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CERTFR-2025-AVI-0941
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Microsoft | N/A | azl3 kata-containers-cc 3.15.0.aks0-5 | ||
| Microsoft | N/A | cbl2 binutils 2.37-17 | ||
| Microsoft | N/A | cbl2 coredns 1.11.1-22 versions antérieures à 1.11.1-24 | ||
| Microsoft | N/A | cbl2 bind 9.16.50-2 | ||
| Microsoft | N/A | azl3 kernel 6.6.104.2-4 | ||
| Microsoft | N/A | azl3 bind 9.20.11-1 | ||
| Microsoft | N/A | azl3 coredns 1.11.4-10 | ||
| Microsoft | N/A | azl3 binutils 2.41-9 |
References
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "azl3 kata-containers-cc 3.15.0.aks0-5",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "cbl2 binutils 2.37-17",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "cbl2 coredns 1.11.1-22 versions ant\u00e9rieures \u00e0 1.11.1-24",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "cbl2 bind 9.16.50-2",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "azl3 kernel 6.6.104.2-4",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "azl3 bind 9.20.11-1",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "azl3 coredns 1.11.4-10",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "azl3 binutils 2.41-9",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"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-2025-40064",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40064"
},
{
"name": "CVE-2025-40057",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40057"
},
{
"name": "CVE-2025-40055",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40055"
},
{
"name": "CVE-2025-40029",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40029"
},
{
"name": "CVE-2025-40048",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40048"
},
{
"name": "CVE-2025-62518",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-62518"
},
{
"name": "CVE-2025-40043",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40043"
},
{
"name": "CVE-2025-11840",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-11840"
},
{
"name": "CVE-2025-40780",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40780"
},
{
"name": "CVE-2025-40019",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40019"
},
{
"name": "CVE-2025-40039",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40039"
},
{
"name": "CVE-2025-40081",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40081"
},
{
"name": "CVE-2025-40026",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40026"
},
{
"name": "CVE-2025-40056",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40056"
},
{
"name": "CVE-2025-40052",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40052"
},
{
"name": "CVE-2025-40035",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40035"
},
{
"name": "CVE-2025-40020",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40020"
},
{
"name": "CVE-2025-40049",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40049"
},
{
"name": "CVE-2025-40024",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40024"
},
{
"name": "CVE-2025-40033",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40033"
},
{
"name": "CVE-2025-40075",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40075"
},
{
"name": "CVE-2025-40027",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40027"
},
{
"name": "CVE-2025-40032",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40032"
},
{
"name": "CVE-2025-40038",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40038"
},
{
"name": "CVE-2025-40778",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40778"
},
{
"name": "CVE-2025-40078",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40078"
},
{
"name": "CVE-2025-40074",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40074"
},
{
"name": "CVE-2025-40053",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40053"
},
{
"name": "CVE-2025-40040",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40040"
},
{
"name": "CVE-2025-40021",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40021"
},
{
"name": "CVE-2025-40044",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40044"
},
{
"name": "CVE-2025-40079",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40079"
},
{
"name": "CVE-2025-59530",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-59530"
},
{
"name": "CVE-2025-40018",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40018"
},
{
"name": "CVE-2025-40077",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40077"
},
{
"name": "CVE-2025-40071",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40071"
},
{
"name": "CVE-2025-40080",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40080"
},
{
"name": "CVE-2025-40068",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40068"
},
{
"name": "CVE-2025-40042",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40042"
},
{
"name": "CVE-2025-8677",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-8677"
},
{
"name": "CVE-2025-40060",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40060"
},
{
"name": "CVE-2025-40025",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40025"
},
{
"name": "CVE-2025-11839",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-11839"
},
{
"name": "CVE-2025-40065",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40065"
},
{
"name": "CVE-2025-40036",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40036"
},
{
"name": "CVE-2025-40030",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40030"
},
{
"name": "CVE-2025-40061",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40061"
},
{
"name": "CVE-2025-40051",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40051"
}
],
"initial_release_date": "2025-10-30T00:00:00",
"last_revision_date": "2025-10-30T00:00:00",
"links": [],
"reference": "CERTFR-2025-AVI-0941",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-10-30T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Microsoft. Elles permettent \u00e0 un attaquant de provoquer un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Microsoft",
"vendor_advisories": [
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40079",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40079"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40030",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40030"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40040",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40040"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40043",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40043"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-8677",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-8677"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40053",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40053"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40051",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40051"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40026",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40026"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40044",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40044"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40052",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40052"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40780",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40780"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-59530",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59530"
},
{
"published_at": "2025-10-26",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40021",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40021"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40080",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40080"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40077",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40077"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40068",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40068"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40057",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40057"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40039",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40039"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-11840",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-11840"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40042",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40042"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40049",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40049"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-11839",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-11839"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40081",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40081"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40035",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40035"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40056",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40056"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40064",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40064"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40071",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40071"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40061",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40061"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40033",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40033"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40778",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40778"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40025",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40025"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40074",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40074"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40055",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40055"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40019",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40019"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40027",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40027"
},
{
"published_at": "2025-10-26",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40024",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40024"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40029",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40029"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40065",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40065"
},
{
"published_at": "2025-10-26",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40020",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40020"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-62518",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62518"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40075",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40075"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40060",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40060"
},
{
"published_at": "2025-10-25",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40018",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40018"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40032",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40032"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40038",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40038"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40078",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40078"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40036",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40036"
},
{
"published_at": "2025-10-29",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-40048",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40048"
}
]
}
CVE-2025-40778 (GCVE-0-2025-40778)
Vulnerability from cvelistv5
Published
2025-10-22 15:47
Modified
2026-02-26 16:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Summary
Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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"options": [
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"timestamp": "2025-11-07T04:56:12.747619Z",
"version": "2.0.3"
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}
],
"title": "CISA ADP Vulnrichment"
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"credits": [
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"value": "ISC would like to thank Yuxiao Wu, Yunyi Zhang, Baojun Liu, and Haixin Duan from Tsinghua University for bringing this vulnerability to our attention."
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CVE-2025-40026 (GCVE-0-2025-40026)
Vulnerability from cvelistv5
Published
2025-10-28 09:32
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O
When completing emulation of instruction that generated a userspace exit
for I/O, don't recheck L1 intercepts as KVM has already finished that
phase of instruction execution, i.e. has already committed to allowing L2
to perform I/O. If L1 (or host userspace) modifies the I/O permission
bitmaps during the exit to userspace, KVM will treat the access as being
intercepted despite already having emulated the I/O access.
Pivot on EMULTYPE_NO_DECODE to detect that KVM is completing emulation.
Of the three users of EMULTYPE_NO_DECODE, only complete_emulated_io() (the
intended "recipient") can reach the code in question. gp_interception()'s
use is mutually exclusive with is_guest_mode(), and
complete_emulated_insn_gp() unconditionally pairs EMULTYPE_NO_DECODE with
EMULTYPE_SKIP.
The bad behavior was detected by a syzkaller program that toggles port I/O
interception during the userspace I/O exit, ultimately resulting in a WARN
on vcpu->arch.pio.count being non-zero due to KVM no completing emulation
of the I/O instruction.
WARNING: CPU: 23 PID: 1083 at arch/x86/kvm/x86.c:8039 emulator_pio_in_out+0x154/0x170 [kvm]
Modules linked in: kvm_intel kvm irqbypass
CPU: 23 UID: 1000 PID: 1083 Comm: repro Not tainted 6.16.0-rc5-c1610d2d66b1-next-vm #74 NONE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
RIP: 0010:emulator_pio_in_out+0x154/0x170 [kvm]
PKRU: 55555554
Call Trace:
<TASK>
kvm_fast_pio+0xd6/0x1d0 [kvm]
vmx_handle_exit+0x149/0x610 [kvm_intel]
kvm_arch_vcpu_ioctl_run+0xda8/0x1ac0 [kvm]
kvm_vcpu_ioctl+0x244/0x8c0 [kvm]
__x64_sys_ioctl+0x8a/0xd0
do_syscall_64+0x5d/0xc60
entry_SYSCALL_64_after_hwframe+0x4b/0x53
</TASK>
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 Version: 8a76d7f25f8f24fc5a328c8e15e4a7313cf141b9 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Don\u0027t (re)check L1 intercepts when completing userspace I/O\n\nWhen completing emulation of instruction that generated a userspace exit\nfor I/O, don\u0027t recheck L1 intercepts as KVM has already finished that\nphase of instruction execution, i.e. has already committed to allowing L2\nto perform I/O. If L1 (or host userspace) modifies the I/O permission\nbitmaps during the exit to userspace, KVM will treat the access as being\nintercepted despite already having emulated the I/O access.\n\nPivot on EMULTYPE_NO_DECODE to detect that KVM is completing emulation.\nOf the three users of EMULTYPE_NO_DECODE, only complete_emulated_io() (the\nintended \"recipient\") can reach the code in question. gp_interception()\u0027s\nuse is mutually exclusive with is_guest_mode(), and\ncomplete_emulated_insn_gp() unconditionally pairs EMULTYPE_NO_DECODE with\nEMULTYPE_SKIP.\n\nThe bad behavior was detected by a syzkaller program that toggles port I/O\ninterception during the userspace I/O exit, ultimately resulting in a WARN\non vcpu-\u003earch.pio.count being non-zero due to KVM no completing emulation\nof the I/O instruction.\n\n WARNING: CPU: 23 PID: 1083 at arch/x86/kvm/x86.c:8039 emulator_pio_in_out+0x154/0x170 [kvm]\n Modules linked in: kvm_intel kvm irqbypass\n CPU: 23 UID: 1000 PID: 1083 Comm: repro Not tainted 6.16.0-rc5-c1610d2d66b1-next-vm #74 NONE\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\n RIP: 0010:emulator_pio_in_out+0x154/0x170 [kvm]\n PKRU: 55555554\n Call Trace:\n \u003cTASK\u003e\n kvm_fast_pio+0xd6/0x1d0 [kvm]\n vmx_handle_exit+0x149/0x610 [kvm_intel]\n kvm_arch_vcpu_ioctl_run+0xda8/0x1ac0 [kvm]\n kvm_vcpu_ioctl+0x244/0x8c0 [kvm]\n __x64_sys_ioctl+0x8a/0xd0\n do_syscall_64+0x5d/0xc60\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n \u003c/TASK\u003e"
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"value": "AV:L - Exploitation requires either `KVM_RUN`/`ioctl()` access to `/dev/kvm` on the host or code execution inside a guest running a nested hypervisor; there is no network-reachable path to `x86_emulate_insn()`.\nAC:L - The syzkaller reproducer deterministically toggles the port-I/O bitmap while servicing the `KVM_EXIT_IO` exit, and the guest-side variant only needs a second L1 vCPU to write the bitmap page \u2014 the attacker controls both sides of the window, and nested virt is enabled by default on kvm_intel/kvm_amd.\nPR:L - The attacker needs only unprivileged access to `/dev/kvm` (commonly granted via the `kvm` group or a VMM process), or ordinary code execution inside a guest; no root or CAP_SYS_ADMIN in the init namespace is required.\nUI:N - The vCPU thread reaches the buggy re-check on the normal `KVM_RUN` re-entry path after a userspace I/O exit; no victim action is needed.\nS:C - A guest (L1/L2) triggers corrupted state and a WARN/panic in the host kernel\u0027s KVM module, crossing the guest-to-host security boundary, and the aborted emulation also crosses the L1/L2 authority boundary by delivering an I/O intercept L1 never legitimately received.\nC:L - The stale `pio.count`/`pio.size` makes the next emulated `in` take the completion path and hand back data captured during the earlier I/O read on L2\u0027s behalf, leaking bounded `pio_data` contents across the L1/L2 boundary; the copy is capped at the 1024-byte `read_cache`, so it is not an arbitrary read.\nI:L - KVM injects a nested IOIO VM-exit to L1 for an access it already performed against the host device model (double execution) and subsequently substitutes stale `pio_data` for a real port read, corrupting guest I/O state in a limited, non-arbitrary way.\nA:H - The un-cleared `vcpu-\u003earch.pio.count` trips `WARN_ON_ONCE()` in `emulator_pio_in_out()` in the host kernel \u2014 a full host panic on the widely deployed `panic_on_warn=1` configuration \u2014 and leaves the vCPU with permanently desynchronized emulation state."
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"datePublished": "2025-10-28T09:32:33.075Z",
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CVE-2025-40018 (GCVE-0-2025-40018)
Vulnerability from cvelistv5
Published
2025-10-24 11:44
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipvs: Defer ip_vs_ftp unregister during netns cleanup
On the netns cleanup path, __ip_vs_ftp_exit() may unregister ip_vs_ftp
before connections with valid cp->app pointers are flushed, leading to a
use-after-free.
Fix this by introducing a global `exiting_module` flag, set to true in
ip_vs_ftp_exit() before unregistering the pernet subsystem. In
__ip_vs_ftp_exit(), skip ip_vs_ftp unregister if called during netns
cleanup (when exiting_module is false) and defer it to
__ip_vs_cleanup_batch(), which unregisters all apps after all connections
are flushed. If called during module exit, unregister ip_vs_ftp
immediately.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 61b1ab4583e275af216c8454b9256de680499b19 Version: 61b1ab4583e275af216c8454b9256de680499b19 Version: 61b1ab4583e275af216c8454b9256de680499b19 Version: 61b1ab4583e275af216c8454b9256de680499b19 Version: 61b1ab4583e275af216c8454b9256de680499b19 Version: 61b1ab4583e275af216c8454b9256de680499b19 Version: 61b1ab4583e275af216c8454b9256de680499b19 Version: 61b1ab4583e275af216c8454b9256de680499b19 |
||
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"value": "AV:L - The use-after-free is triggered by network namespace teardown, which requires local access (unshare/exit of a netns, or `ip netns del`); while a remote client can populate the FTP-bound IPVS connections through the load balancer, the free-and-use sequence itself is driven locally.\nAC:L - The bad ordering is deterministic \u2014 pernet exit callbacks always run in reverse registration order, so `__ip_vs_ftp_exit()` always precedes the connection flush \u2014 and the attacker controls both the connection creation and the netns destruction, with ordinary heap grooming sufficing to reclaim the freed `ip_vs_app` objects.\nPR:L - Configuring the IPVS FTP virtual service needs CAP_NET_ADMIN, but `do_ip_vs_set_ctl()` checks `ns_capable(net-\u003euser_ns, CAP_NET_ADMIN)` and IPVS was explicitly made usable in non-init user namespaces, so an unprivileged local user obtains it with `unshare -Urn`.\nUI:N - The attacker performs the entire sequence \u2014 namespace creation, IPVS service setup, connection establishment and namespace teardown \u2014 with no action from any other user.\nS:U - The corruption and any resulting privilege escalation stay within the kernel\u0027s own security authority; no VM, IOMMU, or other trust boundary is crossed.\nC:H - `ip_vs_unbind_app()` dereferences the freed `inc` and the already-kfree()\u0027d `inc-\u003eapp`, so reclaiming those slab objects lets an attacker read and leak kernel heap contents and pointers.\nI:H - The use-after-free yields a write primitive (`atomic_dec(\u0026inc-\u003eusecnt)` and `module_put()` through a dangling `inc-\u003eapp` pointer) plus an indirect call through the freed `inc-\u003edone_conn`/`unbind_conn` function pointers, which is a control-flow hijack primitive after heap spraying.\nA:H - Even unexploited, the use-after-free calls a function pointer from reclaimed memory and corrupts refcounts during netns cleanup, reliably producing a kernel oops or panic."
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CVE-2025-40038 (GCVE-0-2025-40038)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
KVM: SVM: Skip fastpath emulation on VM-Exit if next RIP isn't valid
Skip the WRMSR and HLT fastpaths in SVM's VM-Exit handler if the next RIP
isn't valid, e.g. because KVM is running with nrips=false. SVM must
decode and emulate to skip the instruction if the CPU doesn't provide the
next RIP, and getting the instruction bytes to decode requires reading
guest memory. Reading guest memory through the emulator can fault, i.e.
can sleep, which is disallowed since the fastpath handlers run with IRQs
disabled.
BUG: sleeping function called from invalid context at ./include/linux/uaccess.h:106
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 32611, name: qemu
preempt_count: 1, expected: 0
INFO: lockdep is turned off.
irq event stamp: 30580
hardirqs last enabled at (30579): [<ffffffffc08b2527>] vcpu_run+0x1787/0x1db0 [kvm]
hardirqs last disabled at (30580): [<ffffffffb4f62e32>] __schedule+0x1e2/0xed0
softirqs last enabled at (30570): [<ffffffffb4247a64>] fpu_swap_kvm_fpstate+0x44/0x210
softirqs last disabled at (30568): [<ffffffffb4247a64>] fpu_swap_kvm_fpstate+0x44/0x210
CPU: 298 UID: 0 PID: 32611 Comm: qemu Tainted: G U 6.16.0-smp--e6c618b51cfe-sleep #782 NONE
Tainted: [U]=USER
Hardware name: Google Astoria-Turin/astoria, BIOS 0.20241223.2-0 01/17/2025
Call Trace:
<TASK>
dump_stack_lvl+0x7d/0xb0
__might_resched+0x271/0x290
__might_fault+0x28/0x80
kvm_vcpu_read_guest_page+0x8d/0xc0 [kvm]
kvm_fetch_guest_virt+0x92/0xc0 [kvm]
__do_insn_fetch_bytes+0xf3/0x1e0 [kvm]
x86_decode_insn+0xd1/0x1010 [kvm]
x86_emulate_instruction+0x105/0x810 [kvm]
__svm_skip_emulated_instruction+0xc4/0x140 [kvm_amd]
handle_fastpath_invd+0xc4/0x1a0 [kvm]
vcpu_run+0x11a1/0x1db0 [kvm]
kvm_arch_vcpu_ioctl_run+0x5cc/0x730 [kvm]
kvm_vcpu_ioctl+0x578/0x6a0 [kvm]
__se_sys_ioctl+0x6d/0xb0
do_syscall_64+0x8a/0x2c0
entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x7f479d57a94b
</TASK>
Note, this is essentially a reapply of commit 5c30e8101e8d ("KVM: SVM:
Skip WRMSR fastpath on VM-Exit if next RIP isn't valid"), but with
different justification (KVM now grabs SRCU when skipping the instruction
for other reasons).
References
| URL | Tags | |
|---|---|---|
Impacted products
{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SVM: Skip fastpath emulation on VM-Exit if next RIP isn\u0027t valid\n\nSkip the WRMSR and HLT fastpaths in SVM\u0027s VM-Exit handler if the next RIP\nisn\u0027t valid, e.g. because KVM is running with nrips=false. SVM must\ndecode and emulate to skip the instruction if the CPU doesn\u0027t provide the\nnext RIP, and getting the instruction bytes to decode requires reading\nguest memory. Reading guest memory through the emulator can fault, i.e.\ncan sleep, which is disallowed since the fastpath handlers run with IRQs\ndisabled.\n\n BUG: sleeping function called from invalid context at ./include/linux/uaccess.h:106\n in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 32611, name: qemu\n preempt_count: 1, expected: 0\n INFO: lockdep is turned off.\n irq event stamp: 30580\n hardirqs last enabled at (30579): [\u003cffffffffc08b2527\u003e] vcpu_run+0x1787/0x1db0 [kvm]\n hardirqs last disabled at (30580): [\u003cffffffffb4f62e32\u003e] __schedule+0x1e2/0xed0\n softirqs last enabled at (30570): [\u003cffffffffb4247a64\u003e] fpu_swap_kvm_fpstate+0x44/0x210\n softirqs last disabled at (30568): [\u003cffffffffb4247a64\u003e] fpu_swap_kvm_fpstate+0x44/0x210\n CPU: 298 UID: 0 PID: 32611 Comm: qemu Tainted: G U 6.16.0-smp--e6c618b51cfe-sleep #782 NONE\n Tainted: [U]=USER\n Hardware name: Google Astoria-Turin/astoria, BIOS 0.20241223.2-0 01/17/2025\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x7d/0xb0\n __might_resched+0x271/0x290\n __might_fault+0x28/0x80\n kvm_vcpu_read_guest_page+0x8d/0xc0 [kvm]\n kvm_fetch_guest_virt+0x92/0xc0 [kvm]\n __do_insn_fetch_bytes+0xf3/0x1e0 [kvm]\n x86_decode_insn+0xd1/0x1010 [kvm]\n x86_emulate_instruction+0x105/0x810 [kvm]\n __svm_skip_emulated_instruction+0xc4/0x140 [kvm_amd]\n handle_fastpath_invd+0xc4/0x1a0 [kvm]\n vcpu_run+0x11a1/0x1db0 [kvm]\n kvm_arch_vcpu_ioctl_run+0x5cc/0x730 [kvm]\n kvm_vcpu_ioctl+0x578/0x6a0 [kvm]\n __se_sys_ioctl+0x6d/0xb0\n do_syscall_64+0x8a/0x2c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n RIP: 0033:0x7f479d57a94b\n \u003c/TASK\u003e\n\nNote, this is essentially a reapply of commit 5c30e8101e8d (\"KVM: SVM:\nSkip WRMSR fastpath on VM-Exit if next RIP isn\u0027t valid\"), but with\ndifferent justification (KVM now grabs SRCU when skipping the instruction\nfor other reasons)."
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"value": "AV:L - The attacker must execute instructions on a vCPU, i.e. run code inside a KVM guest on the host (or open /dev/kvm locally and run a minimal guest); there is no network-facing path to `svm_exit_handlers_fastpath()`. Per convention for KVM guest-to-host issues this is Local.\nAC:L - On an affected host (AMD without X86_FEATURE_NRIPS, `kvm_amd.nrips=0`, or a VMCB with `next_rip==0`) a single guest `HLT` \u2014 which every guest idle loop executes \u2014 deterministically drives `__svm_skip_emulated_instruction()` into the emulator with IRQs disabled, so the attacker can trigger it at will and repeatedly.\nPR:N - No privileges in the host\u0027s security authority are needed \u2014 an ordinary untrusted tenant VM triggers this with instructions any guest OS executes on its own, with no host credential, capability, or namespace involved.\nUI:N - The guest triggers the condition entirely on its own via a normal HLT/WRMSR VM-Exit; no host administrator or other user has to do anything.\nS:C - The vulnerable code is guest-controlled input handling in KVM, but the damage lands on the host kernel (atomic-context violation, BUG splat, potential lockup), crossing the guest/host virtualization boundary into a different security authority.\nC:N - The bug is a sleeping-in-atomic-context violation with no out-of-bounds or use-after-free access; the guest gains no read primitive, and the debug splat lands only in host dmesg which the guest cannot observe.\nI:N - No memory is corrupted and no write primitive is produced \u2014 the fetch either succeeds normally or fails with -EFAULT, and the only state change is the attacker\u0027s own guest being terminated with KVM_EXIT_INTERNAL_ERROR.\nA:H - Every guest HLT produces a host `BUG: sleeping function called from invalid context` splat (log flood, and a panic under panic_on_warn), and on CONFIG_PREEMPT_COUNT=n kernels the host actually blocks in handle_mm_fault() with hard IRQs disabled, risking deadlock/hard lockup; the failure path also spuriously kills the VM."
}
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CVE-2025-40077 (GCVE-0-2025-40077)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to avoid overflow while left shift operation
Should cast type of folio->index from pgoff_t to loff_t to avoid overflow
while left shift operation.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-40042 (GCVE-0-2025-40042)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tracing: Fix race condition in kprobe initialization causing NULL pointer dereference
There is a critical race condition in kprobe initialization that can lead to
NULL pointer dereference and kernel crash.
[1135630.084782] Unable to handle kernel paging request at virtual address 0000710a04630000
...
[1135630.260314] pstate: 404003c9 (nZcv DAIF +PAN -UAO)
[1135630.269239] pc : kprobe_perf_func+0x30/0x260
[1135630.277643] lr : kprobe_dispatcher+0x44/0x60
[1135630.286041] sp : ffffaeff4977fa40
[1135630.293441] x29: ffffaeff4977fa40 x28: ffffaf015340e400
[1135630.302837] x27: 0000000000000000 x26: 0000000000000000
[1135630.312257] x25: ffffaf029ed108a8 x24: ffffaf015340e528
[1135630.321705] x23: ffffaeff4977fc50 x22: ffffaeff4977fc50
[1135630.331154] x21: 0000000000000000 x20: ffffaeff4977fc50
[1135630.340586] x19: ffffaf015340e400 x18: 0000000000000000
[1135630.349985] x17: 0000000000000000 x16: 0000000000000000
[1135630.359285] x15: 0000000000000000 x14: 0000000000000000
[1135630.368445] x13: 0000000000000000 x12: 0000000000000000
[1135630.377473] x11: 0000000000000000 x10: 0000000000000000
[1135630.386411] x9 : 0000000000000000 x8 : 0000000000000000
[1135630.395252] x7 : 0000000000000000 x6 : 0000000000000000
[1135630.403963] x5 : 0000000000000000 x4 : 0000000000000000
[1135630.412545] x3 : 0000710a04630000 x2 : 0000000000000006
[1135630.421021] x1 : ffffaeff4977fc50 x0 : 0000710a04630000
[1135630.429410] Call trace:
[1135630.434828] kprobe_perf_func+0x30/0x260
[1135630.441661] kprobe_dispatcher+0x44/0x60
[1135630.448396] aggr_pre_handler+0x70/0xc8
[1135630.454959] kprobe_breakpoint_handler+0x140/0x1e0
[1135630.462435] brk_handler+0xbc/0xd8
[1135630.468437] do_debug_exception+0x84/0x138
[1135630.475074] el1_dbg+0x18/0x8c
[1135630.480582] security_file_permission+0x0/0xd0
[1135630.487426] vfs_write+0x70/0x1c0
[1135630.493059] ksys_write+0x5c/0xc8
[1135630.498638] __arm64_sys_write+0x24/0x30
[1135630.504821] el0_svc_common+0x78/0x130
[1135630.510838] el0_svc_handler+0x38/0x78
[1135630.516834] el0_svc+0x8/0x1b0
kernel/trace/trace_kprobe.c: 1308
0xffff3df8995039ec <kprobe_perf_func+0x2c>: ldr x21, [x24,#120]
include/linux/compiler.h: 294
0xffff3df8995039f0 <kprobe_perf_func+0x30>: ldr x1, [x21,x0]
kernel/trace/trace_kprobe.c
1308: head = this_cpu_ptr(call->perf_events);
1309: if (hlist_empty(head))
1310: return 0;
crash> struct trace_event_call -o
struct trace_event_call {
...
[120] struct hlist_head *perf_events; //(call->perf_event)
...
}
crash> struct trace_event_call ffffaf015340e528
struct trace_event_call {
...
perf_events = 0xffff0ad5fa89f088, //this value is correct, but x21 = 0
...
}
Race Condition Analysis:
The race occurs between kprobe activation and perf_events initialization:
CPU0 CPU1
==== ====
perf_kprobe_init
perf_trace_event_init
tp_event->perf_events = list;(1)
tp_event->class->reg (2)← KPROBE ACTIVE
Debug exception triggers
...
kprobe_dispatcher
kprobe_perf_func (tk->tp.flags & TP_FLAG_PROFILE)
head = this_cpu_ptr(call->perf_events)(3)
(perf_events is still NULL)
Problem:
1. CPU0 executes (1) assigning tp_event->perf_events = list
2. CPU0 executes (2) enabling kprobe functionality via class->reg()
3. CPU1 triggers and reaches kprobe_dispatcher
4. CPU1 checks TP_FLAG_PROFILE - condition passes (step 2 completed)
5. CPU1 calls kprobe_perf_func() and crashes at (3) because
call->perf_events is still NULL
CPU1 sees that kprobe functionality is enabled but does not see that
perf_events has been assigned.
Add pairing read an
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 50d780560785b068c358675c5f0bf6c83b5c373e Version: 50d780560785b068c358675c5f0bf6c83b5c373e Version: 50d780560785b068c358675c5f0bf6c83b5c373e Version: 50d780560785b068c358675c5f0bf6c83b5c373e Version: 50d780560785b068c358675c5f0bf6c83b5c373e Version: 50d780560785b068c358675c5f0bf6c83b5c373e Version: 50d780560785b068c358675c5f0bf6c83b5c373e Version: 50d780560785b068c358675c5f0bf6c83b5c373e |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix race condition in kprobe initialization causing NULL pointer dereference\n\nThere is a critical race condition in kprobe initialization that can lead to\nNULL pointer dereference and kernel crash.\n\n[1135630.084782] Unable to handle kernel paging request at virtual address 0000710a04630000\n...\n[1135630.260314] pstate: 404003c9 (nZcv DAIF +PAN -UAO)\n[1135630.269239] pc : kprobe_perf_func+0x30/0x260\n[1135630.277643] lr : kprobe_dispatcher+0x44/0x60\n[1135630.286041] sp : ffffaeff4977fa40\n[1135630.293441] x29: ffffaeff4977fa40 x28: ffffaf015340e400\n[1135630.302837] x27: 0000000000000000 x26: 0000000000000000\n[1135630.312257] x25: ffffaf029ed108a8 x24: ffffaf015340e528\n[1135630.321705] x23: ffffaeff4977fc50 x22: ffffaeff4977fc50\n[1135630.331154] x21: 0000000000000000 x20: ffffaeff4977fc50\n[1135630.340586] x19: ffffaf015340e400 x18: 0000000000000000\n[1135630.349985] x17: 0000000000000000 x16: 0000000000000000\n[1135630.359285] x15: 0000000000000000 x14: 0000000000000000\n[1135630.368445] x13: 0000000000000000 x12: 0000000000000000\n[1135630.377473] x11: 0000000000000000 x10: 0000000000000000\n[1135630.386411] x9 : 0000000000000000 x8 : 0000000000000000\n[1135630.395252] x7 : 0000000000000000 x6 : 0000000000000000\n[1135630.403963] x5 : 0000000000000000 x4 : 0000000000000000\n[1135630.412545] x3 : 0000710a04630000 x2 : 0000000000000006\n[1135630.421021] x1 : ffffaeff4977fc50 x0 : 0000710a04630000\n[1135630.429410] Call trace:\n[1135630.434828] kprobe_perf_func+0x30/0x260\n[1135630.441661] kprobe_dispatcher+0x44/0x60\n[1135630.448396] aggr_pre_handler+0x70/0xc8\n[1135630.454959] kprobe_breakpoint_handler+0x140/0x1e0\n[1135630.462435] brk_handler+0xbc/0xd8\n[1135630.468437] do_debug_exception+0x84/0x138\n[1135630.475074] el1_dbg+0x18/0x8c\n[1135630.480582] security_file_permission+0x0/0xd0\n[1135630.487426] vfs_write+0x70/0x1c0\n[1135630.493059] ksys_write+0x5c/0xc8\n[1135630.498638] __arm64_sys_write+0x24/0x30\n[1135630.504821] el0_svc_common+0x78/0x130\n[1135630.510838] el0_svc_handler+0x38/0x78\n[1135630.516834] el0_svc+0x8/0x1b0\n\nkernel/trace/trace_kprobe.c: 1308\n0xffff3df8995039ec \u003ckprobe_perf_func+0x2c\u003e: ldr x21, [x24,#120]\ninclude/linux/compiler.h: 294\n0xffff3df8995039f0 \u003ckprobe_perf_func+0x30\u003e: ldr x1, [x21,x0]\n\nkernel/trace/trace_kprobe.c\n1308: head = this_cpu_ptr(call-\u003eperf_events);\n1309: if (hlist_empty(head))\n1310: \treturn 0;\n\ncrash\u003e struct trace_event_call -o\nstruct trace_event_call {\n ...\n [120] struct hlist_head *perf_events; //(call-\u003eperf_event)\n ...\n}\n\ncrash\u003e struct trace_event_call ffffaf015340e528\nstruct trace_event_call {\n ...\n perf_events = 0xffff0ad5fa89f088, //this value is correct, but x21 = 0\n ...\n}\n\nRace Condition Analysis:\n\nThe race occurs between kprobe activation and perf_events initialization:\n\n CPU0 CPU1\n ==== ====\n perf_kprobe_init\n perf_trace_event_init\n tp_event-\u003eperf_events = list;(1)\n tp_event-\u003eclass-\u003ereg (2)\u2190 KPROBE ACTIVE\n Debug exception triggers\n ...\n kprobe_dispatcher\n kprobe_perf_func (tk-\u003etp.flags \u0026 TP_FLAG_PROFILE)\n head = this_cpu_ptr(call-\u003eperf_events)(3)\n (perf_events is still NULL)\n\nProblem:\n1. CPU0 executes (1) assigning tp_event-\u003eperf_events = list\n2. CPU0 executes (2) enabling kprobe functionality via class-\u003ereg()\n3. CPU1 triggers and reaches kprobe_dispatcher\n4. CPU1 checks TP_FLAG_PROFILE - condition passes (step 2 completed)\n5. CPU1 calls kprobe_perf_func() and crashes at (3) because\n call-\u003eperf_events is still NULL\n\nCPU1 sees that kprobe functionality is enabled but does not see that\nperf_events has been assigned.\n\nAdd pairing read an\n---truncated---"
}
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CVE-2025-62518 (GCVE-0-2025-62518)
Vulnerability from cvelistv5
Published
2025-10-21 16:13
Modified
2025-10-22 13:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Summary
astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2025-40036 (GCVE-0-2025-40036)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: fix possible map leak in fastrpc_put_args
copy_to_user() failure would cause an early return without cleaning up
the fdlist, which has been updated by the DSP. This could lead to map
leak. Fix this by redirecting to a cleanup path on failure, ensuring
that all mapped buffers are properly released before returning.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-40049 (GCVE-0-2025-40049)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Squashfs: fix uninit-value in squashfs_get_parent
Syzkaller reports a "KMSAN: uninit-value in squashfs_get_parent" bug.
This is caused by open_by_handle_at() being called with a file handle
containing an invalid parent inode number. In particular the inode number
is that of a symbolic link, rather than a directory.
Squashfs_get_parent() gets called with that symbolic link inode, and
accesses the parent member field.
unsigned int parent_ino = squashfs_i(inode)->parent;
Because non-directory inodes in Squashfs do not have a parent value, this
is uninitialised, and this causes an uninitialised value access.
The fix is to initialise parent with the invalid inode 0, which will cause
an EINVAL error to be returned.
Regular inodes used to share the parent field with the block_list_start
field. This is removed in this commit to enable the parent field to
contain the invalid inode number 0.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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"url": "https://git.kernel.org/stable/c/91b99db7a92e57ff48a96a1b10fddfd2547e7f53"
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"url": "https://git.kernel.org/stable/c/74058c0a9fc8b2b4d5f4a0ef7ee2cfa66a9e49cf"
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CVE-2025-40780 (GCVE-0-2025-40780)
Vulnerability from cvelistv5
Published
2025-10-22 15:48
Modified
2025-11-04 21:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-341 - Predictable from Observable State
Summary
In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use.
This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-40025 (GCVE-0-2025-40025)
Vulnerability from cvelistv5
Published
2025-10-28 09:32
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check on node footer for non inode dnode
As syzbot reported below:
------------[ cut here ]------------
kernel BUG at fs/f2fs/file.c:1243!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5354 Comm: syz.0.0 Not tainted 6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 PREEMPT(full)
RIP: 0010:f2fs_truncate_hole+0x69e/0x6c0 fs/f2fs/file.c:1243
Call Trace:
<TASK>
f2fs_punch_hole+0x2db/0x330 fs/f2fs/file.c:1306
f2fs_fallocate+0x546/0x990 fs/f2fs/file.c:2018
vfs_fallocate+0x666/0x7e0 fs/open.c:342
ksys_fallocate fs/open.c:366 [inline]
__do_sys_fallocate fs/open.c:371 [inline]
__se_sys_fallocate fs/open.c:369 [inline]
__x64_sys_fallocate+0xc0/0x110 fs/open.c:369
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1e65f8ebe9
w/ a fuzzed image, f2fs may encounter panic due to it detects inconsistent
truncation range in direct node in f2fs_truncate_hole().
The root cause is: a non-inode dnode may has the same footer.ino and
footer.nid, so the dnode will be parsed as an inode, then ADDRS_PER_PAGE()
may return wrong blkaddr count which may be 923 typically, by chance,
dn.ofs_in_node is equal to 923, then count can be calculated to 0 in below
statement, later it will trigger panic w/ f2fs_bug_on(, count == 0 || ...).
count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
This patch introduces a new node_type NODE_TYPE_NON_INODE, then allowing
passing the new_type to sanity_check_node_footer in f2fs_get_node_folio()
to detect corruption that a non-inode dnode has the same footer.ino and
footer.nid.
Scripts to reproduce:
mkfs.f2fs -f /dev/vdb
mount /dev/vdb /mnt/f2fs
touch /mnt/f2fs/foo
touch /mnt/f2fs/bar
dd if=/dev/zero of=/mnt/f2fs/foo bs=1M count=8
umount /mnt/f2fs
inject.f2fs --node --mb i_nid --nid 4 --idx 0 --val 5 /dev/vdb
mount /dev/vdb /mnt/f2fs
xfs_io /mnt/f2fs/foo -c "fpunch 6984k 4k"
References
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on node footer for non inode dnode\n\nAs syzbot reported below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/file.c:1243!\nOops: invalid opcode: 0000 [#1] SMP KASAN NOPTI\nCPU: 0 UID: 0 PID: 5354 Comm: syz.0.0 Not tainted 6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 PREEMPT(full)\nRIP: 0010:f2fs_truncate_hole+0x69e/0x6c0 fs/f2fs/file.c:1243\nCall Trace:\n \u003cTASK\u003e\n f2fs_punch_hole+0x2db/0x330 fs/f2fs/file.c:1306\n f2fs_fallocate+0x546/0x990 fs/f2fs/file.c:2018\n vfs_fallocate+0x666/0x7e0 fs/open.c:342\n ksys_fallocate fs/open.c:366 [inline]\n __do_sys_fallocate fs/open.c:371 [inline]\n __se_sys_fallocate fs/open.c:369 [inline]\n __x64_sys_fallocate+0xc0/0x110 fs/open.c:369\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f1e65f8ebe9\n\nw/ a fuzzed image, f2fs may encounter panic due to it detects inconsistent\ntruncation range in direct node in f2fs_truncate_hole().\n\nThe root cause is: a non-inode dnode may has the same footer.ino and\nfooter.nid, so the dnode will be parsed as an inode, then ADDRS_PER_PAGE()\nmay return wrong blkaddr count which may be 923 typically, by chance,\ndn.ofs_in_node is equal to 923, then count can be calculated to 0 in below\nstatement, later it will trigger panic w/ f2fs_bug_on(, count == 0 || ...).\n\n\tcount = min(end_offset - dn.ofs_in_node, pg_end - pg_start);\n\nThis patch introduces a new node_type NODE_TYPE_NON_INODE, then allowing\npassing the new_type to sanity_check_node_footer in f2fs_get_node_folio()\nto detect corruption that a non-inode dnode has the same footer.ino and\nfooter.nid.\n\nScripts to reproduce:\nmkfs.f2fs -f /dev/vdb\nmount /dev/vdb /mnt/f2fs\ntouch /mnt/f2fs/foo\ntouch /mnt/f2fs/bar\ndd if=/dev/zero of=/mnt/f2fs/foo bs=1M count=8\numount /mnt/f2fs\ninject.f2fs --node --mb i_nid --nid 4 --idx 0 --val 5 /dev/vdb\nmount /dev/vdb /mnt/f2fs\nxfs_io /mnt/f2fs/foo -c \"fpunch 6984k 4k\""
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CVE-2025-40020 (GCVE-0-2025-40020)
Vulnerability from cvelistv5
Published
2025-10-24 12:24
Modified
2026-05-11 21:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: peak_usb: fix shift-out-of-bounds issue
Explicitly uses a 64-bit constant when the number of bits used for its
shifting is 32 (which is the case for PC CAN FD interfaces supported by
this driver).
[mkl: update subject, apply manually]
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d Version: bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d |
||
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CVE-2025-40033 (GCVE-0-2025-40033)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable()
pru_rproc_set_ctable() accessed rproc->priv before the IS_ERR_OR_NULL
check, which could lead to a null pointer dereference. Move the pru
assignment, ensuring we never dereference a NULL rproc pointer.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-40061 (GCVE-0-2025-40061)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix race in do_task() when draining
When do_task() exhausts its iteration budget (!ret), it sets the state
to TASK_STATE_IDLE to reschedule, without a secondary check on the
current task->state. This can overwrite the TASK_STATE_DRAINING state
set by a concurrent call to rxe_cleanup_task() or rxe_disable_task().
While state changes are protected by a spinlock, both rxe_cleanup_task()
and rxe_disable_task() release the lock while waiting for the task to
finish draining in the while(!is_done(task)) loop. The race occurs if
do_task() hits its iteration limit and acquires the lock in this window.
The cleanup logic may then proceed while the task incorrectly
reschedules itself, leading to a potential use-after-free.
This bug was introduced during the migration from tasklets to workqueues,
where the special handling for the draining case was lost.
Fix this by restoring the original pre-migration behavior. If the state is
TASK_STATE_DRAINING when iterations are exhausted, set cont to 1 to
force a new loop iteration. This allows the task to finish its work, so
that a subsequent iteration can reach the switch statement and correctly
transition the state to TASK_STATE_DRAINED, stopping the task as intended.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-40080 (GCVE-0-2025-40080)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nbd: restrict sockets to TCP and UDP
Recently, syzbot started to abuse NBD with all kinds of sockets.
Commit cf1b2326b734 ("nbd: verify socket is supported during setup")
made sure the socket supported a shutdown() method.
Explicitely accept TCP and UNIX stream sockets.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: cf1b2326b734896734c6e167e41766f9cee7686a Version: 4df728651b8a99693c69962d8e5a5b9e5a3bbcc7 Version: 083322455c67d278c56a66b73f1221f004ee600a Version: 4fa1cbd587ef967812f9d9f6ce46ec1dead7502c Version: 4.14.152 ≤ Version: 4.19.82 ≤ Version: 5.3.9 ≤ |
||
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CVE-2025-40053 (GCVE-0-2025-40053)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: dlink: handle copy_thresh allocation failure
The driver did not handle failure of `netdev_alloc_skb_ip_align()`.
If the allocation failed, dereferencing `skb->protocol` could lead to
a NULL pointer dereference.
This patch tries to allocate `skb`. If the allocation fails, it falls
back to the normal path.
Tested-on: D-Link DGE-550T Rev-A3
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
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CVE-2025-40081 (GCVE-0-2025-40081)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
perf: arm_spe: Prevent overflow in PERF_IDX2OFF()
Cast nr_pages to unsigned long to avoid overflow when handling large
AUX buffer sizes (>= 2 GiB).
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-40029 (GCVE-0-2025-40029)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bus: fsl-mc: Check return value of platform_get_resource()
platform_get_resource() returns NULL in case of failure, so check its
return value and propagate the error in order to prevent NULL pointer
dereference.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 6305166c8771c33a8d5992fb53f93cfecedc14fd Version: 6305166c8771c33a8d5992fb53f93cfecedc14fd Version: 6305166c8771c33a8d5992fb53f93cfecedc14fd Version: 6305166c8771c33a8d5992fb53f93cfecedc14fd Version: 6305166c8771c33a8d5992fb53f93cfecedc14fd Version: 6305166c8771c33a8d5992fb53f93cfecedc14fd Version: 6305166c8771c33a8d5992fb53f93cfecedc14fd |
||
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CVE-2025-40044 (GCVE-0-2025-40044)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: udf: fix OOB read in lengthAllocDescs handling
When parsing Allocation Extent Descriptor, lengthAllocDescs comes from
on-disk data and must be validated against the block size. Crafted or
corrupted images may set lengthAllocDescs so that the total descriptor
length (sizeof(allocExtDesc) + lengthAllocDescs) exceeds the buffer,
leading udf_update_tag() to call crc_itu_t() on out-of-bounds memory and
trigger a KASAN use-after-free read.
BUG: KASAN: use-after-free in crc_itu_t+0x1d5/0x2b0 lib/crc-itu-t.c:60
Read of size 1 at addr ffff888041e7d000 by task syz-executor317/5309
CPU: 0 UID: 0 PID: 5309 Comm: syz-executor317 Not tainted 6.12.0-rc4-syzkaller-00261-g850925a8133c #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
crc_itu_t+0x1d5/0x2b0 lib/crc-itu-t.c:60
udf_update_tag+0x70/0x6a0 fs/udf/misc.c:261
udf_write_aext+0x4d8/0x7b0 fs/udf/inode.c:2179
extent_trunc+0x2f7/0x4a0 fs/udf/truncate.c:46
udf_truncate_tail_extent+0x527/0x7e0 fs/udf/truncate.c:106
udf_release_file+0xc1/0x120 fs/udf/file.c:185
__fput+0x23f/0x880 fs/file_table.c:431
task_work_run+0x24f/0x310 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:939
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
__do_sys_exit_group kernel/exit.c:1099 [inline]
__se_sys_exit_group kernel/exit.c:1097 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097
x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
</TASK>
Validate the computed total length against epos->bh->b_size.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2025-11840 (GCVE-0-2025-11840)
Vulnerability from cvelistv5
Published
2025-10-16 15:32
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A weakness has been identified in GNU Binutils 2.45. The affected element is the function vfinfo of the file ldmisc.c. Executing a manipulation can lead to out-of-bounds read. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. This patch is called 16357. It is best practice to apply a patch to resolve this issue.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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CVE-2025-40078 (GCVE-0-2025-40078)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-07-14 12:43
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Explicitly check accesses to bpf_sock_addr
Syzkaller found a kernel warning on the following sock_addr program:
0: r0 = 0
1: r2 = *(u32 *)(r1 +60)
2: exit
which triggers:
verifier bug: error during ctx access conversion (0)
This is happening because offset 60 in bpf_sock_addr corresponds to an
implicit padding of 4 bytes, right after msg_src_ip4. Access to this
padding isn't rejected in sock_addr_is_valid_access and it thus later
fails to convert the access.
This patch fixes it by explicitly checking the various fields of
bpf_sock_addr in sock_addr_is_valid_access.
I checked the other ctx structures and is_valid_access functions and
didn't find any other similar cases. Other cases of (properly handled)
padding are covered in new tests in a subsequent patch.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 Version: 1cedee13d25ab118d325f95588c1a084e9317229 |
||
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CVE-2025-40019 (GCVE-0-2025-40019)
Vulnerability from cvelistv5
Published
2025-10-24 11:44
Modified
2026-05-11 21:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: essiv - Check ssize for decryption and in-place encryption
Move the ssize check to the start in essiv_aead_crypt so that
it's also checked for decryption and in-place encryption.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 Version: be1eb7f78aa8fbe34779c56c266ccd0364604e71 |
||
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CVE-2025-40043 (GCVE-0-2025-40043)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: nfc: nci: Add parameter validation for packet data
Syzbot reported an uninitialized value bug in nci_init_req, which was
introduced by commit 5aca7966d2a7 ("Merge tag
'perf-tools-fixes-for-v6.17-2025-09-16' of
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools").
This bug arises due to very limited and poor input validation
that was done at nic_valid_size(). This validation only
validates the skb->len (directly reflects size provided at the
userspace interface) with the length provided in the buffer
itself (interpreted as NCI_HEADER). This leads to the processing
of memory content at the address assuming the correct layout
per what opcode requires there. This leads to the accesses to
buffer of `skb_buff->data` which is not assigned anything yet.
Following the same silent drop of packets of invalid sizes at
`nic_valid_size()`, add validation of the data in the respective
handlers and return error values in case of failure. Release
the skb if error values are returned from handlers in
`nci_nft_packet` and effectively do a silent drop
Possible TODO: because we silently drop the packets, the
call to `nci_request` will be waiting for completion of request
and will face timeouts. These timeouts can get excessively logged
in the dmesg. A proper handling of them may require to export
`nci_request_cancel` (or propagate error handling from the
nft packets handlers).
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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||
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CVE-2025-11839 (GCVE-0-2025-11839)
Vulnerability from cvelistv5
Published
2025-10-16 14:02
Modified
2026-07-14 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A security flaw has been discovered in GNU Binutils 2.45. Impacted is the function tg_tag_type of the file prdbg.c. Performing a manipulation results in unchecked return value. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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CVE-2025-40057 (GCVE-0-2025-40057)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ptp: Add a upper bound on max_vclocks
syzbot reported WARNING in max_vclocks_store.
This occurs when the argument max is too large for kcalloc to handle.
Extend the guard to guard against values that are too large for
kcalloc
References
Impacted products
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CVE-2025-40060 (GCVE-0-2025-40060)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
coresight: trbe: Return NULL pointer for allocation failures
When the TRBE driver fails to allocate a buffer, it currently returns
the error code "-ENOMEM". However, the caller etm_setup_aux() only
checks for a NULL pointer, so it misses the error. As a result, the
driver continues and eventually causes a kernel panic.
Fix this by returning a NULL pointer from arm_trbe_alloc_buffer() on
allocation failures. This allows that the callers can properly handle
the failure.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2025-40051 (GCVE-0-2025-40051)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vhost: vringh: Modify the return value check
The return value of copy_from_iter and copy_to_iter can't be negative,
check whether the copied lengths are equal.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-8677 (GCVE-0-2025-8677)
Vulnerability from cvelistv5
Published
2025-10-22 15:43
Modified
2025-11-04 21:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Summary
Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion.
This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-40052 (GCVE-0-2025-40052)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix crypto buffers in non-linear memory
The crypto API, through the scatterlist API, expects input buffers to be
in linear memory. We handle this with the cifs_sg_set_buf() helper
that converts vmalloc'd memory to their corresponding pages.
However, when we allocate our aead_request buffer (@creq in
smb2ops.c::crypt_message()), we do so with kvzalloc(), which possibly
puts aead_request->__ctx in vmalloc area.
AEAD algorithm then uses ->__ctx for its private/internal data and
operations, and uses sg_set_buf() for such data on a few places.
This works fine as long as @creq falls into kmalloc zone (small
requests) or vmalloc'd memory is still within linear range.
Tasks' stacks are vmalloc'd by default (CONFIG_VMAP_STACK=y), so too
many tasks will increment the base stacks' addresses to a point where
virt_addr_valid(buf) will fail (BUG() in sg_set_buf()) when that
happens.
In practice: too many parallel reads and writes on an encrypted mount
will trigger this bug.
To fix this, always alloc @creq with kmalloc() instead.
Also drop the @sensitive_size variable/arguments since
kfree_sensitive() doesn't need it.
Backtrace:
[ 945.272081] ------------[ cut here ]------------
[ 945.272774] kernel BUG at include/linux/scatterlist.h:209!
[ 945.273520] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI
[ 945.274412] CPU: 7 UID: 0 PID: 56 Comm: kworker/u33:0 Kdump: loaded Not tainted 6.15.0-lku-11779-g8e9d6efccdd7-dirty #1 PREEMPT(voluntary)
[ 945.275736] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-2-gc13ff2cd-prebuilt.qemu.org 04/01/2014
[ 945.276877] Workqueue: writeback wb_workfn (flush-cifs-2)
[ 945.277457] RIP: 0010:crypto_gcm_init_common+0x1f9/0x220
[ 945.278018] Code: b0 00 00 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 c7 c0 00 00 00 80 48 2b 05 5c 58 e5 00 e9 58 ff ff ff <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 0b 48 c7 04 24 01 00 00 00 48 8b
[ 945.279992] RSP: 0018:ffffc90000a27360 EFLAGS: 00010246
[ 945.280578] RAX: 0000000000000000 RBX: ffffc90001d85060 RCX: 0000000000000030
[ 945.281376] RDX: 0000000000080000 RSI: 0000000000000000 RDI: ffffc90081d85070
[ 945.282145] RBP: ffffc90001d85010 R08: ffffc90001d85000 R09: 0000000000000000
[ 945.282898] R10: ffffc90001d85090 R11: 0000000000001000 R12: ffffc90001d85070
[ 945.283656] R13: ffff888113522948 R14: ffffc90001d85060 R15: ffffc90001d85010
[ 945.284407] FS: 0000000000000000(0000) GS:ffff8882e66cf000(0000) knlGS:0000000000000000
[ 945.285262] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 945.285884] CR2: 00007fa7ffdd31f4 CR3: 000000010540d000 CR4: 0000000000350ef0
[ 945.286683] Call Trace:
[ 945.286952] <TASK>
[ 945.287184] ? crypt_message+0x33f/0xad0 [cifs]
[ 945.287719] crypto_gcm_encrypt+0x36/0xe0
[ 945.288152] crypt_message+0x54a/0xad0 [cifs]
[ 945.288724] smb3_init_transform_rq+0x277/0x300 [cifs]
[ 945.289300] smb_send_rqst+0xa3/0x160 [cifs]
[ 945.289944] cifs_call_async+0x178/0x340 [cifs]
[ 945.290514] ? __pfx_smb2_writev_callback+0x10/0x10 [cifs]
[ 945.291177] smb2_async_writev+0x3e3/0x670 [cifs]
[ 945.291759] ? find_held_lock+0x32/0x90
[ 945.292212] ? netfs_advance_write+0xf2/0x310
[ 945.292723] netfs_advance_write+0xf2/0x310
[ 945.293210] netfs_write_folio+0x346/0xcc0
[ 945.293689] ? __pfx__raw_spin_unlock_irq+0x10/0x10
[ 945.294250] netfs_writepages+0x117/0x460
[ 945.294724] do_writepages+0xbe/0x170
[ 945.295152] ? find_held_lock+0x32/0x90
[ 945.295600] ? kvm_sched_clock_read+0x11/0x20
[ 945.296103] __writeback_single_inode+0x56/0x4b0
[ 945.296643] writeback_sb_inodes+0x229/0x550
[ 945.297140] __writeback_inodes_wb+0x4c/0xe0
[ 945.297642] wb_writeback+0x2f1/0x3f0
[ 945.298069] wb_workfn+0x300/0x490
[ 945.298472] process_one_work+0x1fe/0x590
[ 945.298949] worker_thread+0x1ce/0x3c0
[ 945.299397] ? __pfx_worker_thread+0x10/0x10
[ 945.299900] kthr
---truncated---
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-40075 (GCVE-0-2025-40075)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tcp_metrics: use dst_dev_net_rcu()
Replace three dst_dev() with a lockdep enabled helper.
References
Impacted products
{
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"value": "AV:N - The three fixed call sites sit in the core TCP metrics cache, reached from `tcp_conn_request()` on an inbound SYN, from `tcp_finish_connect()`, from the TIME-WAIT/LAST-ACK teardown path, and from TCP Fast Open \u2014 all driven purely by packets from a remote peer. No local access is needed to reach the vulnerable code.\nAC:H - The stale `dst-\u003edev` window only exists while `dst_dev_put()` is concurrently swapping the device to the blackhole netdev during a route removal or NETDEV_DOWN/UNREGISTER event, which a remote attacker cannot induce or time. The attacker controls only the TCP-connection side of the race.\nPR:N - `tcp_peer_is_proven()` is invoked from `tcp_conn_request()` while processing an unauthenticated SYN, before any application-level credentials exist, and the other paths only require establishing or closing a normal TCP connection. No kernel privilege check or capability gate exists anywhere along the path.\nUI:N - The code runs entirely from softirq/socket context on packet receive and connection teardown; no local user or administrator action is required to trigger it.\nS:U - The unprotected dereference and its consequences are confined to the kernel\u0027s own memory and the network stack \u2014 the same security authority. There is no VM, IOMMU, or sandbox boundary crossed.\nC:H - A use-after-free read of a released `struct net_device` yields a `struct net` pointer taken from reclaimed memory, which is then used to compute hashes and index the per-namespace metrics cache; attacker-groomed heap contents can be interpreted as kernel structures, enabling disclosure of kernel memory.\nI:H - The bogus `struct net` derived from the freed device is stored into `tm-\u003etcpm_net` and drives `tcpm_new()`/`tcpm_suck_dst()` writes, so freed or attacker-controlled memory is treated as a live namespace object \u2014 a UAF of this class is leverageable for controlled kernel writes and control-flow hijack.\nA:H - Dereferencing a freed `net_device` through `dev_net_rcu()` and then using the resulting garbage `struct net` pointer for `net_hash_mix()` and cache lookups leads to an oops or panic, taking down the whole system."
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CVE-2025-40079 (GCVE-0-2025-40079)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
riscv, bpf: Sign extend struct ops return values properly
The ns_bpf_qdisc selftest triggers a kernel panic:
Unable to handle kernel paging request at virtual address ffffffffa38dbf58
Current test_progs pgtable: 4K pagesize, 57-bit VAs, pgdp=0x00000001109cc000
[ffffffffa38dbf58] pgd=000000011fffd801, p4d=000000011fffd401, pud=000000011fffd001, pmd=0000000000000000
Oops [#1]
Modules linked in: bpf_testmod(OE) xt_conntrack nls_iso8859_1 [...] [last unloaded: bpf_testmod(OE)]
CPU: 1 UID: 0 PID: 23584 Comm: test_progs Tainted: G W OE 6.17.0-rc1-g2465bb83e0b4 #1 NONE
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2024.01+dfsg-1ubuntu5.1 01/01/2024
epc : __qdisc_run+0x82/0x6f0
ra : __qdisc_run+0x6e/0x6f0
epc : ffffffff80bd5c7a ra : ffffffff80bd5c66 sp : ff2000000eecb550
gp : ffffffff82472098 tp : ff60000096895940 t0 : ffffffff8001f180
t1 : ffffffff801e1664 t2 : 0000000000000000 s0 : ff2000000eecb5d0
s1 : ff60000093a6a600 a0 : ffffffffa38dbee8 a1 : 0000000000000001
a2 : ff2000000eecb510 a3 : 0000000000000001 a4 : 0000000000000000
a5 : 0000000000000010 a6 : 0000000000000000 a7 : 0000000000735049
s2 : ffffffffa38dbee8 s3 : 0000000000000040 s4 : ff6000008bcda000
s5 : 0000000000000008 s6 : ff60000093a6a680 s7 : ff60000093a6a6f0
s8 : ff60000093a6a6ac s9 : ff60000093140000 s10: 0000000000000000
s11: ff2000000eecb9d0 t3 : 0000000000000000 t4 : 0000000000ff0000
t5 : 0000000000000000 t6 : ff60000093a6a8b6
status: 0000000200000120 badaddr: ffffffffa38dbf58 cause: 000000000000000d
[<ffffffff80bd5c7a>] __qdisc_run+0x82/0x6f0
[<ffffffff80b6fe58>] __dev_queue_xmit+0x4c0/0x1128
[<ffffffff80b80ae0>] neigh_resolve_output+0xd0/0x170
[<ffffffff80d2daf6>] ip6_finish_output2+0x226/0x6c8
[<ffffffff80d31254>] ip6_finish_output+0x10c/0x2a0
[<ffffffff80d31446>] ip6_output+0x5e/0x178
[<ffffffff80d2e232>] ip6_xmit+0x29a/0x608
[<ffffffff80d6f4c6>] inet6_csk_xmit+0xe6/0x140
[<ffffffff80c985e4>] __tcp_transmit_skb+0x45c/0xaa8
[<ffffffff80c995fe>] tcp_connect+0x9ce/0xd10
[<ffffffff80d66524>] tcp_v6_connect+0x4ac/0x5e8
[<ffffffff80cc19b8>] __inet_stream_connect+0xd8/0x318
[<ffffffff80cc1c36>] inet_stream_connect+0x3e/0x68
[<ffffffff80b42b20>] __sys_connect_file+0x50/0x88
[<ffffffff80b42bee>] __sys_connect+0x96/0xc8
[<ffffffff80b42c40>] __riscv_sys_connect+0x20/0x30
[<ffffffff80e5bcae>] do_trap_ecall_u+0x256/0x378
[<ffffffff80e69af2>] handle_exception+0x14a/0x156
Code: 892a 0363 1205 489c 8bc1 c7e5 2d03 084a 2703 080a (2783) 0709
---[ end trace 0000000000000000 ]---
The bpf_fifo_dequeue prog returns a skb which is a pointer. The pointer
is treated as a 32bit value and sign extend to 64bit in epilogue. This
behavior is right for most bpf prog types but wrong for struct ops which
requires RISC-V ABI.
So let's sign extend struct ops return values according to the function
model and RISC-V ABI([0]).
[0]: https://riscv.org/wp-content/uploads/2024/12/riscv-calling.pdf
References
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv, bpf: Sign extend struct ops return values properly\n\nThe ns_bpf_qdisc selftest triggers a kernel panic:\n\n Unable to handle kernel paging request at virtual address ffffffffa38dbf58\n Current test_progs pgtable: 4K pagesize, 57-bit VAs, pgdp=0x00000001109cc000\n [ffffffffa38dbf58] pgd=000000011fffd801, p4d=000000011fffd401, pud=000000011fffd001, pmd=0000000000000000\n Oops [#1]\n Modules linked in: bpf_testmod(OE) xt_conntrack nls_iso8859_1 [...] [last unloaded: bpf_testmod(OE)]\n CPU: 1 UID: 0 PID: 23584 Comm: test_progs Tainted: G W OE 6.17.0-rc1-g2465bb83e0b4 #1 NONE\n Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE\n Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2024.01+dfsg-1ubuntu5.1 01/01/2024\n epc : __qdisc_run+0x82/0x6f0\n ra : __qdisc_run+0x6e/0x6f0\n epc : ffffffff80bd5c7a ra : ffffffff80bd5c66 sp : ff2000000eecb550\n gp : ffffffff82472098 tp : ff60000096895940 t0 : ffffffff8001f180\n t1 : ffffffff801e1664 t2 : 0000000000000000 s0 : ff2000000eecb5d0\n s1 : ff60000093a6a600 a0 : ffffffffa38dbee8 a1 : 0000000000000001\n a2 : ff2000000eecb510 a3 : 0000000000000001 a4 : 0000000000000000\n a5 : 0000000000000010 a6 : 0000000000000000 a7 : 0000000000735049\n s2 : ffffffffa38dbee8 s3 : 0000000000000040 s4 : ff6000008bcda000\n s5 : 0000000000000008 s6 : ff60000093a6a680 s7 : ff60000093a6a6f0\n s8 : ff60000093a6a6ac s9 : ff60000093140000 s10: 0000000000000000\n s11: ff2000000eecb9d0 t3 : 0000000000000000 t4 : 0000000000ff0000\n t5 : 0000000000000000 t6 : ff60000093a6a8b6\n status: 0000000200000120 badaddr: ffffffffa38dbf58 cause: 000000000000000d\n [\u003cffffffff80bd5c7a\u003e] __qdisc_run+0x82/0x6f0\n [\u003cffffffff80b6fe58\u003e] __dev_queue_xmit+0x4c0/0x1128\n [\u003cffffffff80b80ae0\u003e] neigh_resolve_output+0xd0/0x170\n [\u003cffffffff80d2daf6\u003e] ip6_finish_output2+0x226/0x6c8\n [\u003cffffffff80d31254\u003e] ip6_finish_output+0x10c/0x2a0\n [\u003cffffffff80d31446\u003e] ip6_output+0x5e/0x178\n [\u003cffffffff80d2e232\u003e] ip6_xmit+0x29a/0x608\n [\u003cffffffff80d6f4c6\u003e] inet6_csk_xmit+0xe6/0x140\n [\u003cffffffff80c985e4\u003e] __tcp_transmit_skb+0x45c/0xaa8\n [\u003cffffffff80c995fe\u003e] tcp_connect+0x9ce/0xd10\n [\u003cffffffff80d66524\u003e] tcp_v6_connect+0x4ac/0x5e8\n [\u003cffffffff80cc19b8\u003e] __inet_stream_connect+0xd8/0x318\n [\u003cffffffff80cc1c36\u003e] inet_stream_connect+0x3e/0x68\n [\u003cffffffff80b42b20\u003e] __sys_connect_file+0x50/0x88\n [\u003cffffffff80b42bee\u003e] __sys_connect+0x96/0xc8\n [\u003cffffffff80b42c40\u003e] __riscv_sys_connect+0x20/0x30\n [\u003cffffffff80e5bcae\u003e] do_trap_ecall_u+0x256/0x378\n [\u003cffffffff80e69af2\u003e] handle_exception+0x14a/0x156\n Code: 892a 0363 1205 489c 8bc1 c7e5 2d03 084a 2703 080a (2783) 0709\n ---[ end trace 0000000000000000 ]---\n\nThe bpf_fifo_dequeue prog returns a skb which is a pointer. The pointer\nis treated as a 32bit value and sign extend to 64bit in epilogue. This\nbehavior is right for most bpf prog types but wrong for struct ops which\nrequires RISC-V ABI.\n\nSo let\u0027s sign extend struct ops return values according to the function\nmodel and RISC-V ABI([0]).\n\n [0]: https://riscv.org/wp-content/uploads/2024/12/riscv-calling.pdf"
}
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CVE-2025-40035 (GCVE-0-2025-40035)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak
Struct ff_effect_compat is embedded twice inside
uinput_ff_upload_compat, contains internal padding. In particular, there
is a hole after struct ff_replay to satisfy alignment requirements for
the following union member. Without clearing the structure,
copy_to_user() may leak stack data to userspace.
Initialize ff_up_compat to zero before filling valid fields.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 Version: 2d56f3a32c0e62f99c043d2579840f9731fe5855 |
||
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CVE-2025-59530 (GCVE-0-2025-59530)
Vulnerability from cvelistv5
Published
2025-10-10 16:09
Modified
2025-10-10 16:31
Severity ?
VLAI Severity ?
EPSS score ?
Summary
quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
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CVE-2025-40048 (GCVE-0-2025-40048)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
uio_hv_generic: Let userspace take care of interrupt mask
Remove the logic to set interrupt mask by default in uio_hv_generic
driver as the interrupt mask value is supposed to be controlled
completely by the user space. If the mask bit gets changed
by the driver, concurrently with user mode operating on the ring,
the mask bit may be set when it is supposed to be clear, and the
user-mode driver will miss an interrupt which will cause a hang.
For eg- when the driver sets inbound ring buffer interrupt mask to 1,
the host does not interrupt the guest on the UIO VMBus channel.
However, setting the mask does not prevent the host from putting a
message in the inbound ring buffer. So let’s assume that happens,
the host puts a message into the ring buffer but does not interrupt.
Subsequently, the user space code in the guest sets the inbound ring
buffer interrupt mask to 0, saying “Hey, I’m ready for interrupts”.
User space code then calls pread() to wait for an interrupt.
Then one of two things happens:
* The host never sends another message. So the pread() waits forever.
* The host does send another message. But because there’s already a
message in the ring buffer, it doesn’t generate an interrupt.
This is the correct behavior, because the host should only send an
interrupt when the inbound ring buffer transitions from empty to
not-empty. Adding an additional message to a ring buffer that is not
empty is not supposed to generate an interrupt on the guest.
Since the guest is waiting in pread() and not removing messages from
the ring buffer, the pread() waits forever.
This could be easily reproduced in hv_fcopy_uio_daemon if we delay
setting interrupt mask to 0.
Similarly if hv_uio_channel_cb() sets the interrupt_mask to 1,
there’s a race condition. Once user space empties the inbound ring
buffer, but before user space sets interrupt_mask to 0, the host could
put another message in the ring buffer but it wouldn’t interrupt.
Then the next pread() would hang.
Fix these by removing all instances where interrupt_mask is changed,
while keeping the one in set_event() unchanged to enable userspace
control the interrupt mask by writing 0/1 to /dev/uioX.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 95096f2fbd10186d3e78a328b327afc71428f65f Version: 95096f2fbd10186d3e78a328b327afc71428f65f Version: 95096f2fbd10186d3e78a328b327afc71428f65f Version: 95096f2fbd10186d3e78a328b327afc71428f65f Version: 95096f2fbd10186d3e78a328b327afc71428f65f Version: 95096f2fbd10186d3e78a328b327afc71428f65f Version: 95096f2fbd10186d3e78a328b327afc71428f65f Version: 95096f2fbd10186d3e78a328b327afc71428f65f |
||
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CVE-2025-40032 (GCVE-0-2025-40032)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release
The fields dma_chan_tx and dma_chan_rx of the struct pci_epf_test can be
NULL even after EPF initialization. Then it is prudent to check that
they have non-NULL values before releasing the channels. Add the checks
in pci_epf_test_clean_dma_chan().
Without the checks, NULL pointer dereferences happen and they can lead
to a kernel panic in some cases:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050
Call trace:
dma_release_channel+0x2c/0x120 (P)
pci_epf_test_epc_deinit+0x94/0xc0 [pci_epf_test]
pci_epc_deinit_notify+0x74/0xc0
tegra_pcie_ep_pex_rst_irq+0x250/0x5d8
irq_thread_fn+0x34/0xb8
irq_thread+0x18c/0x2e8
kthread+0x14c/0x210
ret_from_fork+0x10/0x20
[mani: trimmed the stack trace]
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-40021 (GCVE-0-2025-40021)
Vulnerability from cvelistv5
Published
2025-10-24 12:24
Modified
2026-05-11 21:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tracing: dynevent: Add a missing lockdown check on dynevent
Since dynamic_events interface on tracefs is compatible with
kprobe_events and uprobe_events, it should also check the lockdown
status and reject if it is set.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 Version: 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 Version: 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 Version: 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 Version: 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 Version: 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 Version: 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 |
||
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CVE-2025-40030 (GCVE-0-2025-40030)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
pinctrl: check the return value of pinmux_ops::get_function_name()
While the API contract in docs doesn't specify it explicitly, the
generic implementation of the get_function_name() callback from struct
pinmux_ops - pinmux_generic_get_function_name() - can fail and return
NULL. This is already checked in pinmux_check_ops() so add a similar
check in pinmux_func_name_to_selector() instead of passing the returned
pointer right down to strcmp() where the NULL can get dereferenced. This
is normal operation when adding new pinfunctions.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 Version: f913cfce4ee49a3382a9ff95696f49a46e56e974 |
||
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CVE-2025-40027 (GCVE-0-2025-40027)
Vulnerability from cvelistv5
Published
2025-10-28 09:32
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/9p: fix double req put in p9_fd_cancelled
Syzkaller reports a KASAN issue as below:
general protection fault, probably for non-canonical address 0xfbd59c0000000021: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0xdead000000000108-0xdead00000000010f]
CPU: 0 PID: 5083 Comm: syz-executor.2 Not tainted 6.1.134-syzkaller-00037-g855bd1d7d838 #0
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__list_del include/linux/list.h:114 [inline]
RIP: 0010:__list_del_entry include/linux/list.h:137 [inline]
RIP: 0010:list_del include/linux/list.h:148 [inline]
RIP: 0010:p9_fd_cancelled+0xe9/0x200 net/9p/trans_fd.c:734
Call Trace:
<TASK>
p9_client_flush+0x351/0x440 net/9p/client.c:614
p9_client_rpc+0xb6b/0xc70 net/9p/client.c:734
p9_client_version net/9p/client.c:920 [inline]
p9_client_create+0xb51/0x1240 net/9p/client.c:1027
v9fs_session_init+0x1f0/0x18f0 fs/9p/v9fs.c:408
v9fs_mount+0xba/0xcb0 fs/9p/vfs_super.c:126
legacy_get_tree+0x108/0x220 fs/fs_context.c:632
vfs_get_tree+0x8e/0x300 fs/super.c:1573
do_new_mount fs/namespace.c:3056 [inline]
path_mount+0x6a6/0x1e90 fs/namespace.c:3386
do_mount fs/namespace.c:3399 [inline]
__do_sys_mount fs/namespace.c:3607 [inline]
__se_sys_mount fs/namespace.c:3584 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3584
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
This happens because of a race condition between:
- The 9p client sending an invalid flush request and later cleaning it up;
- The 9p client in p9_read_work() canceled all pending requests.
Thread 1 Thread 2
...
p9_client_create()
...
p9_fd_create()
...
p9_conn_create()
...
// start Thread 2
INIT_WORK(&m->rq, p9_read_work);
p9_read_work()
...
p9_client_rpc()
...
...
p9_conn_cancel()
...
spin_lock(&m->req_lock);
...
p9_fd_cancelled()
...
...
spin_unlock(&m->req_lock);
// status rewrite
p9_client_cb(m->client, req, REQ_STATUS_ERROR)
// first remove
list_del(&req->req_list);
...
spin_lock(&m->req_lock)
...
// second remove
list_del(&req->req_list);
spin_unlock(&m->req_lock)
...
Commit 74d6a5d56629 ("9p/trans_fd: Fix concurrency del of req_list in
p9_fd_cancelled/p9_read_work") fixes a concurrency issue in the 9p filesystem
client where the req_list could be deleted simultaneously by both
p9_read_work and p9_fd_cancelled functions, but for the case where req->status
equals REQ_STATUS_RCVD.
Update the check for req->status in p9_fd_cancelled to skip processing not
just received requests, but anything that is not SENT, as whatever
changed the state from SENT also removed the request from its list.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
[updated the check from status == RECV || status == ERROR to status != SENT]
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 Version: afd8d65411551839b7ab14a539d00075b2793451 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/9p: fix double req put in p9_fd_cancelled\n\nSyzkaller reports a KASAN issue as below:\n\ngeneral protection fault, probably for non-canonical address 0xfbd59c0000000021: 0000 [#1] PREEMPT SMP KASAN NOPTI\nKASAN: maybe wild-memory-access in range [0xdead000000000108-0xdead00000000010f]\nCPU: 0 PID: 5083 Comm: syz-executor.2 Not tainted 6.1.134-syzkaller-00037-g855bd1d7d838 #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\nRIP: 0010:__list_del include/linux/list.h:114 [inline]\nRIP: 0010:__list_del_entry include/linux/list.h:137 [inline]\nRIP: 0010:list_del include/linux/list.h:148 [inline]\nRIP: 0010:p9_fd_cancelled+0xe9/0x200 net/9p/trans_fd.c:734\n\nCall Trace:\n \u003cTASK\u003e\n p9_client_flush+0x351/0x440 net/9p/client.c:614\n p9_client_rpc+0xb6b/0xc70 net/9p/client.c:734\n p9_client_version net/9p/client.c:920 [inline]\n p9_client_create+0xb51/0x1240 net/9p/client.c:1027\n v9fs_session_init+0x1f0/0x18f0 fs/9p/v9fs.c:408\n v9fs_mount+0xba/0xcb0 fs/9p/vfs_super.c:126\n legacy_get_tree+0x108/0x220 fs/fs_context.c:632\n vfs_get_tree+0x8e/0x300 fs/super.c:1573\n do_new_mount fs/namespace.c:3056 [inline]\n path_mount+0x6a6/0x1e90 fs/namespace.c:3386\n do_mount fs/namespace.c:3399 [inline]\n __do_sys_mount fs/namespace.c:3607 [inline]\n __se_sys_mount fs/namespace.c:3584 [inline]\n __x64_sys_mount+0x283/0x300 fs/namespace.c:3584\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nThis happens because of a race condition between:\n\n- The 9p client sending an invalid flush request and later cleaning it up;\n- The 9p client in p9_read_work() canceled all pending requests.\n\n Thread 1 Thread 2\n ...\n p9_client_create()\n ...\n p9_fd_create()\n ...\n p9_conn_create()\n ...\n // start Thread 2\n INIT_WORK(\u0026m-\u003erq, p9_read_work);\n p9_read_work()\n ...\n p9_client_rpc()\n ...\n ...\n p9_conn_cancel()\n ...\n spin_lock(\u0026m-\u003ereq_lock);\n ...\n p9_fd_cancelled()\n ...\n ...\n spin_unlock(\u0026m-\u003ereq_lock);\n // status rewrite\n p9_client_cb(m-\u003eclient, req, REQ_STATUS_ERROR)\n // first remove\n list_del(\u0026req-\u003ereq_list);\n ...\n\n spin_lock(\u0026m-\u003ereq_lock)\n ...\n // second remove\n list_del(\u0026req-\u003ereq_list);\n spin_unlock(\u0026m-\u003ereq_lock)\n ...\n\nCommit 74d6a5d56629 (\"9p/trans_fd: Fix concurrency del of req_list in\np9_fd_cancelled/p9_read_work\") fixes a concurrency issue in the 9p filesystem\nclient where the req_list could be deleted simultaneously by both\np9_read_work and p9_fd_cancelled functions, but for the case where req-\u003estatus\nequals REQ_STATUS_RCVD.\n\nUpdate the check for req-\u003estatus in p9_fd_cancelled to skip processing not\njust received requests, but anything that is not SENT, as whatever\nchanged the state from SENT also removed the request from its list.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.\n\n[updated the check from status == RECV || status == ERROR to status != SENT]"
}
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"cvssV3_1": {
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"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"lang": "en",
"value": "AV:L - The vulnerable path is entered only from `p9_client_flush()`, which runs solely when a local process\u0027s 9p RPC returns `-ERESTARTSYS` from `io_wait_event_killable()` \u2014 i.e. it requires a local task doing filesystem I/O on a 9p mount and receiving a signal. A remote 9p server can trigger `p9_conn_cancel()` but cannot supply the signal half of the race, so no purely network-based trigger exists.\nAC:L - The attacker drives both sides of the race with their own threads: signals to force the `-ERESTARTSYS`/`p9_client_flush()` path, and late replies for already-flushed tags (or, with `trans=fd`, direct writes/hangups on the attacker-owned pipe or socketpair) to force `p9_conn_cancel()` into the window. The window is repeatable at will across many threads and was reached by syzkaller with no special preconditions.\nPR:L - On the common deployments where a 9p mount already exists (QEMU/KVM virtfs shares, WSL2 9p-over-hvsock with `trans=fd`, Crostini, kata containers, 9p network roots), any unprivileged local account with access to the mount can issue RPCs, self-signal to reach `p9_fd_cancelled()`, and provoke `p9_conn_cancel()` \u2014 no capability is checked anywhere on this path.\nUI:N - The attacking process performs every step itself \u2014 open/read on the 9p mount, deliver the fatal signal, and induce the transport error. The pre-existing mount is system configuration, not a victim action taken during the attack.\nS:U - The corruption is confined to the kernel\u0027s own slab (`p9_req_cache` and the fcall buffers) within the same security authority; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The extra `p9_req_put()` frees the `struct p9_req_t` and its `tc`/`rc` buffers while `p9_client_rpc()` still uses them, so `p9_check_errors()` parses a reallocated heap object as a 9p reply \u2014 an attacker who sprays the freed chunk obtains a controlled read of kernel heap contents (pointers, keys, KASLR data).\nI:H - The same premature free yields a double free of a slab object plus a `list_del()` on `req-\u003ereq_list` after the object may be reclaimed, giving an attacker-controlled `next-\u003eprev = prev` write primitive over kernel memory, which is the classic path to control-flow hijack and privilege escalation.\nA:H - Even unweaponized the bug reliably panics the kernel \u2014 the reported syzkaller crash is a general protection fault in `__list_del()` on `LIST_POISON` at `0xdead000000000108`, and the refcount underflow/double free corrupts the SLUB freelist; the attacker can repeat it at will."
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CVE-2025-40064 (GCVE-0-2025-40064)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
smc: Fix use-after-free in __pnet_find_base_ndev().
syzbot reported use-after-free of net_device in __pnet_find_base_ndev(),
which was called during connect(). [0]
smc_pnet_find_ism_resource() fetches sk_dst_get(sk)->dev and passes
down to pnet_find_base_ndev(), where RTNL is held. Then, UAF happened
at __pnet_find_base_ndev() when the dev is first used.
This means dev had already been freed before acquiring RTNL in
pnet_find_base_ndev().
While dev is going away, dst->dev could be swapped with blackhole_netdev,
and the dev's refcnt by dst will be released.
We must hold dev's refcnt before calling smc_pnet_find_ism_resource().
Also, smc_pnet_find_roce_resource() has the same problem.
Let's use __sk_dst_get() and dst_dev_rcu() in the two functions.
[0]:
BUG: KASAN: use-after-free in __pnet_find_base_ndev+0x1b1/0x1c0 net/smc/smc_pnet.c:926
Read of size 1 at addr ffff888036bac33a by task syz.0.3632/18609
CPU: 1 UID: 0 PID: 18609 Comm: syz.0.3632 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
<TASK>
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xca/0x240 mm/kasan/report.c:482
kasan_report+0x118/0x150 mm/kasan/report.c:595
__pnet_find_base_ndev+0x1b1/0x1c0 net/smc/smc_pnet.c:926
pnet_find_base_ndev net/smc/smc_pnet.c:946 [inline]
smc_pnet_find_ism_by_pnetid net/smc/smc_pnet.c:1103 [inline]
smc_pnet_find_ism_resource+0xef/0x390 net/smc/smc_pnet.c:1154
smc_find_ism_device net/smc/af_smc.c:1030 [inline]
smc_find_proposal_devices net/smc/af_smc.c:1115 [inline]
__smc_connect+0x372/0x1890 net/smc/af_smc.c:1545
smc_connect+0x877/0xd90 net/smc/af_smc.c:1715
__sys_connect_file net/socket.c:2086 [inline]
__sys_connect+0x313/0x440 net/socket.c:2105
__do_sys_connect net/socket.c:2111 [inline]
__se_sys_connect net/socket.c:2108 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2108
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f47cbf8eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f47ccdb1038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f47cc1d5fa0 RCX: 00007f47cbf8eba9
RDX: 0000000000000010 RSI: 0000200000000280 RDI: 000000000000000b
RBP: 00007f47cc011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f47cc1d6038 R14: 00007f47cc1d5fa0 R15: 00007ffc512f8aa8
</TASK>
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888036bacd00 pfn:0x36bac
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0001243d08 ffff8880b863fdc0 0000000000000000
raw: ffff888036bacd00 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x446dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_COMP), pid 16741, tgid 16741 (syz-executor), ts 343313197788, free_ts 380670750466
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
prep_new_page mm/page_alloc.c:1859 [inline]
get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858
__alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148
alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:4317
__kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:4348
__do_kmalloc_node mm/slub.c:4364 [inline]
__kvmalloc_node
---truncated---
References
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmc: Fix use-after-free in __pnet_find_base_ndev().\n\nsyzbot reported use-after-free of net_device in __pnet_find_base_ndev(),\nwhich was called during connect(). [0]\n\nsmc_pnet_find_ism_resource() fetches sk_dst_get(sk)-\u003edev and passes\ndown to pnet_find_base_ndev(), where RTNL is held. Then, UAF happened\nat __pnet_find_base_ndev() when the dev is first used.\n\nThis means dev had already been freed before acquiring RTNL in\npnet_find_base_ndev().\n\nWhile dev is going away, dst-\u003edev could be swapped with blackhole_netdev,\nand the dev\u0027s refcnt by dst will be released.\n\nWe must hold dev\u0027s refcnt before calling smc_pnet_find_ism_resource().\n\nAlso, smc_pnet_find_roce_resource() has the same problem.\n\nLet\u0027s use __sk_dst_get() and dst_dev_rcu() in the two functions.\n\n[0]:\nBUG: KASAN: use-after-free in __pnet_find_base_ndev+0x1b1/0x1c0 net/smc/smc_pnet.c:926\nRead of size 1 at addr ffff888036bac33a by task syz.0.3632/18609\n\nCPU: 1 UID: 0 PID: 18609 Comm: syz.0.3632 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xca/0x240 mm/kasan/report.c:482\n kasan_report+0x118/0x150 mm/kasan/report.c:595\n __pnet_find_base_ndev+0x1b1/0x1c0 net/smc/smc_pnet.c:926\n pnet_find_base_ndev net/smc/smc_pnet.c:946 [inline]\n smc_pnet_find_ism_by_pnetid net/smc/smc_pnet.c:1103 [inline]\n smc_pnet_find_ism_resource+0xef/0x390 net/smc/smc_pnet.c:1154\n smc_find_ism_device net/smc/af_smc.c:1030 [inline]\n smc_find_proposal_devices net/smc/af_smc.c:1115 [inline]\n __smc_connect+0x372/0x1890 net/smc/af_smc.c:1545\n smc_connect+0x877/0xd90 net/smc/af_smc.c:1715\n __sys_connect_file net/socket.c:2086 [inline]\n __sys_connect+0x313/0x440 net/socket.c:2105\n __do_sys_connect net/socket.c:2111 [inline]\n __se_sys_connect net/socket.c:2108 [inline]\n __x64_sys_connect+0x7a/0x90 net/socket.c:2108\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f47cbf8eba9\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f47ccdb1038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a\nRAX: ffffffffffffffda RBX: 00007f47cc1d5fa0 RCX: 00007f47cbf8eba9\nRDX: 0000000000000010 RSI: 0000200000000280 RDI: 000000000000000b\nRBP: 00007f47cc011e19 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007f47cc1d6038 R14: 00007f47cc1d5fa0 R15: 00007ffc512f8aa8\n \u003c/TASK\u003e\n\nThe buggy address belongs to the physical page:\npage: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888036bacd00 pfn:0x36bac\nflags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)\nraw: 00fff00000000000 ffffea0001243d08 ffff8880b863fdc0 0000000000000000\nraw: ffff888036bacd00 0000000000000000 00000000ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\npage_owner tracks the page as freed\npage last allocated via order 2, migratetype Unmovable, gfp_mask 0x446dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_COMP), pid 16741, tgid 16741 (syz-executor), ts 343313197788, free_ts 380670750466\n set_page_owner include/linux/page_owner.h:32 [inline]\n post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851\n prep_new_page mm/page_alloc.c:1859 [inline]\n get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858\n __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148\n alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416\n ___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:4317\n __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:4348\n __do_kmalloc_node mm/slub.c:4364 [inline]\n __kvmalloc_node\n---truncated---"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerability is triggered through the connect() syscall on a locally created AF_SMC socket, combined with locally driven netdev teardown (rtnl_dellink) to free the device. Although the same helpers are also reached from the server-side listen path, the freeing side of the race is not remotely controllable, so local access is the realistic delivery vector.\nAC:L - The attacker controls both sides of the race: they create the netdev and route in their own network namespace, initiate the SMC connect that caches the dst, and delete the device concurrently; the reader blocks on rtnl_lock held by the deleting task and dereferences the device immediately after netdev_run_todo() frees it, making the window wide and the trigger reliably repeatable in a loop.\nPR:L - No capability check exists on AF_SMC socket creation and the module autoloads via net-pf-43 for unprivileged users; the netdev create/delete side needs only CAP_NET_ADMIN inside a user+network namespace obtainable with unshare -Urn by any unprivileged local user.\nUI:N - The attacker performs every step \u2014 socket creation, local SMC listener, connect, and device deletion \u2014 with no action required from any other user or administrator.\nS:U - The use-after-free corrupts kernel memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed net_device is read and its adj_list is walked, yielding an attacker-influenceable pointer that is further dereferenced (dev.parent, dev_port, dev_net()-\u003enet_generic()); with a page-level heap spray of the freed kvmalloc allocation this provides an arbitrary-read oriented primitive over kernel memory.\nI:H - Controlling the freed net_device contents lets the attacker steer base_ndev to a crafted address that is then used for mutex_lock(\u0026pnettable-\u003elock) and list traversal, giving a controlled write/corruption primitive suitable for privilege escalation.\nA:H - The use-after-free reliably produces a KASAN-detected invalid access and, on production kernels, wild-pointer dereferences leading to kernel oops or panic, and it can be re-triggered at will."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:07:29.287Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/233927b645cb7a14bb98d23ac72e4c7243a9f0d9"
},
{
"url": "https://git.kernel.org/stable/c/3d3466878afd8d43ec0ca2facfbc7f03e40d0f79"
}
],
"title": "smc: Fix use-after-free in __pnet_find_base_ndev().",
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40064",
"datePublished": "2025-10-28T11:48:35.155Z",
"dateReserved": "2025-04-16T07:20:57.159Z",
"dateUpdated": "2026-08-05T12:07:29.287Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40040 (GCVE-0-2025-40040)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/ksm: fix flag-dropping behavior in ksm_madvise
syzkaller discovered the following crash: (kernel BUG)
[ 44.607039] ------------[ cut here ]------------
[ 44.607422] kernel BUG at mm/userfaultfd.c:2067!
[ 44.608148] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI
[ 44.608814] CPU: 1 UID: 0 PID: 2475 Comm: reproducer Not tainted 6.16.0-rc6 #1 PREEMPT(none)
[ 44.609635] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 44.610695] RIP: 0010:userfaultfd_release_all+0x3a8/0x460
<snip other registers, drop unreliable trace>
[ 44.617726] Call Trace:
[ 44.617926] <TASK>
[ 44.619284] userfaultfd_release+0xef/0x1b0
[ 44.620976] __fput+0x3f9/0xb60
[ 44.621240] fput_close_sync+0x110/0x210
[ 44.622222] __x64_sys_close+0x8f/0x120
[ 44.622530] do_syscall_64+0x5b/0x2f0
[ 44.622840] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 44.623244] RIP: 0033:0x7f365bb3f227
Kernel panics because it detects UFFD inconsistency during
userfaultfd_release_all(). Specifically, a VMA which has a valid pointer
to vma->vm_userfaultfd_ctx, but no UFFD flags in vma->vm_flags.
The inconsistency is caused in ksm_madvise(): when user calls madvise()
with MADV_UNMEARGEABLE on a VMA that is registered for UFFD in MINOR mode,
it accidentally clears all flags stored in the upper 32 bits of
vma->vm_flags.
Assuming x86_64 kernel build, unsigned long is 64-bit and unsigned int and
int are 32-bit wide. This setup causes the following mishap during the &=
~VM_MERGEABLE assignment.
VM_MERGEABLE is a 32-bit constant of type unsigned int, 0x8000'0000.
After ~ is applied, it becomes 0x7fff'ffff unsigned int, which is then
promoted to unsigned long before the & operation. This promotion fills
upper 32 bits with leading 0s, as we're doing unsigned conversion (and
even for a signed conversion, this wouldn't help as the leading bit is 0).
& operation thus ends up AND-ing vm_flags with 0x0000'0000'7fff'ffff
instead of intended 0xffff'ffff'7fff'ffff and hence accidentally clears
the upper 32-bits of its value.
Fix it by changing `VM_MERGEABLE` constant to unsigned long, using the
BIT() macro.
Note: other VM_* flags are not affected: This only happens to the
VM_MERGEABLE flag, as the other VM_* flags are all constants of type int
and after ~ operation, they end up with leading 1 and are thus converted
to unsigned long with leading 1s.
Note 2:
After commit 31defc3b01d9 ("userfaultfd: remove (VM_)BUG_ON()s"), this is
no longer a kernel BUG, but a WARNING at the same place:
[ 45.595973] WARNING: CPU: 1 PID: 2474 at mm/userfaultfd.c:2067
but the root-cause (flag-drop) remains the same.
[akpm@linux-foundation.org: rust bindgen wasn't able to handle BIT(), from Miguel]
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 Version: 63c17fb8e5a46a16e10e82005748837fd11a2024 |
||
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/ksm: fix flag-dropping behavior in ksm_madvise\n\nsyzkaller discovered the following crash: (kernel BUG)\n\n[ 44.607039] ------------[ cut here ]------------\n[ 44.607422] kernel BUG at mm/userfaultfd.c:2067!\n[ 44.608148] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI\n[ 44.608814] CPU: 1 UID: 0 PID: 2475 Comm: reproducer Not tainted 6.16.0-rc6 #1 PREEMPT(none)\n[ 44.609635] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\n[ 44.610695] RIP: 0010:userfaultfd_release_all+0x3a8/0x460\n\n\u003csnip other registers, drop unreliable trace\u003e\n\n[ 44.617726] Call Trace:\n[ 44.617926] \u003cTASK\u003e\n[ 44.619284] userfaultfd_release+0xef/0x1b0\n[ 44.620976] __fput+0x3f9/0xb60\n[ 44.621240] fput_close_sync+0x110/0x210\n[ 44.622222] __x64_sys_close+0x8f/0x120\n[ 44.622530] do_syscall_64+0x5b/0x2f0\n[ 44.622840] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[ 44.623244] RIP: 0033:0x7f365bb3f227\n\nKernel panics because it detects UFFD inconsistency during\nuserfaultfd_release_all(). Specifically, a VMA which has a valid pointer\nto vma-\u003evm_userfaultfd_ctx, but no UFFD flags in vma-\u003evm_flags.\n\nThe inconsistency is caused in ksm_madvise(): when user calls madvise()\nwith MADV_UNMEARGEABLE on a VMA that is registered for UFFD in MINOR mode,\nit accidentally clears all flags stored in the upper 32 bits of\nvma-\u003evm_flags.\n\nAssuming x86_64 kernel build, unsigned long is 64-bit and unsigned int and\nint are 32-bit wide. This setup causes the following mishap during the \u0026=\n~VM_MERGEABLE assignment.\n\nVM_MERGEABLE is a 32-bit constant of type unsigned int, 0x8000\u00270000. \nAfter ~ is applied, it becomes 0x7fff\u0027ffff unsigned int, which is then\npromoted to unsigned long before the \u0026 operation. This promotion fills\nupper 32 bits with leading 0s, as we\u0027re doing unsigned conversion (and\neven for a signed conversion, this wouldn\u0027t help as the leading bit is 0).\n\u0026 operation thus ends up AND-ing vm_flags with 0x0000\u00270000\u00277fff\u0027ffff\ninstead of intended 0xffff\u0027ffff\u00277fff\u0027ffff and hence accidentally clears\nthe upper 32-bits of its value.\n\nFix it by changing `VM_MERGEABLE` constant to unsigned long, using the\nBIT() macro.\n\nNote: other VM_* flags are not affected: This only happens to the\nVM_MERGEABLE flag, as the other VM_* flags are all constants of type int\nand after ~ operation, they end up with leading 1 and are thus converted\nto unsigned long with leading 1s.\n\nNote 2:\nAfter commit 31defc3b01d9 (\"userfaultfd: remove (VM_)BUG_ON()s\"), this is\nno longer a kernel BUG, but a WARNING at the same place:\n\n[ 45.595973] WARNING: CPU: 1 PID: 2474 at mm/userfaultfd.c:2067\n\nbut the root-cause (flag-drop) remains the same.\n\n[akpm@linux-foundation.org: rust bindgen wasn\u0027t able to handle BIT(), from Miguel]"
}
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"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"value": "AV:L - The bug is reached purely through the madvise(2) syscall (MADV_MERGEABLE/MADV_UNMERGEABLE) on the caller\u0027s own address space, with no network or remote component. Local access to the system is required.\nAC:L - The flag drop is a deterministic C integer-promotion defect that triggers on every MADV_UNMERGEABLE call \u2014 no race, no memory-layout grooming, and no conditions outside the attacker\u0027s control. A short single-threaded reproducer (memfd + MAP_PRIVATE + MADV_MERGEABLE + UFFDIO_REGISTER(MINOR) + MADV_UNMERGEABLE + close) works 100% of the time.\nPR:L - Any unprivileged local user can do this: memfd_create() and MAP_PRIVATE need no capability, and userfaultfd(UFFD_USER_MODE_ONLY) is explicitly allowed to unprivileged callers regardless of vm.unprivileged_userfaultfd or CAP_SYS_PTRACE. The mseal/pkey/shadow-stack flag-drop variants need no special facility at all.\nUI:N - The attacking process performs the entire sequence itself via its own syscalls; no other user or administrator has to open a file, mount anything, or take any action.\nS:U - The corrupted state is the attacker\u0027s own VMA flags and the resulting crash or protection loss stays within the kernel and the process\u0027s own address space, without crossing into a hypervisor, IOMMU, or other security authority.\nC:H - Clearing VM_PKEY_BIT0..4 makes vma_pkey() return 0 and drops _PAGE_PKEY_* from the recomputed page protection, silently revoking MPK-based isolation so an untrusted in-process component can read memory it was walled off from; combined with the VM_SEALED drop (allowing mremap of regions the policy pinned) this yields disclosure of memory the kernel was supposed to keep protected.\nI:H - The wipe silently revokes kernel-enforced write protections: VM_SEALED loss is a full mseal(2) bypass (sealed code/GOT regions become mprotect-able and munmap-able), and VM_SHADOW_STACK loss lets userspace write its own CET shadow stack, defeating control-flow integrity and enabling ROP \u2014 memory the kernel guaranteed immutable becomes attacker-writable.\nA:H - Dropping VM_UFFD_MINOR while leaving vma-\u003evm_userfaultfd_ctx set creates the inconsistency that userfaultfd_release_all() asserts on, producing a kernel BUG()/invalid-opcode panic on close() (a WARNING at mm/userfaultfd.c:2067 after 31defc3b01d9, still fatal under panic_on_warn). Any local user can trigger this at will."
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CVE-2025-40071 (GCVE-0-2025-40071)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-23 16:01
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tty: n_gsm: Don't block input queue by waiting MSC
Currently gsm_queue() processes incoming frames and when opening
a DLC channel it calls gsm_dlci_open() which calls gsm_modem_update().
If basic mode is used it calls gsm_modem_upd_via_msc() and it
cannot block the input queue by waiting the response to come
into the same input queue.
Instead allow sending Modem Status Command without waiting for remote
end to respond. Define a new function gsm_modem_send_initial_msc()
for this purpose. As MSC is only valid for basic encoding, it does
not do anything for advanced or when convergence layer type 2 is used.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 48473802506d2d6151f59e0e764932b33b53cb3b Version: 48473802506d2d6151f59e0e764932b33b53cb3b Version: 48473802506d2d6151f59e0e764932b33b53cb3b Version: 48473802506d2d6151f59e0e764932b33b53cb3b Version: 920e849b7d23ced84c9d11e11e2449e34973cfb8 Version: e83b4e1540469babeffcfd44a605cf8a61542598 Version: 5.15.54 ≤ Version: 5.17.6 ≤ |
||
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CVE-2025-40039 (GCVE-0-2025-40039)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: Fix race condition in RPC handle list access
The 'sess->rpc_handle_list' XArray manages RPC handles within a ksmbd
session. Access to this list is intended to be protected by
'sess->rpc_lock' (an rw_semaphore). However, the locking implementation was
flawed, leading to potential race conditions.
In ksmbd_session_rpc_open(), the code incorrectly acquired only a read lock
before calling xa_store() and xa_erase(). Since these operations modify
the XArray structure, a write lock is required to ensure exclusive access
and prevent data corruption from concurrent modifications.
Furthermore, ksmbd_session_rpc_method() accessed the list using xa_load()
without holding any lock at all. This could lead to reading inconsistent
data or a potential use-after-free if an entry is concurrently removed and
the pointer is dereferenced.
Fix these issues by:
1. Using down_write() and up_write() in ksmbd_session_rpc_open()
to ensure exclusive access during XArray modification, and ensuring
the lock is correctly released on error paths.
2. Adding down_read() and up_read() in ksmbd_session_rpc_method()
to safely protect the lookup.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a4348710a7267705b75692dc1a000920481d1d92 Version: b685757c7b08d5073046fb379be965fd6c06aafc Version: b685757c7b08d5073046fb379be965fd6c06aafc Version: b685757c7b08d5073046fb379be965fd6c06aafc Version: b685757c7b08d5073046fb379be965fd6c06aafc Version: 1f485b54d04a920723984062c912174330a05178 Version: 052b41ef2abe274f068e892aee81406f11bd1f3a Version: 5.15.145 ≤ |
||
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"value": "AV:N - The vulnerable code is in ksmbd, the in-kernel SMB server, and is driven entirely by SMB2 requests (CREATE/CLOSE/IOCTL/READ/WRITE/QUERY_INFO) arriving over TCP port 445 from a remote peer. No local access is needed.\nAC:L - The attacker controls both sides of the race: the pipe handle is an attacker-chosen VolatileFileId, and ksmbd_queue_work() executes each SMB2 request on a separate ksmbd-io worker (plus SMB3 multichannel), so concurrent SMB2_CLOSE and SMB2_IOCTL/READ/WRITE requests run in parallel with unlimited retries.\nPR:L - Reaching create_smb2_pipe() requires a session in SMB2_SESSION_VALID state (ksmbd_session_lookup_all() rejects IN_PROGRESS) plus a tree connect to IPC$, i.e. any valid low-privileged SMB account; no administrative rights are needed, and with guest mapping enabled even credentials are unnecessary.\nUI:N - The entire sequence is performed by the attacker\u0027s own SMB client against the server; no action by any local user or administrator is required.\nS:U - The use-after-free corrupts kernel heap state within the same kernel security authority; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The unlocked xa_load() dereferences a kfree()\u0027d struct ksmbd_session_rpc, disclosing reused kernel heap contents as the RPC method flags; a UAF of this kind gives control over freed-object contents and can be leveraged into arbitrary kernel memory disclosure, and the resulting flags can steer the root ksmbd.mountd daemon into SAMR/LSARPC handlers the client never opened.\nI:H - The stale entry-\u003emethod value read from a reused 8-byte slab object is heap-groomable by the attacker and directly selects which privileged RPC method the root-privileged userspace daemon executes with client-supplied payload; use-after-free conditions are generally leverageable into arbitrary-write and control-flow hijack primitives.\nA:H - Dereferencing the freed entry after the slab object or page has been released oopses the ksmbd worker thread, and the unsynchronized RPC handle teardown corrupts session state, yielding a repeatable remote kernel crash / denial of service."
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CVE-2025-40065 (GCVE-0-2025-40065)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RISC-V: KVM: Write hgatp register with valid mode bits
According to the RISC-V Privileged Architecture Spec, when MODE=Bare
is selected,software must write zero to the remaining fields of hgatp.
We have detected the valid mode supported by the HW before, So using a
valid mode to detect how many vmid bits are supported.
References
Impacted products
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CVE-2025-40055 (GCVE-0-2025-40055)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix double free in user_cluster_connect()
user_cluster_disconnect() frees "conn->cc_private" which is "lc" but then
the error handling frees "lc" a second time. Set "lc" to NULL on this
path to avoid a double free.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 Version: c994c2ebdbbc391a42f177c8eb7882ebf3f142d8 |
||
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CVE-2025-40074 (GCVE-0-2025-40074)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-27 12:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv4: start using dst_dev_rcu()
Change icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF.
Change ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(),
ipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().
References
Impacted products
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CVE-2025-40024 (GCVE-0-2025-40024)
Vulnerability from cvelistv5
Published
2025-10-24 12:24
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vhost: Take a reference on the task in struct vhost_task.
vhost_task_create() creates a task and keeps a reference to its
task_struct. That task may exit early via a signal and its task_struct
will be released.
A pending vhost_task_wake() will then attempt to wake the task and
access a task_struct which is no longer there.
Acquire a reference on the task_struct while creating the thread and
release the reference while the struct vhost_task itself is removed.
If the task exits early due to a signal, then the vhost_task_wake() will
still access a valid task_struct. The wake is safe and will be skipped
in this case.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-40068 (GCVE-0-2025-40068)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: ntfs3: Fix integer overflow in run_unpack()
The MFT record relative to the file being opened contains its runlist,
an array containing information about the file's location on the physical
disk. Analysis of all Call Stack paths showed that the values of the
runlist array, from which LCNs are calculated, are not validated before
run_unpack function.
The run_unpack function decodes the compressed runlist data format
from MFT attributes (for example, $DATA), converting them into a runs_tree
structure, which describes the mapping of virtual clusters (VCN) to
logical clusters (LCN). The NTFS3 subsystem also has a shortcut for
deleting files from MFT records - in this case, the RUN_DEALLOCATE
command is sent to the run_unpack input, and the function logic
provides that all data transferred to the runlist about file or
directory is deleted without creating a runs_tree structure.
Substituting the runlist in the $DATA attribute of the MFT record for an
arbitrary file can lead either to access to arbitrary data on the disk
bypassing access checks to them (since the inode access check
occurs above) or to destruction of arbitrary data on the disk.
Add overflow check for addition operation.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5 Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5 Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5 Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5 Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5 Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5 |
||
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CVE-2025-40056 (GCVE-0-2025-40056)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-05-11 21:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vhost: vringh: Fix copy_to_iter return value check
The return value of copy_to_iter can't be negative, check whether the
copied length is equal to the requested length instead of checking for
negative values.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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},
{
"url": "https://git.kernel.org/stable/c/68aac2b335d474b938d154b9c95cbc58838cb2ce"
},
{
"url": "https://git.kernel.org/stable/c/439263376c2c4e126cac0d07e4987568de4eaba5"
}
],
"title": "vhost: vringh: Fix copy_to_iter return value check",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40056",
"datePublished": "2025-10-28T11:48:30.249Z",
"dateReserved": "2025-04-16T07:20:57.158Z",
"dateUpdated": "2026-05-11T21:41:37.648Z",
"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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