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CERTFR-2026-AVI-1161
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, 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 | ||
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 8.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian 8 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 8.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems 8 s390x | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 8 aarch64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 8 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time for NFV 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 9.4 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 8 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64 |
References
| Title | Publication Time | Tags | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Red Hat Enterprise Linux Server - AUS 8.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian 8 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 8.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems 8 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 8 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 8 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time for NFV 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 9.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 8 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
}
],
"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-2026-53091",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53091"
},
{
"name": "CVE-2026-68343",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-68343"
},
{
"name": "CVE-2026-53002",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53002"
},
{
"name": "CVE-2026-64268",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64268"
},
{
"name": "CVE-2026-63886",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63886"
},
{
"name": "CVE-2026-46117",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46117"
},
{
"name": "CVE-2026-63801",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63801"
},
{
"name": "CVE-2026-64304",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64304"
},
{
"name": "CVE-2026-53071",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53071"
},
{
"name": "CVE-2026-52942",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52942"
},
{
"name": "CVE-2026-72129",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-72129"
},
{
"name": "CVE-2026-64563",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64563"
},
{
"name": "CVE-2026-53006",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53006"
},
{
"name": "CVE-2026-46099",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46099"
},
{
"name": "CVE-2026-43493",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43493"
},
{
"name": "CVE-2026-46120",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46120"
},
{
"name": "CVE-2026-68315",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-68315"
},
{
"name": "CVE-2026-53009",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53009"
},
{
"name": "CVE-2026-68376",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-68376"
},
{
"name": "CVE-2026-64191",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64191"
},
{
"name": "CVE-2026-68117",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-68117"
},
{
"name": "CVE-2025-68745",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68745"
},
{
"name": "CVE-2026-45998",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45998"
},
{
"name": "CVE-2026-46145",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46145"
},
{
"name": "CVE-2026-64113",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64113"
},
{
"name": "CVE-2025-38403",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38403"
},
{
"name": "CVE-2025-40149",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40149"
},
{
"name": "CVE-2026-46056",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46056"
},
{
"name": "CVE-2026-46149",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46149"
},
{
"name": "CVE-2026-63971",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63971"
},
{
"name": "CVE-2026-53016",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53016"
},
{
"name": "CVE-2026-52986",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52986"
},
{
"name": "CVE-2026-17523",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-17523"
},
{
"name": "CVE-2026-31411",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31411"
},
{
"name": "CVE-2026-68300",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-68300"
},
{
"name": "CVE-2026-43114",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43114"
},
{
"name": "CVE-2026-53246",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53246"
},
{
"name": "CVE-2026-64015",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64015"
},
{
"name": "CVE-2026-74480",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-74480"
},
{
"name": "CVE-2021-47600",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47600"
},
{
"name": "CVE-2026-53196",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53196"
},
{
"name": "CVE-2026-64007",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64007"
},
{
"name": "CVE-2026-46155",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46155"
},
{
"name": "CVE-2026-52917",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52917"
},
{
"name": "CVE-2023-52924",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52924"
}
],
"initial_release_date": "2026-09-11T00:00:00",
"last_revision_date": "2026-09-11T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1161",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-09-11T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux de Red Hat. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Red Hat",
"vendor_advisories": [
{
"published_at": "2026-09-09",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:66000",
"url": "https://access.redhat.com/errata/RHSA-2026:66000"
},
{
"published_at": "2026-09-08",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:64770",
"url": "https://access.redhat.com/errata/RHSA-2026:64770"
},
{
"published_at": "2026-09-09",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:65712",
"url": "https://access.redhat.com/errata/RHSA-2026:65712"
},
{
"published_at": "2026-09-10",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:66325",
"url": "https://access.redhat.com/errata/RHSA-2026:66325"
},
{
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{
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"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:65710",
"url": "https://access.redhat.com/errata/RHSA-2026:65710"
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{
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:64767"
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:63538"
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}
CVE-2026-46056 (GCVE-0-2026-46056)
Vulnerability from cvelistv5
Published
2026-05-27 12:57
Modified
2026-08-05 12:29
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
hci_conn lookup and field access must be covered by hdev lock in
hci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise
the connection can be freed concurrently.
Extend the hci_dev_lock critical section to cover all conn usage in both
handlers.
Keep the existing keypress notification behavior unchanged by routing
the early exits through a common unlock path.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 92a25256f142d55e25f9959441cea6ddeabae57e Version: 92a25256f142d55e25f9959441cea6ddeabae57e Version: 92a25256f142d55e25f9959441cea6ddeabae57e Version: 92a25256f142d55e25f9959441cea6ddeabae57e Version: 92a25256f142d55e25f9959441cea6ddeabae57e Version: 92a25256f142d55e25f9959441cea6ddeabae57e Version: 92a25256f142d55e25f9959441cea6ddeabae57e Version: 92a25256f142d55e25f9959441cea6ddeabae57e |
||
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CVE-2026-63801 (GCVE-0-2026-63801)
Vulnerability from cvelistv5
Published
2026-07-19 12:02
Modified
2026-08-17 04:51
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done
tipc_aead_decrypt() goes straight from tipc_bearer_hold(b) to
crypto_aead_decrypt(req) without taking a reference on the netns, unlike
the encrypt path. When crypto_aead_decrypt() is offloaded asynchronously
(e.g. the SIMD aead wrapper queuing to cryptd), the cryptd worker runs
tipc_aead_decrypt_done() later. If the bearer's netns is torn down in the
meantime, cleanup_net() -> tipc_exit_net() -> tipc_crypto_stop() frees the
per-netns tipc_crypto, and the completion then reads it:
tipc_aead_decrypt_done() dereferences aead->crypto->stats and
aead->crypto->net, and tipc_crypto_rcv_complete() dereferences
aead->crypto->aead[] and the node table -- reading freed memory.
Decoded KASAN splat (v7.1-rc7, CONFIG_KASAN_INLINE + TIPC + TIPC_CRYPTO):
BUG: KASAN: slab-use-after-free in tipc_aead_decrypt_done (net/tipc/crypto.c:999)
Read of size 8 at addr ffff8881056258a8 by task kworker/u16:2/51
Workqueue: events_unbound
Call Trace:
tipc_aead_decrypt_done (net/tipc/crypto.c:999)
process_one_work (kernel/workqueue.c:3314)
worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
kthread (kernel/kthread.c:436)
ret_from_fork (arch/x86/kernel/process.c:158)
ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
Allocated by task 169:
__kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
tipc_crypto_start (net/tipc/crypto.c:1502)
tipc_init_net (net/tipc/core.c:72)
ops_init (net/core/net_namespace.c:137)
setup_net (net/core/net_namespace.c:446)
copy_net_ns (net/core/net_namespace.c:579)
create_new_namespaces (kernel/nsproxy.c:132)
__x64_sys_unshare (kernel/fork.c:3316)
do_syscall_64 (arch/x86/entry/syscall_64.c:63)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
Freed by task 8:
kfree (mm/slub.c:6566)
tipc_exit_net (net/tipc/core.c:119)
cleanup_net (net/core/net_namespace.c:704)
process_one_work (kernel/workqueue.c:3314)
kthread (kernel/kthread.c:436)
This is the same class of bug that commit e279024617134 ("net/tipc: fix
slab-use-after-free Read in tipc_aead_encrypt_done") fixed for the encrypt
side. The encrypt path takes maybe_get_net(aead->crypto->net) before
crypto_aead_encrypt() and drops it with put_net() on the synchronous
return paths and in tipc_aead_encrypt_done(); the -EINPROGRESS/-EBUSY
return keeps the reference for the async callback to release. The decrypt
path was left without the equivalent guard.
Mirror the encrypt-side fix on the decrypt path: take a net reference
before crypto_aead_decrypt() (failing with -ENODEV and the matching
bearer put if it cannot be acquired), keep it across the
-EINPROGRESS/-EBUSY async return, and drop it with put_net() on the
synchronous success/error return and at the end of
tipc_aead_decrypt_done().
Reproduced under KASAN on v7.1-rc7: a UDP bearer with a cluster key is
flooded with crafted encrypted frames from an unknown peer (driving the
cluster-key decrypt path) while the bearer's netns is repeatedly torn
down. The completion must run asynchronously to outlive
tipc_crypto_stop(); on x86 the stock aesni gcm(aes) now decrypts
synchronously, so the async path was exercised via cryptd offload. The
unguarded aead->crypto dereference in tipc_aead_decrypt_done() is the
unpatched upstream path; tipc_aead_decrypt() still lacks
maybe_get_net(aead->crypto->net), so the completion can outlive the free
on any config where crypto_aead_decrypt() goes async.
Found by 0sec automated security-research tooling (https://0sec.ai).
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 |
||
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CVE-2025-38403 (GCVE-0-2025-38403)
Vulnerability from cvelistv5
Published
2025-07-25 13:08
Modified
2026-06-11 18:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vsock/vmci: Clear the vmci transport packet properly when initializing it
In vmci_transport_packet_init memset the vmci_transport_packet before
populating the fields to avoid any uninitialised data being left in the
structure.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d021c344051af91f42c5ba9fdedc176740cbd238 Version: d021c344051af91f42c5ba9fdedc176740cbd238 Version: d021c344051af91f42c5ba9fdedc176740cbd238 Version: d021c344051af91f42c5ba9fdedc176740cbd238 Version: d021c344051af91f42c5ba9fdedc176740cbd238 Version: d021c344051af91f42c5ba9fdedc176740cbd238 Version: d021c344051af91f42c5ba9fdedc176740cbd238 Version: d021c344051af91f42c5ba9fdedc176740cbd238 |
||
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CVE-2026-52986 (GCVE-0-2026-52986)
Vulnerability from cvelistv5
Published
2026-06-24 16:29
Modified
2026-09-08 08:49
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_sip: don't use simple_strtoul
Replace unsafe port parsing in epaddr_len(), ct_sip_parse_header_uri(),
and ct_sip_parse_request() with a new sip_parse_port() helper that
validates each digit against the buffer limit, eliminating the use of
simple_strtoul() which assumes NUL-terminated strings.
The previous code dereferenced pointers without bounds checks after
sip_parse_addr() and relied on simple_strtoul() on non-NUL-terminated
skb data. A port that reaches the buffer limit without a trailing
character is also rejected as malformed.
Also get rid of all simple_strtoul() usage in conntrack, prefer a
stricter version instead. There are intentional changes:
- Bail out if number is > UINT_MAX and indicate a failure, same for
too long sequences.
While we do accept 05535 as port 5535, we will not accept e.g.
'sip:10.0.0.1:005060'. While its syntactically valid under RFC 3261,
we should restrict this to not waste cycles when presented with
malformed packets with 64k '0' characters.
- Force base 10 in ct_sip_parse_numerical_param(). This is used to fetch
'expire=' and 'rports='; both are expected to use base-10.
- In nf_nat_sip.c, only accept the parsed value if its within the 1k-64k
range.
- epaddr_len now returns 0 if the port is invalid, as it already does
for invalid ip addresses. This is intentional. nf_conntrack_sip
performs lots of guesswork to find the right parts of the message
to parse. Being stricter could break existing setups.
Connection tracking helpers are designed to allow traffic to
pass, not to block it.
Based on an earlier patch from Jenny Guanni Qu <qguanni@gmail.com>.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 05e3ced297fe755093140e7487e292fb7603316e Version: 05e3ced297fe755093140e7487e292fb7603316e Version: 05e3ced297fe755093140e7487e292fb7603316e Version: 05e3ced297fe755093140e7487e292fb7603316e Version: 05e3ced297fe755093140e7487e292fb7603316e Version: 05e3ced297fe755093140e7487e292fb7603316e Version: 05e3ced297fe755093140e7487e292fb7603316e Version: 05e3ced297fe755093140e7487e292fb7603316e |
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CVE-2026-53002 (GCVE-0-2026-53002)
Vulnerability from cvelistv5
Published
2026-06-24 16:29
Modified
2026-09-10 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: remove sprintf usage
Replace it with scnprintf, the buffer sizes are expected to be large enough
to hold the result, no need for snprintf+overflow check.
Increase buffer size in mangle_content_len() while at it.
BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270
Write of size 1 at addr [..]
vsnprintf+0xea5/0x1270
sprintf+0xb1/0xe0
mangle_content_len+0x1ac/0x280
nf_nat_sdp_session+0x1cc/0x240
process_sdp+0x8f8/0xb80
process_invite_request+0x108/0x2b0
process_sip_msg+0x5da/0xf50
sip_help_tcp+0x45e/0x780
nf_confirm+0x34d/0x990
[..]
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9fafcd7b203229c3f3893a475741afc27e276306 Version: 9fafcd7b203229c3f3893a475741afc27e276306 Version: 9fafcd7b203229c3f3893a475741afc27e276306 Version: 9fafcd7b203229c3f3893a475741afc27e276306 Version: 9fafcd7b203229c3f3893a475741afc27e276306 Version: 9fafcd7b203229c3f3893a475741afc27e276306 Version: 9fafcd7b203229c3f3893a475741afc27e276306 Version: 9fafcd7b203229c3f3893a475741afc27e276306 |
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CVE-2025-68745 (GCVE-0-2025-68745)
Vulnerability from cvelistv5
Published
2025-12-24 12:09
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Clear cmds after chip reset
Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling
and host reset handling") caused two problems:
1. Commands sent to FW, after chip reset got stuck and never freed as FW
is not going to respond to them anymore.
2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a
("scsi: qla2xxx: Fix missed DMA unmap for aborted commands")
attempted to fix this, but introduced another bug under different
circumstances when two different CPUs were racing to call
qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in
dma_unmap_sg_attrs().
So revert "scsi: qla2xxx: Fix missed DMA unmap for aborted commands" and
partially revert "scsi: qla2xxx: target: Fix offline port handling and
host reset handling" at __qla2x00_abort_all_cmds.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: aefed3e5548f28e5fecafda6604fcbc65484dbaa Version: aefed3e5548f28e5fecafda6604fcbc65484dbaa Version: eb67b7a23d357f578578e737cb6412ae2384f352 Version: ec9639d92c1e10d4bc667e842753d85e21683d5c Version: e6e957f552d5b696879a31e5b0e2a9120e1ea86e Version: 4.9.316 ≤ Version: 4.14.281 ≤ Version: 4.19.245 ≤ |
||
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CVE-2026-45998 (GCVE-0-2026-45998)
Vulnerability from cvelistv5
Published
2026-05-27 12:55
Modified
2026-09-09 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix potential UAF after skb_unshare() failure
If skb_unshare() fails to unshare a packet due to allocation failure in
rxrpc_input_packet(), the skb pointer in the parent (rxrpc_io_thread())
will be NULL'd out. This will likely cause the call to
trace_rxrpc_rx_done() to oops.
Fix this by moving the unsharing down to where rxrpc_input_call_event()
calls rxrpc_input_call_packet(). There are a number of places prior to
that where we ignore DATA packets for a variety of reasons (such as the
call already being complete) for which an unshare is then avoided.
And with that, rxrpc_input_packet() doesn't need to take a pointer to the
pointer to the packet, so change that to just a pointer.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-17523 (GCVE-0-2026-17523)
Vulnerability from cvelistv5
Published
2026-07-27 08:58
Modified
2026-09-10 13:31
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: bcm: switch timer to HRTIMER_MODE_SOFT and remove hrtimer_tasklet
This patch switches the timer to HRTIMER_MODE_SOFT, which executed the
timer callback in softirq context and removes the hrtimer_tasklet.
References
Impacted products
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CVE-2026-52917 (GCVE-0-2026-52917)
Vulnerability from cvelistv5
Published
2026-06-24 07:14
Modified
2026-08-05 12:31
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: diag: reject stale associations in dump_one path
The SCTP exact sock_diag lookup can hold a transport reference, block on
lock_sock(sk), and then resume after sctp_association_free() has marked
the association dead and freed its bind address list.
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that is no longer valid for reporting. In particular,
inet_diag_msg_sctpasoc_fill() may read an empty bind-address list as a
real sctp_sockaddr_entry and trigger an out-of-bounds read from
unrelated association memory.
Reject the association after taking the socket lock if it has been
reaped or detached from the endpoint, and report the lookup as stale.
This keeps the exact dump-one path from formatting torn association
state.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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|---|---|---|---|---|
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CVE-2026-43114 (GCVE-0-2026-43114)
Vulnerability from cvelistv5
Published
2026-05-06 07:40
Modified
2026-09-09 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry
New test case fails unexpectedly when avx2 matching functions are used.
The test first loads a ranomly generated pipapo set
with 'ipv4 . port' key, i.e. nft -f foo.
This works. Then, it reloads the set after a flush:
(echo flush set t s; cat foo) | nft -f -
This is expected to work, because its the same set after all and it was
already loaded once.
But with avx2, this fails: nft reports a clashing element.
The reported clash is of following form:
We successfully re-inserted
a . b
c . d
Then we try to insert a . d
avx2 finds the already existing a . d, which (due to 'flush set') is marked
as invalid in the new generation. It skips the element and moves to next.
Due to incorrect masking, the skip-step finds the next matching
element *only considering the first field*,
i.e. we return the already reinserted "a . b", even though the
last field is different and the entry should not have been matched.
No such error is reported for the generic c implementation (no avx2) or when
the last field has to use the 'nft_pipapo_avx2_lookup_slow' fallback.
Bisection points to
7711f4bb4b36 ("netfilter: nft_set_pipapo: fix range overlap detection")
but that fix merely uncovers this bug.
Before this commit, the wrong element is returned, but erronously
reported as a full, identical duplicate.
The root-cause is too early return in the avx2 match functions.
When we process the last field, we should continue to process data
until the entire input size has been consumed to make sure no stale
bits remain in the map.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 Version: 7400b063969bdca4a06cd97f1294d765c8eecbe1 |
||
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CVE-2026-53016 (GCVE-0-2026-53016)
Vulnerability from cvelistv5
Published
2026-06-24 16:29
Modified
2026-09-09 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - copy IV using skcipher ivsize
AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver.
ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV
buffer while RFC3686 skciphers expose an 8-byte IV, so the restore
overruns the provided buffer.
Use crypto_skcipher_ivsize() to copy only the algorithm's IV length.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f Version: 2b789435d7f36ed918d92db647f3a2f3fec9bb1f |
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CVE-2026-46117 (GCVE-0-2026-46117)
Vulnerability from cvelistv5
Published
2026-05-28 09:35
Modified
2026-09-09 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()
Sashiko points out that the user can specify WQs sharing the same CQ as a
part of the uAPI and this will trigger the WARN_ON() then go on to corrupt
the kernel.
Just reject it outright and fail the QP creation.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2021-47600 (GCVE-0-2021-47600)
Vulnerability from cvelistv5
Published
2024-06-19 14:54
Modified
2026-08-05 08:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dm btree remove: fix use after free in rebalance_children()
Move dm_tm_unlock() after dm_tm_dec().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 Version: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 |
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CVE-2026-31411 (GCVE-0-2026-31411)
Vulnerability from cvelistv5
Published
2026-04-08 13:06
Modified
2026-09-08 08:46
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 |
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CVE-2026-68315 (GCVE-0-2026-68315)
Vulnerability from cvelistv5
Published
2026-08-10 12:02
Modified
2026-08-19 16:33
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: validate stream count in sctp_process_strreset_inreq()
When processing a RESET_IN_REQUEST from a peer,
sctp_process_strreset_inreq() derives the stream count from the
parameter length but does not check whether the resulting
RESET_OUT_REQUEST would exceed SCTP_MAX_CHUNK_LEN.
The OUT request header (sctp_strreset_outreq, 16 bytes) is 8 bytes
larger than the IN request header (sctp_strreset_inreq, 8 bytes).
Generally, the IP payload is bounded to 65535 bytes, so the stream
list cannot be large enough to trigger the overflow. However, on
interfaces with MTU > 65535 (e.g., loopback with IPv6 jumbograms), a
stream list that fits within the incoming IN parameter can cause a
__u16 overflow in sctp_make_strreset_req() when computing the OUT
request size, leading to an undersized skb allocation and a kernel
BUG:
net/core/skbuff.c:207 skb_panic
net/core/skbuff.c:2625 skb_put
net/sctp/sm_make_chunk.c:1535 sctp_addto_chunk
net/sctp/sm_make_chunk.c:3695 sctp_make_strreset_req
net/sctp/stream.c:655 sctp_process_strreset_inreq
The local setsockopt path validates the generated reset request size.
However, for an incoming-only reset, it accounts for the smaller IN
request even though the peer must generate an OUT request with the same
stream list. Such a request cannot be completed successfully by the
peer.
Reject peer IN requests whose corresponding OUT request would exceed
SCTP_MAX_CHUNK_LEN. Also tighten the local check so it does not send an
IN request that would require an oversized OUT request from the peer.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 Version: 7f9d68ac944e24ee5f9ac8d059ca00b1c1d34137 |
||
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CVE-2026-46155 (GCVE-0-2026-46155)
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:
smb/client: fix out-of-bounds read in smb2_compound_op()
If a server sends a truncated response but a large OutputBufferLength, and
terminates the EA list early, check_wsl_eas() returns success without
validating that the entire OutputBufferLength fits within iov_len.
Then smb2_compound_op() does:
memcpy(idata->wsl.eas, data[0], size[0]);
Where size[0] is OutputBufferLength. If iov_len is smaller than size[0],
memcpy can read beyond the end of the rsp_iov allocation and leak adjacent
kernel heap memory.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 7449d736bbbd160c76b01b8fcdf72f58a8757d4b Version: ea41367b2a602f602ea6594fc4a310520dcc64f4 Version: ea41367b2a602f602ea6594fc4a310520dcc64f4 Version: ea41367b2a602f602ea6594fc4a310520dcc64f4 Version: ea41367b2a602f602ea6594fc4a310520dcc64f4 Version: 6.6.32 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix out-of-bounds read in smb2_compound_op()\n\nIf a server sends a truncated response but a large OutputBufferLength, and\nterminates the EA list early, check_wsl_eas() returns success without\nvalidating that the entire OutputBufferLength fits within iov_len.\n\nThen smb2_compound_op() does:\n memcpy(idata-\u003ewsl.eas, data[0], size[0]);\n\nWhere size[0] is OutputBufferLength. If iov_len is smaller than size[0],\nmemcpy can read beyond the end of the rsp_iov allocation and leak adjacent\nkernel heap memory."
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CVE-2026-64113 (GCVE-0-2026-64113)
Vulnerability from cvelistv5
Published
2026-07-19 15:40
Modified
2026-08-05 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ixgbevf: fix use-after-free in VEPA multicast source pruning
ixgbevf_clean_rx_irq() prunes frames whose source MAC matches the VF's
own address (VEPA multicast workaround) by freeing the skb and
continuing to the next descriptor:
dev_kfree_skb_irq(skb);
continue;
The skb pointer is declared outside the while loop and persists across
iterations. Because the continue skips the "skb = NULL" reset at the
bottom of the loop, the next iteration enters the "else if (skb)" path
and calls ixgbevf_add_rx_frag() on the freed skb, dereferencing
skb_shinfo(skb)->nr_frags - a use-after-free in NAPI softirq context.
The sibling driver iavf already handles this correctly by nulling the
pointer before continuing. Apply the same pattern here.
I do not have ixgbevf hardware; the bug was found by static analysis
(scan_drop_continue_loops.py + semgrep drop_continue_in_loop, multi-tool
corroboration with the highest score in the scan). The UAF was confirmed
under KASAN by loading a test module that reproduces the exact code
pattern (alloc skb, kfree_skb, then read skb_shinfo(skb)->nr_frags):
BUG: KASAN: slab-use-after-free in ixgbevf_uaf_test_init+0x100/0x1000
Read of size 8 at addr 000000006163ae78 by task insmod/30
freed 208-byte region [000000006163adc0, 000000006163ae90)
QEMU emulates igb (82576) but not ixgbe (82599), and the igbvf VF
driver does not include the VEPA source pruning path, so a full
end-to-end reproduction with emulated hardware was not possible.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bad17234ba702a50aeec50ab04724ee58af89607 Version: bad17234ba702a50aeec50ab04724ee58af89607 Version: bad17234ba702a50aeec50ab04724ee58af89607 Version: bad17234ba702a50aeec50ab04724ee58af89607 Version: bad17234ba702a50aeec50ab04724ee58af89607 Version: bad17234ba702a50aeec50ab04724ee58af89607 Version: bad17234ba702a50aeec50ab04724ee58af89607 Version: bad17234ba702a50aeec50ab04724ee58af89607 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nixgbevf: fix use-after-free in VEPA multicast source pruning\n\nixgbevf_clean_rx_irq() prunes frames whose source MAC matches the VF\u0027s\nown address (VEPA multicast workaround) by freeing the skb and\ncontinuing to the next descriptor:\n\n dev_kfree_skb_irq(skb);\n continue;\n\nThe skb pointer is declared outside the while loop and persists across\niterations. Because the continue skips the \"skb = NULL\" reset at the\nbottom of the loop, the next iteration enters the \"else if (skb)\" path\nand calls ixgbevf_add_rx_frag() on the freed skb, dereferencing\nskb_shinfo(skb)-\u003enr_frags - a use-after-free in NAPI softirq context.\n\nThe sibling driver iavf already handles this correctly by nulling the\npointer before continuing. Apply the same pattern here.\n\nI do not have ixgbevf hardware; the bug was found by static analysis\n(scan_drop_continue_loops.py + semgrep drop_continue_in_loop, multi-tool\ncorroboration with the highest score in the scan). The UAF was confirmed\nunder KASAN by loading a test module that reproduces the exact code\npattern (alloc skb, kfree_skb, then read skb_shinfo(skb)-\u003enr_frags):\n\n BUG: KASAN: slab-use-after-free in ixgbevf_uaf_test_init+0x100/0x1000\n Read of size 8 at addr 000000006163ae78 by task insmod/30\n freed 208-byte region [000000006163adc0, 000000006163ae90)\n\nQEMU emulates igb (82576) but not ixgbe (82599), and the igbvf VF\ndriver does not include the VEPA source pruning path, so a full\nend-to-end reproduction with emulated hardware was not possible."
}
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"datePublished": "2026-07-19T15:40:14.251Z",
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CVE-2026-63886 (GCVE-0-2026-63886)
Vulnerability from cvelistv5
Published
2026-07-19 14:54
Modified
2026-08-05 12:36
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: iscsi: Validate CHAP_R length before base64 decode
chap_server_compute_hash() allocates client_digest as
kzalloc(chap->digest_size) and then, for BASE64-encoded responses,
passes chap_r directly to chap_base64_decode() without checking whether
the input length could produce more than digest_size bytes of output.
chap_base64_decode() writes to the destination unconditionally as long
as there is input to consume. With MAX_RESPONSE_LENGTH set to 128 and
the "0b" prefix stripped by extract_param(), up to 127 base64 characters
can reach the decoder. 127 characters decode to 95 bytes. For SHA-256
(digest_size=32) this overflows client_digest by 63 bytes; for MD5
(digest_size=16) the overflow is 79 bytes.
The length check at line 344 fires after the write has already happened.
The HEX branch in the same switch statement already validates the length
up front. Apply the same approach to the BASE64 branch: strip trailing
base64 padding characters, then reject any input whose data length
exceeds DIV_ROUND_UP(digest_size * 4, 3) before calling the decoder.
Stripping trailing '=' before the comparison handles both padded and
unpadded encodings. chap_base64_decode() already returns early on '=',
so the full original string is still passed to the decoder unchanged.
The mutual CHAP path decodes CHAP_C into initiatorchg_binhex, which is
kzalloc(CHAP_CHALLENGE_STR_LEN). extract_param() caps initiatorchg at
CHAP_CHALLENGE_STR_LEN characters, so at most CHAP_CHALLENGE_STR_LEN-1
base64 characters reach the decoder. The maximum decoded size,
DIV_ROUND_UP((CHAP_CHALLENGE_STR_LEN-1) * 3, 4), is less than
CHAP_CHALLENGE_STR_LEN, so no overflow is possible there. A comment is
added at the call site to document this.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1e5733883421495908f3b90d9d807663038b4136 Version: 1e5733883421495908f3b90d9d807663038b4136 Version: 1e5733883421495908f3b90d9d807663038b4136 Version: 1e5733883421495908f3b90d9d807663038b4136 Version: 1e5733883421495908f3b90d9d807663038b4136 Version: 1e5733883421495908f3b90d9d807663038b4136 |
||
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CVE-2026-53196 (GCVE-0-2026-53196)
Vulnerability from cvelistv5
Published
2026-06-25 08:39
Modified
2026-09-09 12:05
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
USB: serial: io_ti: fix heap overflow in get_manuf_info()
get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the
device I2C EEPROM into a buffer allocated with kmalloc_obj(), which
is sizeof(struct edge_ti_manuf_descriptor) = 10 bytes.
The Size field comes from the device and is only validated (in
check_i2c_image()) to make sure the descriptor fits within
TI_MAX_I2C_SIZE (16384 bytes), not against the destination buffer size.
A malicious USB device can therefore set Size to any value up to 16377,
causing a heap overflow of up to 16367 bytes when plugged into a host
running this driver.
valid_csum() is called after read_rom() and also iterates
buffer[0..Size-1], compounding the out-of-bounds access.
Fix by rejecting descriptors with unexpected length before calling
read_rom().
[ johan: amend commit message; also check for short descriptors ]
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-2026-64015 (GCVE-0-2026-64015)
Vulnerability from cvelistv5
Published
2026-07-19 15:39
Modified
2026-08-05 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
security/keys: fix missed RCU read section on lookup
Nicholas Carlini reports that the keyring code calls assoc_array_find()
in find_key_to_update() without holding the RCU read lock, while the
assoc_array_gc() code really is designed around removing the node from
the tree and then freeing it after an RCU grace-period.
The regular key handling doesn't see this because holding the keyring
semaphore hides any lifetime issues, but the persistent key handling
uses a different model.
Instead of extending the keyring locking, just do the simple RCU locking
that the assoc_array was designed for.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 Version: b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 Version: b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 Version: b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 Version: b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 Version: b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 |
||
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CVE-2026-68117 (GCVE-0-2026-68117)
Vulnerability from cvelistv5
Published
2026-08-10 11:58
Modified
2026-08-19 16:29
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tipc: clear sock->sk on the failed-insert path in tipc_sk_create()
When tipc_sk_create() fails to insert the new socket (tipc_sk_insert()
returns non-zero), its error path frees the sk with sk_free() but leaves
sock->sk pointing at the freed object:
if (tipc_sk_insert(tsk)) {
sk_free(sk);
pr_warn("Socket create failed; port number exhausted\n");
return -EINVAL;
}
This is harmless for plain socket(): the syscall layer clears sock->ops
before releasing, so tipc_release() is never called. It is not harmless
on the accept() path. tipc_accept() creates the pre-allocated child
socket with tipc_sk_create(net, new_sock, 0, kern); on failure it leaves
new_sock->sk dangling and new_sock->ops non-NULL, and do_accept() then
fput()s the new file, so __sock_release() -> tipc_release() runs
lock_sock(new_sock->sk) on the freed sk -- a use-after-free write of the
sk_lock spinlock.
tipc_release() already guards this exact "failed accept() releases a
pre-allocated child" case with "if (sk == NULL) return 0;", but the
guard is bypassed because tipc_sk_create() left sock->sk non-NULL
(dangling) rather than NULL.
Clear sock->sk on the failed-insert path so the existing tipc_release()
NULL check fires and the use-after-free is avoided.
The tipc_sk_insert() failure is reached when the per-netns socket
rhashtable hits its max_size (tsk_rht_params.max_size = 1048576, ~2M
elements) -- i.e. once a netns holds ~2M TIPC sockets every insert
returns -E2BIG.
BUG: KASAN: slab-use-after-free in lock_sock_nested (net/core/sock.c:3839)
Write of size 8 at addr ffff8880047cdc38 by task init/1
lock_sock_nested (net/core/sock.c:3839)
tipc_release (net/tipc/socket.c:638)
__sock_release (net/socket.c:710)
sock_close (net/socket.c:1501)
__fput (fs/file_table.c:512)
Allocated by task 1:
sk_alloc (net/core/sock.c:2308)
tipc_sk_create (net/tipc/socket.c:487)
tipc_accept (net/tipc/socket.c:2744)
do_accept (net/socket.c:2034)
Freed by task 1:
__sk_destruct (net/core/sock.c:2391)
tipc_sk_create (net/tipc/socket.c:504)
tipc_accept (net/tipc/socket.c:2744)
do_accept (net/socket.c:2034)
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: efa78f2ae363428525fb4981bb63c555ee79f3c7 Version: 833ecd0eae76eadf81d6d747bb5bc992d1151867 Version: 00aff3590fc0a73bddd3b743863c14e76fd35c0c Version: 00aff3590fc0a73bddd3b743863c14e76fd35c0c Version: 00aff3590fc0a73bddd3b743863c14e76fd35c0c Version: 00aff3590fc0a73bddd3b743863c14e76fd35c0c Version: 00aff3590fc0a73bddd3b743863c14e76fd35c0c Version: 00aff3590fc0a73bddd3b743863c14e76fd35c0c Version: 638fa20b618b2bbcf86da71231624cc82121a036 Version: 7bc9e7f70bc57d8f02ffea2a42094281effb15ef Version: ef488669b2652bde5b6ee5a409a5b048a2a50db4 Version: 4919d82f7041157a421ca9bf39a78551d5ad8a1b Version: 3b2957fc09fe1ac7f07f40dd50dd5f93e3f3a7a2 Version: 5.10.132 ≤ Version: 5.15.56 ≤ Version: 4.9.324 ≤ Version: 4.14.289 ≤ Version: 4.19.253 ≤ Version: 5.4.207 ≤ Version: 5.18.13 ≤ |
||
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: clear sock-\u003esk on the failed-insert path in tipc_sk_create()\n\nWhen tipc_sk_create() fails to insert the new socket (tipc_sk_insert()\nreturns non-zero), its error path frees the sk with sk_free() but leaves\nsock-\u003esk pointing at the freed object:\n\n\tif (tipc_sk_insert(tsk)) {\n\t\tsk_free(sk);\n\t\tpr_warn(\"Socket create failed; port number exhausted\\n\");\n\t\treturn -EINVAL;\n\t}\n\nThis is harmless for plain socket(): the syscall layer clears sock-\u003eops\nbefore releasing, so tipc_release() is never called. It is not harmless\non the accept() path. tipc_accept() creates the pre-allocated child\nsocket with tipc_sk_create(net, new_sock, 0, kern); on failure it leaves\nnew_sock-\u003esk dangling and new_sock-\u003eops non-NULL, and do_accept() then\nfput()s the new file, so __sock_release() -\u003e tipc_release() runs\nlock_sock(new_sock-\u003esk) on the freed sk -- a use-after-free write of the\nsk_lock spinlock.\n\ntipc_release() already guards this exact \"failed accept() releases a\npre-allocated child\" case with \"if (sk == NULL) return 0;\", but the\nguard is bypassed because tipc_sk_create() left sock-\u003esk non-NULL\n(dangling) rather than NULL.\n\nClear sock-\u003esk on the failed-insert path so the existing tipc_release()\nNULL check fires and the use-after-free is avoided.\n\nThe tipc_sk_insert() failure is reached when the per-netns socket\nrhashtable hits its max_size (tsk_rht_params.max_size = 1048576, ~2M\nelements) -- i.e. once a netns holds ~2M TIPC sockets every insert\nreturns -E2BIG.\n\n BUG: KASAN: slab-use-after-free in lock_sock_nested (net/core/sock.c:3839)\n Write of size 8 at addr ffff8880047cdc38 by task init/1\n lock_sock_nested (net/core/sock.c:3839)\n tipc_release (net/tipc/socket.c:638)\n __sock_release (net/socket.c:710)\n sock_close (net/socket.c:1501)\n __fput (fs/file_table.c:512)\n Allocated by task 1:\n sk_alloc (net/core/sock.c:2308)\n tipc_sk_create (net/tipc/socket.c:487)\n tipc_accept (net/tipc/socket.c:2744)\n do_accept (net/socket.c:2034)\n Freed by task 1:\n __sk_destruct (net/core/sock.c:2391)\n tipc_sk_create (net/tipc/socket.c:504)\n tipc_accept (net/tipc/socket.c:2744)\n do_accept (net/socket.c:2034)"
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"value": "AV:N - The bug is hit in tipc_accept() when a listening SOCK_STREAM/SOCK_SEQPACKET socket accepts an incoming TIPC connection; peers reach this path over default UDP/Ethernet bearers (e.g. UDP/6118) without local syscall access.\nAC:L - An attacker can deterministically fill the per-netns TIPC socket rhashtable (~2M entries) by opening many sockets or connections, then trigger the failed-insert accept() cleanup path that performs lock_sock() on the freed sk.\nPR:N - No elevated Linux capabilities are required to create AF_TIPC stream/seqpacket sockets or send unauthenticated TIPC SYN traffic to a listening cluster service; only LSM policy may restrict access.\nUI:N - Exploitation needs no end-user action beyond a server\u2019s normal accept() loop processing inbound TIPC connection requests queued by the network stack.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security domain; impact is kernel privilege escalation or crash, not a VM/hypervisor or IOMMU boundary crossing.\nC:H - tipc_release() calls lock_sock() on a freed struct sock, a slab use-after-free that can be groomed for arbitrary kernel memory disclosure via controlled reuse of the freed socket object.\nI:H - The UAF performs an 8-byte write to sk_lock on freed memory during socket teardown, enabling heap corruption and potential arbitrary kernel write or code execution primitives.\nA:H - KASAN reports slab-use-after-free in lock_sock_nested during tipc_release on the failed accept() path, causing kernel oops/panic and denial of service even without full exploitation."
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CVE-2026-64191 (GCVE-0-2026-64191)
Vulnerability from cvelistv5
Published
2026-07-20 16:27
Modified
2026-08-05 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
i2c: stub: Reject I2C block transfers with invalid length
The I2C_SMBUS_I2C_BLOCK_DATA case in stub_xfer() uses data->block[0]
as the transfer length. The existing check only clamps it to avoid
overrunning the chip->words[256] register array, but does not validate
it against I2C_SMBUS_BLOCK_MAX (32), which is the limit of the union
i2c_smbus_data.block buffer (34 bytes total). The driver is a
development/test tool (CONFIG_I2C_STUB=m, not built by default)
that must be loaded with a chip_addr= parameter.
A local user with access to /dev/i2c-* can issue an I2C_SMBUS ioctl
with I2C_SMBUS_I2C_BLOCK_DATA and data->block[0] > 32, causing
stub_xfer() to read or write past the end of the union
i2c_smbus_data.block buffer:
BUG: KASAN: stack-out-of-bounds in stub_xfer (drivers/i2c/i2c-stub.c:223)
Read of size 1 at addr ffff88800abcfd92 by task exploit/81
Call Trace:
<TASK>
stub_xfer (drivers/i2c/i2c-stub.c:223)
__i2c_smbus_xfer (drivers/i2c/i2c-core-smbus.c:593)
i2c_smbus_xfer (drivers/i2c/i2c-core-smbus.c:536)
i2cdev_ioctl_smbus (drivers/i2c/i2c-dev.c:391)
i2cdev_ioctl (drivers/i2c/i2c-dev.c:478)
__x64_sys_ioctl (fs/ioctl.c:583)
do_syscall_64 (arch/x86/entry/syscall_64.c:94)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
</TASK>
The bug exists because i2c-stub implements .smbus_xfer directly,
bypassing the I2C_SMBUS_BLOCK_MAX validation in
i2c_smbus_xfer_emulated(). The I2C_SMBUS_BLOCK_DATA case in the same
function correctly validates against I2C_SMBUS_BLOCK_MAX, but the
I2C_SMBUS_I2C_BLOCK_DATA case does not.
Fix by rejecting transfers with data->block[0] == 0 or
data->block[0] > I2C_SMBUS_BLOCK_MAX with -EINVAL, consistent with
both the I2C_SMBUS_BLOCK_DATA case in the same function and the
I2C_SMBUS_I2C_BLOCK_DATA validation in i2c_smbus_xfer_emulated().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4710317891e4824ce1510a6b5066abbd3e917750 Version: 4710317891e4824ce1510a6b5066abbd3e917750 Version: 4710317891e4824ce1510a6b5066abbd3e917750 Version: 4710317891e4824ce1510a6b5066abbd3e917750 Version: 4710317891e4824ce1510a6b5066abbd3e917750 Version: 4710317891e4824ce1510a6b5066abbd3e917750 Version: 4710317891e4824ce1510a6b5066abbd3e917750 Version: 4710317891e4824ce1510a6b5066abbd3e917750 |
||
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CVE-2026-64304 (GCVE-0-2026-64304)
Vulnerability from cvelistv5
Published
2026-07-25 08:49
Modified
2026-08-17 04:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: qat - validate RSA CRT component lengths
The generic RSA key parser (rsa_helper.c) bounds each CRT component (p,
q, dp, dq, qinv) by the modulus size n_sz, but qat_rsa_setkey_crt()
allocates half-size DMA buffers (key_sz / 2) and right-aligns each
component with:
memcpy(dst + half_key_sz - len, src, len)
When a CRT component is larger than half_key_sz the subtraction
underflows and memcpy writes past the DMA buffer, causing memory
corruption.
Add a len > half_key_sz check next to the existing !len check for each
of the five CRT components so the driver falls back to the non-CRT path
instead of writing out of bounds.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 Version: 879f77e9071f029e1c9bd5a75814ecf51370f846 |
||
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CVE-2026-68300 (GCVE-0-2026-68300)
Vulnerability from cvelistv5
Published
2026-08-10 12:02
Modified
2026-08-19 16:32
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: auth: verify auth requirement when auth_chunk is NULL
sctp_auth_chunk_verify() returns true unconditionally when
chunk->auth_chunk is NULL, silently skipping authentication.
This is incorrect when:
1. skb_clone() failed in the BH receive path, leaving auth_chunk
NULL. In sctp_endpoint_bh_rcv() asoc is NULL for new
connections, so the early sctp_auth_recv_cid() check cannot
catch this.
2. No AUTH chunk precedes COOKIE-ECHO, so skb_clone() is never
called and auth_chunk remains NULL.
Fix by checking sctp_auth_recv_cid() when auth_chunk is NULL:
if authentication is required, return false to drop the chunk;
otherwise continue normally.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bbd0d59809f923ea2b540cbd781b32110e249f6e Version: bbd0d59809f923ea2b540cbd781b32110e249f6e Version: bbd0d59809f923ea2b540cbd781b32110e249f6e Version: bbd0d59809f923ea2b540cbd781b32110e249f6e Version: bbd0d59809f923ea2b540cbd781b32110e249f6e Version: bbd0d59809f923ea2b540cbd781b32110e249f6e Version: bbd0d59809f923ea2b540cbd781b32110e249f6e Version: bbd0d59809f923ea2b540cbd781b32110e249f6e |
||
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CVE-2026-63971 (GCVE-0-2026-63971)
Vulnerability from cvelistv5
Published
2026-07-19 14:55
Modified
2026-08-05 12:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: fix race between sctp_wait_for_connect and peeloff
sctp_wait_for_connect() drops and re-acquires the socket lock while
waiting for the association to reach ESTABLISHED state. During this
window, another thread can peeloff the association to a new socket via
getsockopt(SCTP_SOCKOPT_PEELOFF), changing asoc->base.sk. After
re-acquiring the old socket lock, sctp_wait_for_connect() returns
success without noticing the migration — the caller then accesses
the association under the wrong lock in sctp_datamsg_from_user().
Add the same sk != asoc->base.sk check that sctp_wait_for_sndbuf()
already has, returning an error if the association was migrated while
we slept.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 Version: 668c9beb9020d5834ee9e43c208190a07d2b1928 |
||
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CVE-2026-46149 (GCVE-0-2026-46149)
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:
scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show()
target_tg_pt_gp_members_show() formats LUN paths with snprintf() into a
256-byte stack buffer, then will memcpy() cur_len bytes from that
buffer. snprintf() returns the length the output would have had, which
can exceed the buffer size when the fabric WWN is long because iSCSI IQN
names can be up to 223 bytes. The check at the memcpy() site only
guards the destination page write, not the source read, so memcpy() will
read past the stack buffer and copy adjacent stack contents to the sysfs
reader, which when CONFIG_FORTIFY_SOURCE is enabled, fortify_panic()
will be triggered.
Commit 27e06650a5ea ("scsi: target: target_core_configfs: Add length
check to avoid buffer overflow") added the same bound to the
target_lu_gp_members_show() but the tg_pt_gp variant was missed so
resolve that here.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 Version: c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 |
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CVE-2026-64268 (GCVE-0-2026-64268)
Vulnerability from cvelistv5
Published
2026-07-25 08:49
Modified
2026-08-17 04:52
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: bound Read Response placement to the RREAD length
In drivers/infiniband/sw/siw/siw_qp_rx.c, siw_proc_rresp() places each
inbound Read Response DDP segment at sge->laddr + wqe->processed and then
accumulates wqe->processed, but it never checks the running total against
the sink buffer length on continuation segments. siw_check_sge() resolves
and validates the sink memory only on the first fragment (the if (!*mem)
branch), and siw_rresp_check_ntoh() compares the cumulative length against
wqe->bytes only on the final segment (the !frx->more_ddp_segs guard).
A connected siw peer that answers an outstanding RREAD with Read Response
segments that keep the DDP Last flag clear, carrying more total payload
than the RREAD requested, drives wqe->processed past the validated sink
buffer; the next siw_rx_data() call writes out of bounds at
sge->laddr + wqe->processed. siw runs iWARP over ordinary routable TCP,
so the peer is the remote end of an established RDMA connection and needs
no local privilege.
Bound every segment before placement, exactly as siw_proc_send() and
siw_proc_write() already do for their tagged and untagged paths, and
terminate the connection with a base-or-bounds DDP error when the
Read Response would overrun the sink buffer.
This is the second receive-path length fix for this file. A separate
change rejects an MPA FPDU length that underflows the per-fragment
remainder in the header decode; that guard does not cover this case,
because here each individual segment length is self-consistent and only
the accumulated placement offset overruns the buffer.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 Version: 8b6a361b8c482f22ac99c3273285ff16b23fba91 |
||
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CVE-2026-53006 (GCVE-0-2026-53006)
Vulnerability from cvelistv5
Published
2026-06-24 16:29
Modified
2026-09-09 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix possible UAF in icmpv6_rcv()
Caching saddr and daddr before pskb_pull() is problematic
since skb->head can change.
Remove these temporary variables:
- We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr
when net_dbg_ratelimited() is called in the slow path.
- Avoid potential future misuse after pskb_pull() call.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de Version: 4b3418fba0fe819197e3359d5ddbef84ba2c59de |
||
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CVE-2026-53009 (GCVE-0-2026-53009)
Vulnerability from cvelistv5
Published
2026-06-24 16:29
Modified
2026-09-09 12:05
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ice: fix double-free of tx_buf skb
If ice_tso() or ice_tx_csum() fail, the error path in
ice_xmit_frame_ring() frees the skb, but the 'first' tx_buf still points
to it and is marked as valid (ICE_TX_BUF_SKB).
'next_to_use' remains unchanged, so the potential problem will
likely fix itself when the next packet is transmitted and the tx_buf
gets overwritten. But if there is no next packet and the interface is
brought down instead, ice_clean_tx_ring() -> ice_unmap_and_free_tx_buf()
will find the tx_buf and free the skb for the second time.
The fix is to reset the tx_buf type to ICE_TX_BUF_EMPTY in the error
path, so that ice_unmap_and_free_tx_buf().
Move the initialization of 'first' up, to ensure it's already valid in
case we hit the linearization error path.
The bug was spotted by AI while I had it looking for something else.
It also proposed an initial version of the patch.
I reproduced the bug and tested the fix by adding code to inject
failures, on a build with KASAN.
I looked for similar bugs in related Intel drivers and did not find any.
References
Impacted products
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CVE-2023-52924 (GCVE-0-2023-52924)
Vulnerability from cvelistv5
Published
2025-02-05 09:07
Modified
2026-05-11 19:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: don't skip expired elements during walk
There is an asymmetry between commit/abort and preparation phase if the
following conditions are met:
1. set is a verdict map ("1.2.3.4 : jump foo")
2. timeouts are enabled
In this case, following sequence is problematic:
1. element E in set S refers to chain C
2. userspace requests removal of set S
3. kernel does a set walk to decrement chain->use count for all elements
from preparation phase
4. kernel does another set walk to remove elements from the commit phase
(or another walk to do a chain->use increment for all elements from
abort phase)
If E has already expired in 1), it will be ignored during list walk, so its use count
won't have been changed.
Then, when set is culled, ->destroy callback will zap the element via
nf_tables_set_elem_destroy(), but this function is only safe for
elements that have been deactivated earlier from the preparation phase:
lack of earlier deactivate removes the element but leaks the chain use
count, which results in a WARN splat when the chain gets removed later,
plus a leak of the nft_chain structure.
Update pipapo_get() not to skip expired elements, otherwise flush
command reports bogus ENOENT errors.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 9d0982927e79049675cb6c6c04a0ebb3dad5a434 Version: 9d0982927e79049675cb6c6c04a0ebb3dad5a434 Version: 9d0982927e79049675cb6c6c04a0ebb3dad5a434 Version: 9d0982927e79049675cb6c6c04a0ebb3dad5a434 Version: 9d0982927e79049675cb6c6c04a0ebb3dad5a434 Version: 9d0982927e79049675cb6c6c04a0ebb3dad5a434 Version: 9d0982927e79049675cb6c6c04a0ebb3dad5a434 |
||
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CVE-2026-64563 (GCVE-0-2026-64563)
Vulnerability from cvelistv5
Published
2026-08-04 06:23
Modified
2026-08-19 16:28
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rhashtable: clear stale iter->p on table restart
rhashtable_walk_start_check() has two restart paths when resuming a walk.
When iter->walker.tbl is valid, it re-validates iter->p against the table
and sets iter->p = NULL if the object is gone. When iter->walker.tbl is
NULL (table was freed during resize), it resets slot and skip but forgets
to clear iter->p.
rhashtable_walk_next() then dereferences the stale iter->p, reading
freed memory. This is a use-after-free.
Any caller that does multi-fragment rhashtable walks across
walk_stop/walk_start boundaries is affected. Concrete cases include
netlink_diag (__netlink_diag_dump in net/netlink/diag.c) and TIPC
(tipc_nl_sk_walk in net/tipc/socket.c).
Crash stack (netlink_diag):
BUG: KASAN: slab-use-after-free in rhashtable_walk_next+0x365/0x3c0
Read of size 8 at addr ffff88801a9d2438 (freed kmalloc-2k, offset 1080)
Call Trace:
rhashtable_walk_next+0x365/0x3c0 (lib/rhashtable.c:1016)
__netlink_diag_dump+0x160/0x760 (net/netlink/diag.c:122)
netlink_diag_dump+0xc2/0x240
netlink_dump+0x5bc/0x1270
netlink_recvmsg+0x7a3/0x980
sock_recvmsg+0x1bc/0x200
__sys_recvfrom+0x1d4/0x2c0
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 Version: 5d240a8936f6a1d3ece06701e8c4d830a2eca8a8 |
||
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CVE-2026-46145 (GCVE-0-2026-46145)
Vulnerability from cvelistv5
Published
2026-05-28 09:36
Modified
2026-09-09 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/mana: Validate rx_hash_key_len
Sashiko points out that rx_hash_key_len comes from a uAPI structure and is
blindly passed to memcpy, allowing the userspace to trash kernel
memory. Bounds check it so the memcpy cannot overflow.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-40149 (GCVE-0-2025-40149)
Vulnerability from cvelistv5
Published
2025-11-12 10:23
Modified
2026-09-08 08:42
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-2026-64007 (GCVE-0-2026-64007)
Vulnerability from cvelistv5
Published
2026-07-19 14:56
Modified
2026-08-05 12:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: synproxy: refresh tcphdr after skb_ensure_writable
synproxy_tstamp_adjust() rewrites the TCP timestamp option in place
and then patches the TCP checksum via inet_proto_csum_replace4() on
the caller-supplied tcphdr pointer. Both ipv4_synproxy_hook() and
ipv6_synproxy_hook() obtain that pointer with skb_header_pointer()
before calling in, so it may either alias skb->head directly or
point at the caller's on-stack _tcph buffer.
Between obtaining the pointer and using it, the function calls
skb_ensure_writable(skb, optend), which on a cloned or non-linear
skb invokes pskb_expand_head() and frees the old skb->head. After
that point the cached th is stale:
caller (ipv[46]_synproxy_hook)
th = skb_header_pointer(skb, ..., &_tcph)
synproxy_tstamp_adjust(skb, protoff, th, ...)
skb_ensure_writable(skb, optend)
pskb_expand_head() /* kfree(old skb->head) */
...
inet_proto_csum_replace4(&th->check, ...)
/* writes into freed head, or
into the caller's stack copy
leaving the on-wire checksum
stale */
The option bytes are written through skb->data and are fine; only
the checksum update goes through th and so lands in the wrong
place. The result is either a write into freed slab memory or a
packet leaving with a checksum that does not match its payload.
Fix by re-deriving th from skb->data + protoff immediately after
skb_ensure_writable() succeeds, so the subsequent checksum update
targets the linear, writable header.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 48b1de4c110a7afa4b85862f6c75af817db26fad Version: 48b1de4c110a7afa4b85862f6c75af817db26fad Version: 48b1de4c110a7afa4b85862f6c75af817db26fad Version: 48b1de4c110a7afa4b85862f6c75af817db26fad Version: 48b1de4c110a7afa4b85862f6c75af817db26fad Version: 48b1de4c110a7afa4b85862f6c75af817db26fad Version: 48b1de4c110a7afa4b85862f6c75af817db26fad Version: 48b1de4c110a7afa4b85862f6c75af817db26fad |
||
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CVE-2026-68343 (GCVE-0-2026-68343)
Vulnerability from cvelistv5
Published
2026-08-10 12:03
Modified
2026-08-19 16:33
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: client: validate DFS referral PathConsumed
parse_dfs_referrals() validates that the response contains the fixed
referral entry array and, on for-next, the per-referral string offsets.
However, the response also contains a PathConsumed value that is later
used for DFS path parsing.
If a malformed response provides a PathConsumed value larger than the
search name, later DFS parsing can advance beyond the end of the path.
Validate PathConsumed against the search name length before storing it in
the parsed referral.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4ecce920e13ace16a5ba45efe8909946c28fb2ad Version: 4ecce920e13ace16a5ba45efe8909946c28fb2ad Version: 4ecce920e13ace16a5ba45efe8909946c28fb2ad Version: 4ecce920e13ace16a5ba45efe8909946c28fb2ad Version: 4ecce920e13ace16a5ba45efe8909946c28fb2ad Version: 4ecce920e13ace16a5ba45efe8909946c28fb2ad |
||
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CVE-2026-52942 (GCVE-0-2026-52942)
Vulnerability from cvelistv5
Published
2026-06-24 07:14
Modified
2026-09-08 08:49
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_log: validate MAC header was set before dumping it
The fallback path of dump_mac_header() guards the MAC header access
only with "skb->mac_header != skb->network_header", without checking
skb_mac_header_was_set(). When the MAC header is unset, mac_header is
0xffff, so the test passes and skb_mac_header(skb) returns
skb->head + 0xffff, ~64 KiB past the buffer; the loop then reads
dev->hard_header_len bytes out of bounds into the kernel log.
This is reachable via the netdev logger: nf_log_unknown_packet() calls
dump_mac_header() unconditionally, and an skb sent through AF_PACKET
with PACKET_QDISC_BYPASS reaches the egress hook with mac_header still
unset (__dev_queue_xmit(), which would reset it, is bypassed).
Add the skb_mac_header_was_set() check the ARPHRD_ETHER path already
uses, and replace the open-coded MAC header length test with
skb_mac_header_len(). Only skbs with an unset MAC header are affected;
valid ones are dumped as before.
BUG: KASAN: slab-out-of-bounds in dump_mac_header (net/netfilter/nf_log_syslog.c:831)
Read of size 1 at addr ffff88800ea49d3f by task exploit/148
Call Trace:
kasan_report (mm/kasan/report.c:595)
dump_mac_header (net/netfilter/nf_log_syslog.c:831)
nf_log_netdev_packet (net/netfilter/nf_log_syslog.c:938 net/netfilter/nf_log_syslog.c:963)
nf_log_packet (net/netfilter/nf_log.c:260)
nft_log_eval (net/netfilter/nft_log.c:60)
nft_do_chain (net/netfilter/nf_tables_core.c:285)
nft_do_chain_netdev (net/netfilter/nft_chain_filter.c:307)
nf_hook_slow (net/netfilter/core.c:619)
nf_hook_direct_egress (net/packet/af_packet.c:257)
packet_xmit (net/packet/af_packet.c:280)
packet_sendmsg (net/packet/af_packet.c:3114)
__sys_sendto (net/socket.c:2265)
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 Version: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7 |
||
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CVE-2026-53091 (GCVE-0-2026-53091)
Vulnerability from cvelistv5
Published
2026-06-24 16:30
Modified
2026-09-10 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: pull headers in qdisc_pkt_len_segs_init()
Most ndo_start_xmit() methods expects headers of gso packets
to be already in skb->head.
net/core/tso.c users are particularly at risk, because tso_build_hdr()
does a memcpy(hdr, skb->data, hdr_len);
qdisc_pkt_len_segs_init() already does a dissection of gso packets.
Use pskb_may_pull() instead of skb_header_pointer() to make
sure drivers do not have to reimplement this.
Some malicious packets could be fed, detect them so that we can
drop them sooner with a new SKB_DROP_REASON_SKB_BAD_GSO drop_reason.
References
Impacted products
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CVE-2026-53071 (GCVE-0-2026-53071)
Vulnerability from cvelistv5
Published
2026-06-24 16:30
Modified
2026-09-09 12:05
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp
l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding
l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file
acquires the lock first. A remote BLE device can send a crafted
L2CAP ECRED reconfiguration response to corrupt the channel list
while another thread is iterating it.
Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(),
and l2cap_chan_unlock() and l2cap_chan_put() after, matching the
pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 15f02b91056253e8cdc592888f431da0731337b8 Version: 15f02b91056253e8cdc592888f431da0731337b8 Version: 15f02b91056253e8cdc592888f431da0731337b8 Version: 15f02b91056253e8cdc592888f431da0731337b8 Version: 15f02b91056253e8cdc592888f431da0731337b8 Version: 15f02b91056253e8cdc592888f431da0731337b8 Version: 15f02b91056253e8cdc592888f431da0731337b8 Version: 15f02b91056253e8cdc592888f431da0731337b8 |
||
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CVE-2026-53246 (GCVE-0-2026-53246)
Vulnerability from cvelistv5
Published
2026-06-25 08:39
Modified
2026-08-05 12:34
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing
When a listening SCTP server processes a COOKIE_ECHO chunk, the cached
peer INIT chunk embedded after the cookie is parsed and its parameters
are later walked by sctp_process_init() using sctp_walk_params().
However, the chunk header length of this cached INIT chunk was not
validated against the remaining buffer in the COOKIE_ECHO payload. If
the length field is inflated, the parameter walk can run beyond the
actual received data, leading to out-of-bounds reads and potential
memory corruption during later parameter handling (e.g. STATE_COOKIE
processing and kmemdup() copies).
Add a bounds check in sctp_unpack_cookie() to ensure the cached INIT
chunk length does not exceed the available data in the COOKIE_ECHO
buffer before it is used.
References
Impacted products
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CVE-2026-46099 (GCVE-0-2026-46099)
Vulnerability from cvelistv5
Published
2026-05-27 12:59
Modified
2026-09-09 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
seg6_input_core() and rpl_input() call ip6_route_input() which sets a
NOREF dst on the skb, then pass it to dst_cache_set_ip6() invoking
dst_hold() unconditionally.
On PREEMPT_RT, ksoftirqd is preemptible and a higher-priority task can
release the underlying pcpu_rt between the lookup and the caching
through a concurrent FIB lookup on a shared nexthop.
Simplified race sequence:
ksoftirqd/X higher-prio task (same CPU X)
----------- --------------------------------
seg6_input_core(,skb)/rpl_input(skb)
dst_cache_get()
-> miss
ip6_route_input(skb)
-> ip6_pol_route(,skb,flags)
[RT6_LOOKUP_F_DST_NOREF in flags]
-> FIB lookup resolves fib6_nh
[nhid=N route]
-> rt6_make_pcpu_route()
[creates pcpu_rt, refcount=1]
pcpu_rt->sernum = fib6_sernum
[fib6_sernum=W]
-> cmpxchg(fib6_nh.rt6i_pcpu,
NULL, pcpu_rt)
[slot was empty, store succeeds]
-> skb_dst_set_noref(skb, dst)
[dst is pcpu_rt, refcount still 1]
rt_genid_bump_ipv6()
-> bumps fib6_sernum
[fib6_sernum from W to Z]
ip6_route_output()
-> ip6_pol_route()
-> FIB lookup resolves fib6_nh
[nhid=N]
-> rt6_get_pcpu_route()
pcpu_rt->sernum != fib6_sernum
[W <> Z, stale]
-> prev = xchg(rt6i_pcpu, NULL)
-> dst_release(prev)
[prev is pcpu_rt,
refcount 1->0, dead]
dst = skb_dst(skb)
[dst is the dead pcpu_rt]
dst_cache_set_ip6(dst)
-> dst_hold() on dead dst
-> WARN / use-after-free
For the race to occur, ksoftirqd must be preemptible (PREEMPT_RT without
PREEMPT_RT_NEEDS_BH_LOCK) and a concurrent task must be able to release
the pcpu_rt. Shared nexthop objects provide such a path, as two routes
pointing to the same nhid share the same fib6_nh and its rt6i_pcpu
entry.
Fix seg6_input_core() and rpl_input() by calling skb_dst_force() after
ip6_route_input() to force the NOREF dst into a refcounted one before
caching.
The output path is not affected as ip6_route_output() already returns a
refcounted dst.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: af4a2209b1344939eaac11f269c261d347cbc3ee Version: af4a2209b1344939eaac11f269c261d347cbc3ee Version: af4a2209b1344939eaac11f269c261d347cbc3ee Version: af4a2209b1344939eaac11f269c261d347cbc3ee Version: af4a2209b1344939eaac11f269c261d347cbc3ee Version: af4a2209b1344939eaac11f269c261d347cbc3ee Version: af4a2209b1344939eaac11f269c261d347cbc3ee |
||
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CVE-2026-72129 (GCVE-0-2026-72129)
Vulnerability from cvelistv5
Published
2026-08-15 05:53
Modified
2026-08-17 05:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvmet-rdma: handle inline data with a nonzero offset
nvmet_rdma_use_inline_sg() maps the host-controlled inline data offset
into the per-command inline scatterlist. The bounds check admits any
offset with off + len <= inline_data_size, but the mapping still assumes
the data begins in the first inline page:
sg->offset = off;
sg->length = min_t(int, len, PAGE_SIZE - off);
When a port is configured with inline_data_size > PAGE_SIZE (settable up
to max(SZ_16K, PAGE_SIZE)), an offset in (PAGE_SIZE, inline_data_size]
makes "PAGE_SIZE - off" underflow, so sg->length is set to ~4 GiB and
the block backend reads far past the first inline page. num_pages(len)
also ignores the offset, so an in-bounds offset whose [off, off+len)
span crosses a page boundary under-counts the scatterlist.
Map the offset properly: split it into a page index and an in-page
offset, start the scatterlist at that page, and size the page count from
page_off + len. Because the request scatterlist may now start at
inline_sg[page_idx] rather than inline_sg[0], generalize the inline-SGL
identity test in nvmet_rdma_release_rsp() to a range test; otherwise the
persistent inline scatterlist is mistaken for an allocated one and
nvmet_req_free_sgls() frees an inline page (and warns in
free_large_kmalloc()).
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 Version: 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 |
||
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"value": "AV:N - nvmet-rdma is an in-kernel NVMe-oF target that processes NVMe commands and inline data from remote initiators over RDMA (RoCE/IB) via RDMA RECV completions, placing it in the same network-reachable class as nvmet-tcp and other remote fabric targets.\nAC:L - In deployments using inline_data_size above PAGE_SIZE (up to 16KB), a remote initiator fully controls the inline SGL offset and length in write commands and can deterministically trigger the integer underflow and multi-gigabyte scatterlist length without races or victim-specific timing.\nPR:N - Exploitation requires only remote NVMe-oF RDMA connectivity to a configured target subsystem; no local UNIX privileges or Linux capabilities on the victim host are needed, and the vulnerable recv/command path is reachable before or without mandatory DH-HMAC-CHAP on I/O queues.\nUI:N - Triggering the bug requires only sending crafted NVMe write commands with malicious inline SGL offsets over an established RDMA connection; no end-user actions such as mounting filesystems or opening files are required.\nS:U - The vulnerability corrupts kernel heap memory and backing storage on the NVMe target host itself; it does not cross a VM, container, or IOMMU security boundary to impact a separate security authority.\nC:H - The integer underflow sets scatterlist entries to ~4 GiB, causing the block backend to read far beyond the inline DMA buffer pages into adjacent kernel memory, and the erroneous sgl_free of inline pages creates use-after-free conditions enabling further information disclosure.\nI:H - Out-of-bounds kernel memory is incorporated into block write bios corrupting exported backing storage, and the erroneous freeing of inline scatterlist pages enables heap corruption primitives that can be leveraged for arbitrary memory writes or control-flow hijacking.\nA:H - Out-of-bounds access from multi-gigabyte scatterlist lengths, warnings from free_large_kmalloc() on freed inline pages, and nvmet fatal error handling can cause kernel oops, hung I/O, or panic on the storage target."
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CVE-2026-68376 (GCVE-0-2026-68376)
Vulnerability from cvelistv5
Published
2026-08-10 12:03
Modified
2026-08-19 16:34
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: fix auth_hmacs array size in struct sctp_cookie
The auth_hmacs array in struct sctp_cookie is supposed to store a complete
SCTP_AUTH_HMAC_ALGO parameter, which consists of a struct sctp_paramhdr
followed by N HMAC identifiers.
However, the array size was calculated using an extra 2 bytes instead of
sizeof(struct sctp_paramhdr), which is 4 bytes. When four HMAC identifiers
are configured, the HMAC-ALGO parameter stored in the endpoint is larger
than the auth_hmacs buffer in the cookie.
As a result, sctp_association_init() copies beyond the end of auth_hmacs
when initializing the association, corrupting the adjacent auth_chunks
field. This can lead to an invalid HMAC identifier being accepted and later
cause an out-of-bounds read in sctp_auth_get_hmac().
Fix the array size calculation by including the full SCTP parameter header
size.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1f485649f52929d9937b346a920a522a7363e202 Version: 1f485649f52929d9937b346a920a522a7363e202 Version: 1f485649f52929d9937b346a920a522a7363e202 Version: 1f485649f52929d9937b346a920a522a7363e202 Version: 1f485649f52929d9937b346a920a522a7363e202 Version: 1f485649f52929d9937b346a920a522a7363e202 Version: 1f485649f52929d9937b346a920a522a7363e202 Version: 1f485649f52929d9937b346a920a522a7363e202 |
||
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CVE-2026-46120 (GCVE-0-2026-46120)
Vulnerability from cvelistv5
Published
2026-05-28 09:35
Modified
2026-08-05 12:29
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ip6_gre: Use cached t->net in ip6erspan_changelink().
After commit 5e72ce3e3980 ("net: ipv6: Use link netns in newlink() of
rtnl_link_ops"), ip6erspan_newlink() correctly resolves the per-netns
ip6gre hash via link_net. ip6erspan_changelink() was not converted in
that series and still uses dev_net(dev), which diverges from the
device's creation netns after IFLA_NET_NS_FD migration.
This re-inserts the tunnel into the wrong per-netns hash. The
original netns keeps a stale entry. When that netns is later
destroyed, ip6gre_exit_rtnl_net() walks the stale entry, producing a
slab-use-after-free reported by KASAN, followed by a kernel BUG at
net/core/dev.c (LIST_POISON1) in unregister_netdevice_many_notify().
Reachable from an unprivileged user namespace (unshare --user
--map-root-user --net).
ip6gre_changelink() earlier in the same file already uses the cached
t->net; only ip6erspan_changelink() has the wrong shape.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2d665034f239412927b1e71329f20f001c92da09 Version: 2d665034f239412927b1e71329f20f001c92da09 Version: 2d665034f239412927b1e71329f20f001c92da09 Version: 2d665034f239412927b1e71329f20f001c92da09 Version: 2d665034f239412927b1e71329f20f001c92da09 Version: 2d665034f239412927b1e71329f20f001c92da09 Version: 2d665034f239412927b1e71329f20f001c92da09 Version: 2d665034f239412927b1e71329f20f001c92da09 Version: c6d72628352c949629af619b77b042e0fb5245e7 Version: 4.16.12 ≤ |
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CVE-2026-74480 (GCVE-0-2026-74480)
Vulnerability from cvelistv5
Published
2026-08-15 12:27
Modified
2026-08-19 16:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: bridge: stop fast-leave after deleting a port group
br_multicast_leave_group() iterates mp->ports with pp = &p->next in
its fast-leave path. After br_multicast_del_pg() removes p,
continuing the loop advances pp through the deleted entry.
If multicast-to-unicast was enabled, the bridge can hold multiple port
groups for the same port and group with different source MAC
addresses. Once multicast-to-unicast is disabled,
br_port_group_equal() matches those entries by port only. A fast leave
can then delete one entry and continue from its stale next pointer,
leaving mp->ports pointing at a deleted port group.
Fast leave only needs to remove one matching port group. Break after
br_multicast_del_pg() so the loop stops before dereferencing the
removed entry.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6db6f0eae6052b70885562e1733896647ec1d807 Version: 6db6f0eae6052b70885562e1733896647ec1d807 Version: 6db6f0eae6052b70885562e1733896647ec1d807 Version: 6db6f0eae6052b70885562e1733896647ec1d807 Version: 6db6f0eae6052b70885562e1733896647ec1d807 Version: 6db6f0eae6052b70885562e1733896647ec1d807 Version: 6db6f0eae6052b70885562e1733896647ec1d807 Version: 6db6f0eae6052b70885562e1733896647ec1d807 |
||
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CVE-2026-43493 (GCVE-0-2026-43493)
Vulnerability from cvelistv5
Published
2026-05-19 10:44
Modified
2026-08-05 12:28
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: pcrypt - Fix handling of MAY_BACKLOG requests
MAY_BACKLOG requests can return EBUSY. Handle them by checking
for that value and filtering out EINPROGRESS notifications.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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"versionStartIncluding": "2.6.34",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.140",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.86",
"versionStartIncluding": "2.6.34",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.27",
"versionStartIncluding": "2.6.34",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.0.4",
"versionStartIncluding": "2.6.34",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1",
"versionStartIncluding": "2.6.34",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: pcrypt - Fix handling of MAY_BACKLOG requests\n\nMAY_BACKLOG requests can return EBUSY. Handle them by checking\nfor that value and filtering out EINPROGRESS notifications."
}
],
"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 - pcrypt AEAD can sit under network-facing kernel crypto consumers such as kTLS/TIPC that process peer-supplied records or packets. In the highest reasonable deployment, a remote peer can drive the vulnerable encrypt/decrypt path through network traffic.\nAC:L - The trigger is child crypto backlog behavior under `CRYPTO_TFM_REQ_MAY_BACKLOG`; an attacker can induce queue pressure with concurrent requests or traffic. There is no race that depends on conditions outside the attacker\u0027s control.\nPR:N - The network-facing path requires no kernel privileges from the remote peer. The local AF_ALG AEAD path also has no capability gate, but the higher-severity network scenario is defensible.\nUI:N - No victim interaction is required once the affected crypto consumer is configured. The attacker only sends data or submits crypto requests.\nS:U - The bug corrupts kernel crypto/request state within the same kernel security authority. It is not a VM escape, IOMMU bypass, or other scope-changing boundary crossing.\nC:H - Mishandling `-EBUSY` can complete and free the request while the child request remains queued, leading to use-after-free on later callbacks. A kernel UAF is reasonably exploitable for high-impact information disclosure.\nI:H - The stale callback reuses freed request/padata memory and can drive list operations and completion paths on attacker-reclaimed objects. This is memory corruption with a plausible path to arbitrary write or control-flow corruption.\nA:H - At minimum, the premature completion and later queued callback can dereference or manipulate freed kernel memory. That can produce kernel oops/panic or list corruption, giving high availability impact."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:28:16.602Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9e"
},
{
"url": "https://git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084e"
},
{
"url": "https://git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236"
},
{
"url": "https://git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2"
},
{
"url": "https://git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276"
},
{
"url": "https://git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67"
},
{
"url": "https://git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a"
},
{
"url": "https://git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110"
}
],
"title": "crypto: pcrypt - Fix handling of MAY_BACKLOG requests",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-43493",
"datePublished": "2026-05-19T10:44:25.402Z",
"dateReserved": "2026-05-01T14:12:56.013Z",
"dateUpdated": "2026-08-05T12:28:16.602Z",
"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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