44 1d 0b f9 eb a0 e8 dd 45 e8 f5 90 \u003c0f\u003e 0b 90 e9 17 ff ff ff 89 d9 80 e1 07 38 c1 0f 8c c9 fc ff ff 48\n RSP: 0018:ffffc9000d307240 EFLAGS: 00010293\n RAX: ffffffff8bb72e03 RBX: 0000000000000000 RCX: ffff88807da88000\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ffffc9000d307430 R08: ffffffff8bb72cf0 R09: 1ffff1100b842a5e\n R10: dffffc0000000000 R11: ffffed100b842a5f R12: ffff88801e2e5ac0\n R13: ffff88805c214800 R14: ffff88805c2152e8 R15: 1ffff1100b842a5d\n FS: 00005555619f6500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020002840 CR3: 00000000247e6000 CR4: 00000000003526f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n \u003cTASK\u003e\n genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]\n genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]\n genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542\n genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219\n netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]\n netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347\n netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891\n sock_sendmsg_nosec net/socket.c:711 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:726\n ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583\n ___sys_sendmsg net/socket.c:2637 [inline]\n __sys_sendmsg+0x269/0x350 net/socket.c:2669\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7f5fe8785d29\n Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\n RSP: 002b:00007fff571f5558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n RAX: ffffffffffffffda RBX: 00007f5fe8975fa0 RCX: 00007f5fe8785d29\n RDX: 0000000000000000 RSI: 0000000020000480 RDI: 0000000000000007\n RBP: 00007f5fe8801b08 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\n R13: 00007f5fe8975fa0 R14: 00007f5fe8975fa0 R15: 000000\n---truncated---"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:04:49.949Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/22b0734c9401a74ed4ebd9e8ef0da33e493852eb"
},
{
"url": "https://git.kernel.org/stable/c/de3b8d41d2547452c4cafb146d003fa4689fbaf2"
},
{
"url": "https://git.kernel.org/stable/c/8ac344cbd84fda75e05e1f445f7f8fb24dc175e1"
},
{
"url": "https://git.kernel.org/stable/c/9e3d61620a3cd033319553b980ff3a350adbe1bc"
},
{
"url": "https://git.kernel.org/stable/c/1bb0d1348546ad059f55c93def34e67cb2a034a6"
}
],
"title": "mptcp: pm: only set fullmesh for subflow endp",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-21706",
"datePublished": "2025-02-27T02:07:20.458Z",
"dateReserved": "2024-12-29T08:45:45.751Z",
"dateUpdated": "2026-07-14T12:39:46.492Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-31565 (GCVE-0-2026-31565)
Vulnerability from cvelistv5
Published
2026-04-24 14:35
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/irdma: Fix deadlock during netdev reset with active connections
Resolve deadlock that occurs when user executes netdev reset while RDMA
applications (e.g., rping) are active. The netdev reset causes ice
driver to remove irdma auxiliary driver, triggering device_delete and
subsequent client removal. During client removal, uverbs_client waits
for QP reference count to reach zero while cma_client holds the final
reference, creating circular dependency and indefinite wait in iWARP
mode. Skip QP reference count wait during device reset to prevent
deadlock.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2023-51384 (GCVE-0-2023-51384)
Vulnerability from cvelistv5
Published
2023-12-18 00:00
Modified
2026-07-14 12:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-71079 (GCVE-0-2025-71079)
Vulnerability from cvelistv5
Published
2026-01-13 15:34
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: nfc: fix deadlock between nfc_unregister_device and rfkill_fop_write
A deadlock can occur between nfc_unregister_device() and rfkill_fop_write()
due to lock ordering inversion between device_lock and rfkill_global_mutex.
The problematic lock order is:
Thread A (rfkill_fop_write):
rfkill_fop_write()
mutex_lock(&rfkill_global_mutex)
rfkill_set_block()
nfc_rfkill_set_block()
nfc_dev_down()
device_lock(&dev->dev) <- waits for device_lock
Thread B (nfc_unregister_device):
nfc_unregister_device()
device_lock(&dev->dev)
rfkill_unregister()
mutex_lock(&rfkill_global_mutex) <- waits for rfkill_global_mutex
This creates a classic ABBA deadlock scenario.
Fix this by moving rfkill_unregister() and rfkill_destroy() outside the
device_lock critical section. Store the rfkill pointer in a local variable
before releasing the lock, then call rfkill_unregister() after releasing
device_lock.
This change is safe because rfkill_fop_write() holds rfkill_global_mutex
while calling the rfkill callbacks, and rfkill_unregister() also acquires
rfkill_global_mutex before cleanup. Therefore, rfkill_unregister() will
wait for any ongoing callback to complete before proceeding, and
device_del() is only called after rfkill_unregister() returns, preventing
any use-after-free.
The similar lock ordering in nfc_register_device() (device_lock ->
rfkill_global_mutex via rfkill_register) is safe because during
registration the device is not yet in rfkill_list, so no concurrent
rfkill operations can occur on this device.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 73a0d12114b4bc1a9def79a623264754b9df698e Version: 8a9c61c3ef187d8891225f9b932390670a43a0d3 Version: 3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 Version: 3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 Version: 3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 Version: 3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 Version: 3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 Version: 5ef16d2d172ee56714cff37cd005b98aba08ef5a Version: ff169909eac9e00bf1aa0af739ba6ddfb1b1d135 Version: 47244ac0b65bd74cc70007d8e1bac68bd2baad19 Version: c45cea83e13699bdfd47842e04d09dd43af4c371 Version: 307d2e6cebfca9d92f86c8e2c8e3dd4a8be46ba6 Version: 5.10.82 ≤ Version: 5.15.5 ≤ Version: 4.4.293 ≤ Version: 4.9.291 ≤ Version: 4.14.256 ≤ Version: 4.19.218 ≤ Version: 5.4.162 ≤ |
||
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CVE-2025-71095 (GCVE-0-2025-71095)
Vulnerability from cvelistv5
Published
2026-01-13 15:34
Modified
2026-08-05 12:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: fix the crash issue for zero copy XDP_TX action
There is a crash issue when running zero copy XDP_TX action, the crash
log is shown below.
[ 216.122464] Unable to handle kernel paging request at virtual address fffeffff80000000
[ 216.187524] Internal error: Oops: 0000000096000144 [#1] SMP
[ 216.301694] Call trace:
[ 216.304130] dcache_clean_poc+0x20/0x38 (P)
[ 216.308308] __dma_sync_single_for_device+0x1bc/0x1e0
[ 216.313351] stmmac_xdp_xmit_xdpf+0x354/0x400
[ 216.317701] __stmmac_xdp_run_prog+0x164/0x368
[ 216.322139] stmmac_napi_poll_rxtx+0xba8/0xf00
[ 216.326576] __napi_poll+0x40/0x218
[ 216.408054] Kernel panic - not syncing: Oops: Fatal exception in interrupt
For XDP_TX action, the xdp_buff is converted to xdp_frame by
xdp_convert_buff_to_frame(). The memory type of the resulting xdp_frame
depends on the memory type of the xdp_buff. For page pool based xdp_buff
it produces xdp_frame with memory type MEM_TYPE_PAGE_POOL. For zero copy
XSK pool based xdp_buff it produces xdp_frame with memory type
MEM_TYPE_PAGE_ORDER0. However, stmmac_xdp_xmit_back() does not check the
memory type and always uses the page pool type, this leads to invalid
mappings and causes the crash. Therefore, check the xdp_buff memory type
in stmmac_xdp_xmit_back() to fix this issue.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: fix the crash issue for zero copy XDP_TX action\n\nThere is a crash issue when running zero copy XDP_TX action, the crash\nlog is shown below.\n\n[ 216.122464] Unable to handle kernel paging request at virtual address fffeffff80000000\n[ 216.187524] Internal error: Oops: 0000000096000144 [#1] SMP\n[ 216.301694] Call trace:\n[ 216.304130] dcache_clean_poc+0x20/0x38 (P)\n[ 216.308308] __dma_sync_single_for_device+0x1bc/0x1e0\n[ 216.313351] stmmac_xdp_xmit_xdpf+0x354/0x400\n[ 216.317701] __stmmac_xdp_run_prog+0x164/0x368\n[ 216.322139] stmmac_napi_poll_rxtx+0xba8/0xf00\n[ 216.326576] __napi_poll+0x40/0x218\n[ 216.408054] Kernel panic - not syncing: Oops: Fatal exception in interrupt\n\nFor XDP_TX action, the xdp_buff is converted to xdp_frame by\nxdp_convert_buff_to_frame(). The memory type of the resulting xdp_frame\ndepends on the memory type of the xdp_buff. For page pool based xdp_buff\nit produces xdp_frame with memory type MEM_TYPE_PAGE_POOL. For zero copy\nXSK pool based xdp_buff it produces xdp_frame with memory type\nMEM_TYPE_PAGE_ORDER0. However, stmmac_xdp_xmit_back() does not check the\nmemory type and always uses the page pool type, this leads to invalid\nmappings and causes the crash. Therefore, check the xdp_buff memory type\nin stmmac_xdp_xmit_back() to fix this issue."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - An unauthenticated network peer can supply a frame that reaches the stmmac zero-copy receive path and XDP_TX action on a configured interface.\nAC:L - Once an AF_XDP zero-copy queue and suitable XDP program are active, a qualifying packet deterministically triggers the invalid mapping; no race or uncontrollable condition is required.\nPR:N - The administrative privileges needed to configure AF_XDP and XDP are a deployment prerequisite, while the remote attacker triggering the receive path requires no account or capability.\nUI:N - No victim action is required after the vulnerable networking configuration is active.\nS:U - The fault and resulting impacts remain within the host kernel and its resources, without crossing a VM, IOMMU, or separate security authority.\nC:H - On coherent direct-DMA systems, the invalid page-pool address can reach the TX descriptor and cause the NIC to read and emit unrelated physical memory; repeated allocations make substantial disclosure defensible.\nI:N - The erroneous mapping is used for TX DMA, which reads host memory, and the duplicate XSK-buffer return is guarded against reinsertion; no credible arbitrary-write primitive was found.\nA:H - The demonstrated invalid DMA synchronization causes an interrupt-context oops and kernel panic, and a remote peer can repeatedly send qualifying packets."
}
]
}
],
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"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/3f7823219407f2f18044c2b72366a48810c5c821"
},
{
"url": "https://git.kernel.org/stable/c/4d0ceb7677e1c4616afb96abb4518f70b65abb0d"
},
{
"url": "https://git.kernel.org/stable/c/45ee0462b88396a0bd1df1991f801c89994ea72b"
},
{
"url": "https://git.kernel.org/stable/c/5e5988736a95b1de7f91b10ac2575454b70e4897"
},
{
"url": "https://git.kernel.org/stable/c/a48e232210009be50591fdea8ba7c07b0f566a13"
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"title": "net: stmmac: fix the crash issue for zero copy XDP_TX action",
"x_generator": {
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"assignerShortName": "Linux",
"cveId": "CVE-2025-71095",
"datePublished": "2026-01-13T15:34:55.392Z",
"dateReserved": "2026-01-13T15:30:19.650Z",
"dateUpdated": "2026-08-05T12:12:03.079Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-68798 (GCVE-0-2025-68798)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
perf/x86/amd: Check event before enable to avoid GPF
On AMD machines cpuc->events[idx] can become NULL in a subtle race
condition with NMI->throttle->x86_pmu_stop().
Check event for NULL in amd_pmu_enable_all() before enable to avoid a GPF.
This appears to be an AMD only issue.
Syzkaller reported a GPF in amd_pmu_enable_all.
INFO: NMI handler (perf_event_nmi_handler) took too long to run: 13.143
msecs
Oops: general protection fault, probably for non-canonical address
0xdffffc0000000034: 0000 PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000001a0-0x00000000000001a7]
CPU: 0 UID: 0 PID: 328415 Comm: repro_36674776 Not tainted 6.12.0-rc1-syzk
RIP: 0010:x86_pmu_enable_event (arch/x86/events/perf_event.h:1195
arch/x86/events/core.c:1430)
RSP: 0018:ffff888118009d60 EFLAGS: 00010012
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000034 RSI: 0000000000000000 RDI: 00000000000001a0
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002
R13: ffff88811802a440 R14: ffff88811802a240 R15: ffff8881132d8601
FS: 00007f097dfaa700(0000) GS:ffff888118000000(0000) GS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 0000000103d56000 CR4: 00000000000006f0
Call Trace:
<IRQ>
amd_pmu_enable_all (arch/x86/events/amd/core.c:760 (discriminator 2))
x86_pmu_enable (arch/x86/events/core.c:1360)
event_sched_out (kernel/events/core.c:1191 kernel/events/core.c:1186
kernel/events/core.c:2346)
__perf_remove_from_context (kernel/events/core.c:2435)
event_function (kernel/events/core.c:259)
remote_function (kernel/events/core.c:92 (discriminator 1)
kernel/events/core.c:72 (discriminator 1))
__flush_smp_call_function_queue (./arch/x86/include/asm/jump_label.h:27
./include/linux/jump_label.h:207 ./include/trace/events/csd.h:64
kernel/smp.c:135 kernel/smp.c:540)
__sysvec_call_function_single (./arch/x86/include/asm/jump_label.h:27
./include/linux/jump_label.h:207
./arch/x86/include/asm/trace/irq_vectors.h:99 arch/x86/kernel/smp.c:272)
sysvec_call_function_single (arch/x86/kernel/smp.c:266 (discriminator 47)
arch/x86/kernel/smp.c:266 (discriminator 47))
</IRQ>
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"affected": [
{
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
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]
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"versions": [
{
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"version": "V3.1.6",
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}
]
},
{
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{
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"status": "affected",
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"versionType": "custom"
}
]
},
{
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}
]
},
{
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"vendor": "Siemens",
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{
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"status": "affected",
"version": "V3.1.6",
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}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T12:44:19.331Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/x86/events/amd/core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"versionType": "git"
},
{
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},
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},
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.19"
},
{
"lessThan": "5.19",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
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},
{
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"versionType": "semver"
},
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{
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},
{
"lessThanOrEqual": "*",
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"versionType": "original_commit_for_fix"
}
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}
],
"cpeApplicability": [
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{
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"vulnerable": true
},
{
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{
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/amd: Check event before enable to avoid GPF\n\nOn AMD machines cpuc-\u003eevents[idx] can become NULL in a subtle race\ncondition with NMI-\u003ethrottle-\u003ex86_pmu_stop().\n\nCheck event for NULL in amd_pmu_enable_all() before enable to avoid a GPF.\nThis appears to be an AMD only issue.\n\nSyzkaller reported a GPF in amd_pmu_enable_all.\n\nINFO: NMI handler (perf_event_nmi_handler) took too long to run: 13.143\n msecs\nOops: general protection fault, probably for non-canonical address\n 0xdffffc0000000034: 0000 PREEMPT SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x00000000000001a0-0x00000000000001a7]\nCPU: 0 UID: 0 PID: 328415 Comm: repro_36674776 Not tainted 6.12.0-rc1-syzk\nRIP: 0010:x86_pmu_enable_event (arch/x86/events/perf_event.h:1195\n arch/x86/events/core.c:1430)\nRSP: 0018:ffff888118009d60 EFLAGS: 00010012\nRAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000\nRDX: 0000000000000034 RSI: 0000000000000000 RDI: 00000000000001a0\nRBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002\nR13: ffff88811802a440 R14: ffff88811802a240 R15: ffff8881132d8601\nFS: 00007f097dfaa700(0000) GS:ffff888118000000(0000) GS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200001c0 CR3: 0000000103d56000 CR4: 00000000000006f0\nCall Trace:\n \u003cIRQ\u003e\namd_pmu_enable_all (arch/x86/events/amd/core.c:760 (discriminator 2))\nx86_pmu_enable (arch/x86/events/core.c:1360)\nevent_sched_out (kernel/events/core.c:1191 kernel/events/core.c:1186\n kernel/events/core.c:2346)\n__perf_remove_from_context (kernel/events/core.c:2435)\nevent_function (kernel/events/core.c:259)\nremote_function (kernel/events/core.c:92 (discriminator 1)\n kernel/events/core.c:72 (discriminator 1))\n__flush_smp_call_function_queue (./arch/x86/include/asm/jump_label.h:27\n ./include/linux/jump_label.h:207 ./include/trace/events/csd.h:64\n kernel/smp.c:135 kernel/smp.c:540)\n__sysvec_call_function_single (./arch/x86/include/asm/jump_label.h:27\n ./include/linux/jump_label.h:207\n ./arch/x86/include/asm/trace/irq_vectors.h:99 arch/x86/kernel/smp.c:272)\nsysvec_call_function_single (arch/x86/kernel/smp.c:266 (discriminator 47)\n arch/x86/kernel/smp.c:266 (discriminator 47))\n \u003c/IRQ\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:53:32.717Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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{
"url": "https://git.kernel.org/stable/c/6e41d9ec8d7cc3f01b9ba785e05f0ebef8b3b37f"
},
{
"url": "https://git.kernel.org/stable/c/e1028fb38b328084bc683a4efb001c95d3108573"
},
{
"url": "https://git.kernel.org/stable/c/43c2e5c2acaae50e99d1c20a5a46e367c442fb3b"
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"url": "https://git.kernel.org/stable/c/866cf36bfee4fba6a492d2dcc5133f857e3446b0"
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"title": "perf/x86/amd: Check event before enable to avoid GPF",
"x_generator": {
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}
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"datePublished": "2026-01-13T15:29:08.329Z",
"dateReserved": "2025-12-24T10:30:51.042Z",
"dateUpdated": "2026-07-14T12:44:19.331Z",
"state": "PUBLISHED"
},
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}
CVE-2025-21999 (GCVE-0-2025-21999)
Vulnerability from cvelistv5
Published
2025-04-03 07:19
Modified
2026-08-05 11:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
proc: fix UAF in proc_get_inode()
Fix race between rmmod and /proc/XXX's inode instantiation.
The bug is that pde->proc_ops don't belong to /proc, it belongs to a
module, therefore dereferencing it after /proc entry has been registered
is a bug unless use_pde/unuse_pde() pair has been used.
use_pde/unuse_pde can be avoided (2 atomic ops!) because pde->proc_ops
never changes so information necessary for inode instantiation can be
saved _before_ proc_register() in PDE itself and used later, avoiding
pde->proc_ops->... dereference.
rmmod lookup
sys_delete_module
proc_lookup_de
pde_get(de);
proc_get_inode(dir->i_sb, de);
mod->exit()
proc_remove
remove_proc_subtree
proc_entry_rundown(de);
free_module(mod);
if (S_ISREG(inode->i_mode))
if (de->proc_ops->proc_read_iter)
--> As module is already freed, will trigger UAF
BUG: unable to handle page fault for address: fffffbfff80a702b
PGD 817fc4067 P4D 817fc4067 PUD 817fc0067 PMD 102ef4067 PTE 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 26 UID: 0 PID: 2667 Comm: ls Tainted: G
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
RIP: 0010:proc_get_inode+0x302/0x6e0
RSP: 0018:ffff88811c837998 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffffffffc0538140 RCX: 0000000000000007
RDX: 1ffffffff80a702b RSI: 0000000000000001 RDI: ffffffffc0538158
RBP: ffff8881299a6000 R08: 0000000067bbe1e5 R09: 1ffff11023906f20
R10: ffffffffb560ca07 R11: ffffffffb2b43a58 R12: ffff888105bb78f0
R13: ffff888100518048 R14: ffff8881299a6004 R15: 0000000000000001
FS: 00007f95b9686840(0000) GS:ffff8883af100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff80a702b CR3: 0000000117dd2000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
proc_lookup_de+0x11f/0x2e0
__lookup_slow+0x188/0x350
walk_component+0x2ab/0x4f0
path_lookupat+0x120/0x660
filename_lookup+0x1ce/0x560
vfs_statx+0xac/0x150
__do_sys_newstat+0x96/0x110
do_syscall_64+0x5f/0x170
entry_SYSCALL_64_after_hwframe+0x76/0x7e
[adobriyan@gmail.com: don't do 2 atomic ops on the common path]
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 97a32539b9568bb653683349e5a76d02ff3c3e2c Version: 97a32539b9568bb653683349e5a76d02ff3c3e2c Version: 97a32539b9568bb653683349e5a76d02ff3c3e2c Version: 97a32539b9568bb653683349e5a76d02ff3c3e2c Version: 97a32539b9568bb653683349e5a76d02ff3c3e2c Version: 97a32539b9568bb653683349e5a76d02ff3c3e2c Version: 97a32539b9568bb653683349e5a76d02ff3c3e2c |
||
{
"containers": {
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{
"metrics": [
{
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"attackVector": "LOCAL",
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"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-21999",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-03T15:26:31.372538Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-03T15:27:39.157Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T19:40:42.019Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
}
],
"title": "CVE Program Container"
},
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CVE-2025-21926 (GCVE-0-2025-21926)
Vulnerability from cvelistv5
Published
2025-04-01 15:40
Modified
2026-08-05 11:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: gso: fix ownership in __udp_gso_segment
In __udp_gso_segment the skb destructor is removed before segmenting the
skb but the socket reference is kept as-is. This is an issue if the
original skb is later orphaned as we can hit the following bug:
kernel BUG at ./include/linux/skbuff.h:3312! (skb_orphan)
RIP: 0010:ip_rcv_core+0x8b2/0xca0
Call Trace:
ip_rcv+0xab/0x6e0
__netif_receive_skb_one_core+0x168/0x1b0
process_backlog+0x384/0x1100
__napi_poll.constprop.0+0xa1/0x370
net_rx_action+0x925/0xe50
The above can happen following a sequence of events when using
OpenVSwitch, when an OVS_ACTION_ATTR_USERSPACE action precedes an
OVS_ACTION_ATTR_OUTPUT action:
1. OVS_ACTION_ATTR_USERSPACE is handled (in do_execute_actions): the skb
goes through queue_gso_packets and then __udp_gso_segment, where its
destructor is removed.
2. The segments' data are copied and sent to userspace.
3. OVS_ACTION_ATTR_OUTPUT is handled (in do_execute_actions) and the
same original skb is sent to its path.
4. If it later hits skb_orphan, we hit the bug.
Fix this by also removing the reference to the socket in
__udp_gso_segment.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ad405857b174ed31a97982bb129c320d03321cf5 Version: ad405857b174ed31a97982bb129c320d03321cf5 Version: ad405857b174ed31a97982bb129c320d03321cf5 Version: ad405857b174ed31a97982bb129c320d03321cf5 Version: ad405857b174ed31a97982bb129c320d03321cf5 Version: ad405857b174ed31a97982bb129c320d03321cf5 Version: ad405857b174ed31a97982bb129c320d03321cf5 Version: ad405857b174ed31a97982bb129c320d03321cf5 |
||
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CVE-2026-31496 (GCVE-0-2026-31496)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_expect: skip expectations in other netns via proc
Skip expectations that do not reside in this netns.
Similar to e77e6ff502ea ("netfilter: conntrack: do not dump other netns's
conntrack entries via proc").
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9b03f38d0487f3908696242286d934c9b38f9d2a Version: 9b03f38d0487f3908696242286d934c9b38f9d2a Version: 9b03f38d0487f3908696242286d934c9b38f9d2a Version: 9b03f38d0487f3908696242286d934c9b38f9d2a Version: 9b03f38d0487f3908696242286d934c9b38f9d2a Version: 9b03f38d0487f3908696242286d934c9b38f9d2a |
||
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CVE-2025-68724 (GCVE-0-2025-68724)
Vulnerability from cvelistv5
Published
2025-12-24 10:33
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id
Use check_add_overflow() to guard against potential integer overflows
when adding the binary blob lengths and the size of an asymmetric_key_id
structure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a
possible buffer overflow when copying data from potentially malicious
X.509 certificate fields that can be arbitrarily large, such as ASN.1
INTEGER serial numbers, issuer names, etc.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2024-58058 (GCVE-0-2024-58058)
Vulnerability from cvelistv5
Published
2025-03-06 15:54
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ubifs: skip dumping tnc tree when zroot is null
Clearing slab cache will free all znode in memory and make
c->zroot.znode = NULL, then dumping tnc tree will access
c->zroot.znode which cause null pointer dereference.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d Version: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d |
||
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CVE-2025-40135 (GCVE-0-2025-40135)
Vulnerability from cvelistv5
Published
2025-11-12 10:23
Modified
2026-08-05 12:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: use RCU in ip6_xmit()
Use RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent
possible UAF.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-31415 (GCVE-0-2026-31415)
Vulnerability from cvelistv5
Published
2026-04-13 13:21
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: avoid overflows in ip6_datagram_send_ctl()
Yiming Qian reported :
<quote>
I believe I found a locally triggerable kernel bug in the IPv6 sendmsg
ancillary-data path that can panic the kernel via `skb_under_panic()`
(local DoS).
The core issue is a mismatch between:
- a 16-bit length accumulator (`struct ipv6_txoptions::opt_flen`, type
`__u16`) and
- a pointer to the *last* provided destination-options header (`opt->dst1opt`)
when multiple `IPV6_DSTOPTS` control messages (cmsgs) are provided.
- `include/net/ipv6.h`:
- `struct ipv6_txoptions::opt_flen` is `__u16` (wrap possible).
(lines 291-307, especially 298)
- `net/ipv6/datagram.c:ip6_datagram_send_ctl()`:
- Accepts repeated `IPV6_DSTOPTS` and accumulates into `opt_flen`
without rejecting duplicates. (lines 909-933)
- `net/ipv6/ip6_output.c:__ip6_append_data()`:
- Uses `opt->opt_flen + opt->opt_nflen` to compute header
sizes/headroom decisions. (lines 1448-1466, especially 1463-1465)
- `net/ipv6/ip6_output.c:__ip6_make_skb()`:
- Calls `ipv6_push_frag_opts()` if `opt->opt_flen` is non-zero.
(lines 1930-1934)
- `net/ipv6/exthdrs.c:ipv6_push_frag_opts()` / `ipv6_push_exthdr()`:
- Push size comes from `ipv6_optlen(opt->dst1opt)` (based on the
pointed-to header). (lines 1179-1185 and 1206-1211)
1. `opt_flen` is a 16-bit accumulator:
- `include/net/ipv6.h:298` defines `__u16 opt_flen; /* after fragment hdr */`.
2. `ip6_datagram_send_ctl()` accepts *repeated* `IPV6_DSTOPTS` cmsgs
and increments `opt_flen` each time:
- In `net/ipv6/datagram.c:909-933`, for `IPV6_DSTOPTS`:
- It computes `len = ((hdr->hdrlen + 1) << 3);`
- It checks `CAP_NET_RAW` using `ns_capable(net->user_ns,
CAP_NET_RAW)`. (line 922)
- Then it does:
- `opt->opt_flen += len;` (line 927)
- `opt->dst1opt = hdr;` (line 928)
There is no duplicate rejection here (unlike the legacy
`IPV6_2292DSTOPTS` path which rejects duplicates at
`net/ipv6/datagram.c:901-904`).
If enough large `IPV6_DSTOPTS` cmsgs are provided, `opt_flen` wraps
while `dst1opt` still points to a large (2048-byte)
destination-options header.
In the attached PoC (`poc.c`):
- 32 cmsgs with `hdrlen=255` => `len = (255+1)*8 = 2048`
- 1 cmsg with `hdrlen=0` => `len = 8`
- Total increment: `32*2048 + 8 = 65544`, so `(__u16)opt_flen == 8`
- The last cmsg is 2048 bytes, so `dst1opt` points to a 2048-byte header.
3. The transmit path sizes headers using the wrapped `opt_flen`:
- In `net/ipv6/ip6_output.c:1463-1465`:
- `headersize = sizeof(struct ipv6hdr) + (opt ? opt->opt_flen +
opt->opt_nflen : 0) + ...;`
With wrapped `opt_flen`, `headersize`/headroom decisions underestimate
what will be pushed later.
4. When building the final skb, the actual push length comes from
`dst1opt` and is not limited by wrapped `opt_flen`:
- In `net/ipv6/ip6_output.c:1930-1934`:
- `if (opt->opt_flen) proto = ipv6_push_frag_opts(skb, opt, proto);`
- In `net/ipv6/exthdrs.c:1206-1211`, `ipv6_push_frag_opts()` pushes
`dst1opt` via `ipv6_push_exthdr()`.
- In `net/ipv6/exthdrs.c:1179-1184`, `ipv6_push_exthdr()` does:
- `skb_push(skb, ipv6_optlen(opt));`
- `memcpy(h, opt, ipv6_optlen(opt));`
With insufficient headroom, `skb_push()` underflows and triggers
`skb_under_panic()` -> `BUG()`:
- `net/core/skbuff.c:2669-2675` (`skb_push()` calls `skb_under_panic()`)
- `net/core/skbuff.c:207-214` (`skb_panic()` ends in `BUG()`)
- The `IPV6_DSTOPTS` cmsg path requires `CAP_NET_RAW` in the target
netns user namespace (`ns_capable(net->user_ns, CAP_NET_RAW)`).
- Root (or any task with `CAP_NET_RAW`) can trigger this without user
namespaces.
- An unprivileged `uid=1000` user can trigger this if unprivileged
user namespaces are enabled and it can create a userns+netns to obtain
namespaced `CAP_NET_RAW` (the attached PoC does this).
- Local denial of service: kernel BUG/panic (system crash).
-
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 Version: 333fad5364d6b457c8d837f7d05802d2aaf8a961 |
||
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CVE-2024-57979 (GCVE-0-2024-57979)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-08-05 11:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
pps: Fix a use-after-free
On a board running ntpd and gpsd, I'm seeing a consistent use-after-free
in sys_exit() from gpsd when rebooting:
pps pps1: removed
------------[ cut here ]------------
kobject: '(null)' (00000000db4bec24): is not initialized, yet kobject_put() is being called.
WARNING: CPU: 2 PID: 440 at lib/kobject.c:734 kobject_put+0x120/0x150
CPU: 2 UID: 299 PID: 440 Comm: gpsd Not tainted 6.11.0-rc6-00308-gb31c44928842 #1
Hardware name: Raspberry Pi 4 Model B Rev 1.1 (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kobject_put+0x120/0x150
lr : kobject_put+0x120/0x150
sp : ffffffc0803d3ae0
x29: ffffffc0803d3ae0 x28: ffffff8042dc9738 x27: 0000000000000001
x26: 0000000000000000 x25: ffffff8042dc9040 x24: ffffff8042dc9440
x23: ffffff80402a4620 x22: ffffff8042ef4bd0 x21: ffffff80405cb600
x20: 000000000008001b x19: ffffff8040b3b6e0 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 696e6920746f6e20
x14: 7369203a29343263 x13: 205d303434542020 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
kobject_put+0x120/0x150
cdev_put+0x20/0x3c
__fput+0x2c4/0x2d8
____fput+0x1c/0x38
task_work_run+0x70/0xfc
do_exit+0x2a0/0x924
do_group_exit+0x34/0x90
get_signal+0x7fc/0x8c0
do_signal+0x128/0x13b4
do_notify_resume+0xdc/0x160
el0_svc+0xd4/0xf8
el0t_64_sync_handler+0x140/0x14c
el0t_64_sync+0x190/0x194
---[ end trace 0000000000000000 ]---
...followed by more symptoms of corruption, with similar stacks:
refcount_t: underflow; use-after-free.
kernel BUG at lib/list_debug.c:62!
Kernel panic - not syncing: Oops - BUG: Fatal exception
This happens because pps_device_destruct() frees the pps_device with the
embedded cdev immediately after calling cdev_del(), but, as the comment
above cdev_del() notes, fops for previously opened cdevs are still
callable even after cdev_del() returns. I think this bug has always
been there: I can't explain why it suddenly started happening every time
I reboot this particular board.
In commit d953e0e837e6 ("pps: Fix a use-after free bug when
unregistering a source."), George Spelvin suggested removing the
embedded cdev. That seems like the simplest way to fix this, so I've
implemented his suggestion, using __register_chrdev() with pps_idr
becoming the source of truth for which minor corresponds to which
device.
But now that pps_idr defines userspace visibility instead of cdev_add(),
we need to be sure the pps->dev refcount can't reach zero while
userspace can still find it again. So, the idr_remove() call moves to
pps_unregister_cdev(), and pps_idr now holds a reference to pps->dev.
pps_core: source serial1 got cdev (251:1)
<...>
pps pps1: removed
pps_core: unregistering pps1
pps_core: deallocating pps1
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: d953e0e837e65ecc1ddaa4f9560f7925878a0de6 Version: 77327a71f9841b7dfa708195d1cb133d4ef4a989 Version: cd59fb14918a6b20c1ac8be121fa6397b97b00cb Version: 49626fbb0360332e40fd76a48cb2ba876d6134ad Version: 3.2.40 ≤ Version: 3.4.87 ≤ Version: 3.8.1 ≤ |
||
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CVE-2024-58016 (GCVE-0-2024-58016)
Vulnerability from cvelistv5
Published
2025-02-27 02:12
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
safesetid: check size of policy writes
syzbot attempts to write a buffer with a large size to a sysfs entry
with writes handled by handle_policy_update(), triggering a warning
in kmalloc.
Check the size specified for write buffers before allocating.
[PM: subject tweak]
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: aeca4e2ca65c1aeacfbe520684e6421719d99417 Version: aeca4e2ca65c1aeacfbe520684e6421719d99417 Version: aeca4e2ca65c1aeacfbe520684e6421719d99417 Version: aeca4e2ca65c1aeacfbe520684e6421719d99417 Version: aeca4e2ca65c1aeacfbe520684e6421719d99417 Version: aeca4e2ca65c1aeacfbe520684e6421719d99417 Version: aeca4e2ca65c1aeacfbe520684e6421719d99417 |
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"datePublished": "2025-02-27T02:12:08.547Z",
"dateReserved": "2025-02-27T02:10:48.228Z",
"dateUpdated": "2026-07-14T12:38:52.567Z",
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CVE-2026-23321 (GCVE-0-2026-23321)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: pm: in-kernel: always mark signal+subflow endp as used
Syzkaller managed to find a combination of actions that was generating
this warning:
msk->pm.local_addr_used == 0
WARNING: net/mptcp/pm_kernel.c:1071 at __mark_subflow_endp_available net/mptcp/pm_kernel.c:1071 [inline], CPU#1: syz.2.17/961
WARNING: net/mptcp/pm_kernel.c:1071 at mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_kernel.c:1103 [inline], CPU#1: syz.2.17/961
WARNING: net/mptcp/pm_kernel.c:1071 at mptcp_pm_nl_del_addr_doit+0x81d/0x8f0 net/mptcp/pm_kernel.c:1210, CPU#1: syz.2.17/961
Modules linked in:
CPU: 1 UID: 0 PID: 961 Comm: syz.2.17 Not tainted 6.19.0-08368-gfafda3b4b06b #22 PREEMPT(full)
Hardware name: QEMU Ubuntu 25.10 PC v2 (i440FX + PIIX, + 10.1 machine, 1996), BIOS 1.17.0-debian-1.17.0-1build1 04/01/2014
RIP: 0010:__mark_subflow_endp_available net/mptcp/pm_kernel.c:1071 [inline]
RIP: 0010:mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_kernel.c:1103 [inline]
RIP: 0010:mptcp_pm_nl_del_addr_doit+0x81d/0x8f0 net/mptcp/pm_kernel.c:1210
Code: 89 c5 e8 46 30 6f fe e9 21 fd ff ff 49 83 ed 80 e8 38 30 6f fe 4c 89 ef be 03 00 00 00 e8 db 49 df fe eb ac e8 24 30 6f fe 90 <0f> 0b 90 e9 1d ff ff ff e8 16 30 6f fe eb 05 e8 0f 30 6f fe e8 9a
RSP: 0018:ffffc90001663880 EFLAGS: 00010293
RAX: ffffffff82de1a6c RBX: 0000000000000000 RCX: ffff88800722b500
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880158b22d0 R08: 0000000000010425 R09: ffffffffffffffff
R10: ffffffff82de18ba R11: 0000000000000000 R12: ffff88800641a640
R13: ffff8880158b1880 R14: ffff88801ec3c900 R15: ffff88800641a650
FS: 00005555722c3500(0000) GS:ffff8880f909d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f66346e0f60 CR3: 000000001607c000 CR4: 0000000000350ef0
Call Trace:
<TASK>
genl_family_rcv_msg_doit+0x117/0x180 net/netlink/genetlink.c:1115
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x3a8/0x3f0 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x16d/0x240 net/netlink/af_netlink.c:2550
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x3e9/0x4c0 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x4aa/0x5b0 net/netlink/af_netlink.c:1894
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg+0xc9/0xf0 net/socket.c:742
____sys_sendmsg+0x272/0x3b0 net/socket.c:2592
___sys_sendmsg+0x2de/0x320 net/socket.c:2646
__sys_sendmsg net/socket.c:2678 [inline]
__do_sys_sendmsg net/socket.c:2683 [inline]
__se_sys_sendmsg net/socket.c:2681 [inline]
__x64_sys_sendmsg+0x110/0x1a0 net/socket.c:2681
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x143/0x440 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f66346f826d
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc83d8bdc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f6634985fa0 RCX: 00007f66346f826d
RDX: 00000000040000b0 RSI: 0000200000000740 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6634985fa8
R13: 00007f6634985fac R14: 0000000000000000 R15: 0000000000001770
</TASK>
The actions that caused that seem to be:
- Set the MPTCP subflows limit to 0
- Create an MPTCP endpoint with both the 'signal' and 'subflow' flags
- Create a new MPTCP connection from a different address: an ADD_ADDR
linked to the MPTCP endpoint will be sent ('signal' flag), but no
subflows is initiated ('subflow' flag)
- Remove the MPTCP endpoint
---truncated---
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d93cf38fad9f66397093432b8917971a92ee0146 Version: 64815ba15880ce5f99df075fa4104fef170ac7e5 Version: 85df533a787bf07bf4367ce2a02b822ff1fba1a3 Version: 85df533a787bf07bf4367ce2a02b822ff1fba1a3 Version: 85df533a787bf07bf4367ce2a02b822ff1fba1a3 Version: 85df533a787bf07bf4367ce2a02b822ff1fba1a3 Version: 0f21cc29bc13e86512621727a4388c8a7ad2716b Version: 6.1.106 ≤ Version: 6.6.46 ≤ Version: 6.10.5 ≤ |
||
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: in-kernel: always mark signal+subflow endp as used\n\nSyzkaller managed to find a combination of actions that was generating\nthis warning:\n\n msk-\u003epm.local_addr_used == 0\n WARNING: net/mptcp/pm_kernel.c:1071 at __mark_subflow_endp_available net/mptcp/pm_kernel.c:1071 [inline], CPU#1: syz.2.17/961\n WARNING: net/mptcp/pm_kernel.c:1071 at mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_kernel.c:1103 [inline], CPU#1: syz.2.17/961\n WARNING: net/mptcp/pm_kernel.c:1071 at mptcp_pm_nl_del_addr_doit+0x81d/0x8f0 net/mptcp/pm_kernel.c:1210, CPU#1: syz.2.17/961\n Modules linked in:\n CPU: 1 UID: 0 PID: 961 Comm: syz.2.17 Not tainted 6.19.0-08368-gfafda3b4b06b #22 PREEMPT(full)\n Hardware name: QEMU Ubuntu 25.10 PC v2 (i440FX + PIIX, + 10.1 machine, 1996), BIOS 1.17.0-debian-1.17.0-1build1 04/01/2014\n RIP: 0010:__mark_subflow_endp_available net/mptcp/pm_kernel.c:1071 [inline]\n RIP: 0010:mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_kernel.c:1103 [inline]\n RIP: 0010:mptcp_pm_nl_del_addr_doit+0x81d/0x8f0 net/mptcp/pm_kernel.c:1210\n Code: 89 c5 e8 46 30 6f fe e9 21 fd ff ff 49 83 ed 80 e8 38 30 6f fe 4c 89 ef be 03 00 00 00 e8 db 49 df fe eb ac e8 24 30 6f fe 90 \u003c0f\u003e 0b 90 e9 1d ff ff ff e8 16 30 6f fe eb 05 e8 0f 30 6f fe e8 9a\n RSP: 0018:ffffc90001663880 EFLAGS: 00010293\n RAX: ffffffff82de1a6c RBX: 0000000000000000 RCX: ffff88800722b500\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ffff8880158b22d0 R08: 0000000000010425 R09: ffffffffffffffff\n R10: ffffffff82de18ba R11: 0000000000000000 R12: ffff88800641a640\n R13: ffff8880158b1880 R14: ffff88801ec3c900 R15: ffff88800641a650\n FS: 00005555722c3500(0000) GS:ffff8880f909d000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f66346e0f60 CR3: 000000001607c000 CR4: 0000000000350ef0\n Call Trace:\n \u003cTASK\u003e\n genl_family_rcv_msg_doit+0x117/0x180 net/netlink/genetlink.c:1115\n genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]\n genl_rcv_msg+0x3a8/0x3f0 net/netlink/genetlink.c:1210\n netlink_rcv_skb+0x16d/0x240 net/netlink/af_netlink.c:2550\n genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219\n netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]\n netlink_unicast+0x3e9/0x4c0 net/netlink/af_netlink.c:1344\n netlink_sendmsg+0x4aa/0x5b0 net/netlink/af_netlink.c:1894\n sock_sendmsg_nosec net/socket.c:727 [inline]\n __sock_sendmsg+0xc9/0xf0 net/socket.c:742\n ____sys_sendmsg+0x272/0x3b0 net/socket.c:2592\n ___sys_sendmsg+0x2de/0x320 net/socket.c:2646\n __sys_sendmsg net/socket.c:2678 [inline]\n __do_sys_sendmsg net/socket.c:2683 [inline]\n __se_sys_sendmsg net/socket.c:2681 [inline]\n __x64_sys_sendmsg+0x110/0x1a0 net/socket.c:2681\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0x143/0x440 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7f66346f826d\n Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48\n RSP: 002b:00007ffc83d8bdc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n RAX: ffffffffffffffda RBX: 00007f6634985fa0 RCX: 00007f66346f826d\n RDX: 00000000040000b0 RSI: 0000200000000740 RDI: 0000000000000007\n RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6634985fa8\n R13: 00007f6634985fac R14: 0000000000000000 R15: 0000000000001770\n \u003c/TASK\u003e\n\nThe actions that caused that seem to be:\n\n - Set the MPTCP subflows limit to 0\n - Create an MPTCP endpoint with both the \u0027signal\u0027 and \u0027subflow\u0027 flags\n - Create a new MPTCP connection from a different address: an ADD_ADDR\n linked to the MPTCP endpoint will be sent (\u0027signal\u0027 flag), but no\n subflows is initiated (\u0027subflow\u0027 flag)\n - Remove the MPTCP endpoint\n\n---truncated---"
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CVE-2025-37945 (GCVE-0-2025-37945)
Vulnerability from cvelistv5
Published
2025-05-20 15:58
Modified
2026-07-14 12:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY
DSA has 2 kinds of drivers:
1. Those who call dsa_switch_suspend() and dsa_switch_resume() from
their device PM ops: qca8k-8xxx, bcm_sf2, microchip ksz
2. Those who don't: all others. The above methods should be optional.
For type 1, dsa_switch_suspend() calls dsa_user_suspend() -> phylink_stop(),
and dsa_switch_resume() calls dsa_user_resume() -> phylink_start().
These seem good candidates for setting mac_managed_pm = true because
that is essentially its definition [1], but that does not seem to be the
biggest problem for now, and is not what this change focuses on.
Talking strictly about the 2nd category of DSA drivers here (which
do not have MAC managed PM, meaning that for their attached PHYs,
mdio_bus_phy_suspend() and mdio_bus_phy_resume() should run in full),
I have noticed that the following warning from mdio_bus_phy_resume() is
triggered:
WARN_ON(phydev->state != PHY_HALTED && phydev->state != PHY_READY &&
phydev->state != PHY_UP);
because the PHY state machine is running.
It's running as a result of a previous dsa_user_open() -> ... ->
phylink_start() -> phy_start() having been initiated by the user.
The previous mdio_bus_phy_suspend() was supposed to have called
phy_stop_machine(), but it didn't. So this is why the PHY is in state
PHY_NOLINK by the time mdio_bus_phy_resume() runs.
mdio_bus_phy_suspend() did not call phy_stop_machine() because for
phylink, the phydev->adjust_link function pointer is NULL. This seems a
technicality introduced by commit fddd91016d16 ("phylib: fix PAL state
machine restart on resume"). That commit was written before phylink
existed, and was intended to avoid crashing with consumer drivers which
don't use the PHY state machine - phylink always does, when using a PHY.
But phylink itself has historically not been developed with
suspend/resume in mind, and apparently not tested too much in that
scenario, allowing this bug to exist unnoticed for so long. Plus, prior
to the WARN_ON(), it would have likely been invisible.
This issue is not in fact restricted to type 2 DSA drivers (according to
the above ad-hoc classification), but can be extrapolated to any MAC
driver with phylink and MDIO-bus-managed PHY PM ops. DSA is just where
the issue was reported. Assuming mac_managed_pm is set correctly, a
quick search indicates the following other drivers might be affected:
$ grep -Zlr PHYLINK_NETDEV drivers/ | xargs -0 grep -L mac_managed_pm
drivers/net/ethernet/atheros/ag71xx.c
drivers/net/ethernet/microchip/sparx5/sparx5_main.c
drivers/net/ethernet/microchip/lan966x/lan966x_main.c
drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
drivers/net/ethernet/freescale/ucc_geth.c
drivers/net/ethernet/freescale/enetc/enetc_pf_common.c
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
drivers/net/ethernet/marvell/mvneta.c
drivers/net/ethernet/marvell/prestera/prestera_main.c
drivers/net/ethernet/mediatek/mtk_eth_soc.c
drivers/net/ethernet/altera/altera_tse_main.c
drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c
drivers/net/ethernet/meta/fbnic/fbnic_phylink.c
drivers/net/ethernet/tehuti/tn40_phy.c
drivers/net/ethernet/mscc/ocelot_net.c
Make the existing conditions dependent on the PHY device having a
phydev->phy_link_change() implementation equal to the default
phy_link_change() provided by phylib. Otherwise, we implicitly know that
the phydev has the phylink-provided phylink_phy_change() callback, and
when phylink is used, the PHY state machine always needs to be stopped/
started on the suspend/resume path. The code is structured as such that
if phydev->phy_link_change() is absent, it is a matter of time until the
kernel will crash - no need to further complicate the test.
Thus, for the situation where the PM is not managed b
---truncated---
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 744d23c71af39c7dc77ac7c3cac87ae86a181a85 Version: 744d23c71af39c7dc77ac7c3cac87ae86a181a85 Version: 744d23c71af39c7dc77ac7c3cac87ae86a181a85 Version: 744d23c71af39c7dc77ac7c3cac87ae86a181a85 Version: 744d23c71af39c7dc77ac7c3cac87ae86a181a85 Version: 744d23c71af39c7dc77ac7c3cac87ae86a181a85 Version: 47ac7b2f6a1ffef76e55a9ec146881a36673284b Version: 7dc0ed411de3450e75b2a9600b5742cbf0908167 Version: 5.15.63 ≤ Version: 5.19.4 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY\n\nDSA has 2 kinds of drivers:\n\n1. Those who call dsa_switch_suspend() and dsa_switch_resume() from\n their device PM ops: qca8k-8xxx, bcm_sf2, microchip ksz\n2. Those who don\u0027t: all others. The above methods should be optional.\n\nFor type 1, dsa_switch_suspend() calls dsa_user_suspend() -\u003e phylink_stop(),\nand dsa_switch_resume() calls dsa_user_resume() -\u003e phylink_start().\nThese seem good candidates for setting mac_managed_pm = true because\nthat is essentially its definition [1], but that does not seem to be the\nbiggest problem for now, and is not what this change focuses on.\n\nTalking strictly about the 2nd category of DSA drivers here (which\ndo not have MAC managed PM, meaning that for their attached PHYs,\nmdio_bus_phy_suspend() and mdio_bus_phy_resume() should run in full),\nI have noticed that the following warning from mdio_bus_phy_resume() is\ntriggered:\n\n\tWARN_ON(phydev-\u003estate != PHY_HALTED \u0026\u0026 phydev-\u003estate != PHY_READY \u0026\u0026\n\t\tphydev-\u003estate != PHY_UP);\n\nbecause the PHY state machine is running.\n\nIt\u0027s running as a result of a previous dsa_user_open() -\u003e ... -\u003e\nphylink_start() -\u003e phy_start() having been initiated by the user.\n\nThe previous mdio_bus_phy_suspend() was supposed to have called\nphy_stop_machine(), but it didn\u0027t. So this is why the PHY is in state\nPHY_NOLINK by the time mdio_bus_phy_resume() runs.\n\nmdio_bus_phy_suspend() did not call phy_stop_machine() because for\nphylink, the phydev-\u003eadjust_link function pointer is NULL. This seems a\ntechnicality introduced by commit fddd91016d16 (\"phylib: fix PAL state\nmachine restart on resume\"). That commit was written before phylink\nexisted, and was intended to avoid crashing with consumer drivers which\ndon\u0027t use the PHY state machine - phylink always does, when using a PHY.\nBut phylink itself has historically not been developed with\nsuspend/resume in mind, and apparently not tested too much in that\nscenario, allowing this bug to exist unnoticed for so long. Plus, prior\nto the WARN_ON(), it would have likely been invisible.\n\nThis issue is not in fact restricted to type 2 DSA drivers (according to\nthe above ad-hoc classification), but can be extrapolated to any MAC\ndriver with phylink and MDIO-bus-managed PHY PM ops. DSA is just where\nthe issue was reported. Assuming mac_managed_pm is set correctly, a\nquick search indicates the following other drivers might be affected:\n\n$ grep -Zlr PHYLINK_NETDEV drivers/ | xargs -0 grep -L mac_managed_pm\ndrivers/net/ethernet/atheros/ag71xx.c\ndrivers/net/ethernet/microchip/sparx5/sparx5_main.c\ndrivers/net/ethernet/microchip/lan966x/lan966x_main.c\ndrivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c\ndrivers/net/ethernet/freescale/fs_enet/fs_enet-main.c\ndrivers/net/ethernet/freescale/dpaa/dpaa_eth.c\ndrivers/net/ethernet/freescale/ucc_geth.c\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c\ndrivers/net/ethernet/marvell/mvpp2/mvpp2_main.c\ndrivers/net/ethernet/marvell/mvneta.c\ndrivers/net/ethernet/marvell/prestera/prestera_main.c\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c\ndrivers/net/ethernet/altera/altera_tse_main.c\ndrivers/net/ethernet/wangxun/txgbe/txgbe_phy.c\ndrivers/net/ethernet/meta/fbnic/fbnic_phylink.c\ndrivers/net/ethernet/tehuti/tn40_phy.c\ndrivers/net/ethernet/mscc/ocelot_net.c\n\nMake the existing conditions dependent on the PHY device having a\nphydev-\u003ephy_link_change() implementation equal to the default\nphy_link_change() provided by phylib. Otherwise, we implicitly know that\nthe phydev has the phylink-provided phylink_phy_change() callback, and\nwhen phylink is used, the PHY state machine always needs to be stopped/\nstarted on the suspend/resume path. The code is structured as such that\nif phydev-\u003ephy_link_change() is absent, it is a matter of time until the\nkernel will crash - no need to further complicate the test.\n\nThus, for the situation where the PM is not managed b\n---truncated---"
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CVE-2026-46333 (GCVE-0-2026-46333)
Vulnerability from cvelistv5
Published
2026-05-15 12:58
Modified
2026-08-24 12:06
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ptrace: slightly saner 'get_dumpable()' logic
The 'dumpability' of a task is fundamentally about the memory image of
the task - the concept comes from whether it can core dump or not - and
makes no sense when you don't have an associated mm.
And almost all users do in fact use it only for the case where the task
has a mm pointer.
But we have one odd special case: ptrace_may_access() uses 'dumpable' to
check various other things entirely independently of the MM (typically
explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for
threads that no longer have a VM (and maybe never did, like most kernel
threads).
It's not what this flag was designed for, but it is what it is.
The ptrace code does check that the uid/gid matches, so you do have to
be uid-0 to see kernel thread details, but this means that the
traditional "drop capabilities" model doesn't make any difference for
this all.
Make it all make a *bit* more sense by saying that if you don't have a
MM pointer, we'll use a cached "last dumpability" flag if the thread
ever had a MM (it will be zero for kernel threads since it is never
set), and require a proper CAP_SYS_PTRACE capability to override.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 Version: d5b3e840dbf6dd2c0f30b5982b6f5ecd49e46b12 Version: 03eed7afbc09e061f66b448daf7863174c3dc3f3 Version: e45692fa1aea06676449b63ef3c2b6e1e72b7578 Version: 694a95fa6dae4991f16cda333d897ea063021fed Version: 3.16.52 ≤ Version: 4.4.40 ≤ Version: 4.8.16 ≤ Version: 4.9.1 ≤ |
||
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CVE-2025-38725 (GCVE-0-2025-38725)
Vulnerability from cvelistv5
Published
2025-09-04 15:33
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: usb: asix_devices: add phy_mask for ax88772 mdio bus
Without setting phy_mask for ax88772 mdio bus, current driver may create
at most 32 mdio phy devices with phy address range from 0x00 ~ 0x1f.
DLink DUB-E100 H/W Ver B1 is such a device. However, only one main phy
device will bind to net phy driver. This is creating issue during system
suspend/resume since phy_polling_mode() in phy_state_machine() will
directly deference member of phydev->drv for non-main phy devices. Then
NULL pointer dereference issue will occur. Due to only external phy or
internal phy is necessary, add phy_mask for ax88772 mdio bus to workarnoud
the issue.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e532a096be0e5e570b383e71d4560e7f04384e0f Version: e532a096be0e5e570b383e71d4560e7f04384e0f Version: e532a096be0e5e570b383e71d4560e7f04384e0f Version: e532a096be0e5e570b383e71d4560e7f04384e0f Version: e532a096be0e5e570b383e71d4560e7f04384e0f Version: e532a096be0e5e570b383e71d4560e7f04384e0f Version: e532a096be0e5e570b383e71d4560e7f04384e0f |
||
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CVE-2025-68337 (GCVE-0-2025-68337)
Vulnerability from cvelistv5
Published
2025-12-22 16:14
Modified
2026-08-05 12:10
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
jbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted
There's issue when file system corrupted:
------------[ cut here ]------------
kernel BUG at fs/jbd2/transaction.c:1289!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 5 UID: 0 PID: 2031 Comm: mkdir Not tainted 6.18.0-rc1-next
RIP: 0010:jbd2_journal_get_create_access+0x3b6/0x4d0
RSP: 0018:ffff888117aafa30 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff88811a86b000 RCX: ffffffff89a63534
RDX: 1ffff110200ec602 RSI: 0000000000000004 RDI: ffff888100763010
RBP: ffff888100763000 R08: 0000000000000001 R09: ffff888100763028
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88812c432000 R14: ffff88812c608000 R15: ffff888120bfc000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91d6970c99 CR3: 00000001159c4000 CR4: 00000000000006f0
Call Trace:
<TASK>
__ext4_journal_get_create_access+0x42/0x170
ext4_getblk+0x319/0x6f0
ext4_bread+0x11/0x100
ext4_append+0x1e6/0x4a0
ext4_init_new_dir+0x145/0x1d0
ext4_mkdir+0x326/0x920
vfs_mkdir+0x45c/0x740
do_mkdirat+0x234/0x2f0
__x64_sys_mkdir+0xd6/0x120
do_syscall_64+0x5f/0xfa0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The above issue occurs with us in errors=continue mode when accompanied by
storage failures. There have been many inconsistencies in the file system
data.
In the case of file system data inconsistency, for example, if the block
bitmap of a referenced block is not set, it can lead to the situation where
a block being committed is allocated and used again. As a result, the
following condition will not be satisfied then trigger BUG_ON. Of course,
it is entirely possible to construct a problematic image that can trigger
this BUG_ON through specific operations. In fact, I have constructed such
an image and easily reproduced this issue.
Therefore, J_ASSERT() holds true only under ideal conditions, but it may
not necessarily be satisfied in exceptional scenarios. Using J_ASSERT()
directly in abnormal situations would cause the system to crash, which is
clearly not what we want. So here we directly trigger a JBD abort instead
of immediately invoking BUG_ON.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 470decc613ab2048b619a01028072d932d9086ee Version: 470decc613ab2048b619a01028072d932d9086ee Version: 470decc613ab2048b619a01028072d932d9086ee Version: 470decc613ab2048b619a01028072d932d9086ee Version: 470decc613ab2048b619a01028072d932d9086ee Version: 470decc613ab2048b619a01028072d932d9086ee Version: 470decc613ab2048b619a01028072d932d9086ee Version: 470decc613ab2048b619a01028072d932d9086ee |
||
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CVE-2024-49998 (GCVE-0-2024-49998)
Vulnerability from cvelistv5
Published
2024-10-21 18:02
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: improve shutdown sequence
Alexander Sverdlin presents 2 problems during shutdown with the
lan9303 driver. One is specific to lan9303 and the other just happens
to reproduce there.
The first problem is that lan9303 is unique among DSA drivers in that it
calls dev_get_drvdata() at "arbitrary runtime" (not probe, not shutdown,
not remove):
phy_state_machine()
-> ...
-> dsa_user_phy_read()
-> ds->ops->phy_read()
-> lan9303_phy_read()
-> chip->ops->phy_read()
-> lan9303_mdio_phy_read()
-> dev_get_drvdata()
But we never stop the phy_state_machine(), so it may continue to run
after dsa_switch_shutdown(). Our common pattern in all DSA drivers is
to set drvdata to NULL to suppress the remove() method that may come
afterwards. But in this case it will result in an NPD.
The second problem is that the way in which we set
dp->conduit->dsa_ptr = NULL; is concurrent with receive packet
processing. dsa_switch_rcv() checks once whether dev->dsa_ptr is NULL,
but afterwards, rather than continuing to use that non-NULL value,
dev->dsa_ptr is dereferenced again and again without NULL checks:
dsa_conduit_find_user() and many other places. In between dereferences,
there is no locking to ensure that what was valid once continues to be
valid.
Both problems have the common aspect that closing the conduit interface
solves them.
In the first case, dev_close(conduit) triggers the NETDEV_GOING_DOWN
event in dsa_user_netdevice_event() which closes user ports as well.
dsa_port_disable_rt() calls phylink_stop(), which synchronously stops
the phylink state machine, and ds->ops->phy_read() will thus no longer
call into the driver after this point.
In the second case, dev_close(conduit) should do this, as per
Documentation/networking/driver.rst:
| Quiescence
| ----------
|
| After the ndo_stop routine has been called, the hardware must
| not receive or transmit any data. All in flight packets must
| be aborted. If necessary, poll or wait for completion of
| any reset commands.
So it should be sufficient to ensure that later, when we zeroize
conduit->dsa_ptr, there will be no concurrent dsa_switch_rcv() call
on this conduit.
The addition of the netif_device_detach() function is to ensure that
ioctls, rtnetlinks and ethtool requests on the user ports no longer
propagate down to the driver - we're no longer prepared to handle them.
The race condition actually did not exist when commit 0650bf52b31f
("net: dsa: be compatible with masters which unregister on shutdown")
first introduced dsa_switch_shutdown(). It was created later, when we
stopped unregistering the user interfaces from a bad spot, and we just
replaced that sequence with a racy zeroization of conduit->dsa_ptr
(one which doesn't ensure that the interfaces aren't up).
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-71197 (GCVE-0-2025-71197)
Vulnerability from cvelistv5
Published
2026-02-04 16:07
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
w1: therm: Fix off-by-one buffer overflow in alarms_store
The sysfs buffer passed to alarms_store() is allocated with 'size + 1'
bytes and a NUL terminator is appended. However, the 'size' argument
does not account for this extra byte. The original code then allocated
'size' bytes and used strcpy() to copy 'buf', which always writes one
byte past the allocated buffer since strcpy() copies until the NUL
terminator at index 'size'.
Fix this by parsing the 'buf' parameter directly using simple_strtoll()
without allocating any intermediate memory or string copying. This
removes the overflow while simplifying the code.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
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CVE-2026-23343 (GCVE-0-2026-23343)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
xdp: produce a warning when calculated tailroom is negative
Many ethernet drivers report xdp Rx queue frag size as being the same as
DMA write size. However, the only user of this field, namely
bpf_xdp_frags_increase_tail(), clearly expects a truesize.
Such difference leads to unspecific memory corruption issues under certain
circumstances, e.g. in ixgbevf maximum DMA write size is 3 KB, so when
running xskxceiver's XDP_ADJUST_TAIL_GROW_MULTI_BUFF, 6K packet fully uses
all DMA-writable space in 2 buffers. This would be fine, if only
rxq->frag_size was properly set to 4K, but value of 3K results in a
negative tailroom, because there is a non-zero page offset.
We are supposed to return -EINVAL and be done with it in such case, but due
to tailroom being stored as an unsigned int, it is reported to be somewhere
near UINT_MAX, resulting in a tail being grown, even if the requested
offset is too much (it is around 2K in the abovementioned test). This later
leads to all kinds of unspecific calltraces.
[ 7340.337579] xskxceiver[1440]: segfault at 1da718 ip 00007f4161aeac9d sp 00007f41615a6a00 error 6
[ 7340.338040] xskxceiver[1441]: segfault at 7f410000000b ip 00000000004042b5 sp 00007f415bffecf0 error 4
[ 7340.338179] in libc.so.6[61c9d,7f4161aaf000+160000]
[ 7340.339230] in xskxceiver[42b5,400000+69000]
[ 7340.340300] likely on CPU 6 (core 0, socket 6)
[ 7340.340302] Code: ff ff 01 e9 f4 fe ff ff 0f 1f 44 00 00 4c 39 f0 74 73 31 c0 ba 01 00 00 00 f0 0f b1 17 0f 85 ba 00 00 00 49 8b 87 88 00 00 00 <4c> 89 70 08 eb cc 0f 1f 44 00 00 48 8d bd f0 fe ff ff 89 85 ec fe
[ 7340.340888] likely on CPU 3 (core 0, socket 3)
[ 7340.345088] Code: 00 00 00 ba 00 00 00 00 be 00 00 00 00 89 c7 e8 31 ca ff ff 89 45 ec 8b 45 ec 85 c0 78 07 b8 00 00 00 00 eb 46 e8 0b c8 ff ff <8b> 00 83 f8 69 74 24 e8 ff c7 ff ff 8b 00 83 f8 0b 74 18 e8 f3 c7
[ 7340.404334] Oops: general protection fault, probably for non-canonical address 0x6d255010bdffc: 0000 [#1] SMP NOPTI
[ 7340.405972] CPU: 7 UID: 0 PID: 1439 Comm: xskxceiver Not tainted 6.19.0-rc1+ #21 PREEMPT(lazy)
[ 7340.408006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-5.fc42 04/01/2014
[ 7340.409716] RIP: 0010:lookup_swap_cgroup_id+0x44/0x80
[ 7340.410455] Code: 83 f8 1c 73 39 48 ba ff ff ff ff ff ff ff 03 48 8b 04 c5 20 55 fa bd 48 21 d1 48 89 ca 83 e1 01 48 d1 ea c1 e1 04 48 8d 04 90 <8b> 00 48 83 c4 10 d3 e8 c3 cc cc cc cc 31 c0 e9 98 b7 dd 00 48 89
[ 7340.412787] RSP: 0018:ffffcc5c04f7f6d0 EFLAGS: 00010202
[ 7340.413494] RAX: 0006d255010bdffc RBX: ffff891f477895a8 RCX: 0000000000000010
[ 7340.414431] RDX: 0001c17e3fffffff RSI: 00fa070000000000 RDI: 000382fc7fffffff
[ 7340.415354] RBP: 00fa070000000000 R08: ffffcc5c04f7f8f8 R09: ffffcc5c04f7f7d0
[ 7340.416283] R10: ffff891f4c1a7000 R11: ffffcc5c04f7f9c8 R12: ffffcc5c04f7f7d0
[ 7340.417218] R13: 03ffffffffffffff R14: 00fa06fffffffe00 R15: ffff891f47789500
[ 7340.418229] FS: 0000000000000000(0000) GS:ffff891ffdfaa000(0000) knlGS:0000000000000000
[ 7340.419489] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7340.420286] CR2: 00007f415bfffd58 CR3: 0000000103f03002 CR4: 0000000000772ef0
[ 7340.421237] PKRU: 55555554
[ 7340.421623] Call Trace:
[ 7340.421987] <TASK>
[ 7340.422309] ? softleaf_from_pte+0x77/0xa0
[ 7340.422855] swap_pte_batch+0xa7/0x290
[ 7340.423363] zap_nonpresent_ptes.constprop.0.isra.0+0xd1/0x270
[ 7340.424102] zap_pte_range+0x281/0x580
[ 7340.424607] zap_pmd_range.isra.0+0xc9/0x240
[ 7340.425177] unmap_page_range+0x24d/0x420
[ 7340.425714] unmap_vmas+0xa1/0x180
[ 7340.426185] exit_mmap+0xe1/0x3b0
[ 7340.426644] __mmput+0x41/0x150
[ 7340.427098] exit_mm+0xb1/0x110
[ 7340.427539] do_exit+0x1b2/0x460
[ 7340.427992] do_group_exit+0x2d/0xc0
[ 7340.428477] get_signal+0x79d/0x7e0
[ 7340.428957] arch_do_signal_or_restart+0x34/0x100
[ 7340.429571] exit_to_user_mode_loop+0x8e/0x4c0
[ 7340.430159] do_syscall_64+0x188/
---truncated---
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bf25146a5595269810b1f47d048f114c5ff9f544 Version: bf25146a5595269810b1f47d048f114c5ff9f544 Version: bf25146a5595269810b1f47d048f114c5ff9f544 Version: bf25146a5595269810b1f47d048f114c5ff9f544 Version: bf25146a5595269810b1f47d048f114c5ff9f544 Version: bf25146a5595269810b1f47d048f114c5ff9f544 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxdp: produce a warning when calculated tailroom is negative\n\nMany ethernet drivers report xdp Rx queue frag size as being the same as\nDMA write size. However, the only user of this field, namely\nbpf_xdp_frags_increase_tail(), clearly expects a truesize.\n\nSuch difference leads to unspecific memory corruption issues under certain\ncircumstances, e.g. in ixgbevf maximum DMA write size is 3 KB, so when\nrunning xskxceiver\u0027s XDP_ADJUST_TAIL_GROW_MULTI_BUFF, 6K packet fully uses\nall DMA-writable space in 2 buffers. This would be fine, if only\nrxq-\u003efrag_size was properly set to 4K, but value of 3K results in a\nnegative tailroom, because there is a non-zero page offset.\n\nWe are supposed to return -EINVAL and be done with it in such case, but due\nto tailroom being stored as an unsigned int, it is reported to be somewhere\nnear UINT_MAX, resulting in a tail being grown, even if the requested\noffset is too much (it is around 2K in the abovementioned test). This later\nleads to all kinds of unspecific calltraces.\n\n[ 7340.337579] xskxceiver[1440]: segfault at 1da718 ip 00007f4161aeac9d sp 00007f41615a6a00 error 6\n[ 7340.338040] xskxceiver[1441]: segfault at 7f410000000b ip 00000000004042b5 sp 00007f415bffecf0 error 4\n[ 7340.338179] in libc.so.6[61c9d,7f4161aaf000+160000]\n[ 7340.339230] in xskxceiver[42b5,400000+69000]\n[ 7340.340300] likely on CPU 6 (core 0, socket 6)\n[ 7340.340302] Code: ff ff 01 e9 f4 fe ff ff 0f 1f 44 00 00 4c 39 f0 74 73 31 c0 ba 01 00 00 00 f0 0f b1 17 0f 85 ba 00 00 00 49 8b 87 88 00 00 00 \u003c4c\u003e 89 70 08 eb cc 0f 1f 44 00 00 48 8d bd f0 fe ff ff 89 85 ec fe\n[ 7340.340888] likely on CPU 3 (core 0, socket 3)\n[ 7340.345088] Code: 00 00 00 ba 00 00 00 00 be 00 00 00 00 89 c7 e8 31 ca ff ff 89 45 ec 8b 45 ec 85 c0 78 07 b8 00 00 00 00 eb 46 e8 0b c8 ff ff \u003c8b\u003e 00 83 f8 69 74 24 e8 ff c7 ff ff 8b 00 83 f8 0b 74 18 e8 f3 c7\n[ 7340.404334] Oops: general protection fault, probably for non-canonical address 0x6d255010bdffc: 0000 [#1] SMP NOPTI\n[ 7340.405972] CPU: 7 UID: 0 PID: 1439 Comm: xskxceiver Not tainted 6.19.0-rc1+ #21 PREEMPT(lazy)\n[ 7340.408006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-5.fc42 04/01/2014\n[ 7340.409716] RIP: 0010:lookup_swap_cgroup_id+0x44/0x80\n[ 7340.410455] Code: 83 f8 1c 73 39 48 ba ff ff ff ff ff ff ff 03 48 8b 04 c5 20 55 fa bd 48 21 d1 48 89 ca 83 e1 01 48 d1 ea c1 e1 04 48 8d 04 90 \u003c8b\u003e 00 48 83 c4 10 d3 e8 c3 cc cc cc cc 31 c0 e9 98 b7 dd 00 48 89\n[ 7340.412787] RSP: 0018:ffffcc5c04f7f6d0 EFLAGS: 00010202\n[ 7340.413494] RAX: 0006d255010bdffc RBX: ffff891f477895a8 RCX: 0000000000000010\n[ 7340.414431] RDX: 0001c17e3fffffff RSI: 00fa070000000000 RDI: 000382fc7fffffff\n[ 7340.415354] RBP: 00fa070000000000 R08: ffffcc5c04f7f8f8 R09: ffffcc5c04f7f7d0\n[ 7340.416283] R10: ffff891f4c1a7000 R11: ffffcc5c04f7f9c8 R12: ffffcc5c04f7f7d0\n[ 7340.417218] R13: 03ffffffffffffff R14: 00fa06fffffffe00 R15: ffff891f47789500\n[ 7340.418229] FS: 0000000000000000(0000) GS:ffff891ffdfaa000(0000) knlGS:0000000000000000\n[ 7340.419489] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 7340.420286] CR2: 00007f415bfffd58 CR3: 0000000103f03002 CR4: 0000000000772ef0\n[ 7340.421237] PKRU: 55555554\n[ 7340.421623] Call Trace:\n[ 7340.421987] \u003cTASK\u003e\n[ 7340.422309] ? softleaf_from_pte+0x77/0xa0\n[ 7340.422855] swap_pte_batch+0xa7/0x290\n[ 7340.423363] zap_nonpresent_ptes.constprop.0.isra.0+0xd1/0x270\n[ 7340.424102] zap_pte_range+0x281/0x580\n[ 7340.424607] zap_pmd_range.isra.0+0xc9/0x240\n[ 7340.425177] unmap_page_range+0x24d/0x420\n[ 7340.425714] unmap_vmas+0xa1/0x180\n[ 7340.426185] exit_mmap+0xe1/0x3b0\n[ 7340.426644] __mmput+0x41/0x150\n[ 7340.427098] exit_mm+0xb1/0x110\n[ 7340.427539] do_exit+0x1b2/0x460\n[ 7340.427992] do_group_exit+0x2d/0xc0\n[ 7340.428477] get_signal+0x79d/0x7e0\n[ 7340.428957] arch_do_signal_or_restart+0x34/0x100\n[ 7340.429571] exit_to_user_mode_loop+0x8e/0x4c0\n[ 7340.430159] do_syscall_64+0x188/\n---truncated---"
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"x_generator": {
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CVE-2024-56631 (GCVE-0-2024-56631)
Vulnerability from cvelistv5
Published
2024-12-27 15:02
Modified
2026-08-05 11:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: sg: Fix slab-use-after-free read in sg_release()
Fix a use-after-free bug in sg_release(), detected by syzbot with KASAN:
BUG: KASAN: slab-use-after-free in lock_release+0x151/0xa30
kernel/locking/lockdep.c:5838
__mutex_unlock_slowpath+0xe2/0x750 kernel/locking/mutex.c:912
sg_release+0x1f4/0x2e0 drivers/scsi/sg.c:407
In sg_release(), the function kref_put(&sfp->f_ref, sg_remove_sfp) is
called before releasing the open_rel_lock mutex. The kref_put() call may
decrement the reference count of sfp to zero, triggering its cleanup
through sg_remove_sfp(). This cleanup includes scheduling deferred work
via sg_remove_sfp_usercontext(), which ultimately frees sfp.
After kref_put(), sg_release() continues to unlock open_rel_lock and may
reference sfp or sdp. If sfp has already been freed, this results in a
slab-use-after-free error.
Move the kref_put(&sfp->f_ref, sg_remove_sfp) call after unlocking the
open_rel_lock mutex. This ensures:
- No references to sfp or sdp occur after the reference count is
decremented.
- Cleanup functions such as sg_remove_sfp() and
sg_remove_sfp_usercontext() can safely execute without impacting the
mutex handling in sg_release().
The fix has been tested and validated by syzbot. This patch closes the
bug reported at the following syzkaller link and ensures proper
sequencing of resource cleanup and mutex operations, eliminating the
risk of use-after-free errors in sg_release().
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: cc833acbee9db5ca8c6162b015b4c93863c6f821 Version: cc833acbee9db5ca8c6162b015b4c93863c6f821 Version: cc833acbee9db5ca8c6162b015b4c93863c6f821 Version: cc833acbee9db5ca8c6162b015b4c93863c6f821 Version: cc833acbee9db5ca8c6162b015b4c93863c6f821 Version: cc833acbee9db5ca8c6162b015b4c93863c6f821 Version: cc833acbee9db5ca8c6162b015b4c93863c6f821 Version: 3a27c0defb0315760100f8b1adc7c4acbe04c884 Version: 3.16.85 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: sg: Fix slab-use-after-free read in sg_release()\n\nFix a use-after-free bug in sg_release(), detected by syzbot with KASAN:\n\nBUG: KASAN: slab-use-after-free in lock_release+0x151/0xa30\nkernel/locking/lockdep.c:5838\n__mutex_unlock_slowpath+0xe2/0x750 kernel/locking/mutex.c:912\nsg_release+0x1f4/0x2e0 drivers/scsi/sg.c:407\n\nIn sg_release(), the function kref_put(\u0026sfp-\u003ef_ref, sg_remove_sfp) is\ncalled before releasing the open_rel_lock mutex. The kref_put() call may\ndecrement the reference count of sfp to zero, triggering its cleanup\nthrough sg_remove_sfp(). This cleanup includes scheduling deferred work\nvia sg_remove_sfp_usercontext(), which ultimately frees sfp.\n\nAfter kref_put(), sg_release() continues to unlock open_rel_lock and may\nreference sfp or sdp. If sfp has already been freed, this results in a\nslab-use-after-free error.\n\nMove the kref_put(\u0026sfp-\u003ef_ref, sg_remove_sfp) call after unlocking the\nopen_rel_lock mutex. This ensures:\n\n - No references to sfp or sdp occur after the reference count is\n decremented.\n\n - Cleanup functions such as sg_remove_sfp() and\n sg_remove_sfp_usercontext() can safely execute without impacting the\n mutex handling in sg_release().\n\nThe fix has been tested and validated by syzbot. This patch closes the\nbug reported at the following syzkaller link and ensures proper\nsequencing of resource cleanup and mutex operations, eliminating the\nrisk of use-after-free errors in sg_release()."
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CVE-2024-58020 (GCVE-0-2024-58020)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
HID: multitouch: Add NULL check in mt_input_configured
devm_kasprintf() can return a NULL pointer on failure,but this
returned value in mt_input_configured() is not checked.
Add NULL check in mt_input_configured(), to handle kernel NULL
pointer dereference error.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2026-41989 (GCVE-0-2026-41989)
Vulnerability from cvelistv5
Published
2026-04-23 04:30
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
References
Impacted products
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CVE-2026-31466 (GCVE-0-2026-31466)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/huge_memory: fix folio isn't locked in softleaf_to_folio()
On arm64 server, we found folio that get from migration entry isn't locked
in softleaf_to_folio(). This issue triggers when mTHP splitting and
zap_nonpresent_ptes() races, and the root cause is lack of memory barrier
in softleaf_to_folio(). The race is as follows:
CPU0 CPU1
deferred_split_scan() zap_nonpresent_ptes()
lock folio
split_folio()
unmap_folio()
change ptes to migration entries
__split_folio_to_order() softleaf_to_folio()
set flags(including PG_locked) for tail pages folio = pfn_folio(softleaf_to_pfn(entry))
smp_wmb() VM_WARN_ON_ONCE(!folio_test_locked(folio))
prep_compound_page() for tail pages
In __split_folio_to_order(), smp_wmb() guarantees page flags of tail pages
are visible before the tail page becomes non-compound. smp_wmb() should
be paired with smp_rmb() in softleaf_to_folio(), which is missed. As a
result, if zap_nonpresent_ptes() accesses migration entry that stores tail
pfn, softleaf_to_folio() may see the updated compound_head of tail page
before page->flags.
This issue will trigger VM_WARN_ON_ONCE() in pfn_swap_entry_folio()
because of the race between folio split and zap_nonpresent_ptes()
leading to a folio incorrectly undergoing modification without a folio
lock being held.
This is a BUG_ON() before commit 93976a20345b ("mm: eliminate further
swapops predicates"), which in merged in v6.19-rc1.
To fix it, add missing smp_rmb() if the softleaf entry is migration entry
in softleaf_to_folio() and softleaf_to_page().
[tujinjiang@huawei.com: update function name and comments]
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b Version: e9b61f19858a5d6c42ce2298cf138279375d0d9b |
||
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CVE-2026-43028 (GCVE-0-2026-43028)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-08-05 12:25
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: x_tables: ensure names are nul-terminated
Reject names that lack a \0 character before feeding them
to functions that expect c-strings.
Fixes tag is the most recent commit that needs this change.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 |
||
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CVE-2025-21765 (GCVE-0-2025-21765)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: use RCU protection in ip6_default_advmss()
ip6_default_advmss() needs rcu protection to make
sure the net structure it reads does not disappear.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e Version: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e |
||
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CVE-2026-43038 (GCVE-0-2026-43038)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-08-20 12:31
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()
Sashiko AI-review observed:
In ip6_err_gen_icmpv6_unreach(), the skb is an outer IPv4 ICMP error packet
where its cb contains an IPv4 inet_skb_parm. When skb is cloned into skb2
and passed to icmp6_send(), it uses IP6CB(skb2).
IP6CB interprets the IPv4 inet_skb_parm as an inet6_skb_parm. The cipso
offset in inet_skb_parm.opt directly overlaps with dsthao in inet6_skb_parm
at offset 18.
If an attacker sends a forged ICMPv4 error with a CIPSO IP option, dsthao
would be a non-zero offset. Inside icmp6_send(), mip6_addr_swap() is called
and uses ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO).
This would scan the inner, attacker-controlled IPv6 packet starting at that
offset, potentially returning a fake TLV without checking if the remaining
packet length can hold the full 18-byte struct ipv6_destopt_hao.
Could mip6_addr_swap() then perform a 16-byte swap that extends past the end
of the packet data into skb_shared_info?
Should the cb array also be cleared in ip6_err_gen_icmpv6_unreach() and
ip6ip6_err() to prevent this?
This patch implements the first suggestion.
I am not sure if ip6ip6_err() needs to be changed.
A separate patch would be better anyway.
References
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ca15a078bd907df5fc1c009477869c5cbde3b753 Version: ca15a078bd907df5fc1c009477869c5cbde3b753 Version: ca15a078bd907df5fc1c009477869c5cbde3b753 Version: ca15a078bd907df5fc1c009477869c5cbde3b753 Version: ca15a078bd907df5fc1c009477869c5cbde3b753 Version: ca15a078bd907df5fc1c009477869c5cbde3b753 Version: ca15a078bd907df5fc1c009477869c5cbde3b753 Version: ca15a078bd907df5fc1c009477869c5cbde3b753 |
||
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CVE-2025-39681 (GCVE-0-2025-39681)
Vulnerability from cvelistv5
Published
2025-09-05 17:20
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper
Since
923f3a2b48bd ("x86/resctrl: Query LLC monitoring properties once during boot")
resctrl_cpu_detect() has been moved from common CPU initialization code to
the vendor-specific BSP init helper, while Hygon didn't put that call in their
code.
This triggers a division by zero fault during early booting stage on our
machines with X86_FEATURE_CQM* supported, where get_rdt_mon_resources() tries
to calculate mon_l3_config with uninitialized boot_cpu_data.x86_cache_occ_scale.
Add the missing resctrl_cpu_detect() in the Hygon BSP init helper.
[ bp: Massage commit message. ]
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9 Version: 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9 Version: 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9 Version: 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9 Version: 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9 Version: 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9 Version: 923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9 |
||
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CVE-2026-23290 (GCVE-0-2026-23290)
Vulnerability from cvelistv5
Published
2026-03-25 10:26
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: usb: pegasus: validate USB endpoints
The pegasus driver should validate that the device it is probing has the
proper number and types of USB endpoints it is expecting before it binds
to it. If a malicious device were to not have the same urbs the driver
will crash later on when it blindly accesses these endpoints.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
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CVE-2025-21718 (GCVE-0-2025-21718)
Vulnerability from cvelistv5
Published
2025-02-27 02:07
Modified
2026-08-05 11:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: rose: fix timer races against user threads
Rose timers only acquire the socket spinlock, without
checking if the socket is owned by one user thread.
Add a check and rearm the timers if needed.
BUG: KASAN: slab-use-after-free in rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174
Read of size 2 at addr ffff88802f09b82a by task swapper/0/0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5-syzkaller-00172-gd1bf27c4e176 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x169/0x550 mm/kasan/report.c:489
kasan_report+0x143/0x180 mm/kasan/report.c:602
rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174
call_timer_fn+0x187/0x650 kernel/time/timer.c:1793
expire_timers kernel/time/timer.c:1844 [inline]
__run_timers kernel/time/timer.c:2418 [inline]
__run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430
run_timer_base kernel/time/timer.c:2439 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
</IRQ>
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
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CVE-2026-23304 (GCVE-0-2026-23304)
Vulnerability from cvelistv5
Published
2026-03-25 10:26
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu()
l3mdev_master_dev_rcu() can return NULL when the slave device is being
un-slaved from a VRF. All other callers deal with this, but we lost
the fallback to loopback in ip6_rt_pcpu_alloc() -> ip6_rt_get_dev_rcu()
with commit 4832c30d5458 ("net: ipv6: put host and anycast routes on
device with address").
KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f]
RIP: 0010:ip6_rt_pcpu_alloc (net/ipv6/route.c:1418)
Call Trace:
ip6_pol_route (net/ipv6/route.c:2318)
fib6_rule_lookup (net/ipv6/fib6_rules.c:115)
ip6_route_output_flags (net/ipv6/route.c:2607)
vrf_process_v6_outbound (drivers/net/vrf.c:437)
I was tempted to rework the un-slaving code to clear the flag first
and insert synchronize_rcu() before we remove the upper. But looks like
the explicit fallback to loopback_dev is an established pattern.
And I guess avoiding the synchronize_rcu() is nice, too.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d Version: 4832c30d5458387ff2533ff66fbde26ad8bb5a2d |
||
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CVE-2025-71097 (GCVE-0-2025-71097)
Vulnerability from cvelistv5
Published
2026-01-13 15:34
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv4: Fix reference count leak when using error routes with nexthop objects
When a nexthop object is deleted, it is marked as dead and then
fib_table_flush() is called to flush all the routes that are using the
dead nexthop.
The current logic in fib_table_flush() is to only flush error routes
(e.g., blackhole) when it is called as part of network namespace
dismantle (i.e., with flush_all=true). Therefore, error routes are not
flushed when their nexthop object is deleted:
# ip link add name dummy1 up type dummy
# ip nexthop add id 1 dev dummy1
# ip route add 198.51.100.1/32 nhid 1
# ip route add blackhole 198.51.100.2/32 nhid 1
# ip nexthop del id 1
# ip route show
blackhole 198.51.100.2 nhid 1 dev dummy1
As such, they keep holding a reference on the nexthop object which in
turn holds a reference on the nexthop device, resulting in a reference
count leak:
# ip link del dev dummy1
[ 70.516258] unregister_netdevice: waiting for dummy1 to become free. Usage count = 2
Fix by flushing error routes when their nexthop is marked as dead.
IPv6 does not suffer from this problem.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e Version: 493ced1ac47c48bb86d9d4e8e87df8592be85a0e |
||
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CVE-2026-23019 (GCVE-0-2026-23019)
Vulnerability from cvelistv5
Published
2026-01-31 11:39
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: marvell: prestera: fix NULL dereference on devlink_alloc() failure
devlink_alloc() may return NULL on allocation failure, but
prestera_devlink_alloc() unconditionally calls devlink_priv() on
the returned pointer.
This leads to a NULL pointer dereference if devlink allocation fails.
Add a check for a NULL devlink pointer and return NULL early to avoid
the crash.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
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CVE-2026-31402 (GCVE-0-2026-31402)
Vulnerability from cvelistv5
Published
2026-04-03 15:16
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfsd: fix heap overflow in NFSv4.0 LOCK replay cache
The NFSv4.0 replay cache uses a fixed 112-byte inline buffer
(rp_ibuf[NFSD4_REPLAY_ISIZE]) to store encoded operation responses.
This size was calculated based on OPEN responses and does not account
for LOCK denied responses, which include the conflicting lock owner as
a variable-length field up to 1024 bytes (NFS4_OPAQUE_LIMIT).
When a LOCK operation is denied due to a conflict with an existing lock
that has a large owner, nfsd4_encode_operation() copies the full encoded
response into the undersized replay buffer via read_bytes_from_xdr_buf()
with no bounds check. This results in a slab-out-of-bounds write of up
to 944 bytes past the end of the buffer, corrupting adjacent heap memory.
This can be triggered remotely by an unauthenticated attacker with two
cooperating NFSv4.0 clients: one sets a lock with a large owner string,
then the other requests a conflicting lock to provoke the denial.
We could fix this by increasing NFSD4_REPLAY_ISIZE to allow for a full
opaque, but that would increase the size of every stateowner, when most
lockowners are not that large.
Instead, fix this by checking the encoded response length against
NFSD4_REPLAY_ISIZE before copying into the replay buffer. If the
response is too large, set rp_buflen to 0 to skip caching the replay
payload. The status is still cached, and the client already received the
correct response on the original request.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
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CVE-2025-71098 (GCVE-0-2025-71098)
Vulnerability from cvelistv5
Published
2026-01-13 15:34
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ip6_gre: make ip6gre_header() robust
Over the years, syzbot found many ways to crash the kernel
in ip6gre_header() [1].
This involves team or bonding drivers ability to dynamically
change their dev->needed_headroom and/or dev->hard_header_len
In this particular crash mld_newpack() allocated an skb
with a too small reserve/headroom, and by the time mld_sendpack()
was called, syzbot managed to attach an ip6gre device.
[1]
skbuff: skb_under_panic: text:ffffffff8a1d69a8 len:136 put:40 head:ffff888059bc7000 data:ffff888059bc6fe8 tail:0x70 end:0x6c0 dev:team0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:213 !
<TASK>
skb_under_panic net/core/skbuff.c:223 [inline]
skb_push+0xc3/0xe0 net/core/skbuff.c:2641
ip6gre_header+0xc8/0x790 net/ipv6/ip6_gre.c:1371
dev_hard_header include/linux/netdevice.h:3436 [inline]
neigh_connected_output+0x286/0x460 net/core/neighbour.c:1618
neigh_output include/net/neighbour.h:556 [inline]
ip6_finish_output2+0xfb3/0x1480 net/ipv6/ip6_output.c:136
__ip6_finish_output net/ipv6/ip6_output.c:-1 [inline]
ip6_finish_output+0x234/0x7d0 net/ipv6/ip6_output.c:220
NF_HOOK_COND include/linux/netfilter.h:307 [inline]
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NF_HOOK+0x9e/0x380 include/linux/netfilter.h:318
mld_sendpack+0x8d4/0xe60 net/ipv6/mcast.c:1855
mld_send_cr net/ipv6/mcast.c:2154 [inline]
mld_ifc_work+0x83e/0xd60 net/ipv6/mcast.c:2693
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c12b395a46646bab69089ce7016ac78177f6001f Version: c12b395a46646bab69089ce7016ac78177f6001f Version: c12b395a46646bab69089ce7016ac78177f6001f Version: c12b395a46646bab69089ce7016ac78177f6001f Version: c12b395a46646bab69089ce7016ac78177f6001f Version: c12b395a46646bab69089ce7016ac78177f6001f Version: c12b395a46646bab69089ce7016ac78177f6001f |
||
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CVE-2025-21861 (GCVE-0-2025-21861)
Vulnerability from cvelistv5
Published
2025-03-12 09:42
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize()
If migration succeeded, we called
folio_migrate_flags()->mem_cgroup_migrate() to migrate the memcg from the
old to the new folio. This will set memcg_data of the old folio to 0.
Similarly, if migration failed, memcg_data of the dst folio is left unset.
If we call folio_putback_lru() on such folios (memcg_data == 0), we will
add the folio to be freed to the LRU, making memcg code unhappy. Running
the hmm selftests:
# ./hmm-tests
...
# RUN hmm.hmm_device_private.migrate ...
[ 102.078007][T14893] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x7ff27d200 pfn:0x13cc00
[ 102.079974][T14893] anon flags: 0x17ff00000020018(uptodate|dirty|swapbacked|node=0|zone=2|lastcpupid=0x7ff)
[ 102.082037][T14893] raw: 017ff00000020018 dead000000000100 dead000000000122 ffff8881353896c9
[ 102.083687][T14893] raw: 00000007ff27d200 0000000000000000 00000001ffffffff 0000000000000000
[ 102.085331][T14893] page dumped because: VM_WARN_ON_ONCE_FOLIO(!memcg && !mem_cgroup_disabled())
[ 102.087230][T14893] ------------[ cut here ]------------
[ 102.088279][T14893] WARNING: CPU: 0 PID: 14893 at ./include/linux/memcontrol.h:726 folio_lruvec_lock_irqsave+0x10e/0x170
[ 102.090478][T14893] Modules linked in:
[ 102.091244][T14893] CPU: 0 UID: 0 PID: 14893 Comm: hmm-tests Not tainted 6.13.0-09623-g6c216bc522fd #151
[ 102.093089][T14893] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014
[ 102.094848][T14893] RIP: 0010:folio_lruvec_lock_irqsave+0x10e/0x170
[ 102.096104][T14893] Code: ...
[ 102.099908][T14893] RSP: 0018:ffffc900236c37b0 EFLAGS: 00010293
[ 102.101152][T14893] RAX: 0000000000000000 RBX: ffffea0004f30000 RCX: ffffffff8183f426
[ 102.102684][T14893] RDX: ffff8881063cb880 RSI: ffffffff81b8117f RDI: ffff8881063cb880
[ 102.104227][T14893] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
[ 102.105757][T14893] R10: 0000000000000001 R11: 0000000000000002 R12: ffffc900236c37d8
[ 102.107296][T14893] R13: ffff888277a2bcb0 R14: 000000000000001f R15: 0000000000000000
[ 102.108830][T14893] FS: 00007ff27dbdd740(0000) GS:ffff888277a00000(0000) knlGS:0000000000000000
[ 102.110643][T14893] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 102.111924][T14893] CR2: 00007ff27d400000 CR3: 000000010866e000 CR4: 0000000000750ef0
[ 102.113478][T14893] PKRU: 55555554
[ 102.114172][T14893] Call Trace:
[ 102.114805][T14893] <TASK>
[ 102.115397][T14893] ? folio_lruvec_lock_irqsave+0x10e/0x170
[ 102.116547][T14893] ? __warn.cold+0x110/0x210
[ 102.117461][T14893] ? folio_lruvec_lock_irqsave+0x10e/0x170
[ 102.118667][T14893] ? report_bug+0x1b9/0x320
[ 102.119571][T14893] ? handle_bug+0x54/0x90
[ 102.120494][T14893] ? exc_invalid_op+0x17/0x50
[ 102.121433][T14893] ? asm_exc_invalid_op+0x1a/0x20
[ 102.122435][T14893] ? __wake_up_klogd.part.0+0x76/0xd0
[ 102.123506][T14893] ? dump_page+0x4f/0x60
[ 102.124352][T14893] ? folio_lruvec_lock_irqsave+0x10e/0x170
[ 102.125500][T14893] folio_batch_move_lru+0xd4/0x200
[ 102.126577][T14893] ? __pfx_lru_add+0x10/0x10
[ 102.127505][T14893] __folio_batch_add_and_move+0x391/0x720
[ 102.128633][T14893] ? __pfx_lru_add+0x10/0x10
[ 102.129550][T14893] folio_putback_lru+0x16/0x80
[ 102.130564][T14893] migrate_device_finalize+0x9b/0x530
[ 102.131640][T14893] dmirror_migrate_to_device.constprop.0+0x7c5/0xad0
[ 102.133047][T14893] dmirror_fops_unlocked_ioctl+0x89b/0xc80
Likely, nothing else goes wrong: putting the last folio reference will
remove the folio from the LRU again. So besides memcg complaining, adding
the folio to be freed to the LRU is just an unnecessary step.
The new flow resembles what we have in migrate_folio_move(): add the dst
to the lru, rem
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 Version: 8763cb45ab967a92a5ee49e9c544c0f0ea90e2d6 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/migrate_device: don\u0027t add folio to be freed to LRU in migrate_device_finalize()\n\nIf migration succeeded, we called\nfolio_migrate_flags()-\u003emem_cgroup_migrate() to migrate the memcg from the\nold to the new folio. This will set memcg_data of the old folio to 0.\n\nSimilarly, if migration failed, memcg_data of the dst folio is left unset.\n\nIf we call folio_putback_lru() on such folios (memcg_data == 0), we will\nadd the folio to be freed to the LRU, making memcg code unhappy. Running\nthe hmm selftests:\n\n # ./hmm-tests\n ...\n # RUN hmm.hmm_device_private.migrate ...\n [ 102.078007][T14893] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x7ff27d200 pfn:0x13cc00\n [ 102.079974][T14893] anon flags: 0x17ff00000020018(uptodate|dirty|swapbacked|node=0|zone=2|lastcpupid=0x7ff)\n [ 102.082037][T14893] raw: 017ff00000020018 dead000000000100 dead000000000122 ffff8881353896c9\n [ 102.083687][T14893] raw: 00000007ff27d200 0000000000000000 00000001ffffffff 0000000000000000\n [ 102.085331][T14893] page dumped because: VM_WARN_ON_ONCE_FOLIO(!memcg \u0026\u0026 !mem_cgroup_disabled())\n [ 102.087230][T14893] ------------[ cut here ]------------\n [ 102.088279][T14893] WARNING: CPU: 0 PID: 14893 at ./include/linux/memcontrol.h:726 folio_lruvec_lock_irqsave+0x10e/0x170\n [ 102.090478][T14893] Modules linked in:\n [ 102.091244][T14893] CPU: 0 UID: 0 PID: 14893 Comm: hmm-tests Not tainted 6.13.0-09623-g6c216bc522fd #151\n [ 102.093089][T14893] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014\n [ 102.094848][T14893] RIP: 0010:folio_lruvec_lock_irqsave+0x10e/0x170\n [ 102.096104][T14893] Code: ...\n [ 102.099908][T14893] RSP: 0018:ffffc900236c37b0 EFLAGS: 00010293\n [ 102.101152][T14893] RAX: 0000000000000000 RBX: ffffea0004f30000 RCX: ffffffff8183f426\n [ 102.102684][T14893] RDX: ffff8881063cb880 RSI: ffffffff81b8117f RDI: ffff8881063cb880\n [ 102.104227][T14893] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000\n [ 102.105757][T14893] R10: 0000000000000001 R11: 0000000000000002 R12: ffffc900236c37d8\n [ 102.107296][T14893] R13: ffff888277a2bcb0 R14: 000000000000001f R15: 0000000000000000\n [ 102.108830][T14893] FS: 00007ff27dbdd740(0000) GS:ffff888277a00000(0000) knlGS:0000000000000000\n [ 102.110643][T14893] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n [ 102.111924][T14893] CR2: 00007ff27d400000 CR3: 000000010866e000 CR4: 0000000000750ef0\n [ 102.113478][T14893] PKRU: 55555554\n [ 102.114172][T14893] Call Trace:\n [ 102.114805][T14893] \u003cTASK\u003e\n [ 102.115397][T14893] ? folio_lruvec_lock_irqsave+0x10e/0x170\n [ 102.116547][T14893] ? __warn.cold+0x110/0x210\n [ 102.117461][T14893] ? folio_lruvec_lock_irqsave+0x10e/0x170\n [ 102.118667][T14893] ? report_bug+0x1b9/0x320\n [ 102.119571][T14893] ? handle_bug+0x54/0x90\n [ 102.120494][T14893] ? exc_invalid_op+0x17/0x50\n [ 102.121433][T14893] ? asm_exc_invalid_op+0x1a/0x20\n [ 102.122435][T14893] ? __wake_up_klogd.part.0+0x76/0xd0\n [ 102.123506][T14893] ? dump_page+0x4f/0x60\n [ 102.124352][T14893] ? folio_lruvec_lock_irqsave+0x10e/0x170\n [ 102.125500][T14893] folio_batch_move_lru+0xd4/0x200\n [ 102.126577][T14893] ? __pfx_lru_add+0x10/0x10\n [ 102.127505][T14893] __folio_batch_add_and_move+0x391/0x720\n [ 102.128633][T14893] ? __pfx_lru_add+0x10/0x10\n [ 102.129550][T14893] folio_putback_lru+0x16/0x80\n [ 102.130564][T14893] migrate_device_finalize+0x9b/0x530\n [ 102.131640][T14893] dmirror_migrate_to_device.constprop.0+0x7c5/0xad0\n [ 102.133047][T14893] dmirror_fops_unlocked_ioctl+0x89b/0xc80\n\nLikely, nothing else goes wrong: putting the last folio reference will\nremove the folio from the LRU again. So besides memcg complaining, adding\nthe folio to be freed to the LRU is just an unnecessary step.\n\nThe new flow resembles what we have in migrate_folio_move(): add the dst\nto the lru, rem\n---truncated---"
}
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CVE-2026-23450 (GCVE-0-2026-23450)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock()
Syzkaller reported a panic in smc_tcp_syn_recv_sock() [1].
smc_tcp_syn_recv_sock() is called in the TCP receive path
(softirq) via icsk_af_ops->syn_recv_sock on the clcsock (TCP
listening socket). It reads sk_user_data to get the smc_sock
pointer. However, when the SMC listen socket is being closed
concurrently, smc_close_active() sets clcsock->sk_user_data
to NULL under sk_callback_lock, and then the smc_sock itself
can be freed via sock_put() in smc_release().
This leads to two issues:
1) NULL pointer dereference: sk_user_data is NULL when
accessed.
2) Use-after-free: sk_user_data is read as non-NULL, but the
smc_sock is freed before its fields (e.g., queued_smc_hs,
ori_af_ops) are accessed.
The race window looks like this (the syzkaller crash [1]
triggers via the SYN cookie path: tcp_get_cookie_sock() ->
smc_tcp_syn_recv_sock(), but the normal tcp_check_req() path
has the same race):
CPU A (softirq) CPU B (process ctx)
tcp_v4_rcv()
TCP_NEW_SYN_RECV:
sk = req->rsk_listener
sock_hold(sk)
/* No lock on listener */
smc_close_active():
write_lock_bh(cb_lock)
sk_user_data = NULL
write_unlock_bh(cb_lock)
...
smc_clcsock_release()
sock_put(smc->sk) x2
-> smc_sock freed!
tcp_check_req()
smc_tcp_syn_recv_sock():
smc = user_data(sk)
-> NULL or dangling
smc->queued_smc_hs
-> crash!
Note that the clcsock and smc_sock are two independent objects
with separate refcounts. TCP stack holds a reference on the
clcsock, which keeps it alive, but this does NOT prevent the
smc_sock from being freed.
Fix this by using RCU and refcount_inc_not_zero() to safely
access smc_sock. Since smc_tcp_syn_recv_sock() is called in
the TCP three-way handshake path, taking read_lock_bh on
sk_callback_lock is too heavy and would not survive a SYN
flood attack. Using rcu_read_lock() is much more lightweight.
- Set SOCK_RCU_FREE on the SMC listen socket so that
smc_sock freeing is deferred until after the RCU grace
period. This guarantees the memory is still valid when
accessed inside rcu_read_lock().
- Use rcu_read_lock() to protect reading sk_user_data.
- Use refcount_inc_not_zero(&smc->sk.sk_refcnt) to pin the
smc_sock. If the refcount has already reached zero (close
path completed), it returns false and we bail out safely.
Note: smc_hs_congested() has a similar lockless read of
sk_user_data without rcu_read_lock(), but it only checks for
NULL and accesses the global smc_hs_wq, never dereferencing
any smc_sock field, so it is not affected.
Reproducer was verified with mdelay injection and smc_run,
the issue no longer occurs with this patch applied.
[1] https://syzkaller.appspot.com/bug?extid=827ae2bfb3a3529333e9
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ebfee3e153f67c8b38eb94a7062ee94aa6f92708 Version: 8270d9c21041470f58348248b9d9dcf3bf79592e Version: 8270d9c21041470f58348248b9d9dcf3bf79592e Version: 8270d9c21041470f58348248b9d9dcf3bf79592e Version: 8270d9c21041470f58348248b9d9dcf3bf79592e Version: 8270d9c21041470f58348248b9d9dcf3bf79592e Version: 8270d9c21041470f58348248b9d9dcf3bf79592e Version: 5.15.174 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock()\n\nSyzkaller reported a panic in smc_tcp_syn_recv_sock() [1].\n\nsmc_tcp_syn_recv_sock() is called in the TCP receive path\n(softirq) via icsk_af_ops-\u003esyn_recv_sock on the clcsock (TCP\nlistening socket). It reads sk_user_data to get the smc_sock\npointer. However, when the SMC listen socket is being closed\nconcurrently, smc_close_active() sets clcsock-\u003esk_user_data\nto NULL under sk_callback_lock, and then the smc_sock itself\ncan be freed via sock_put() in smc_release().\n\nThis leads to two issues:\n\n1) NULL pointer dereference: sk_user_data is NULL when\n accessed.\n2) Use-after-free: sk_user_data is read as non-NULL, but the\n smc_sock is freed before its fields (e.g., queued_smc_hs,\n ori_af_ops) are accessed.\n\nThe race window looks like this (the syzkaller crash [1]\ntriggers via the SYN cookie path: tcp_get_cookie_sock() -\u003e\nsmc_tcp_syn_recv_sock(), but the normal tcp_check_req() path\nhas the same race):\n\n CPU A (softirq) CPU B (process ctx)\n\n tcp_v4_rcv()\n TCP_NEW_SYN_RECV:\n sk = req-\u003ersk_listener\n sock_hold(sk)\n /* No lock on listener */\n smc_close_active():\n write_lock_bh(cb_lock)\n sk_user_data = NULL\n write_unlock_bh(cb_lock)\n ...\n smc_clcsock_release()\n sock_put(smc-\u003esk) x2\n -\u003e smc_sock freed!\n tcp_check_req()\n smc_tcp_syn_recv_sock():\n smc = user_data(sk)\n -\u003e NULL or dangling\n smc-\u003equeued_smc_hs\n -\u003e crash!\n\nNote that the clcsock and smc_sock are two independent objects\nwith separate refcounts. TCP stack holds a reference on the\nclcsock, which keeps it alive, but this does NOT prevent the\nsmc_sock from being freed.\n\nFix this by using RCU and refcount_inc_not_zero() to safely\naccess smc_sock. Since smc_tcp_syn_recv_sock() is called in\nthe TCP three-way handshake path, taking read_lock_bh on\nsk_callback_lock is too heavy and would not survive a SYN\nflood attack. Using rcu_read_lock() is much more lightweight.\n\n- Set SOCK_RCU_FREE on the SMC listen socket so that\n smc_sock freeing is deferred until after the RCU grace\n period. This guarantees the memory is still valid when\n accessed inside rcu_read_lock().\n- Use rcu_read_lock() to protect reading sk_user_data.\n- Use refcount_inc_not_zero(\u0026smc-\u003esk.sk_refcnt) to pin the\n smc_sock. If the refcount has already reached zero (close\n path completed), it returns false and we bail out safely.\n\nNote: smc_hs_congested() has a similar lockless read of\nsk_user_data without rcu_read_lock(), but it only checks for\nNULL and accesses the global smc_hs_wq, never dereferencing\nany smc_sock field, so it is not affected.\n\nReproducer was verified with mdelay injection and smc_run,\nthe issue no longer occurs with this patch applied.\n\n[1] https://syzkaller.appspot.com/bug?extid=827ae2bfb3a3529333e9"
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CVE-2025-39931 (GCVE-0-2025-39931)
Vulnerability from cvelistv5
Published
2025-10-04 07:30
Modified
2026-08-05 12:06
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: af_alg - Set merge to zero early in af_alg_sendmsg
If an error causes af_alg_sendmsg to abort, ctx->merge may contain
a garbage value from the previous loop. This may then trigger a
crash on the next entry into af_alg_sendmsg when it attempts to do
a merge that can't be done.
Fix this by setting ctx->merge to zero near the start of the loop.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 Version: 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 |
||
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CVE-2026-27135 (GCVE-0-2026-27135)
Vulnerability from cvelistv5
Published
2026-03-18 17:59
Modified
2026-08-21 12:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the application. They might be called internally by the library when it detects the situation that is subject to connection error. Due to the missing internal state validation, the library keeps reading the rest of the data after one of those APIs is called. Then receiving a malformed frame that causes FRAME_SIZE_ERROR causes assertion failure. nghttp2 v1.68.1 adds missing state validation to avoid assertion failure. No known workarounds are available.
References
| URL | Tags | |
|---|---|---|
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CVE-2025-38232 (GCVE-0-2025-38232)
Vulnerability from cvelistv5
Published
2025-07-04 13:37
Modified
2026-08-05 12:00
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFSD: fix race between nfsd registration and exports_proc
As of now nfsd calls create_proc_exports_entry() at start of init_nfsd
and cleanup by remove_proc_entry() at last of exit_nfsd.
Which causes kernel OOPs if there is race between below 2 operations:
(i) exportfs -r
(ii) mount -t nfsd none /proc/fs/nfsd
for 5.4 kernel ARM64:
CPU 1:
el1_irq+0xbc/0x180
arch_counter_get_cntvct+0x14/0x18
running_clock+0xc/0x18
preempt_count_add+0x88/0x110
prep_new_page+0xb0/0x220
get_page_from_freelist+0x2d8/0x1778
__alloc_pages_nodemask+0x15c/0xef0
__vmalloc_node_range+0x28c/0x478
__vmalloc_node_flags_caller+0x8c/0xb0
kvmalloc_node+0x88/0xe0
nfsd_init_net+0x6c/0x108 [nfsd]
ops_init+0x44/0x170
register_pernet_operations+0x114/0x270
register_pernet_subsys+0x34/0x50
init_nfsd+0xa8/0x718 [nfsd]
do_one_initcall+0x54/0x2e0
CPU 2 :
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010
PC is at : exports_net_open+0x50/0x68 [nfsd]
Call trace:
exports_net_open+0x50/0x68 [nfsd]
exports_proc_open+0x2c/0x38 [nfsd]
proc_reg_open+0xb8/0x198
do_dentry_open+0x1c4/0x418
vfs_open+0x38/0x48
path_openat+0x28c/0xf18
do_filp_open+0x70/0xe8
do_sys_open+0x154/0x248
Sometimes it crashes at exports_net_open() and sometimes cache_seq_next_rcu().
and same is happening on latest 6.14 kernel as well:
[ 0.000000] Linux version 6.14.0-rc5-next-20250304-dirty
...
[ 285.455918] Unable to handle kernel paging request at virtual address 00001f4800001f48
...
[ 285.464902] pc : cache_seq_next_rcu+0x78/0xa4
...
[ 285.469695] Call trace:
[ 285.470083] cache_seq_next_rcu+0x78/0xa4 (P)
[ 285.470488] seq_read+0xe0/0x11c
[ 285.470675] proc_reg_read+0x9c/0xf0
[ 285.470874] vfs_read+0xc4/0x2fc
[ 285.471057] ksys_read+0x6c/0xf4
[ 285.471231] __arm64_sys_read+0x1c/0x28
[ 285.471428] invoke_syscall+0x44/0x100
[ 285.471633] el0_svc_common.constprop.0+0x40/0xe0
[ 285.471870] do_el0_svc_compat+0x1c/0x34
[ 285.472073] el0_svc_compat+0x2c/0x80
[ 285.472265] el0t_32_sync_handler+0x90/0x140
[ 285.472473] el0t_32_sync+0x19c/0x1a0
[ 285.472887] Code: f9400885 93407c23 937d7c27 11000421 (f86378a3)
[ 285.473422] ---[ end trace 0000000000000000 ]---
It reproduced simply with below script:
while [ 1 ]
do
/exportfs -r
done &
while [ 1 ]
do
insmod /nfsd.ko
mount -t nfsd none /proc/fs/nfsd
umount /proc/fs/nfsd
rmmod nfsd
done &
So exporting interfaces to user space shall be done at last and
cleanup at first place.
With change there is no Kernel OOPs.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bd5ae9288d6451bd346a1b4a59d4fe7e62ba29b7 Version: bd5ae9288d6451bd346a1b4a59d4fe7e62ba29b7 Version: bd5ae9288d6451bd346a1b4a59d4fe7e62ba29b7 Version: bd5ae9288d6451bd346a1b4a59d4fe7e62ba29b7 Version: bd5ae9288d6451bd346a1b4a59d4fe7e62ba29b7 Version: bd5ae9288d6451bd346a1b4a59d4fe7e62ba29b7 Version: 8677e99150b0830d29cc1318b4cc559e176940bb Version: 7c7cb07d4affcf41749234fe9dc4d90cd3959e32 Version: 4d41f65efeec0a6da6088341203c81e49ebfcd90 Version: 5.4.102 ≤ Version: 5.10.20 ≤ Version: 5.11.3 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: fix race between nfsd registration and exports_proc\n\nAs of now nfsd calls create_proc_exports_entry() at start of init_nfsd\nand cleanup by remove_proc_entry() at last of exit_nfsd.\n\nWhich causes kernel OOPs if there is race between below 2 operations:\n(i) exportfs -r\n(ii) mount -t nfsd none /proc/fs/nfsd\n\nfor 5.4 kernel ARM64:\n\nCPU 1:\nel1_irq+0xbc/0x180\narch_counter_get_cntvct+0x14/0x18\nrunning_clock+0xc/0x18\npreempt_count_add+0x88/0x110\nprep_new_page+0xb0/0x220\nget_page_from_freelist+0x2d8/0x1778\n__alloc_pages_nodemask+0x15c/0xef0\n__vmalloc_node_range+0x28c/0x478\n__vmalloc_node_flags_caller+0x8c/0xb0\nkvmalloc_node+0x88/0xe0\nnfsd_init_net+0x6c/0x108 [nfsd]\nops_init+0x44/0x170\nregister_pernet_operations+0x114/0x270\nregister_pernet_subsys+0x34/0x50\ninit_nfsd+0xa8/0x718 [nfsd]\ndo_one_initcall+0x54/0x2e0\n\nCPU 2 :\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000010\n\nPC is at : exports_net_open+0x50/0x68 [nfsd]\n\nCall trace:\nexports_net_open+0x50/0x68 [nfsd]\nexports_proc_open+0x2c/0x38 [nfsd]\nproc_reg_open+0xb8/0x198\ndo_dentry_open+0x1c4/0x418\nvfs_open+0x38/0x48\npath_openat+0x28c/0xf18\ndo_filp_open+0x70/0xe8\ndo_sys_open+0x154/0x248\n\nSometimes it crashes at exports_net_open() and sometimes cache_seq_next_rcu().\n\nand same is happening on latest 6.14 kernel as well:\n\n[ 0.000000] Linux version 6.14.0-rc5-next-20250304-dirty\n...\n[ 285.455918] Unable to handle kernel paging request at virtual address 00001f4800001f48\n...\n[ 285.464902] pc : cache_seq_next_rcu+0x78/0xa4\n...\n[ 285.469695] Call trace:\n[ 285.470083] cache_seq_next_rcu+0x78/0xa4 (P)\n[ 285.470488] seq_read+0xe0/0x11c\n[ 285.470675] proc_reg_read+0x9c/0xf0\n[ 285.470874] vfs_read+0xc4/0x2fc\n[ 285.471057] ksys_read+0x6c/0xf4\n[ 285.471231] __arm64_sys_read+0x1c/0x28\n[ 285.471428] invoke_syscall+0x44/0x100\n[ 285.471633] el0_svc_common.constprop.0+0x40/0xe0\n[ 285.471870] do_el0_svc_compat+0x1c/0x34\n[ 285.472073] el0_svc_compat+0x2c/0x80\n[ 285.472265] el0t_32_sync_handler+0x90/0x140\n[ 285.472473] el0t_32_sync+0x19c/0x1a0\n[ 285.472887] Code: f9400885 93407c23 937d7c27 11000421 (f86378a3)\n[ 285.473422] ---[ end trace 0000000000000000 ]---\n\nIt reproduced simply with below script:\nwhile [ 1 ]\ndo\n/exportfs -r\ndone \u0026\n\nwhile [ 1 ]\ndo\ninsmod /nfsd.ko\nmount -t nfsd none /proc/fs/nfsd\numount /proc/fs/nfsd\nrmmod nfsd\ndone \u0026\n\nSo exporting interfaces to user space shall be done at last and\ncleanup at first place.\n\nWith change there is no Kernel OOPs."
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"value": "AV:L - The race is reached through local syscalls only \u2014 `open()`/`read()` on the world-readable `/proc/fs/nfs/exports` racing against nfsd module init/exit; no NFS protocol traffic can trigger `init_nfsd()`/`exit_nfsd()` or the proc-entry path.\nAC:L - The attacker controls both sides of the race: spinning open/read loops on multiple CPUs while triggering nfsd module autoload via `unshare -Urm` + `mount -t nfsd`, and the commit\u0027s own reproducer shows the oops occurs reliably (\"Sometimes it crashes at exports_net_open() and sometimes cache_seq_next_rcu()\").\nPR:L - `proc_create(\"exports\", 0, ...)` defaults to 0444, so any unprivileged local user can open and read the file, and module autoload is reachable from an unprivileged user namespace because `request_module(\"fs-nfsd\")` runs before the `FS_USERNS_MOUNT` capability check in fs/super.c.\nUI:N - The attacker performs all steps itself \u2014 the reader loop and the module-load trigger \u2014 with no action required from any other user or administrator.\nS:U - The corruption and its consequences are confined to the kernel\u0027s own memory and the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - On the unload path the reader holds a freed `cache_detail`, and `__cache_seq_start`/`cache_seq_next` walk freed hash tables whose contents `e_show()`/`svc_export_show()` format into the seq buffer returned to userspace, leaking arbitrary reallocated kernel heap data; the init path additionally dereferences an uninitialized `net_generic` slot as a pointer.\nI:H - This is a use-after-free on `nn-\u003esvc_export_cache` and the `nfsd_net` itself \u2014 the attacker can spray the freed slab and have the kernel treat attacker-controlled bytes as `cache_detail`/`cache_head` fields and list pointers, giving a path to controlled writes and control-flow corruption.\nA:H - The commit documents reproducible kernel oopses on both arm64 5.4 (NULL deref at 0x10 in `exports_net_open`) and 6.14 (paging fault in `cache_seq_next_rcu`), and an unprivileged user can retrigger the crash at will."
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CVE-2026-22982 (GCVE-0-2026-22982)
Vulnerability from cvelistv5
Published
2026-01-23 15:24
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: mscc: ocelot: Fix crash when adding interface under a lag
Commit 15faa1f67ab4 ("lan966x: Fix crash when adding interface under a lag")
fixed a similar issue in the lan966x driver caused by a NULL pointer dereference.
The ocelot_set_aggr_pgids() function in the ocelot driver has similar logic
and is susceptible to the same crash.
This issue specifically affects the ocelot_vsc7514.c frontend, which leaves
unused ports as NULL pointers. The felix_vsc9959.c frontend is unaffected as
it uses the DSA framework which registers all ports.
Fix this by checking if the port pointer is valid before accessing it.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 528d3f190c98c8f7d9581f68db4af021696727b2 Version: 528d3f190c98c8f7d9581f68db4af021696727b2 Version: 528d3f190c98c8f7d9581f68db4af021696727b2 Version: 528d3f190c98c8f7d9581f68db4af021696727b2 Version: 528d3f190c98c8f7d9581f68db4af021696727b2 Version: 528d3f190c98c8f7d9581f68db4af021696727b2 |
||
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CVE-2026-31649 (GCVE-0-2026-31649)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-08-05 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: fix integer underflow in chain mode
The jumbo_frm() chain-mode implementation unconditionally computes
len = nopaged_len - bmax;
where nopaged_len = skb_headlen(skb) (linear bytes only) and bmax is
BUF_SIZE_8KiB or BUF_SIZE_2KiB. However, the caller stmmac_xmit()
decides to invoke jumbo_frm() based on skb->len (total length including
page fragments):
is_jumbo = stmmac_is_jumbo_frm(priv, skb->len, enh_desc);
When a packet has a small linear portion (nopaged_len <= bmax) but a
large total length due to page fragments (skb->len > bmax), the
subtraction wraps as an unsigned integer, producing a huge len value
(~0xFFFFxxxx). This causes the while (len != 0) loop to execute
hundreds of thousands of iterations, passing skb->data + bmax * i
pointers far beyond the skb buffer to dma_map_single(). On IOMMU-less
SoCs (the typical deployment for stmmac), this maps arbitrary kernel
memory to the DMA engine, constituting a kernel memory disclosure and
potential memory corruption from hardware.
Fix this by introducing a buf_len local variable clamped to
min(nopaged_len, bmax). Computing len = nopaged_len - buf_len is then
always safe: it is zero when the linear portion fits within a single
descriptor, causing the while (len != 0) loop to be skipped naturally,
and the fragment loop in stmmac_xmit() handles page fragments afterward.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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CVE-2026-31446 (GCVE-0-2026-31446)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix use-after-free in update_super_work when racing with umount
Commit b98535d09179 ("ext4: fix bug_on in start_this_handle during umount
filesystem") moved ext4_unregister_sysfs() before flushing s_sb_upd_work
to prevent new error work from being queued via /proc/fs/ext4/xx/mb_groups
reads during unmount. However, this introduced a use-after-free because
update_super_work calls ext4_notify_error_sysfs() -> sysfs_notify() which
accesses the kobject's kernfs_node after it has been freed by kobject_del()
in ext4_unregister_sysfs():
update_super_work ext4_put_super
----------------- --------------
ext4_unregister_sysfs(sb)
kobject_del(&sbi->s_kobj)
__kobject_del()
sysfs_remove_dir()
kobj->sd = NULL
sysfs_put(sd)
kernfs_put() // RCU free
ext4_notify_error_sysfs(sbi)
sysfs_notify(&sbi->s_kobj)
kn = kobj->sd // stale pointer
kernfs_get(kn) // UAF on freed kernfs_node
ext4_journal_destroy()
flush_work(&sbi->s_sb_upd_work)
Instead of reordering the teardown sequence, fix this by making
ext4_notify_error_sysfs() detect that sysfs has already been torn down
by checking s_kobj.state_in_sysfs, and skipping the sysfs_notify() call
in that case. A dedicated mutex (s_error_notify_mutex) serializes
ext4_notify_error_sysfs() against kobject_del() in ext4_unregister_sysfs()
to prevent TOCTOU races where the kobject could be deleted between the
state_in_sysfs check and the sysfs_notify() call.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 52c3a04f9ec2a16a4204d6274db338cb8d5b2d74 Version: b98535d091795a79336f520b0708457aacf55c67 Version: b98535d091795a79336f520b0708457aacf55c67 Version: b98535d091795a79336f520b0708457aacf55c67 Version: b98535d091795a79336f520b0708457aacf55c67 Version: b98535d091795a79336f520b0708457aacf55c67 Version: b98535d091795a79336f520b0708457aacf55c67 Version: 585ef03c9e79672781f954daae730dfe24bf3a46 Version: afe490e48d47df1b3f64012835c1bc2f075a8c8b Version: 5.15.38 ≤ Version: 5.10.114 ≤ Version: 5.17.6 ≤ |
||
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CVE-2025-21864 (GCVE-0-2025-21864)
Vulnerability from cvelistv5
Published
2025-03-12 09:42
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tcp: drop secpath at the same time as we currently drop dst
Xiumei reported hitting the WARN in xfrm6_tunnel_net_exit while
running tests that boil down to:
- create a pair of netns
- run a basic TCP test over ipcomp6
- delete the pair of netns
The xfrm_state found on spi_byaddr was not deleted at the time we
delete the netns, because we still have a reference on it. This
lingering reference comes from a secpath (which holds a ref on the
xfrm_state), which is still attached to an skb. This skb is not
leaked, it ends up on sk_receive_queue and then gets defer-free'd by
skb_attempt_defer_free.
The problem happens when we defer freeing an skb (push it on one CPU's
defer_list), and don't flush that list before the netns is deleted. In
that case, we still have a reference on the xfrm_state that we don't
expect at this point.
We already drop the skb's dst in the TCP receive path when it's no
longer needed, so let's also drop the secpath. At this point,
tcp_filter has already called into the LSM hooks that may require the
secpath, so it should not be needed anymore. However, in some of those
places, the MPTCP extension has just been attached to the skb, so we
cannot simply drop all extensions.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-31424 (GCVE-0-2026-31424)
Vulnerability from cvelistv5
Published
2026-04-13 13:40
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARP
Weiming Shi says:
xt_match and xt_target structs registered with NFPROTO_UNSPEC can be
loaded by any protocol family through nft_compat. When such a
match/target sets .hooks to restrict which hooks it may run on, the
bitmask uses NF_INET_* constants. This is only correct for families
whose hook layout matches NF_INET_*: IPv4, IPv6, INET, and bridge
all share the same five hooks (PRE_ROUTING ... POST_ROUTING).
ARP only has three hooks (IN=0, OUT=1, FORWARD=2) with different
semantics. Because NF_ARP_OUT == 1 == NF_INET_LOCAL_IN, the .hooks
validation silently passes for the wrong reasons, allowing matches to
run on ARP chains where the hook assumptions (e.g. state->in being
set on input hooks) do not hold. This leads to NULL pointer
dereferences; xt_devgroup is one concrete example:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000044: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000220-0x0000000000000227]
RIP: 0010:devgroup_mt+0xff/0x350
Call Trace:
<TASK>
nft_match_eval (net/netfilter/nft_compat.c:407)
nft_do_chain (net/netfilter/nf_tables_core.c:285)
nft_do_chain_arp (net/netfilter/nft_chain_filter.c:61)
nf_hook_slow (net/netfilter/core.c:623)
arp_xmit (net/ipv4/arp.c:666)
</TASK>
Kernel panic - not syncing: Fatal exception in interrupt
Fix it by restricting arptables to NFPROTO_ARP extensions only.
Note that arptables-legacy only supports:
- arpt_CLASSIFY
- arpt_mangle
- arpt_MARK
that provide explicit NFPROTO_ARP match/target declarations.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9291747f118d6404e509747b85ff5f6dfec368d2 Version: 9291747f118d6404e509747b85ff5f6dfec368d2 Version: 9291747f118d6404e509747b85ff5f6dfec368d2 Version: 9291747f118d6404e509747b85ff5f6dfec368d2 Version: 9291747f118d6404e509747b85ff5f6dfec368d2 Version: 9291747f118d6404e509747b85ff5f6dfec368d2 Version: 9291747f118d6404e509747b85ff5f6dfec368d2 Version: 9291747f118d6404e509747b85ff5f6dfec368d2 |
||
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CVE-2026-31680 (GCVE-0-2026-31680)
Vulnerability from cvelistv5
Published
2026-04-25 08:46
Modified
2026-08-05 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ipv6: flowlabel: defer exclusive option free until RCU teardown
`ip6fl_seq_show()` walks the global flowlabel hash under the seq-file
RCU read-side lock and prints `fl->opt->opt_nflen` when an option block
is present.
Exclusive flowlabels currently free `fl->opt` as soon as `fl->users`
drops to zero in `fl_release()`. However, the surrounding
`struct ip6_flowlabel` remains visible in the global hash table until
later garbage collection removes it and `fl_free_rcu()` finally tears it
down.
A concurrent `/proc/net/ip6_flowlabel` reader can therefore race that
early `kfree()` and dereference freed option state, triggering a crash
in `ip6fl_seq_show()`.
Fix this by keeping `fl->opt` alive until `fl_free_rcu()`. That matches
the lifetime already required for the enclosing flowlabel while readers
can still reach it under RCU.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 Version: d3aedd5ebd4b0b925b0bcda548066803e1318499 |
||
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CVE-2026-23381 (GCVE-0-2026-23381)
Vulnerability from cvelistv5
Published
2026-03-25 10:28
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled
When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never
initialized because inet6_init() exits before ndisc_init() is called
which initializes it. Then, if neigh_suppress is enabled and an ICMPv6
Neighbor Discovery packet reaches the bridge, br_do_suppress_nd() will
dereference ipv6_stub->nd_tbl which is NULL, passing it to
neigh_lookup(). This causes a kernel NULL pointer dereference.
BUG: kernel NULL pointer dereference, address: 0000000000000268
Oops: 0000 [#1] PREEMPT SMP NOPTI
[...]
RIP: 0010:neigh_lookup+0x16/0xe0
[...]
Call Trace:
<IRQ>
? neigh_lookup+0x16/0xe0
br_do_suppress_nd+0x160/0x290 [bridge]
br_handle_frame_finish+0x500/0x620 [bridge]
br_handle_frame+0x353/0x440 [bridge]
__netif_receive_skb_core.constprop.0+0x298/0x1110
__netif_receive_skb_one_core+0x3d/0xa0
process_backlog+0xa0/0x140
__napi_poll+0x2c/0x170
net_rx_action+0x2c4/0x3a0
handle_softirqs+0xd0/0x270
do_softirq+0x3f/0x60
Fix this by replacing IS_ENABLED(IPV6) call with ipv6_mod_enabled() in
the callers. This is in essence disabling NS/NA suppression when IPv6 is
disabled.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 |
||
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CVE-2026-23378 (GCVE-0-2026-23378)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_ife: Fix metalist update behavior
Whenever an ife action replace changes the metalist, instead of
replacing the old data on the metalist, the current ife code is appending
the new metadata. Aside from being innapropriate behavior, this may lead
to an unbounded addition of metadata to the metalist which might cause an
out of bounds error when running the encode op:
[ 138.423369][ C1] ==================================================================
[ 138.424317][ C1] BUG: KASAN: slab-out-of-bounds in ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.424906][ C1] Write of size 4 at addr ffff8880077f4ffe by task ife_out_out_bou/255
[ 138.425778][ C1] CPU: 1 UID: 0 PID: 255 Comm: ife_out_out_bou Not tainted 7.0.0-rc1-00169-gfbdfa8da05b6 #624 PREEMPT(full)
[ 138.425795][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 138.425800][ C1] Call Trace:
[ 138.425804][ C1] <IRQ>
[ 138.425808][ C1] dump_stack_lvl (lib/dump_stack.c:122)
[ 138.425828][ C1] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)
[ 138.425839][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 138.425844][ C1] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:95 (discriminator 1) ./include/linux/rcupdate.h:975 (discriminator 1) ./include/linux/mmzone.h:2207 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1))
[ 138.425853][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.425859][ C1] kasan_report (mm/kasan/report.c:221 mm/kasan/report.c:597)
[ 138.425868][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.425878][ C1] kasan_check_range (mm/kasan/generic.c:186 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[ 138.425884][ C1] __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[ 138.425889][ C1] ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.425893][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:171)
[ 138.425898][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 138.425903][ C1] ife_encode_meta_u16 (net/sched/act_ife.c:57)
[ 138.425910][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 138.425916][ C1] ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))
[ 138.425921][ C1] ? __pfx_ife_encode_meta_u16 (net/sched/act_ife.c:45)
[ 138.425927][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 138.425931][ C1] tcf_ife_act (net/sched/act_ife.c:847 net/sched/act_ife.c:879)
To solve this issue, fix the replace behavior by adding the metalist to
the ife rcu data structure.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: aa9fd9a325d51fa0b11153b03b8fefff569fa955 Version: aa9fd9a325d51fa0b11153b03b8fefff569fa955 Version: aa9fd9a325d51fa0b11153b03b8fefff569fa955 Version: aa9fd9a325d51fa0b11153b03b8fefff569fa955 Version: aa9fd9a325d51fa0b11153b03b8fefff569fa955 Version: aa9fd9a325d51fa0b11153b03b8fefff569fa955 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_ife: Fix metalist update behavior\n\nWhenever an ife action replace changes the metalist, instead of\nreplacing the old data on the metalist, the current ife code is appending\nthe new metadata. Aside from being innapropriate behavior, this may lead\nto an unbounded addition of metadata to the metalist which might cause an\nout of bounds error when running the encode op:\n\n[ 138.423369][ C1] ==================================================================\n[ 138.424317][ C1] BUG: KASAN: slab-out-of-bounds in ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.424906][ C1] Write of size 4 at addr ffff8880077f4ffe by task ife_out_out_bou/255\n[ 138.425778][ C1] CPU: 1 UID: 0 PID: 255 Comm: ife_out_out_bou Not tainted 7.0.0-rc1-00169-gfbdfa8da05b6 #624 PREEMPT(full)\n[ 138.425795][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n[ 138.425800][ C1] Call Trace:\n[ 138.425804][ C1] \u003cIRQ\u003e\n[ 138.425808][ C1] dump_stack_lvl (lib/dump_stack.c:122)\n[ 138.425828][ C1] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)\n[ 138.425839][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 138.425844][ C1] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:95 (discriminator 1) ./include/linux/rcupdate.h:975 (discriminator 1) ./include/linux/mmzone.h:2207 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1))\n[ 138.425853][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.425859][ C1] kasan_report (mm/kasan/report.c:221 mm/kasan/report.c:597)\n[ 138.425868][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.425878][ C1] kasan_check_range (mm/kasan/generic.c:186 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))\n[ 138.425884][ C1] __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))\n[ 138.425889][ C1] ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.425893][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:171)\n[ 138.425898][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 138.425903][ C1] ife_encode_meta_u16 (net/sched/act_ife.c:57)\n[ 138.425910][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)\n[ 138.425916][ C1] ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))\n[ 138.425921][ C1] ? __pfx_ife_encode_meta_u16 (net/sched/act_ife.c:45)\n[ 138.425927][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 138.425931][ C1] tcf_ife_act (net/sched/act_ife.c:847 net/sched/act_ife.c:879)\n\nTo solve this issue, fix the replace behavior by adding the metalist to\nthe ife rcu data structure."
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CVE-2025-71191 (GCVE-0-2025-71191)
Vulnerability from cvelistv5
Published
2026-01-31 11:42
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: at_hdmac: fix device leak on of_dma_xlate()
Make sure to drop the reference taken when looking up the DMA platform
device during of_dma_xlate() when releasing channel resources.
Note that commit 3832b78b3ec2 ("dmaengine: at_hdmac: add missing
put_device() call in at_dma_xlate()") fixed the leak in a couple of
error paths but the reference is still leaking on successful allocation.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bbe89c8e3d598129b728d1388c3ad9abe4e8e261 Version: bbe89c8e3d598129b728d1388c3ad9abe4e8e261 Version: bbe89c8e3d598129b728d1388c3ad9abe4e8e261 Version: bbe89c8e3d598129b728d1388c3ad9abe4e8e261 Version: bbe89c8e3d598129b728d1388c3ad9abe4e8e261 Version: bbe89c8e3d598129b728d1388c3ad9abe4e8e261 Version: bbe89c8e3d598129b728d1388c3ad9abe4e8e261 |
||
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CVE-2025-39691 (GCVE-0-2025-39691)
Vulnerability from cvelistv5
Published
2025-09-05 17:20
Modified
2026-08-05 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs/buffer: fix use-after-free when call bh_read() helper
There's issue as follows:
BUG: KASAN: stack-out-of-bounds in end_buffer_read_sync+0xe3/0x110
Read of size 8 at addr ffffc9000168f7f8 by task swapper/3/0
CPU: 3 UID: 0 PID: 0 Comm: swapper/3 Not tainted 6.16.0-862.14.0.6.x86_64
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
Call Trace:
<IRQ>
dump_stack_lvl+0x55/0x70
print_address_description.constprop.0+0x2c/0x390
print_report+0xb4/0x270
kasan_report+0xb8/0xf0
end_buffer_read_sync+0xe3/0x110
end_bio_bh_io_sync+0x56/0x80
blk_update_request+0x30a/0x720
scsi_end_request+0x51/0x2b0
scsi_io_completion+0xe3/0x480
? scsi_device_unbusy+0x11e/0x160
blk_complete_reqs+0x7b/0x90
handle_softirqs+0xef/0x370
irq_exit_rcu+0xa5/0xd0
sysvec_apic_timer_interrupt+0x6e/0x90
</IRQ>
Above issue happens when do ntfs3 filesystem mount, issue may happens
as follows:
mount IRQ
ntfs_fill_super
read_cache_page
do_read_cache_folio
filemap_read_folio
mpage_read_folio
do_mpage_readpage
ntfs_get_block_vbo
bh_read
submit_bh
wait_on_buffer(bh);
blk_complete_reqs
scsi_io_completion
scsi_end_request
blk_update_request
end_bio_bh_io_sync
end_buffer_read_sync
__end_buffer_read_notouch
unlock_buffer
wait_on_buffer(bh);--> return will return to caller
put_bh
--> trigger stack-out-of-bounds
In the mpage_read_folio() function, the stack variable 'map_bh' is
passed to ntfs_get_block_vbo(). Once unlock_buffer() unlocks and
wait_on_buffer() returns to continue processing, the stack variable
is likely to be reclaimed. Consequently, during the end_buffer_read_sync()
process, calling put_bh() may result in stack overrun.
If the bh is not allocated on the stack, it belongs to a folio. Freeing
a buffer head which belongs to a folio is done by drop_buffers() which
will fail to free buffers which are still locked. So it is safe to call
put_bh() before __end_buffer_read_notouch().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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"datePublished": "2025-09-05T17:20:57.247Z",
"dateReserved": "2025-04-16T07:20:57.113Z",
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CVE-2025-21867 (GCVE-0-2025-21867)
Vulnerability from cvelistv5
Published
2025-03-27 13:38
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf, test_run: Fix use-after-free issue in eth_skb_pkt_type()
KMSAN reported a use-after-free issue in eth_skb_pkt_type()[1]. The
cause of the issue was that eth_skb_pkt_type() accessed skb's data
that didn't contain an Ethernet header. This occurs when
bpf_prog_test_run_xdp() passes an invalid value as the user_data
argument to bpf_test_init().
Fix this by returning an error when user_data is less than ETH_HLEN in
bpf_test_init(). Additionally, remove the check for "if (user_size >
size)" as it is unnecessary.
[1]
BUG: KMSAN: use-after-free in eth_skb_pkt_type include/linux/etherdevice.h:627 [inline]
BUG: KMSAN: use-after-free in eth_type_trans+0x4ee/0x980 net/ethernet/eth.c:165
eth_skb_pkt_type include/linux/etherdevice.h:627 [inline]
eth_type_trans+0x4ee/0x980 net/ethernet/eth.c:165
__xdp_build_skb_from_frame+0x5a8/0xa50 net/core/xdp.c:635
xdp_recv_frames net/bpf/test_run.c:272 [inline]
xdp_test_run_batch net/bpf/test_run.c:361 [inline]
bpf_test_run_xdp_live+0x2954/0x3330 net/bpf/test_run.c:390
bpf_prog_test_run_xdp+0x148e/0x1b10 net/bpf/test_run.c:1318
bpf_prog_test_run+0x5b7/0xa30 kernel/bpf/syscall.c:4371
__sys_bpf+0x6a6/0xe20 kernel/bpf/syscall.c:5777
__do_sys_bpf kernel/bpf/syscall.c:5866 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5864 [inline]
__x64_sys_bpf+0xa4/0xf0 kernel/bpf/syscall.c:5864
x64_sys_call+0x2ea0/0x3d90 arch/x86/include/generated/asm/syscalls_64.h:322
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd9/0x1d0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was created at:
free_pages_prepare mm/page_alloc.c:1056 [inline]
free_unref_page+0x156/0x1320 mm/page_alloc.c:2657
__free_pages+0xa3/0x1b0 mm/page_alloc.c:4838
bpf_ringbuf_free kernel/bpf/ringbuf.c:226 [inline]
ringbuf_map_free+0xff/0x1e0 kernel/bpf/ringbuf.c:235
bpf_map_free kernel/bpf/syscall.c:838 [inline]
bpf_map_free_deferred+0x17c/0x310 kernel/bpf/syscall.c:862
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa2b/0x1b60 kernel/workqueue.c:3310
worker_thread+0xedf/0x1550 kernel/workqueue.c:3391
kthread+0x535/0x6b0 kernel/kthread.c:389
ret_from_fork+0x6e/0x90 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
CPU: 1 UID: 0 PID: 17276 Comm: syz.1.16450 Not tainted 6.12.0-05490-g9bb88c659673 #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, test_run: Fix use-after-free issue in eth_skb_pkt_type()\n\nKMSAN reported a use-after-free issue in eth_skb_pkt_type()[1]. The\ncause of the issue was that eth_skb_pkt_type() accessed skb\u0027s data\nthat didn\u0027t contain an Ethernet header. This occurs when\nbpf_prog_test_run_xdp() passes an invalid value as the user_data\nargument to bpf_test_init().\n\nFix this by returning an error when user_data is less than ETH_HLEN in\nbpf_test_init(). Additionally, remove the check for \"if (user_size \u003e\nsize)\" as it is unnecessary.\n\n[1]\nBUG: KMSAN: use-after-free in eth_skb_pkt_type include/linux/etherdevice.h:627 [inline]\nBUG: KMSAN: use-after-free in eth_type_trans+0x4ee/0x980 net/ethernet/eth.c:165\n eth_skb_pkt_type include/linux/etherdevice.h:627 [inline]\n eth_type_trans+0x4ee/0x980 net/ethernet/eth.c:165\n __xdp_build_skb_from_frame+0x5a8/0xa50 net/core/xdp.c:635\n xdp_recv_frames net/bpf/test_run.c:272 [inline]\n xdp_test_run_batch net/bpf/test_run.c:361 [inline]\n bpf_test_run_xdp_live+0x2954/0x3330 net/bpf/test_run.c:390\n bpf_prog_test_run_xdp+0x148e/0x1b10 net/bpf/test_run.c:1318\n bpf_prog_test_run+0x5b7/0xa30 kernel/bpf/syscall.c:4371\n __sys_bpf+0x6a6/0xe20 kernel/bpf/syscall.c:5777\n __do_sys_bpf kernel/bpf/syscall.c:5866 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5864 [inline]\n __x64_sys_bpf+0xa4/0xf0 kernel/bpf/syscall.c:5864\n x64_sys_call+0x2ea0/0x3d90 arch/x86/include/generated/asm/syscalls_64.h:322\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xd9/0x1d0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was created at:\n free_pages_prepare mm/page_alloc.c:1056 [inline]\n free_unref_page+0x156/0x1320 mm/page_alloc.c:2657\n __free_pages+0xa3/0x1b0 mm/page_alloc.c:4838\n bpf_ringbuf_free kernel/bpf/ringbuf.c:226 [inline]\n ringbuf_map_free+0xff/0x1e0 kernel/bpf/ringbuf.c:235\n bpf_map_free kernel/bpf/syscall.c:838 [inline]\n bpf_map_free_deferred+0x17c/0x310 kernel/bpf/syscall.c:862\n process_one_work kernel/workqueue.c:3229 [inline]\n process_scheduled_works+0xa2b/0x1b60 kernel/workqueue.c:3310\n worker_thread+0xedf/0x1550 kernel/workqueue.c:3391\n kthread+0x535/0x6b0 kernel/kthread.c:389\n ret_from_fork+0x6e/0x90 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n\nCPU: 1 UID: 0 PID: 17276 Comm: syz.1.16450 Not tainted 6.12.0-05490-g9bb88c659673 #8\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014"
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"lang": "en",
"value": "AV:L - The vulnerability is triggered through the local `bpf(BPF_PROG_TEST_RUN)` syscall with `BPF_F_TEST_XDP_LIVE_FRAMES` and a short `data_size_in`; no network input reaches this code. Per kernel scoring guidance, BPF syscall-reachable bugs are Local.\nAC:L - The attacker fully controls `data_size_in`, `batch_size`, `repeat` and the XDP program, so the out-of-range read is triggered deterministically on every invocation with no race to win. Page-pool pages are freshly allocated non-zeroed pages, and the attacker can groom which freed pages get recycled by freeing chosen content immediately beforehand.\nPR:L - `bpf_prog_test_run()` performs no capability check whatsoever \u2014 the only gate is possession of an XDP program fd, which an unprivileged process can obtain via a delegated BPF token (`bpf_token_capable()` falls back to `ns_capable(token-\u003euserns, ...)`) or a bpffs pin, since `bpf_obj_do_get()` checks only file permissions. Loading a fresh XDP program needs CAP_BPF+CAP_NET_ADMIN, but that is a container/namespace-level privilege rather than real init-namespace root, so Low is the appropriate and higher-severity choice.\nUI:N - The attacker performs the entire sequence itself via the `bpf()` syscall; no victim action, mount, or file open is needed. The XDP frames are looped straight back into the local receive path by the test-run machinery.\nS:U - The stale-memory read, the disclosed data, and the resulting malformed skb all remain within the kernel\u0027s own security authority. No hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - `eth_skb_pkt_type()`/`eth_type_trans()` read the contents of a previously-freed page, and the derived `skb-\u003eprotocol` and `skb-\u003epkt_type` are directly readable by an `AF_PACKET` observer on loopback, giving a repeatable, unbounded oracle over recycled kernel memory that may contain pointers, keys, or user data. Per guidance, use-after-free reads of freed memory are scored High.\nI:H - Contents of freed memory \u2014 which the attacker can influence through heap grooming \u2014 become the Ethernet header that determines `skb-\u003eprotocol` and `skb-\u003epkt_type` for a frame injected into the local network stack via `netif_receive_skb_list()`, corrupting packet classification and delivery. Per guidance, use-after-free conditions are scored High for integrity.\nA:H - The kernel dereferences memory beyond the initialized frame and hands a geometrically invalid skb (`skb-\u003elen \u003c ETH_HLEN`, `mac_header == network_header`, `mac_len == 0`) to protocol handlers that assume `eth_type_trans()` pulled the header, and on hardened/KASAN/KMSAN builds the freed-page access itself is a fatal memory-error report. Per guidance, any use-after-free is scored High for availability."
}
]
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"datePublished": "2025-03-27T13:38:20.673Z",
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CVE-2025-68803 (GCVE-0-2025-68803)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFSD: NFSv4 file creation neglects setting ACL
An NFSv4 client that sets an ACL with a named principal during file
creation retrieves the ACL afterwards, and finds that it is only a
default ACL (based on the mode bits) and not the ACL that was
requested during file creation. This violates RFC 8881 section
6.4.1.3: "the ACL attribute is set as given".
The issue occurs in nfsd_create_setattr(), which calls
nfsd_attrs_valid() to determine whether to call nfsd_setattr().
However, nfsd_attrs_valid() checks only for iattr changes and
security labels, but not POSIX ACLs. When only an ACL is present,
the function returns false, nfsd_setattr() is skipped, and the
POSIX ACL is never applied to the inode.
Subsequently, when the client retrieves the ACL, the server finds
no POSIX ACL on the inode and returns one generated from the file's
mode bits rather than returning the originally-specified ACL.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c5409ce523af40d5c3019717bc5b4f72038d48be Version: d52acd23a327cada5fb597591267cfc09f08bb1d Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b Version: c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b Version: 5.10.220 ≤ Version: 5.15.154 ≤ |
||
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CVE-2026-31427 (GCVE-0-2026-31427)
Vulnerability from cvelistv5
Published
2026-04-13 13:40
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_sip: fix use of uninitialized rtp_addr in process_sdp
process_sdp() declares union nf_inet_addr rtp_addr on the stack and
passes it to the nf_nat_sip sdp_session hook after walking the SDP
media descriptions. However rtp_addr is only initialized inside the
media loop when a recognized media type with a non-zero port is found.
If the SDP body contains no m= lines, only inactive media sections
(m=audio 0 ...) or only unrecognized media types, rtp_addr is never
assigned. Despite that, the function still calls hooks->sdp_session()
with &rtp_addr, causing nf_nat_sdp_session() to format the stale stack
value as an IP address and rewrite the SDP session owner and connection
lines with it.
With CONFIG_INIT_STACK_ALL_ZERO (default on most distributions) this
results in the session-level o= and c= addresses being rewritten to
0.0.0.0 for inactive SDP sessions. Without stack auto-init the
rewritten address is whatever happened to be on the stack.
Fix this by pre-initializing rtp_addr from the session-level connection
address (caddr) when available, and tracking via a have_rtp_addr flag
whether any valid address was established. Skip the sdp_session hook
entirely when no valid address exists.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 Version: 4ab9e64e5e3c0516577818804aaf13a630d67bc9 |
||
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CVE-2026-31671 (GCVE-0-2026-31671)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfrm_user: fix info leak in build_report()
struct xfrm_user_report is a __u8 proto field followed by a struct
xfrm_selector which means there is three "empty" bytes of padding, but
the padding is never zeroed before copying to userspace. Fix that up by
zeroing the structure before setting individual member variables.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 Version: 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 |
||
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CVE-2025-39770 (GCVE-0-2025-39770)
Vulnerability from cvelistv5
Published
2025-09-11 16:56
Modified
2026-08-05 12:05
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM
When performing Generic Segmentation Offload (GSO) on an IPv6 packet that
contains extension headers, the kernel incorrectly requests checksum offload
if the egress device only advertises NETIF_F_IPV6_CSUM feature, which has
a strict contract: it supports checksum offload only for plain TCP or UDP
over IPv6 and explicitly does not support packets with extension headers.
The current GSO logic violates this contract by failing to disable the feature
for packets with extension headers, such as those used in GREoIPv6 tunnels.
This violation results in the device being asked to perform an operation
it cannot support, leading to a `skb_warn_bad_offload` warning and a collapse
of network throughput. While device TSO/USO is correctly bypassed in favor
of software GSO for these packets, the GSO stack must be explicitly told not
to request checksum offload.
Mask NETIF_F_IPV6_CSUM, NETIF_F_TSO6 and NETIF_F_GSO_UDP_L4
in gso_features_check if the IPv6 header contains extension headers to compute
checksum in software.
The exception is a BIG TCP extension, which, as stated in commit
68e068cabd2c6c53 ("net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets"):
"The feature is only enabled on devices that support BIG TCP TSO.
The header is only present for PF_PACKET taps like tcpdump,
and not transmitted by physical devices."
kernel log output (truncated):
WARNING: CPU: 1 PID: 5273 at net/core/dev.c:3535 skb_warn_bad_offload+0x81/0x140
...
Call Trace:
<TASK>
skb_checksum_help+0x12a/0x1f0
validate_xmit_skb+0x1a3/0x2d0
validate_xmit_skb_list+0x4f/0x80
sch_direct_xmit+0x1a2/0x380
__dev_xmit_skb+0x242/0x670
__dev_queue_xmit+0x3fc/0x7f0
ip6_finish_output2+0x25e/0x5d0
ip6_finish_output+0x1fc/0x3f0
ip6_tnl_xmit+0x608/0xc00 [ip6_tunnel]
ip6gre_tunnel_xmit+0x1c0/0x390 [ip6_gre]
dev_hard_start_xmit+0x63/0x1c0
__dev_queue_xmit+0x6d0/0x7f0
ip6_finish_output2+0x214/0x5d0
ip6_finish_output+0x1fc/0x3f0
ip6_xmit+0x2ca/0x6f0
ip6_finish_output+0x1fc/0x3f0
ip6_xmit+0x2ca/0x6f0
inet6_csk_xmit+0xeb/0x150
__tcp_transmit_skb+0x555/0xa80
tcp_write_xmit+0x32a/0xe90
tcp_sendmsg_locked+0x437/0x1110
tcp_sendmsg+0x2f/0x50
...
skb linear: 00000000: e4 3d 1a 7d ec 30 e4 3d 1a 7e 5d 90 86 dd 60 0e
skb linear: 00000010: 00 0a 1b 34 3c 40 20 11 00 00 00 00 00 00 00 00
skb linear: 00000020: 00 00 00 00 00 12 20 11 00 00 00 00 00 00 00 00
skb linear: 00000030: 00 00 00 00 00 11 2f 00 04 01 04 01 01 00 00 00
skb linear: 00000040: 86 dd 60 0e 00 0a 1b 00 06 40 20 23 00 00 00 00
skb linear: 00000050: 00 00 00 00 00 00 00 00 00 12 20 23 00 00 00 00
skb linear: 00000060: 00 00 00 00 00 00 00 00 00 11 bf 96 14 51 13 f9
skb linear: 00000070: ae 27 a0 a8 2b e3 80 18 00 40 5b 6f 00 00 01 01
skb linear: 00000080: 08 0a 42 d4 50 d5 4b 70 f8 1a
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a84978a9cda68f0afe3f01d476c68db21526baf1 Version: c69bc67c1cb211aa390bea6e512bb01b1241fefb Version: 04c20a9356f283da623903e81e7c6d5df7e4dc3c Version: 04c20a9356f283da623903e81e7c6d5df7e4dc3c Version: 04c20a9356f283da623903e81e7c6d5df7e4dc3c Version: bcefc3cd7f592a70fcbbbfd7ad1fbc69172ea78b Version: 477b35d94a21530046fe91589960732fcf2b29ed Version: a27a5c40ee4cbe00294e2c76160de5f2589061ba Version: 9f605135a5c0fe614c2b15197b9ced1e217eca59 Version: 705350fbd6ed4b5d89ee045fa57a0594a72b17d7 Version: 6.1.116 ≤ Version: 6.6.60 ≤ Version: 4.19.323 ≤ Version: 5.4.285 ≤ Version: 5.10.229 ≤ Version: 5.15.171 ≤ Version: 6.11.7 ≤ |
||
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CVE-2025-21682 (GCVE-0-2025-21682)
Vulnerability from cvelistv5
Published
2025-01-31 11:25
Modified
2026-08-05 11:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
eth: bnxt: always recalculate features after XDP clearing, fix null-deref
Recalculate features when XDP is detached.
Before:
# ip li set dev eth0 xdp obj xdp_dummy.bpf.o sec xdp
# ip li set dev eth0 xdp off
# ethtool -k eth0 | grep gro
rx-gro-hw: off [requested on]
After:
# ip li set dev eth0 xdp obj xdp_dummy.bpf.o sec xdp
# ip li set dev eth0 xdp off
# ethtool -k eth0 | grep gro
rx-gro-hw: on
The fact that HW-GRO doesn't get re-enabled automatically is just
a minor annoyance. The real issue is that the features will randomly
come back during another reconfiguration which just happens to invoke
netdev_update_features(). The driver doesn't handle reconfiguring
two things at a time very robustly.
Starting with commit 98ba1d931f61 ("bnxt_en: Fix RSS logic in
__bnxt_reserve_rings()") we only reconfigure the RSS hash table
if the "effective" number of Rx rings has changed. If HW-GRO is
enabled "effective" number of rings is 2x what user sees.
So if we are in the bad state, with HW-GRO re-enablement "pending"
after XDP off, and we lower the rings by / 2 - the HW-GRO rings
doing 2x and the ethtool -L doing / 2 may cancel each other out,
and the:
if (old_rx_rings != bp->hw_resc.resv_rx_rings &&
condition in __bnxt_reserve_rings() will be false.
The RSS map won't get updated, and we'll crash with:
BUG: kernel NULL pointer dereference, address: 0000000000000168
RIP: 0010:__bnxt_hwrm_vnic_set_rss+0x13a/0x1a0
bnxt_hwrm_vnic_rss_cfg_p5+0x47/0x180
__bnxt_setup_vnic_p5+0x58/0x110
bnxt_init_nic+0xb72/0xf50
__bnxt_open_nic+0x40d/0xab0
bnxt_open_nic+0x2b/0x60
ethtool_set_channels+0x18c/0x1d0
As we try to access a freed ring.
The issue is present since XDP support was added, really, but
prior to commit 98ba1d931f61 ("bnxt_en: Fix RSS logic in
__bnxt_reserve_rings()") it wasn't causing major issues.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-37785 (GCVE-0-2025-37785)
Vulnerability from cvelistv5
Published
2025-04-18 07:01
Modified
2026-08-05 11:57
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix OOB read when checking dotdot dir
Mounting a corrupted filesystem with directory which contains '.' dir
entry with rec_len == block size results in out-of-bounds read (later
on, when the corrupted directory is removed).
ext4_empty_dir() assumes every ext4 directory contains at least '.'
and '..' as directory entries in the first data block. It first loads
the '.' dir entry, performs sanity checks by calling ext4_check_dir_entry()
and then uses its rec_len member to compute the location of '..' dir
entry (in ext4_next_entry). It assumes the '..' dir entry fits into the
same data block.
If the rec_len of '.' is precisely one block (4KB), it slips through the
sanity checks (it is considered the last directory entry in the data
block) and leaves "struct ext4_dir_entry_2 *de" point exactly past the
memory slot allocated to the data block. The following call to
ext4_check_dir_entry() on new value of de then dereferences this pointer
which results in out-of-bounds mem access.
Fix this by extending __ext4_check_dir_entry() to check for '.' dir
entries that reach the end of data block. Make sure to ignore the phony
dir entries for checksum (by checking name_len for non-zero).
Note: This is reported by KASAN as use-after-free in case another
structure was recently freed from the slot past the bound, but it is
really an OOB read.
This issue was found by syzkaller tool.
Call Trace:
[ 38.594108] BUG: KASAN: slab-use-after-free in __ext4_check_dir_entry+0x67e/0x710
[ 38.594649] Read of size 2 at addr ffff88802b41a004 by task syz-executor/5375
[ 38.595158]
[ 38.595288] CPU: 0 UID: 0 PID: 5375 Comm: syz-executor Not tainted 6.14.0-rc7 #1
[ 38.595298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 38.595304] Call Trace:
[ 38.595308] <TASK>
[ 38.595311] dump_stack_lvl+0xa7/0xd0
[ 38.595325] print_address_description.constprop.0+0x2c/0x3f0
[ 38.595339] ? __ext4_check_dir_entry+0x67e/0x710
[ 38.595349] print_report+0xaa/0x250
[ 38.595359] ? __ext4_check_dir_entry+0x67e/0x710
[ 38.595368] ? kasan_addr_to_slab+0x9/0x90
[ 38.595378] kasan_report+0xab/0xe0
[ 38.595389] ? __ext4_check_dir_entry+0x67e/0x710
[ 38.595400] __ext4_check_dir_entry+0x67e/0x710
[ 38.595410] ext4_empty_dir+0x465/0x990
[ 38.595421] ? __pfx_ext4_empty_dir+0x10/0x10
[ 38.595432] ext4_rmdir.part.0+0x29a/0xd10
[ 38.595441] ? __dquot_initialize+0x2a7/0xbf0
[ 38.595455] ? __pfx_ext4_rmdir.part.0+0x10/0x10
[ 38.595464] ? __pfx___dquot_initialize+0x10/0x10
[ 38.595478] ? down_write+0xdb/0x140
[ 38.595487] ? __pfx_down_write+0x10/0x10
[ 38.595497] ext4_rmdir+0xee/0x140
[ 38.595506] vfs_rmdir+0x209/0x670
[ 38.595517] ? lookup_one_qstr_excl+0x3b/0x190
[ 38.595529] do_rmdir+0x363/0x3c0
[ 38.595537] ? __pfx_do_rmdir+0x10/0x10
[ 38.595544] ? strncpy_from_user+0x1ff/0x2e0
[ 38.595561] __x64_sys_unlinkat+0xf0/0x130
[ 38.595570] do_syscall_64+0x5b/0x180
[ 38.595583] entry_SYSCALL_64_after_hwframe+0x76/0x7e
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 Version: ac27a0ec112a089f1a5102bc8dffc79c8c815571 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix OOB read when checking dotdot dir\n\nMounting a corrupted filesystem with directory which contains \u0027.\u0027 dir\nentry with rec_len == block size results in out-of-bounds read (later\non, when the corrupted directory is removed).\n\next4_empty_dir() assumes every ext4 directory contains at least \u0027.\u0027\nand \u0027..\u0027 as directory entries in the first data block. It first loads\nthe \u0027.\u0027 dir entry, performs sanity checks by calling ext4_check_dir_entry()\nand then uses its rec_len member to compute the location of \u0027..\u0027 dir\nentry (in ext4_next_entry). It assumes the \u0027..\u0027 dir entry fits into the\nsame data block.\n\nIf the rec_len of \u0027.\u0027 is precisely one block (4KB), it slips through the\nsanity checks (it is considered the last directory entry in the data\nblock) and leaves \"struct ext4_dir_entry_2 *de\" point exactly past the\nmemory slot allocated to the data block. The following call to\next4_check_dir_entry() on new value of de then dereferences this pointer\nwhich results in out-of-bounds mem access.\n\nFix this by extending __ext4_check_dir_entry() to check for \u0027.\u0027 dir\nentries that reach the end of data block. Make sure to ignore the phony\ndir entries for checksum (by checking name_len for non-zero).\n\nNote: This is reported by KASAN as use-after-free in case another\nstructure was recently freed from the slot past the bound, but it is\nreally an OOB read.\n\nThis issue was found by syzkaller tool.\n\nCall Trace:\n[ 38.594108] BUG: KASAN: slab-use-after-free in __ext4_check_dir_entry+0x67e/0x710\n[ 38.594649] Read of size 2 at addr ffff88802b41a004 by task syz-executor/5375\n[ 38.595158]\n[ 38.595288] CPU: 0 UID: 0 PID: 5375 Comm: syz-executor Not tainted 6.14.0-rc7 #1\n[ 38.595298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\n[ 38.595304] Call Trace:\n[ 38.595308] \u003cTASK\u003e\n[ 38.595311] dump_stack_lvl+0xa7/0xd0\n[ 38.595325] print_address_description.constprop.0+0x2c/0x3f0\n[ 38.595339] ? __ext4_check_dir_entry+0x67e/0x710\n[ 38.595349] print_report+0xaa/0x250\n[ 38.595359] ? __ext4_check_dir_entry+0x67e/0x710\n[ 38.595368] ? kasan_addr_to_slab+0x9/0x90\n[ 38.595378] kasan_report+0xab/0xe0\n[ 38.595389] ? __ext4_check_dir_entry+0x67e/0x710\n[ 38.595400] __ext4_check_dir_entry+0x67e/0x710\n[ 38.595410] ext4_empty_dir+0x465/0x990\n[ 38.595421] ? __pfx_ext4_empty_dir+0x10/0x10\n[ 38.595432] ext4_rmdir.part.0+0x29a/0xd10\n[ 38.595441] ? __dquot_initialize+0x2a7/0xbf0\n[ 38.595455] ? __pfx_ext4_rmdir.part.0+0x10/0x10\n[ 38.595464] ? __pfx___dquot_initialize+0x10/0x10\n[ 38.595478] ? down_write+0xdb/0x140\n[ 38.595487] ? __pfx_down_write+0x10/0x10\n[ 38.595497] ext4_rmdir+0xee/0x140\n[ 38.595506] vfs_rmdir+0x209/0x670\n[ 38.595517] ? lookup_one_qstr_excl+0x3b/0x190\n[ 38.595529] do_rmdir+0x363/0x3c0\n[ 38.595537] ? __pfx_do_rmdir+0x10/0x10\n[ 38.595544] ? strncpy_from_user+0x1ff/0x2e0\n[ 38.595561] __x64_sys_unlinkat+0xf0/0x130\n[ 38.595570] do_syscall_64+0x5b/0x180\n[ 38.595583] entry_SYSCALL_64_after_hwframe+0x76/0x7e"
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"value": "AV:L - Triggering requires a crafted ext4 image to be mounted locally and then an `unlinkat(AT_REMOVEDIR)`/rename syscall against the corrupted directory; there is no network-facing path to `ext4_empty_dir()`. Local attack vector scores higher than physical and correctly models USB/auto-mount and loop-mount delivery.\nAC:L - The condition is fully deterministic and entirely attacker-authored \u2014 setting the `.` entry\u0027s `rec_len` to exactly the block size in the image reliably slips past every sanity check in `__ext4_check_dir_entry()` and lands `de` past the block on every attempt. No race, timing, or uncontrolled memory-layout requirement.\nPR:L - Once the image is mounted (via udisks2/GNOME auto-mount of removable media on desktops and kiosks, or an fstab `user` entry), any unprivileged local user with ordinary access to the mount can invoke `rmdir` and reach `ext4_empty_dir()`; no capability check gates the path.\nUI:N - In the auto-mount scenario the attacker performs both steps themselves \u2014 inserting the media triggers the mount automatically and the same attacker issues the `rmdir` \u2014 so no action by a separate user is required.\nS:U - The out-of-bounds access, the disclosure, and the panic all occur within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The read reaches into the adjacent slab object/page and its contents are exfiltrated to userspace-visible dmesg through `ext4_error_inode()`, which prints the out-of-bounds `inode` and `rec_len` fields verbatim. The operation is cheaply repeatable and the neighbouring slot can be heap-groomed, making it a practical kernel heap/pointer disclosure primitive rather than a bounded one-shot leak.\nI:H - Data read out of bounds directly controls subsequent logic \u2014 if the adjacent heap bytes decode as a valid `..` entry, `ext4_empty_dir()` wrongly reports the directory empty and `rmdir`/`rename` proceeds to unlink a non-empty directory, and the OOB `rec_len` drives the following offset walk. KASAN classifies the access as a use-after-free on the neighbouring freed object, so attacker-groomed heap state translates into corrupted filesystem-metadata operations.\nA:H - The error path is reached with the attacker-controlled superblock, and `s_errors = EXT4_ERRORS_PANIC` (`fs/ext4/super.c:4364`) makes `ext4_error_inode()` call `panic()` at `super.c:735`, giving a guaranteed kernel panic. Independently, the read past the block can fault on an unmapped or poisoned page, and on debug/KASAN kernels it is an immediate BUG."
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CVE-2025-39955 (GCVE-0-2025-39955)
Vulnerability from cvelistv5
Published
2025-10-09 09:47
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
syzbot reported the splat below where a socket had tcp_sk(sk)->fastopen_rsk
in the TCP_ESTABLISHED state. [0]
syzbot reused the server-side TCP Fast Open socket as a new client before
the TFO socket completes 3WHS:
1. accept()
2. connect(AF_UNSPEC)
3. connect() to another destination
As of accept(), sk->sk_state is TCP_SYN_RECV, and tcp_disconnect() changes
it to TCP_CLOSE and makes connect() possible, which restarts timers.
Since tcp_disconnect() forgot to clear tcp_sk(sk)->fastopen_rsk, the
retransmit timer triggered the warning and the intended packet was not
retransmitted.
Let's call reqsk_fastopen_remove() in tcp_disconnect().
[0]:
WARNING: CPU: 2 PID: 0 at net/ipv4/tcp_timer.c:542 tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))
Modules linked in:
CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.17.0-rc5-g201825fb4278 #62 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))
Code: 41 55 41 54 55 53 48 8b af b8 08 00 00 48 89 fb 48 85 ed 0f 84 55 01 00 00 0f b6 47 12 3c 03 74 0c 0f b6 47 12 3c 04 74 04 90 <0f> 0b 90 48 8b 85 c0 00 00 00 48 89 ef 48 8b 40 30 e8 6a 4f 06 3e
RSP: 0018:ffffc900002f8d40 EFLAGS: 00010293
RAX: 0000000000000002 RBX: ffff888106911400 RCX: 0000000000000017
RDX: 0000000002517619 RSI: ffffffff83764080 RDI: ffff888106911400
RBP: ffff888106d5c000 R08: 0000000000000001 R09: ffffc900002f8de8
R10: 00000000000000c2 R11: ffffc900002f8ff8 R12: ffff888106911540
R13: ffff888106911480 R14: ffff888106911840 R15: ffffc900002f8de0
FS: 0000000000000000(0000) GS:ffff88907b768000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8044d69d90 CR3: 0000000002c30003 CR4: 0000000000370ef0
Call Trace:
<IRQ>
tcp_write_timer (net/ipv4/tcp_timer.c:738)
call_timer_fn (kernel/time/timer.c:1747)
__run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372)
timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135)
tmigr_handle_remote_up (kernel/time/timer_migration.c:944 kernel/time/timer_migration.c:1035)
__walk_groups.isra.0 (kernel/time/timer_migration.c:533 (discriminator 1))
tmigr_handle_remote (kernel/time/timer_migration.c:1096)
handle_softirqs (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/irq.h:142 kernel/softirq.c:580)
irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680 kernel/softirq.c:696)
sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 (discriminator 35) arch/x86/kernel/apic/apic.c:1050 (discriminator 35))
</IRQ>
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 Version: 8336886f786fdacbc19b719c1f7ea91eb70706d4 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Clear tcp_sk(sk)-\u003efastopen_rsk in tcp_disconnect().\n\nsyzbot reported the splat below where a socket had tcp_sk(sk)-\u003efastopen_rsk\nin the TCP_ESTABLISHED state. [0]\n\nsyzbot reused the server-side TCP Fast Open socket as a new client before\nthe TFO socket completes 3WHS:\n\n 1. accept()\n 2. connect(AF_UNSPEC)\n 3. connect() to another destination\n\nAs of accept(), sk-\u003esk_state is TCP_SYN_RECV, and tcp_disconnect() changes\nit to TCP_CLOSE and makes connect() possible, which restarts timers.\n\nSince tcp_disconnect() forgot to clear tcp_sk(sk)-\u003efastopen_rsk, the\nretransmit timer triggered the warning and the intended packet was not\nretransmitted.\n\nLet\u0027s call reqsk_fastopen_remove() in tcp_disconnect().\n\n[0]:\nWARNING: CPU: 2 PID: 0 at net/ipv4/tcp_timer.c:542 tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))\nModules linked in:\nCPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.17.0-rc5-g201825fb4278 #62 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))\nCode: 41 55 41 54 55 53 48 8b af b8 08 00 00 48 89 fb 48 85 ed 0f 84 55 01 00 00 0f b6 47 12 3c 03 74 0c 0f b6 47 12 3c 04 74 04 90 \u003c0f\u003e 0b 90 48 8b 85 c0 00 00 00 48 89 ef 48 8b 40 30 e8 6a 4f 06 3e\nRSP: 0018:ffffc900002f8d40 EFLAGS: 00010293\nRAX: 0000000000000002 RBX: ffff888106911400 RCX: 0000000000000017\nRDX: 0000000002517619 RSI: ffffffff83764080 RDI: ffff888106911400\nRBP: ffff888106d5c000 R08: 0000000000000001 R09: ffffc900002f8de8\nR10: 00000000000000c2 R11: ffffc900002f8ff8 R12: ffff888106911540\nR13: ffff888106911480 R14: ffff888106911840 R15: ffffc900002f8de0\nFS: 0000000000000000(0000) GS:ffff88907b768000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f8044d69d90 CR3: 0000000002c30003 CR4: 0000000000370ef0\nCall Trace:\n \u003cIRQ\u003e\n tcp_write_timer (net/ipv4/tcp_timer.c:738)\n call_timer_fn (kernel/time/timer.c:1747)\n __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372)\n timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135)\n tmigr_handle_remote_up (kernel/time/timer_migration.c:944 kernel/time/timer_migration.c:1035)\n __walk_groups.isra.0 (kernel/time/timer_migration.c:533 (discriminator 1))\n tmigr_handle_remote (kernel/time/timer_migration.c:1096)\n handle_softirqs (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/irq.h:142 kernel/softirq.c:580)\n irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680 kernel/softirq.c:696)\n sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 (discriminator 35) arch/x86/kernel/apic/apic.c:1050 (discriminator 35))\n \u003c/IRQ\u003e"
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CVE-2026-23245 (GCVE-0-2026-23245)
Vulnerability from cvelistv5
Published
2026-03-18 10:05
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_gate: snapshot parameters with RCU on replace
The gate action can be replaced while the hrtimer callback or dump path is
walking the schedule list.
Convert the parameters to an RCU-protected snapshot and swap updates under
tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits
the entry list, preserve the existing schedule so the effective state is
unchanged.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a51c328df3106663879645680609eb49b3ff6444 Version: a51c328df3106663879645680609eb49b3ff6444 Version: a51c328df3106663879645680609eb49b3ff6444 Version: a51c328df3106663879645680609eb49b3ff6444 Version: a51c328df3106663879645680609eb49b3ff6444 Version: a51c328df3106663879645680609eb49b3ff6444 Version: a51c328df3106663879645680609eb49b3ff6444 |
||
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CVE-2026-31428 (GCVE-0-2026-31428)
Vulnerability from cvelistv5
Published
2026-04-13 13:40
Modified
2026-07-14 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD
__build_packet_message() manually constructs the NFULA_PAYLOAD netlink
attribute using skb_put() and skb_copy_bits(), bypassing the standard
nla_reserve()/nla_put() helpers. While nla_total_size(data_len) bytes
are allocated (including NLA alignment padding), only data_len bytes
of actual packet data are copied. The trailing nla_padlen(data_len)
bytes (1-3 when data_len is not 4-byte aligned) are never initialized,
leaking stale heap contents to userspace via the NFLOG netlink socket.
Replace the manual attribute construction with nla_reserve(), which
handles the tailroom check, header setup, and padding zeroing via
__nla_reserve(). The subsequent skb_copy_bits() fills in the payload
data on top of the properly initialized attribute.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: df6fb868d6118686805c2fa566e213a8f31c8e4f Version: df6fb868d6118686805c2fa566e213a8f31c8e4f Version: df6fb868d6118686805c2fa566e213a8f31c8e4f Version: df6fb868d6118686805c2fa566e213a8f31c8e4f Version: df6fb868d6118686805c2fa566e213a8f31c8e4f Version: df6fb868d6118686805c2fa566e213a8f31c8e4f Version: df6fb868d6118686805c2fa566e213a8f31c8e4f Version: df6fb868d6118686805c2fa566e213a8f31c8e4f |
||
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CVE-2025-68264 (GCVE-0-2025-68264)
Vulnerability from cvelistv5
Published
2025-12-16 14:45
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: refresh inline data size before write operations
The cached ei->i_inline_size can become stale between the initial size
check and when ext4_update_inline_data()/ext4_create_inline_data() use
it. Although ext4_get_max_inline_size() reads the correct value at the
time of the check, concurrent xattr operations can modify i_inline_size
before ext4_write_lock_xattr() is acquired.
This causes ext4_update_inline_data() and ext4_create_inline_data() to
work with stale capacity values, leading to a BUG_ON() crash in
ext4_write_inline_data():
kernel BUG at fs/ext4/inline.c:1331!
BUG_ON(pos + len > EXT4_I(inode)->i_inline_size);
The race window:
1. ext4_get_max_inline_size() reads i_inline_size = 60 (correct)
2. Size check passes for 50-byte write
3. [Another thread adds xattr, i_inline_size changes to 40]
4. ext4_write_lock_xattr() acquires lock
5. ext4_update_inline_data() uses stale i_inline_size = 60
6. Attempts to write 50 bytes but only 40 bytes actually available
7. BUG_ON() triggers
Fix this by recalculating i_inline_size via ext4_find_inline_data_nolock()
immediately after acquiring xattr_sem. This ensures ext4_update_inline_data()
and ext4_create_inline_data() work with current values that are protected
from concurrent modifications.
This is similar to commit a54c4613dac1 ("ext4: fix race writing to an
inline_data file while its xattrs are changing") which fixed i_inline_off
staleness. This patch addresses the related i_inline_size staleness issue.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 Version: 67cf5b09a46f72e048501b84996f2f77bc42e947 |
||
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CVE-2026-43035 (GCVE-0-2026-43035)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-07-14 12:49
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak
When building netlink messages, tc_chain_fill_node() never initializes
the tcm_info field of struct tcmsg. Since the allocation is not zeroed,
kernel heap memory is leaked to userspace through this 4-byte field.
The fix simply zeroes tcm_info alongside the other fields that are
already initialized.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e Version: 32a4f5ecd7381f30ae3bb36dea77a150ba68af2e |
||
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CVE-2025-71265 (GCVE-0-2025-71265)
Vulnerability from cvelistv5
Published
2026-03-18 10:05
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: ntfs3: fix infinite loop in attr_load_runs_range on inconsistent metadata
We found an infinite loop bug in the ntfs3 file system that can lead to a
Denial-of-Service (DoS) condition.
A malformed NTFS image can cause an infinite loop when an attribute header
indicates an empty run list, while directory entries reference it as
containing actual data. In NTFS, setting evcn=-1 with svcn=0 is a valid way
to represent an empty run list, and run_unpack() correctly handles this by
checking if evcn + 1 equals svcn and returning early without parsing any run
data. However, this creates a problem when there is metadata inconsistency,
where the attribute header claims to be empty (evcn=-1) but the caller
expects to read actual data. When run_unpack() immediately returns success
upon seeing this condition, it leaves the runs_tree uninitialized with
run->runs as a NULL. The calling function attr_load_runs_range() assumes
that a successful return means that the runs were loaded and sets clen to 0,
expecting the next run_lookup_entry() call to succeed. Because runs_tree
remains uninitialized, run_lookup_entry() continues to fail, and the loop
increments vcn by zero (vcn += 0), leading to an infinite loop.
This patch adds a retry counter to detect when run_lookup_entry() fails
consecutively after attr_load_runs_vcn(). If the run is still not found on
the second attempt, it indicates corrupted metadata and returns -EINVAL,
preventing the Denial-of-Service (DoS) vulnerability.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 Version: be71b5cba2e6485e8959da7a9f9a44461a1bb074 |
||
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CVE-2026-23397 (GCVE-0-2026-23397)
Vulnerability from cvelistv5
Published
2026-03-26 10:22
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfnetlink_osf: validate individual option lengths in fingerprints
nfnl_osf_add_callback() validates opt_num bounds and string
NUL-termination but does not check individual option length fields.
A zero-length option causes nf_osf_match_one() to enter the option
matching loop even when foptsize sums to zero, which matches packets
with no TCP options where ctx->optp is NULL:
Oops: general protection fault
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98)
Call Trace:
nf_osf_match (net/netfilter/nfnetlink_osf.c:227)
xt_osf_match_packet (net/netfilter/xt_osf.c:32)
ipt_do_table (net/ipv4/netfilter/ip_tables.c:293)
nf_hook_slow (net/netfilter/core.c:623)
ip_local_deliver (net/ipv4/ip_input.c:262)
ip_rcv (net/ipv4/ip_input.c:573)
Additionally, an MSS option (kind=2) with length < 4 causes
out-of-bounds reads when nf_osf_match_one() unconditionally accesses
optp[2] and optp[3] for MSS value extraction. While RFC 9293
section 3.2 specifies that the MSS option is always exactly 4
bytes (Kind=2, Length=4), the check uses "< 4" rather than
"!= 4" because lengths greater than 4 do not cause memory
safety issues -- the buffer is guaranteed to be at least
foptsize bytes by the ctx->optsize == foptsize check.
Reject fingerprints where any option has zero length, or where an MSS
option has length less than 4, at add time rather than trusting these
values in the packet matching hot path.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 Version: 11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384 |
||
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CVE-2026-23084 (GCVE-0-2026-23084)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list
When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is
set to false, the driver may request the PMAC_ID from the firmware of the
network card, and this function will store that PMAC_ID at the provided
address pmac_id. This is the contract of this function.
However, there is a location within the driver where both
pmac_id_valid == false and pmac_id == NULL are being passed. This could
result in dereferencing a NULL pointer.
To resolve this issue, it is necessary to pass the address of a stub
variable to the function.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 95046b927a54f461766f83a212c6a93bc5fd2e67 Version: 95046b927a54f461766f83a212c6a93bc5fd2e67 Version: 95046b927a54f461766f83a212c6a93bc5fd2e67 Version: 95046b927a54f461766f83a212c6a93bc5fd2e67 Version: 95046b927a54f461766f83a212c6a93bc5fd2e67 Version: 95046b927a54f461766f83a212c6a93bc5fd2e67 Version: 95046b927a54f461766f83a212c6a93bc5fd2e67 |
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CVE-2026-23277 (GCVE-0-2026-23277)
Vulnerability from cvelistv5
Published
2026-03-20 08:08
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit
teql_master_xmit() calls netdev_start_xmit(skb, slave) to transmit
through slave devices, but does not update skb->dev to the slave device
beforehand.
When a gretap tunnel is a TEQL slave, the transmit path reaches
iptunnel_xmit() which saves dev = skb->dev (still pointing to teql0
master) and later calls iptunnel_xmit_stats(dev, pkt_len). This
function does:
get_cpu_ptr(dev->tstats)
Since teql_master_setup() does not set dev->pcpu_stat_type to
NETDEV_PCPU_STAT_TSTATS, the core network stack never allocates tstats
for teql0, so dev->tstats is NULL. get_cpu_ptr(NULL) computes
NULL + __per_cpu_offset[cpu], resulting in a page fault.
BUG: unable to handle page fault for address: ffff8880e6659018
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 68bc067 P4D 68bc067 PUD 0
Oops: Oops: 0002 [#1] SMP KASAN PTI
RIP: 0010:iptunnel_xmit (./include/net/ip_tunnels.h:664 net/ipv4/ip_tunnel_core.c:89)
Call Trace:
<TASK>
ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847)
__gre_xmit (net/ipv4/ip_gre.c:478)
gre_tap_xmit (net/ipv4/ip_gre.c:779)
teql_master_xmit (net/sched/sch_teql.c:319)
dev_hard_start_xmit (net/core/dev.c:3887)
sch_direct_xmit (net/sched/sch_generic.c:347)
__dev_queue_xmit (net/core/dev.c:4802)
neigh_direct_output (net/core/neighbour.c:1660)
ip_finish_output2 (net/ipv4/ip_output.c:237)
__ip_finish_output.part.0 (net/ipv4/ip_output.c:315)
ip_mc_output (net/ipv4/ip_output.c:369)
ip_send_skb (net/ipv4/ip_output.c:1508)
udp_send_skb (net/ipv4/udp.c:1195)
udp_sendmsg (net/ipv4/udp.c:1485)
inet_sendmsg (net/ipv4/af_inet.c:859)
__sys_sendto (net/socket.c:2206)
Fix this by setting skb->dev = slave before calling
netdev_start_xmit(), so that tunnel xmit functions see the correct
slave device with properly allocated tstats.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 Version: 039f50629b7f860f36644ed1f34b27da9aa62f43 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit\n\nteql_master_xmit() calls netdev_start_xmit(skb, slave) to transmit\nthrough slave devices, but does not update skb-\u003edev to the slave device\nbeforehand.\n\nWhen a gretap tunnel is a TEQL slave, the transmit path reaches\niptunnel_xmit() which saves dev = skb-\u003edev (still pointing to teql0\nmaster) and later calls iptunnel_xmit_stats(dev, pkt_len). This\nfunction does:\n\n get_cpu_ptr(dev-\u003etstats)\n\nSince teql_master_setup() does not set dev-\u003epcpu_stat_type to\nNETDEV_PCPU_STAT_TSTATS, the core network stack never allocates tstats\nfor teql0, so dev-\u003etstats is NULL. get_cpu_ptr(NULL) computes\nNULL + __per_cpu_offset[cpu], resulting in a page fault.\n\n BUG: unable to handle page fault for address: ffff8880e6659018\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 68bc067 P4D 68bc067 PUD 0\n Oops: Oops: 0002 [#1] SMP KASAN PTI\n RIP: 0010:iptunnel_xmit (./include/net/ip_tunnels.h:664 net/ipv4/ip_tunnel_core.c:89)\n Call Trace:\n \u003cTASK\u003e\n ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847)\n __gre_xmit (net/ipv4/ip_gre.c:478)\n gre_tap_xmit (net/ipv4/ip_gre.c:779)\n teql_master_xmit (net/sched/sch_teql.c:319)\n dev_hard_start_xmit (net/core/dev.c:3887)\n sch_direct_xmit (net/sched/sch_generic.c:347)\n __dev_queue_xmit (net/core/dev.c:4802)\n neigh_direct_output (net/core/neighbour.c:1660)\n ip_finish_output2 (net/ipv4/ip_output.c:237)\n __ip_finish_output.part.0 (net/ipv4/ip_output.c:315)\n ip_mc_output (net/ipv4/ip_output.c:369)\n ip_send_skb (net/ipv4/ip_output.c:1508)\n udp_send_skb (net/ipv4/udp.c:1195)\n udp_sendmsg (net/ipv4/udp.c:1485)\n inet_sendmsg (net/ipv4/af_inet.c:859)\n __sys_sendto (net/socket.c:2206)\n\nFix this by setting skb-\u003edev = slave before calling\nnetdev_start_xmit(), so that tunnel xmit functions see the correct\nslave device with properly allocated tstats."
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"datePublished": "2026-03-20T08:08:57.394Z",
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CVE-2025-39977 (GCVE-0-2025-39977)
Vulnerability from cvelistv5
Published
2025-10-15 07:55
Modified
2026-08-05 12:06
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
futex: Prevent use-after-free during requeue-PI
syzbot managed to trigger the following race:
T1 T2
futex_wait_requeue_pi()
futex_do_wait()
schedule()
futex_requeue()
futex_proxy_trylock_atomic()
futex_requeue_pi_prepare()
requeue_pi_wake_futex()
futex_requeue_pi_complete()
/* preempt */
* timeout/ signal wakes T1 *
futex_requeue_pi_wakeup_sync() // Q_REQUEUE_PI_LOCKED
futex_hash_put()
// back to userland, on stack futex_q is garbage
/* back */
wake_up_state(q->task, TASK_NORMAL);
In this scenario futex_wait_requeue_pi() is able to leave without using
futex_q::lock_ptr for synchronization.
This can be prevented by reading futex_q::task before updating the
futex_q::requeue_state. A reference on the task_struct is not needed
because requeue_pi_wake_futex() is invoked with a spinlock_t held which
implies a RCU read section.
Even if T1 terminates immediately after, the task_struct will remain valid
during T2's wake_up_state(). A READ_ONCE on futex_q::task before
futex_requeue_pi_complete() is enough because it ensures that the variable
is read before the state is updated.
Read futex_q::task before updating the requeue state, use it for the
following wakeup.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfutex: Prevent use-after-free during requeue-PI\n\nsyzbot managed to trigger the following race:\n\n T1 T2\n\n futex_wait_requeue_pi()\n futex_do_wait()\n schedule()\n futex_requeue()\n futex_proxy_trylock_atomic()\n futex_requeue_pi_prepare()\n requeue_pi_wake_futex()\n futex_requeue_pi_complete()\n /* preempt */\n\n * timeout/ signal wakes T1 *\n\n futex_requeue_pi_wakeup_sync() // Q_REQUEUE_PI_LOCKED\n futex_hash_put()\n // back to userland, on stack futex_q is garbage\n\n /* back */\n wake_up_state(q-\u003etask, TASK_NORMAL);\n\nIn this scenario futex_wait_requeue_pi() is able to leave without using\nfutex_q::lock_ptr for synchronization.\n\nThis can be prevented by reading futex_q::task before updating the\nfutex_q::requeue_state. A reference on the task_struct is not needed\nbecause requeue_pi_wake_futex() is invoked with a spinlock_t held which\nimplies a RCU read section.\n\nEven if T1 terminates immediately after, the task_struct will remain valid\nduring T2\u0027s wake_up_state(). A READ_ONCE on futex_q::task before\nfutex_requeue_pi_complete() is enough because it ensures that the variable\nis read before the state is updated.\n\nRead futex_q::task before updating the requeue state, use it for the\nfollowing wakeup."
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{
"lang": "en",
"value": "AV:L - The race is driven entirely through the futex(2) syscall (FUTEX_WAIT_REQUEUE_PI on one thread, FUTEX_CMP_REQUEUE_PI on another), which requires local execution on the target system. There is no remote or adjacent-network path into kernel/futex/requeue.c.\nAC:L - The attacker controls both sides of the race: it creates the waiter thread with an attacker-chosen short timeout (or delivers a signal) and simultaneously issues the requeue from a second thread, and can retry the loop millions of times with CPU pinning and interrupt pressure to hit the window between futex_requeue_pi_complete() and wake_up_state(). syzbot hit it with random fuzzing, and on PREEMPT_RT the hb spinlock_t is preemptible, making the window wide.\nPR:L - Any unprivileged local user can call futex() with FUTEX_WAIT_REQUEUE_PI/FUTEX_CMP_REQUEUE_PI; do_futex() and futex_requeue() contain no capability or credential checks, and CONFIG_FUTEX_PI is default-y. The path is reachable from inside containers and sandboxes with no elevated privileges.\nUI:N - The attacker\u0027s own two threads perform every step of the exploit; no victim action, mount, or file open is involved.\nS:U - The corruption occurs in kernel memory (a stale kernel stack frame and a type-confused task_struct) and stays within the kernel\u0027s own security authority. No VM, IOMMU, or hypervisor boundary is crossed.\nC:H - This is a use-after-free read of the waiter\u0027s dead kernel stack frame, and the resulting attacker-influenced task_struct pointer is dereferenced in try_to_wake_up() (p-\u003e__state, p-\u003esaved_state, p-\u003eon_rq, p-\u003esched_class), giving an arbitrary kernel-memory read/oracle primitive. Per UAF guidance this is High.\nI:H - The stale futex_q lives on the attacker\u0027s own kernel stack, which can be refilled with controlled bytes by an immediately following syscall, so q-\u003etask becomes an attacker-chosen pointer; try_to_wake_up() then writes to it (raw_spin_lock on p-\u003epi_lock, WRITE_ONCE(p-\u003e__state, TASK_RUNNING), runqueue list manipulation) and makes an indirect call through p-\u003esched_class-\u003eenqueue_task(), a plausible local privilege-escalation path.\nA:H - In the unexploited case wake_up_state() dereferences a wild pointer from reused stack memory, causing an immediate oops/panic, and corrupting scheduler runqueue state can hang the machine. Any use-after-free of this kind is a High availability impact."
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CVE-2025-71266 (GCVE-0-2025-71266)
Vulnerability from cvelistv5
Published
2026-03-18 10:05
Modified
2026-07-14 12:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: ntfs3: check return value of indx_find to avoid infinite loop
We found an infinite loop bug in the ntfs3 file system that can lead to a
Denial-of-Service (DoS) condition.
A malformed dentry in the ntfs3 filesystem can cause the kernel to hang
during the lookup operations. By setting the HAS_SUB_NODE flag in an
INDEX_ENTRY within a directory's INDEX_ALLOCATION block and manipulating the
VCN pointer, an attacker can cause the indx_find() function to repeatedly
read the same block, allocating 4 KB of memory each time. The kernel lacks
VCN loop detection and depth limits, causing memory exhaustion and an OOM
crash.
This patch adds a return value check for fnd_push() to prevent a memory
exhaustion vulnerability caused by infinite loops. When the index exceeds the
size of the fnd->nodes array, fnd_push() returns -EINVAL. The indx_find()
function checks this return value and stops processing, preventing further
memory allocation.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 82cae269cfa953032fbb8980a7d554d60fb00b17 Version: 82cae269cfa953032fbb8980a7d554d60fb00b17 Version: 82cae269cfa953032fbb8980a7d554d60fb00b17 Version: 82cae269cfa953032fbb8980a7d554d60fb00b17 Version: 82cae269cfa953032fbb8980a7d554d60fb00b17 Version: 82cae269cfa953032fbb8980a7d554d60fb00b17 Version: 82cae269cfa953032fbb8980a7d554d60fb00b17 |
||
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CVE-2026-23351 (GCVE-0-2026-23351)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-08-05 12:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_pipapo: split gc into unlink and reclaim phase
Yiming Qian reports Use-after-free in the pipapo set type:
Under a large number of expired elements, commit-time GC can run for a very
long time in a non-preemptible context, triggering soft lockup warnings and
RCU stall reports (local denial of service).
We must split GC in an unlink and a reclaim phase.
We cannot queue elements for freeing until pointers have been swapped.
Expired elements are still exposed to both the packet path and userspace
dumpers via the live copy of the data structure.
call_rcu() does not protect us: dump operations or element lookups starting
after call_rcu has fired can still observe the free'd element, unless the
commit phase has made enough progress to swap the clone and live pointers
before any new reader has picked up the old version.
This a similar approach as done recently for the rbtree backend in commit
35f83a75529a ("netfilter: nft_set_rbtree: don't gc elements on insert").
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da Version: 3c4287f62044a90e73a561aa05fc46e62da173da |
||
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CVE-2026-23154 (GCVE-0-2026-23154)
Vulnerability from cvelistv5
Published
2026-02-14 16:01
Modified
2026-07-14 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix segmentation of forwarding fraglist GRO
This patch enhances GSO segment handling by properly checking
the SKB_GSO_DODGY flag for frag_list GSO packets, addressing
low throughput issues observed when a station accesses IPv4
servers via hotspots with an IPv6-only upstream interface.
Specifically, it fixes a bug in GSO segmentation when forwarding
GRO packets containing a frag_list. The function skb_segment_list
cannot correctly process GRO skbs that have been converted by XLAT,
since XLAT only translates the header of the head skb. Consequently,
skbs in the frag_list may remain untranslated, resulting in protocol
inconsistencies and reduced throughput.
To address this, the patch explicitly sets the SKB_GSO_DODGY flag
for GSO packets in XLAT's IPv4/IPv6 protocol translation helpers
(bpf_skb_proto_4_to_6 and bpf_skb_proto_6_to_4). This marks GSO
packets as potentially modified after protocol translation. As a
result, GSO segmentation will avoid using skb_segment_list and
instead falls back to skb_segment for packets with the SKB_GSO_DODGY
flag. This ensures that only safe and fully translated frag_list
packets are processed by skb_segment_list, resolving protocol
inconsistencies and improving throughput when forwarding GRO packets
converted by XLAT.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-21758 (GCVE-0-2025-21758)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: add RCU protection to mld_newpack()
mld_newpack() can be called without RTNL or RCU being held.
Note that we no longer can use sock_alloc_send_skb() because
ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.
Instead use alloc_skb() and charge the net->ipv6.igmp_sk
socket under RCU protection.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
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| Linux | Linux |
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CVE-2026-31494 (GCVE-0-2026-31494)
Vulnerability from cvelistv5
Published
2026-04-22 13:54
Modified
2026-08-05 12:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: macb: use the current queue number for stats
There's a potential mismatch between the memory reserved for statistics
and the amount of memory written.
gem_get_sset_count() correctly computes the number of stats based on the
active queues, whereas gem_get_ethtool_stats() indiscriminately copies
data using the maximum number of queues, and in the case the number of
active queues is less than MACB_MAX_QUEUES, this results in a OOB write
as observed in the KASAN splat.
==================================================================
BUG: KASAN: vmalloc-out-of-bounds in gem_get_ethtool_stats+0x54/0x78
[macb]
Write of size 760 at addr ffff80008080b000 by task ethtool/1027
CPU: [...]
Tainted: [E]=UNSIGNED_MODULE
Hardware name: raspberrypi rpi/rpi, BIOS 2025.10 10/01/2025
Call trace:
show_stack+0x20/0x38 (C)
dump_stack_lvl+0x80/0xf8
print_report+0x384/0x5e0
kasan_report+0xa0/0xf0
kasan_check_range+0xe8/0x190
__asan_memcpy+0x54/0x98
gem_get_ethtool_stats+0x54/0x78 [macb
926c13f3af83b0c6fe64badb21ec87d5e93fcf65]
dev_ethtool+0x1220/0x38c0
dev_ioctl+0x4ac/0xca8
sock_do_ioctl+0x170/0x1d8
sock_ioctl+0x484/0x5d8
__arm64_sys_ioctl+0x12c/0x1b8
invoke_syscall+0xd4/0x258
el0_svc_common.constprop.0+0xb4/0x240
do_el0_svc+0x48/0x68
el0_svc+0x40/0xf8
el0t_64_sync_handler+0xa0/0xe8
el0t_64_sync+0x1b0/0x1b8
The buggy address belongs to a 1-page vmalloc region starting at
0xffff80008080b000 allocated at dev_ethtool+0x11f0/0x38c0
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000
index:0xffff00000a333000 pfn:0xa333
flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff)
raw: 007fffc000000000 0000000000000000 dead000000000122 0000000000000000
raw: ffff00000a333000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff80008080b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff80008080b100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff80008080b180: 00 00 00 00 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
^
ffff80008080b200: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
ffff80008080b280: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
==================================================================
Fix it by making sure the copied size only considers the active number of
queues.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd Version: 512286bbd4b7d5b15d26ba8078c8bfd1fc1129bd |
||
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CVE-2024-58086 (GCVE-0-2024-58086)
Vulnerability from cvelistv5
Published
2025-03-06 16:28
Modified
2026-08-05 11:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/v3d: Stop active perfmon if it is being destroyed
If the active performance monitor (`v3d->active_perfmon`) is being
destroyed, stop it first. Currently, the active perfmon is not
stopped during destruction, leaving the `v3d->active_perfmon` pointer
stale. This can lead to undefined behavior and instability.
This patch ensures that the active perfmon is stopped before being
destroyed, aligning with the behavior introduced in commit
7d1fd3638ee3 ("drm/v3d: Stop the active perfmon before being destroyed").
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-38704 (GCVE-0-2025-38704)
Vulnerability from cvelistv5
Published
2025-09-04 15:32
Modified
2026-07-14 12:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer access
In the preparation stage of CPU online, if the corresponding
the rdp's->nocb_cb_kthread does not exist, will be created,
there is a situation where the rdp's rcuop kthreads creation fails,
and then de-offload this CPU's rdp, does not assign this CPU's
rdp->nocb_cb_kthread pointer, but this rdp's->nocb_gp_rdp and
rdp's->rdp_gp->nocb_gp_kthread is still valid.
This will cause the subsequent re-offload operation of this offline
CPU, which will pass the conditional check and the kthread_unpark()
will access invalid rdp's->nocb_cb_kthread pointer.
This commit therefore use rdp's->nocb_gp_kthread instead of
rdp_gp's->nocb_gp_kthread for safety check.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3a5761dc025da47960755ac64d9fbf1c32e8cd80 Version: 3a5761dc025da47960755ac64d9fbf1c32e8cd80 Version: 3a5761dc025da47960755ac64d9fbf1c32e8cd80 Version: 3a5761dc025da47960755ac64d9fbf1c32e8cd80 Version: 3a5761dc025da47960755ac64d9fbf1c32e8cd80 Version: 3a5761dc025da47960755ac64d9fbf1c32e8cd80 |
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CVE-2025-21780 (GCVE-0-2025-21780)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2026-08-05 11:54
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()
It malicious user provides a small pptable through sysfs and then
a bigger pptable, it may cause buffer overflow attack in function
smu_sys_set_pp_table().
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-37959 (GCVE-0-2025-37959)
Vulnerability from cvelistv5
Published
2025-05-20 16:01
Modified
2026-08-05 11:58
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Scrub packet on bpf_redirect_peer
When bpf_redirect_peer is used to redirect packets to a device in
another network namespace, the skb isn't scrubbed. That can lead skb
information from one namespace to be "misused" in another namespace.
As one example, this is causing Cilium to drop traffic when using
bpf_redirect_peer to redirect packets that just went through IPsec
decryption to a container namespace. The following pwru trace shows (1)
the packet path from the host's XFRM layer to the container's XFRM
layer where it's dropped and (2) the number of active skb extensions at
each function.
NETNS MARK IFACE TUPLE FUNC
4026533547 d00 eth0 10.244.3.124:35473->10.244.2.158:53 xfrm_rcv_cb
.active_extensions = (__u8)2,
4026533547 d00 eth0 10.244.3.124:35473->10.244.2.158:53 xfrm4_rcv_cb
.active_extensions = (__u8)2,
4026533547 d00 eth0 10.244.3.124:35473->10.244.2.158:53 gro_cells_receive
.active_extensions = (__u8)2,
[...]
4026533547 0 eth0 10.244.3.124:35473->10.244.2.158:53 skb_do_redirect
.active_extensions = (__u8)2,
4026534999 0 eth0 10.244.3.124:35473->10.244.2.158:53 ip_rcv
.active_extensions = (__u8)2,
4026534999 0 eth0 10.244.3.124:35473->10.244.2.158:53 ip_rcv_core
.active_extensions = (__u8)2,
[...]
4026534999 0 eth0 10.244.3.124:35473->10.244.2.158:53 udp_queue_rcv_one_skb
.active_extensions = (__u8)2,
4026534999 0 eth0 10.244.3.124:35473->10.244.2.158:53 __xfrm_policy_check
.active_extensions = (__u8)2,
4026534999 0 eth0 10.244.3.124:35473->10.244.2.158:53 __xfrm_decode_session
.active_extensions = (__u8)2,
4026534999 0 eth0 10.244.3.124:35473->10.244.2.158:53 security_xfrm_decode_session
.active_extensions = (__u8)2,
4026534999 0 eth0 10.244.3.124:35473->10.244.2.158:53 kfree_skb_reason(SKB_DROP_REASON_XFRM_POLICY)
.active_extensions = (__u8)2,
In this case, there are no XFRM policies in the container's network
namespace so the drop is unexpected. When we decrypt the IPsec packet,
the XFRM state used for decryption is set in the skb extensions. This
information is preserved across the netns switch. When we reach the
XFRM policy check in the container's netns, __xfrm_policy_check drops
the packet with LINUX_MIB_XFRMINNOPOLS because a (container-side) XFRM
policy can't be found that matches the (host-side) XFRM state used for
decryption.
This patch fixes this by scrubbing the packet when using
bpf_redirect_peer, as is done on typical netns switches via veth
devices except skb->mark and skb->tstamp are not zeroed.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-23204 (GCVE-0-2026-23204)
Vulnerability from cvelistv5
Published
2026-02-14 16:27
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: cls_u32: use skb_header_pointer_careful()
skb_header_pointer() does not fully validate negative @offset values.
Use skb_header_pointer_careful() instead.
GangMin Kim provided a report and a repro fooling u32_classify():
BUG: KASAN: slab-out-of-bounds in u32_classify+0x1180/0x11b0
net/sched/cls_u32.c:221
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d |
||
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CVE-2025-61984 (GCVE-0-2025-61984)
Vulnerability from cvelistv5
Published
2025-10-06 00:00
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-159 - Improper Handling of Invalid Use of Special Elements
Summary
ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)
References
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CVE-2026-31669 (GCVE-0-2026-31669)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-08-05 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fix slab-use-after-free in __inet_lookup_established
The ehash table lookups are lockless and rely on
SLAB_TYPESAFE_BY_RCU to guarantee socket memory stability
during RCU read-side critical sections. Both tcp_prot and
tcpv6_prot have their slab caches created with this flag
via proto_register().
However, MPTCP's mptcp_subflow_init() copies tcpv6_prot into
tcpv6_prot_override during inet_init() (fs_initcall, level 5),
before inet6_init() (module_init/device_initcall, level 6) has
called proto_register(&tcpv6_prot). At that point,
tcpv6_prot.slab is still NULL, so tcpv6_prot_override.slab
remains NULL permanently.
This causes MPTCP v6 subflow child sockets to be allocated via
kmalloc (falling into kmalloc-4k) instead of the TCPv6 slab
cache. The kmalloc-4k cache lacks SLAB_TYPESAFE_BY_RCU, so
when these sockets are freed without SOCK_RCU_FREE (which is
cleared for child sockets by design), the memory can be
immediately reused. Concurrent ehash lookups under
rcu_read_lock can then access freed memory, triggering a
slab-use-after-free in __inet_lookup_established.
Fix this by splitting the IPv6-specific initialization out of
mptcp_subflow_init() into a new mptcp_subflow_v6_init(), called
from mptcp_proto_v6_init() before protocol registration. This
ensures tcpv6_prot_override.slab correctly inherits the
SLAB_TYPESAFE_BY_RCU slab cache.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b19bc2945b40b9fd38e835700907ffe8534ef0de Version: b19bc2945b40b9fd38e835700907ffe8534ef0de Version: b19bc2945b40b9fd38e835700907ffe8534ef0de Version: b19bc2945b40b9fd38e835700907ffe8534ef0de Version: b19bc2945b40b9fd38e835700907ffe8534ef0de Version: b19bc2945b40b9fd38e835700907ffe8534ef0de Version: b19bc2945b40b9fd38e835700907ffe8534ef0de |
||
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CVE-2026-31752 (GCVE-0-2026-31752)
Vulnerability from cvelistv5
Published
2026-05-01 14:14
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bridge: br_nd_send: validate ND option lengths
br_nd_send() walks ND options according to option-provided lengths.
A malformed option can make the parser advance beyond the computed
option span or use a too-short source LLADDR option payload.
Validate option lengths against the remaining NS option area before
advancing, and only read source LLADDR when the option is large enough
for an Ethernet address.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 Version: ed842faeb2bd49256f00485402f3113205f91d30 |
||
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CVE-2026-23103 (GCVE-0-2026-23103)
Vulnerability from cvelistv5
Published
2026-02-04 16:08
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipvlan: Make the addrs_lock be per port
Make the addrs_lock be per port, not per ipvlan dev.
Initial code seems to be written in the assumption,
that any address change must occur under RTNL.
But it is not so for the case of IPv6. So
1) Introduce per-port addrs_lock.
2) It was needed to fix places where it was forgotten
to take lock (ipvlan_open/ipvlan_close)
This appears to be a very minor problem though.
Since it's highly unlikely that ipvlan_add_addr() will
be called on 2 CPU simultaneously. But nevertheless,
this could cause:
1) False-negative of ipvlan_addr_busy(): one interface
iterated through all port->ipvlans + ipvlan->addrs
under some ipvlan spinlock, and another added IP
under its own lock. Though this is only possible
for IPv6, since looks like only ipvlan_addr6_event() can be
called without rtnl_lock.
2) Race since ipvlan_ht_addr_add(port) is called under
different ipvlan->addrs_lock locks
This should not affect performance, since add/remove IP
is a rare situation and spinlock is not taken on fast
paths.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8230819494b3bf284ca7262ac5f877333147b937 Version: 8230819494b3bf284ca7262ac5f877333147b937 Version: 8230819494b3bf284ca7262ac5f877333147b937 Version: 8230819494b3bf284ca7262ac5f877333147b937 Version: 8230819494b3bf284ca7262ac5f877333147b937 Version: 8230819494b3bf284ca7262ac5f877333147b937 Version: 8230819494b3bf284ca7262ac5f877333147b937 |
||
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}
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CVE-2024-26783 (GCVE-0-2024-26783)
Vulnerability from cvelistv5
Published
2024-04-04 08:20
Modified
2026-07-14 12:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index
With numa balancing on, when a numa system is running where a numa node
doesn't have its local memory so it has no managed zones, the following
oops has been observed. It's because wakeup_kswapd() is called with a
wrong zone index, -1. Fixed it by checking the index before calling
wakeup_kswapd().
> BUG: unable to handle page fault for address: 00000000000033f3
> #PF: supervisor read access in kernel mode
> #PF: error_code(0x0000) - not-present page
> PGD 0 P4D 0
> Oops: 0000 [#1] PREEMPT SMP NOPTI
> CPU: 2 PID: 895 Comm: masim Not tainted 6.6.0-dirty #255
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
> RIP: 0010:wakeup_kswapd (./linux/mm/vmscan.c:7812)
> Code: (omitted)
> RSP: 0000:ffffc90004257d58 EFLAGS: 00010286
> RAX: ffffffffffffffff RBX: ffff88883fff0480 RCX: 0000000000000003
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88883fff0480
> RBP: ffffffffffffffff R08: ff0003ffffffffff R09: ffffffffffffffff
> R10: ffff888106c95540 R11: 0000000055555554 R12: 0000000000000003
> R13: 0000000000000000 R14: 0000000000000000 R15: ffff88883fff0940
> FS: 00007fc4b8124740(0000) GS:ffff888827c00000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00000000000033f3 CR3: 000000026cc08004 CR4: 0000000000770ee0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> PKRU: 55555554
> Call Trace:
> <TASK>
> ? __die
> ? page_fault_oops
> ? __pte_offset_map_lock
> ? exc_page_fault
> ? asm_exc_page_fault
> ? wakeup_kswapd
> migrate_misplaced_page
> __handle_mm_fault
> handle_mm_fault
> do_user_addr_fault
> exc_page_fault
> asm_exc_page_fault
> RIP: 0033:0x55b897ba0808
> Code: (omitted)
> RSP: 002b:00007ffeefa821a0 EFLAGS: 00010287
> RAX: 000055b89983acd0 RBX: 00007ffeefa823f8 RCX: 000055b89983acd0
> RDX: 00007fc2f8122010 RSI: 0000000000020000 RDI: 000055b89983acd0
> RBP: 00007ffeefa821a0 R08: 0000000000000037 R09: 0000000000000075
> R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
> R13: 00007ffeefa82410 R14: 000055b897ba5dd8 R15: 00007fc4b8340000
> </TASK>
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-39978 (GCVE-0-2025-39978)
Vulnerability from cvelistv5
Published
2025-10-15 07:55
Modified
2026-08-05 12:06
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node"
and then dereferences it on the next line. Two lines later, we take
a mutex so I don't think this is an RCU safe region. Re-order it to do
the dereferences before queuing up the free.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-23003 (GCVE-0-2026-23003)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()
Blamed commit did not take care of VLAN encapsulations
as spotted by syzbot [1].
Use skb_vlan_inet_prepare() instead of pskb_inet_may_pull().
[1]
BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]
BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]
BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321
__INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]
INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]
IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321
ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729
__ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860
ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903
gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1
ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input.c:438
ip6_input_finish+0x1f4/0x4a0 net/ipv6/ip6_input.c:489
NF_HOOK include/linux/netfilter.h:318 [inline]
ip6_input+0x9c/0x330 net/ipv6/ip6_input.c:500
ip6_mc_input+0x7ca/0xc10 net/ipv6/ip6_input.c:590
dst_input include/net/dst.h:474 [inline]
ip6_rcv_finish+0x958/0x990 net/ipv6/ip6_input.c:79
NF_HOOK include/linux/netfilter.h:318 [inline]
ipv6_rcv+0xf1/0x3c0 net/ipv6/ip6_input.c:311
__netif_receive_skb_one_core net/core/dev.c:6139 [inline]
__netif_receive_skb+0x1df/0xac0 net/core/dev.c:6252
netif_receive_skb_internal net/core/dev.c:6338 [inline]
netif_receive_skb+0x57/0x630 net/core/dev.c:6397
tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485
tun_get_user+0x5c0e/0x6c60 drivers/net/tun.c:1953
tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0xbe2/0x15d0 fs/read_write.c:686
ksys_write fs/read_write.c:738 [inline]
__do_sys_write fs/read_write.c:749 [inline]
__se_sys_write fs/read_write.c:746 [inline]
__x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746
x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was created at:
slab_post_alloc_hook mm/slub.c:4960 [inline]
slab_alloc_node mm/slub.c:5263 [inline]
kmem_cache_alloc_node_noprof+0x9e7/0x17a0 mm/slub.c:5315
kmalloc_reserve+0x13c/0x4b0 net/core/skbuff.c:586
__alloc_skb+0x805/0x1040 net/core/skbuff.c:690
alloc_skb include/linux/skbuff.h:1383 [inline]
alloc_skb_with_frags+0xc5/0xa60 net/core/skbuff.c:6712
sock_alloc_send_pskb+0xacc/0xc60 net/core/sock.c:2995
tun_alloc_skb drivers/net/tun.c:1461 [inline]
tun_get_user+0x1142/0x6c60 drivers/net/tun.c:1794
tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0xbe2/0x15d0 fs/read_write.c:686
ksys_write fs/read_write.c:738 [inline]
__do_sys_write fs/read_write.c:749 [inline]
__se_sys_write fs/read_write.c:746 [inline]
__x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746
x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
CPU: 0 UID: 0 PID: 6465 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(none)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a9bc32879a08f23cdb80a48c738017e39aea1080 Version: af6b5c50d47ab43e5272ad61935d0ed2e264d3f0 Version: d54e4da98bbfa8c257bdca94c49652d81d18a4d8 Version: 350a6640fac4b53564ec20aa3f4a0922cb0ba5e6 Version: 8d975c15c0cd744000ca386247432d57b21f9df0 Version: 8d975c15c0cd744000ca386247432d57b21f9df0 Version: 8d975c15c0cd744000ca386247432d57b21f9df0 Version: c835df3bcc14858ae9b27315dd7de76370b94f3a Version: 5.10.210 ≤ Version: 5.15.149 ≤ Version: 6.1.77 ≤ Version: 6.6.16 ≤ Version: 6.7.4 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()\n\nBlamed commit did not take care of VLAN encapsulations\nas spotted by syzbot [1].\n\nUse skb_vlan_inet_prepare() instead of pskb_inet_may_pull().\n\n[1]\n BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321\n __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321\n ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729\n __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860\n ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903\n gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1\n ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input.c:438\n ip6_input_finish+0x1f4/0x4a0 net/ipv6/ip6_input.c:489\n NF_HOOK include/linux/netfilter.h:318 [inline]\n ip6_input+0x9c/0x330 net/ipv6/ip6_input.c:500\n ip6_mc_input+0x7ca/0xc10 net/ipv6/ip6_input.c:590\n dst_input include/net/dst.h:474 [inline]\n ip6_rcv_finish+0x958/0x990 net/ipv6/ip6_input.c:79\n NF_HOOK include/linux/netfilter.h:318 [inline]\n ipv6_rcv+0xf1/0x3c0 net/ipv6/ip6_input.c:311\n __netif_receive_skb_one_core net/core/dev.c:6139 [inline]\n __netif_receive_skb+0x1df/0xac0 net/core/dev.c:6252\n netif_receive_skb_internal net/core/dev.c:6338 [inline]\n netif_receive_skb+0x57/0x630 net/core/dev.c:6397\n tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485\n tun_get_user+0x5c0e/0x6c60 drivers/net/tun.c:1953\n tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999\n new_sync_write fs/read_write.c:593 [inline]\n vfs_write+0xbe2/0x15d0 fs/read_write.c:686\n ksys_write fs/read_write.c:738 [inline]\n __do_sys_write fs/read_write.c:749 [inline]\n __se_sys_write fs/read_write.c:746 [inline]\n __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746\n x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:4960 [inline]\n slab_alloc_node mm/slub.c:5263 [inline]\n kmem_cache_alloc_node_noprof+0x9e7/0x17a0 mm/slub.c:5315\n kmalloc_reserve+0x13c/0x4b0 net/core/skbuff.c:586\n __alloc_skb+0x805/0x1040 net/core/skbuff.c:690\n alloc_skb include/linux/skbuff.h:1383 [inline]\n alloc_skb_with_frags+0xc5/0xa60 net/core/skbuff.c:6712\n sock_alloc_send_pskb+0xacc/0xc60 net/core/sock.c:2995\n tun_alloc_skb drivers/net/tun.c:1461 [inline]\n tun_get_user+0x1142/0x6c60 drivers/net/tun.c:1794\n tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999\n new_sync_write fs/read_write.c:593 [inline]\n vfs_write+0xbe2/0x15d0 fs/read_write.c:686\n ksys_write fs/read_write.c:738 [inline]\n __do_sys_write fs/read_write.c:749 [inline]\n __se_sys_write fs/read_write.c:746 [inline]\n __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746\n x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nCPU: 0 UID: 0 PID: 6465 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(none)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025"
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CVE-2026-31664 (GCVE-0-2026-31664)
Vulnerability from cvelistv5
Published
2026-04-24 14:45
Modified
2026-07-14 12:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfrm: clear trailing padding in build_polexpire()
build_expire() clears the trailing padding bytes of struct
xfrm_user_expire after setting the hard field via memset_after(),
but the analogous function build_polexpire() does not do this for
struct xfrm_user_polexpire.
The padding bytes after the __u8 hard field are left
uninitialized from the heap allocation, and are then sent to
userspace via netlink multicast to XFRMNLGRP_EXPIRE listeners,
leaking kernel heap memory contents.
Add the missing memset_after() call, matching build_expire().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2025-22107 (GCVE-0-2025-22107)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-07-14 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry()
There are actually 2 problems:
- deleting the last element doesn't require the memmove of elements
[i + 1, end) over it. Actually, element i+1 is out of bounds.
- The memmove itself should move size - i - 1 elements, because the last
element is out of bounds.
The out-of-bounds element still remains out of bounds after being
accessed, so the problem is only that we touch it, not that it becomes
in active use. But I suppose it can lead to issues if the out-of-bounds
element is part of an unmapped page.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2024-57917 (GCVE-0-2024-57917)
Vulnerability from cvelistv5
Published
2025-01-19 11:52
Modified
2026-07-14 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
topology: Keep the cpumask unchanged when printing cpumap
During fuzz testing, the following warning was discovered:
different return values (15 and 11) from vsnprintf("%*pbl
", ...)
test:keyward is WARNING in kvasprintf
WARNING: CPU: 55 PID: 1168477 at lib/kasprintf.c:30 kvasprintf+0x121/0x130
Call Trace:
kvasprintf+0x121/0x130
kasprintf+0xa6/0xe0
bitmap_print_to_buf+0x89/0x100
core_siblings_list_read+0x7e/0xb0
kernfs_file_read_iter+0x15b/0x270
new_sync_read+0x153/0x260
vfs_read+0x215/0x290
ksys_read+0xb9/0x160
do_syscall_64+0x56/0x100
entry_SYSCALL_64_after_hwframe+0x78/0xe2
The call trace shows that kvasprintf() reported this warning during the
printing of core_siblings_list. kvasprintf() has several steps:
(1) First, calculate the length of the resulting formatted string.
(2) Allocate a buffer based on the returned length.
(3) Then, perform the actual string formatting.
(4) Check whether the lengths of the formatted strings returned in
steps (1) and (2) are consistent.
If the core_cpumask is modified between steps (1) and (3), the lengths
obtained in these two steps may not match. Indeed our test includes cpu
hotplugging, which should modify core_cpumask while printing.
To fix this issue, cache the cpumask into a temporary variable before
calling cpumap_print_{list, cpumask}_to_buf(), to keep it unchanged
during the printing process.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-38192 (GCVE-0-2025-38192)
Vulnerability from cvelistv5
Published
2025-07-04 13:37
Modified
2026-08-05 12:00
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: clear the dst when changing skb protocol
A not-so-careful NAT46 BPF program can crash the kernel
if it indiscriminately flips ingress packets from v4 to v6:
BUG: kernel NULL pointer dereference, address: 0000000000000000
ip6_rcv_core (net/ipv6/ip6_input.c:190:20)
ipv6_rcv (net/ipv6/ip6_input.c:306:8)
process_backlog (net/core/dev.c:6186:4)
napi_poll (net/core/dev.c:6906:9)
net_rx_action (net/core/dev.c:7028:13)
do_softirq (kernel/softirq.c:462:3)
netif_rx (net/core/dev.c:5326:3)
dev_loopback_xmit (net/core/dev.c:4015:2)
ip_mc_finish_output (net/ipv4/ip_output.c:363:8)
NF_HOOK (./include/linux/netfilter.h:314:9)
ip_mc_output (net/ipv4/ip_output.c:400:5)
dst_output (./include/net/dst.h:459:9)
ip_local_out (net/ipv4/ip_output.c:130:9)
ip_send_skb (net/ipv4/ip_output.c:1496:8)
udp_send_skb (net/ipv4/udp.c:1040:8)
udp_sendmsg (net/ipv4/udp.c:1328:10)
The output interface has a 4->6 program attached at ingress.
We try to loop the multicast skb back to the sending socket.
Ingress BPF runs as part of netif_rx(), pushes a valid v6 hdr
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Try to preserve metadata dsts, those may carry non-routing
metadata.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2026-31389 (GCVE-0-2026-31389)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-08-05 12:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: fix use-after-free on controller registration failure
Make sure to deregister from driver core also in the unlikely event that
per-cpu statistics allocation fails during controller registration to
avoid use-after-free (of driver resources) and unclocked register
accesses.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 |
||
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19.10",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.0",
"versionStartIncluding": "6.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix use-after-free on controller registration failure\n\nMake sure to deregister from driver core also in the unlikely event that\nper-cpu statistics allocation fails during controller registration to\navoid use-after-free (of driver resources) and unclocked register\naccesses."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable SPI controller registration path is reachable from local driver probe/reprobe paths, including USB-to-SPI controllers such as CH341 via usbfs reconnect or equivalent local device binding paths. It is not reachable by remote network traffic.\nAC:L - Although the failing per-CPU allocation is an uncommon error path, a local attacker can apply memory pressure and retry controller registration; there is no race requiring conditions outside the attacker\u0027s control.\nPR:L - Triggering a reprobe through usbfs or similar local device-management interfaces requires local access to the device node, but not real init-namespace root privileges in the strongest reasonable scenario. The resulting stale SPI controller sysfs attributes are also locally accessible.\nUI:N - No victim user action is required once the attacker can trigger the local probe path. The attacker performs the registration/reprobe and follow-on access themselves.\nS:U - The bug corrupts or exposes kernel SPI/driver-core state within the same kernel security authority. There is no VM escape, IOMMU bypass, or cross-authority boundary change.\nC:H - This is a use-after-free of SPI controller or driver resources left registered in driver core after probe failure. Per the kernel scoring guidance, UAF conditions are treated as capable of enabling kernel memory disclosure.\nI:H - The stale registered controller can reference freed driver resources and callbacks, creating memory-corruption/use-after-free conditions. Per the kernel scoring guidance, UAF is treated as potentially enabling arbitrary write or control-flow compromise.\nA:H - The bug can cause kernel crashes through stale sysfs/device access, NULL dereference, or unclocked register accesses after failed registration. Any such kernel oops or panic is high availability impact."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:22:02.670Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086b"
},
{
"url": "https://git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051"
},
{
"url": "https://git.kernel.org/stable/c/afe27c1f43aa57530011f419be6ddf71306565d2"
},
{
"url": "https://git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7"
},
{
"url": "https://git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5ba"
},
{
"url": "https://git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9"
}
],
"title": "spi: fix use-after-free on controller registration failure",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-31389",
"datePublished": "2026-04-03T15:15:55.068Z",
"dateReserved": "2026-03-09T15:48:24.084Z",
"dateUpdated": "2026-08-05T12:22:02.670Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-68291 (GCVE-0-2025-68291)
Vulnerability from cvelistv5
Published
2025-12-16 15:06
Modified
2026-07-14 12:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: Initialise rcv_mss before calling tcp_send_active_reset() in mptcp_do_fastclose().
syzbot reported divide-by-zero in __tcp_select_window() by
MPTCP socket. [0]
We had a similar issue for the bare TCP and fixed in commit
499350a5a6e7 ("tcp: initialize rcv_mss to TCP_MIN_MSS instead
of 0").
Let's apply the same fix to mptcp_do_fastclose().
[0]:
Oops: divide error: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6068 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__tcp_select_window+0x824/0x1320 net/ipv4/tcp_output.c:3336
Code: ff ff ff 44 89 f1 d3 e0 89 c1 f7 d1 41 01 cc 41 21 c4 e9 a9 00 00 00 e8 ca 49 01 f8 e9 9c 00 00 00 e8 c0 49 01 f8 44 89 e0 99 <f7> 7c 24 1c 41 29 d4 48 bb 00 00 00 00 00 fc ff df e9 80 00 00 00
RSP: 0018:ffffc90003017640 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807b469e40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003017730 R08: ffff888033268143 R09: 1ffff1100664d028
R10: dffffc0000000000 R11: ffffed100664d029 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 000055557faa0500(0000) GS:ffff888126135000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f64a1912ff8 CR3: 0000000072122000 CR4: 00000000003526f0
Call Trace:
<TASK>
tcp_select_window net/ipv4/tcp_output.c:281 [inline]
__tcp_transmit_skb+0xbc7/0x3aa0 net/ipv4/tcp_output.c:1568
tcp_transmit_skb net/ipv4/tcp_output.c:1649 [inline]
tcp_send_active_reset+0x2d1/0x5b0 net/ipv4/tcp_output.c:3836
mptcp_do_fastclose+0x27e/0x380 net/mptcp/protocol.c:2793
mptcp_disconnect+0x238/0x710 net/mptcp/protocol.c:3253
mptcp_sendmsg_fastopen+0x2f8/0x580 net/mptcp/protocol.c:1776
mptcp_sendmsg+0x1774/0x1980 net/mptcp/protocol.c:1855
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg+0xe5/0x270 net/socket.c:742
__sys_sendto+0x3bd/0x520 net/socket.c:2244
__do_sys_sendto net/socket.c:2251 [inline]
__se_sys_sendto net/socket.c:2247 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2247
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f66e998f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffff9acedb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f66e9be5fa0 RCX: 00007f66e998f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffff9acee10 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f66e9be5fa0 R14: 00007f66e9be5fa0 R15: 0000000000000006
</TASK>
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
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"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T12:44:00.032Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/mptcp/protocol.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"versionType": "git"
},
{
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"status": "affected",
"version": "3a13454fd098ed51e733958488f8ec62859a9ed8",
"versionType": "git"
},
{
"lessThan": "05f5e26d488cdc7abc2a826cf1071782d5a21203",
"status": "affected",
"version": "f6fb2cbc91a81178dea23d463503b4525a76825d",
"versionType": "git"
},
{
"lessThan": "88163f85d59b4164884df900ee171720fd26686b",
"status": "affected",
"version": "c4f7b0916b95fd2226e5ab98882482b08f52e1c0",
"versionType": "git"
},
{
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"versionType": "git"
}
]
},
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"programFiles": [
"net/mptcp/protocol.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6.1.160",
"status": "affected",
"version": "6.1.159",
"versionType": "semver"
},
{
"lessThan": "6.6.120",
"status": "affected",
"version": "6.6.119",
"versionType": "semver"
},
{
"lessThan": "6.12.61",
"status": "affected",
"version": "6.12.60",
"versionType": "semver"
},
{
"lessThan": "6.17.11",
"status": "affected",
"version": "6.17.10",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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}
],
"negate": false,
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}
]
}
],
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: Initialise rcv_mss before calling tcp_send_active_reset() in mptcp_do_fastclose().\n\nsyzbot reported divide-by-zero in __tcp_select_window() by\nMPTCP socket. [0]\n\nWe had a similar issue for the bare TCP and fixed in commit\n499350a5a6e7 (\"tcp: initialize rcv_mss to TCP_MIN_MSS instead\nof 0\").\n\nLet\u0027s apply the same fix to mptcp_do_fastclose().\n\n[0]:\nOops: divide error: 0000 [#1] SMP KASAN PTI\nCPU: 0 UID: 0 PID: 6068 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025\nRIP: 0010:__tcp_select_window+0x824/0x1320 net/ipv4/tcp_output.c:3336\nCode: ff ff ff 44 89 f1 d3 e0 89 c1 f7 d1 41 01 cc 41 21 c4 e9 a9 00 00 00 e8 ca 49 01 f8 e9 9c 00 00 00 e8 c0 49 01 f8 44 89 e0 99 \u003cf7\u003e 7c 24 1c 41 29 d4 48 bb 00 00 00 00 00 fc ff df e9 80 00 00 00\nRSP: 0018:ffffc90003017640 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807b469e40\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ffffc90003017730 R08: ffff888033268143 R09: 1ffff1100664d028\nR10: dffffc0000000000 R11: ffffed100664d029 R12: 0000000000000000\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\nFS: 000055557faa0500(0000) GS:ffff888126135000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f64a1912ff8 CR3: 0000000072122000 CR4: 00000000003526f0\nCall Trace:\n \u003cTASK\u003e\n tcp_select_window net/ipv4/tcp_output.c:281 [inline]\n __tcp_transmit_skb+0xbc7/0x3aa0 net/ipv4/tcp_output.c:1568\n tcp_transmit_skb net/ipv4/tcp_output.c:1649 [inline]\n tcp_send_active_reset+0x2d1/0x5b0 net/ipv4/tcp_output.c:3836\n mptcp_do_fastclose+0x27e/0x380 net/mptcp/protocol.c:2793\n mptcp_disconnect+0x238/0x710 net/mptcp/protocol.c:3253\n mptcp_sendmsg_fastopen+0x2f8/0x580 net/mptcp/protocol.c:1776\n mptcp_sendmsg+0x1774/0x1980 net/mptcp/protocol.c:1855\n sock_sendmsg_nosec net/socket.c:727 [inline]\n __sock_sendmsg+0xe5/0x270 net/socket.c:742\n __sys_sendto+0x3bd/0x520 net/socket.c:2244\n __do_sys_sendto net/socket.c:2251 [inline]\n __se_sys_sendto net/socket.c:2247 [inline]\n __x64_sys_sendto+0xde/0x100 net/socket.c:2247\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f66e998f749\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffff9acedb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c\nRAX: ffffffffffffffda RBX: 00007f66e9be5fa0 RCX: 00007f66e998f749\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\nRBP: 00007ffff9acee10 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001\nR13: 00007f66e9be5fa0 R14: 00007f66e9be5fa0 R15: 0000000000000006\n \u003c/TASK\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:50:19.280Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/46b8b58f93f1b383c3840fc6e8fab6c3bce9295f"
},
{
"url": "https://git.kernel.org/stable/c/eee39f83246a81d970a9ecb7392b7ab74e660094"
},
{
"url": "https://git.kernel.org/stable/c/05f5e26d488cdc7abc2a826cf1071782d5a21203"
},
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"url": "https://git.kernel.org/stable/c/88163f85d59b4164884df900ee171720fd26686b"
},
{
"url": "https://git.kernel.org/stable/c/f07f4ea53e22429c84b20832fa098b5ecc0d4e35"
}
],
"title": "mptcp: Initialise rcv_mss before calling tcp_send_active_reset() in mptcp_do_fastclose().",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2025-68291",
"datePublished": "2025-12-16T15:06:12.095Z",
"dateReserved": "2025-12-16T14:48:05.292Z",
"dateUpdated": "2026-07-14T12:44:00.032Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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