Action not permitted
Modal body text goes here.
Modal Title
Modal Body
CERTFR-2025-AVI-1048
Vulnerability from certfr_avis - Published: 2025-11-28 - Updated: 2025-11-28
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian LTS. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Debian LTS bullseye versions ant\u00e9rieures \u00e0 6.1.158-1~deb11u1",
"product": {
"name": "Debian",
"vendor": {
"name": "Debian",
"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-2025-39987",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39987"
},
{
"name": "CVE-2025-21861",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21861"
},
{
"name": "CVE-2025-40156",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40156"
},
{
"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-2025-40008",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40008"
},
{
"name": "CVE-2025-40048",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40048"
},
{
"name": "CVE-2025-40043",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40043"
},
{
"name": "CVE-2025-39973",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39973"
},
{
"name": "CVE-2025-39943",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39943"
},
{
"name": "CVE-2025-39945",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39945"
},
{
"name": "CVE-2025-40100",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40100"
},
{
"name": "CVE-2025-40019",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40019"
},
{
"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-2025-40153",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40153"
},
{
"name": "CVE-2025-40103",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40103"
},
{
"name": "CVE-2025-40121",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40121"
},
{
"name": "CVE-2025-40204",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40204"
},
{
"name": "CVE-2025-40171",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40171"
},
{
"name": "CVE-2025-40056",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40056"
},
{
"name": "CVE-2025-40125",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40125"
},
{
"name": "CVE-2025-40187",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40187"
},
{
"name": "CVE-2025-40092",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40092"
},
{
"name": "CVE-2025-39967",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39967"
},
{
"name": "CVE-2025-40107",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40107"
},
{
"name": "CVE-2025-40115",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40115"
},
{
"name": "CVE-2025-40198",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40198"
},
{
"name": "CVE-2025-39942",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39942"
},
{
"name": "CVE-2025-39929",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39929"
},
{
"name": "CVE-2025-39949",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39949"
},
{
"name": "CVE-2025-40173",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40173"
},
{
"name": "CVE-2025-40190",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40190"
},
{
"name": "CVE-2025-40010",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40010"
},
{
"name": "CVE-2025-39944",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39944"
},
{
"name": "CVE-2025-40202",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40202"
},
{
"name": "CVE-2025-39953",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39953"
},
{
"name": "CVE-2025-40167",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40167"
},
{
"name": "CVE-2025-39969",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39969"
},
{
"name": "CVE-2025-40194",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40194"
},
{
"name": "CVE-2025-40104",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40104"
},
{
"name": "CVE-2025-40001",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40001"
},
{
"name": "CVE-2025-40035",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40035"
},
{
"name": "CVE-2025-39988",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39988"
},
{
"name": "CVE-2025-40020",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40020"
},
{
"name": "CVE-2025-40188",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40188"
},
{
"name": "CVE-2025-40186",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40186"
},
{
"name": "CVE-2025-40013",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40013"
},
{
"name": "CVE-2025-40049",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40049"
},
{
"name": "CVE-2025-40070",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40070"
},
{
"name": "CVE-2025-40106",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40106"
},
{
"name": "CVE-2025-40205",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40205"
},
{
"name": "CVE-2025-39977",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39977"
},
{
"name": "CVE-2025-40027",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40027"
},
{
"name": "CVE-2025-39970",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39970"
},
{
"name": "CVE-2025-40032",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40032"
},
{
"name": "CVE-2025-39994",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39994"
},
{
"name": "CVE-2025-40088",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40088"
},
{
"name": "CVE-2025-40062",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40062"
},
{
"name": "CVE-2025-40197",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40197"
},
{
"name": "CVE-2025-40109",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40109"
},
{
"name": "CVE-2025-40006",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40006"
},
{
"name": "CVE-2025-40011",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40011"
},
{
"name": "CVE-2025-40085",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40085"
},
{
"name": "CVE-2025-40176",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40176"
},
{
"name": "CVE-2025-40193",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40193"
},
{
"name": "CVE-2025-40201",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40201"
},
{
"name": "CVE-2025-40084",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40084"
},
{
"name": "CVE-2025-40183",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40183"
},
{
"name": "CVE-2025-39998",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39998"
},
{
"name": "CVE-2025-40134",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40134"
},
{
"name": "CVE-2025-39968",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39968"
},
{
"name": "CVE-2025-39986",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39986"
},
{
"name": "CVE-2025-39955",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39955"
},
{
"name": "CVE-2025-40078",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40078"
},
{
"name": "CVE-2025-40116",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40116"
},
{
"name": "CVE-2025-39934",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39934"
},
{
"name": "CVE-2025-39978",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39978"
},
{
"name": "CVE-2025-40179",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40179"
},
{
"name": "CVE-2025-40127",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40127"
},
{
"name": "CVE-2025-39996",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39996"
},
{
"name": "CVE-2025-40053",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40053"
},
{
"name": "CVE-2025-39951",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39951"
},
{
"name": "CVE-2025-40120",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40120"
},
{
"name": "CVE-2025-39938",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39938"
},
{
"name": "CVE-2025-39982",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39982"
},
{
"name": "CVE-2025-40040",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40040"
},
{
"name": "CVE-2025-40207",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40207"
},
{
"name": "CVE-2025-40095",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40095"
},
{
"name": "CVE-2025-40118",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40118"
},
{
"name": "CVE-2025-40021",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40021"
},
{
"name": "CVE-2025-39964",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39964"
},
{
"name": "CVE-2025-39993",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39993"
},
{
"name": "CVE-2025-40044",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40044"
},
{
"name": "CVE-2025-40105",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40105"
},
{
"name": "CVE-2025-40112",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40112"
},
{
"name": "CVE-2025-39971",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39971"
},
{
"name": "CVE-2025-40154",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40154"
},
{
"name": "CVE-2025-40093",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40093"
},
{
"name": "CVE-2025-40099",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40099"
},
{
"name": "CVE-2025-40126",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40126"
},
{
"name": "CVE-2025-39972",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39972"
},
{
"name": "CVE-2025-40018",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40018"
},
{
"name": "CVE-2025-40200",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40200"
},
{
"name": "CVE-2025-40124",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40124"
},
{
"name": "CVE-2025-40094",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40094"
},
{
"name": "CVE-2025-40080",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40080"
},
{
"name": "CVE-2025-40111",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40111"
},
{
"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-2025-39957",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39957"
},
{
"name": "CVE-2025-39931",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39931"
},
{
"name": "CVE-2025-39937",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39937"
},
{
"name": "CVE-2025-40060",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40060"
},
{
"name": "CVE-2025-40123",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40123"
},
{
"name": "CVE-2025-40178",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40178"
},
{
"name": "CVE-2025-39985",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39985"
},
{
"name": "CVE-2025-40141",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40141"
},
{
"name": "CVE-2025-39946",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39946"
},
{
"name": "CVE-2025-39980",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39980"
},
{
"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-2025-39995",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39995"
},
{
"name": "CVE-2025-40096",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40096"
},
{
"name": "CVE-2025-40022",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40022"
},
{
"name": "CVE-2025-40140",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40140"
},
{
"name": "CVE-2025-40051",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40051"
},
{
"name": "CVE-2025-40087",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40087"
}
],
"initial_release_date": "2025-11-28T00:00:00",
"last_revision_date": "2025-11-28T00:00:00",
"links": [],
"reference": "CERTFR-2025-AVI-1048",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-11-28T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux de Debian LTS. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Debian LTS",
"vendor_advisories": [
{
"published_at": "2025-11-25",
"title": "Bulletin de s\u00e9curit\u00e9 Debian LTS DLA-4379-1",
"url": "https://lists.debian.org/debian-lts-announce/2025/11/msg00022.html"
}
]
}
CVE-2025-40197 (GCVE-0-2025-40197)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-05-23 16:01
VLAI
EPSS
VEX
Title
media: mc: Clear minor number before put device
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: mc: Clear minor number before put device
The device minor should not be cleared after the device is released.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dd156f44ea82cc249f46c519eed3b2f8983c8002
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 64dbc6f50ce92b7da203b1bcdd96a370bbc9b74d (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5d327391f9fafeb0938be4fc538dd0bd54a0b2ef (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8f52c7f38f0f2ee2afc331e6b873acba5e9490a8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7bd4e5367d0940ccec4d7546bb6bd019ab2c71aa (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7db47e737128b3585ae679b709b85f3f44cd8750 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ac01416d477c2dc6016782635ae022f8cc634a29 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8cfc8cec1b4da88a47c243a11f384baefd092a50 (git) Affected: 0 , < 5.4.301 (semver) Affected: 0 , < 5.10.246 (semver) Affected: 0 , < 5.15.195 (semver) Affected: 0 , < 6.1.157 (semver) Affected: 0 , < 6.6.113 (semver) Affected: 0 , < 6.12.54 (semver) Affected: 0 , < 6.17.4 (semver) |
|
| Linux | Linux |
Unaffected:
5.4.301 , ≤ 5.4.*
(semver)
Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/media/mc/mc-devnode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "dd156f44ea82cc249f46c519eed3b2f8983c8002",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "64dbc6f50ce92b7da203b1bcdd96a370bbc9b74d",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "5d327391f9fafeb0938be4fc538dd0bd54a0b2ef",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "8f52c7f38f0f2ee2afc331e6b873acba5e9490a8",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "7bd4e5367d0940ccec4d7546bb6bd019ab2c71aa",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "7db47e737128b3585ae679b709b85f3f44cd8750",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "ac01416d477c2dc6016782635ae022f8cc634a29",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "8cfc8cec1b4da88a47c243a11f384baefd092a50",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "5.4.301",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "5.10.246",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "5.15.195",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.1.157",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.6.113",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.12.54",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.17.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/media/mc/mc-devnode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.301",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.246",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.195",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.301",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.246",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.195",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.157",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.113",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mc: Clear minor number before put device\n\nThe device minor should not be cleared after the device is released."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T16:01:38.372Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/dd156f44ea82cc249f46c519eed3b2f8983c8002"
},
{
"url": "https://git.kernel.org/stable/c/64dbc6f50ce92b7da203b1bcdd96a370bbc9b74d"
},
{
"url": "https://git.kernel.org/stable/c/5d327391f9fafeb0938be4fc538dd0bd54a0b2ef"
},
{
"url": "https://git.kernel.org/stable/c/8f52c7f38f0f2ee2afc331e6b873acba5e9490a8"
},
{
"url": "https://git.kernel.org/stable/c/7bd4e5367d0940ccec4d7546bb6bd019ab2c71aa"
},
{
"url": "https://git.kernel.org/stable/c/7db47e737128b3585ae679b709b85f3f44cd8750"
},
{
"url": "https://git.kernel.org/stable/c/ac01416d477c2dc6016782635ae022f8cc634a29"
},
{
"url": "https://git.kernel.org/stable/c/8cfc8cec1b4da88a47c243a11f384baefd092a50"
}
],
"title": "media: mc: Clear minor number before put device",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40197",
"datePublished": "2025-11-12T21:56:32.852Z",
"dateReserved": "2025-04-16T07:20:57.178Z",
"dateUpdated": "2026-05-23T16:01:38.372Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40198 (GCVE-0-2025-40198)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-10-15 22:02
VLAI
EPSS
VEX
Title
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
Unlike other strings in the ext4 superblock, we rely on tune2fs to
make sure s_mount_opts is NUL terminated. Harden
parse_apply_sb_mount_options() by treating s_mount_opts as a potential
__nonstring.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:57 UTC
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 7bf46ff83a0ef11836e38ebd72cdc5107209342d
(git)
Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < b2bac84fde28fb6a88817b8b761abda17a1d300b (git) Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < e651294218d2684302ee5ed95ccf381646f3e5b4 (git) Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 01829af7656b56d83682b3491265d583d502e502 (git) Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 2a0cf438320cdb783e0378570744c0ef0d83e934 (git) Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < a6e94557cd05adc82fae0400f6e17745563e5412 (git) Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8 (git) |
|
| Linux | Linux |
Affected:
2.6.36
Unaffected: 0 , < 2.6.36 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 6.1.158 , ≤ 6.1.* (semver) Unaffected: 6.6.114 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-40198",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T21:57:54.146489Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T22:02:40.274Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/ext4/super.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7bf46ff83a0ef11836e38ebd72cdc5107209342d",
"status": "affected",
"version": "8b67f04ab9de5d8f3a71aef72bf02c995a506db5",
"versionType": "git"
},
{
"lessThan": "b2bac84fde28fb6a88817b8b761abda17a1d300b",
"status": "affected",
"version": "8b67f04ab9de5d8f3a71aef72bf02c995a506db5",
"versionType": "git"
},
{
"lessThan": "e651294218d2684302ee5ed95ccf381646f3e5b4",
"status": "affected",
"version": "8b67f04ab9de5d8f3a71aef72bf02c995a506db5",
"versionType": "git"
},
{
"lessThan": "01829af7656b56d83682b3491265d583d502e502",
"status": "affected",
"version": "8b67f04ab9de5d8f3a71aef72bf02c995a506db5",
"versionType": "git"
},
{
"lessThan": "2a0cf438320cdb783e0378570744c0ef0d83e934",
"status": "affected",
"version": "8b67f04ab9de5d8f3a71aef72bf02c995a506db5",
"versionType": "git"
},
{
"lessThan": "a6e94557cd05adc82fae0400f6e17745563e5412",
"status": "affected",
"version": "8b67f04ab9de5d8f3a71aef72bf02c995a506db5",
"versionType": "git"
},
{
"lessThan": "8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8",
"status": "affected",
"version": "8b67f04ab9de5d8f3a71aef72bf02c995a506db5",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/ext4/super.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.36"
},
{
"lessThan": "2.6.36",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.301",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.246",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.158",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.114",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.301",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.246",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.158",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.114",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "2.6.36",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid potential buffer over-read in parse_apply_sb_mount_options()\n\nUnlike other strings in the ext4 superblock, we rely on tune2fs to\nmake sure s_mount_opts is NUL terminated. Harden\nparse_apply_sb_mount_options() by treating s_mount_opts as a potential\n__nonstring."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable code is reached only through `__ext4_fill_super()` during the `mount(2)` syscall path, requiring local access to attach the crafted ext4 image (loop device, disk file, or removable media). There is no network-facing path to `parse_apply_sb_mount_options()`.\nAC:L - The attacker fully controls the on-disk superblock and merely has to fill all 64 bytes of `s_mount_opts` with non-NUL data to defeat the termination assumption; no race, no timing, no memory-layout condition outside the attacker\u0027s control.\nPR:N - The attacker needs no account or privilege on the target system \u2014 they only supply the malicious filesystem image (USB stick, disk file, virtual disk), and the privileged mount is performed by the victim or by an automounter such as udisks2 on desktops and kiosks.\nUI:R - A user or automounter must actually mount the attacker-supplied ext4 filesystem, since `ext4_fs_type` lacks `FS_USERNS_MOUNT` and the code path runs only at `ext4_fill_super()` time.\nS:U - The over-read and its consequences are confined to the kernel\u0027s own memory and the mounting host\u0027s security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - An unterminated `s_mount_opts` causes reads past the 64-byte field into adjacent superblock-buffer and page memory, and on parse failure `ext4_msg()` prints the resulting string verbatim into the kernel log, disclosing out-of-bounds kernel memory; the read is not bounded to a few bytes.\nI:H - The over-read bytes are handed to `parse_options()` and `ext4_apply_options()`, so uncontrolled out-of-bounds kernel memory determines mount state such as journal mode, error behavior, and quota file names on the newly mounted filesystem.\nA:H - With a 1024-byte block buffer at the end of a page, the over-read can walk into unmapped memory and oops the kernel, and on KASAN/hardened builds the out-of-bounds access panics the system."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:08:27.771Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d"
},
{
"url": "https://git.kernel.org/stable/c/b2bac84fde28fb6a88817b8b761abda17a1d300b"
},
{
"url": "https://git.kernel.org/stable/c/e651294218d2684302ee5ed95ccf381646f3e5b4"
},
{
"url": "https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502"
},
{
"url": "https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934"
},
{
"url": "https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412"
},
{
"url": "https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8"
}
],
"title": "ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40198",
"datePublished": "2025-11-12T21:56:33.220Z",
"dateReserved": "2025-04-16T07:20:57.178Z",
"dateUpdated": "2026-10-15T22:02:40.274Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40200 (GCVE-0-2025-40200)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-05-11 21:44
VLAI
EPSS
VEX
Title
Squashfs: reject negative file sizes in squashfs_read_inode()
Summary
In the Linux kernel, the following vulnerability has been resolved:
Squashfs: reject negative file sizes in squashfs_read_inode()
Syskaller reports a "WARNING in ovl_copy_up_file" in overlayfs.
This warning is ultimately caused because the underlying Squashfs file
system returns a file with a negative file size.
This commit checks for a negative file size and returns EINVAL.
[phillip@squashfs.org.uk: only need to check 64 bit quantity]
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
6545b246a2c815a8fcd07d58240effb6ec3481b1 , < 54170057a5fadd24a37b70de41e61d39284d9bd7
(git)
Affected: 6545b246a2c815a8fcd07d58240effb6ec3481b1 , < 2871c74caa3f4f05b429e6bfefebac62dbf1b408 (git) Affected: 6545b246a2c815a8fcd07d58240effb6ec3481b1 , < fbfc745db628de31f5c089147deeb87e95b89e66 (git) Affected: 6545b246a2c815a8fcd07d58240effb6ec3481b1 , < 8118f66124895829443d09c207e654adcb2f9321 (git) Affected: 6545b246a2c815a8fcd07d58240effb6ec3481b1 , < 8c7aad76751816207fee556d44aa88a710824810 (git) Affected: 6545b246a2c815a8fcd07d58240effb6ec3481b1 , < 875fb3f87ae0225b881319ba016a1a8c4ffd5812 (git) Affected: 6545b246a2c815a8fcd07d58240effb6ec3481b1 , < f271155ff31aca8ef82c61c8df23ca97e9a77dd4 (git) Affected: 6545b246a2c815a8fcd07d58240effb6ec3481b1 , < 9f1c14c1de1bdde395f6cc893efa4f80a2ae3b2b (git) |
|
| Linux | Linux |
Affected:
2.6.29
Unaffected: 0 , < 2.6.29 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/squashfs/inode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "54170057a5fadd24a37b70de41e61d39284d9bd7",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
},
{
"lessThan": "2871c74caa3f4f05b429e6bfefebac62dbf1b408",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
},
{
"lessThan": "fbfc745db628de31f5c089147deeb87e95b89e66",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
},
{
"lessThan": "8118f66124895829443d09c207e654adcb2f9321",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
},
{
"lessThan": "8c7aad76751816207fee556d44aa88a710824810",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
},
{
"lessThan": "875fb3f87ae0225b881319ba016a1a8c4ffd5812",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
},
{
"lessThan": "f271155ff31aca8ef82c61c8df23ca97e9a77dd4",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
},
{
"lessThan": "9f1c14c1de1bdde395f6cc893efa4f80a2ae3b2b",
"status": "affected",
"version": "6545b246a2c815a8fcd07d58240effb6ec3481b1",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/squashfs/inode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.29"
},
{
"lessThan": "2.6.29",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.301",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.246",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.195",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.301",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.246",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.195",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.157",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.113",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "2.6.29",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSquashfs: reject negative file sizes in squashfs_read_inode()\n\nSyskaller reports a \"WARNING in ovl_copy_up_file\" in overlayfs.\n\nThis warning is ultimately caused because the underlying Squashfs file\nsystem returns a file with a negative file size.\n\nThis commit checks for a negative file size and returns EINVAL.\n\n[phillip@squashfs.org.uk: only need to check 64 bit quantity]"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:44:41.773Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/54170057a5fadd24a37b70de41e61d39284d9bd7"
},
{
"url": "https://git.kernel.org/stable/c/2871c74caa3f4f05b429e6bfefebac62dbf1b408"
},
{
"url": "https://git.kernel.org/stable/c/fbfc745db628de31f5c089147deeb87e95b89e66"
},
{
"url": "https://git.kernel.org/stable/c/8118f66124895829443d09c207e654adcb2f9321"
},
{
"url": "https://git.kernel.org/stable/c/8c7aad76751816207fee556d44aa88a710824810"
},
{
"url": "https://git.kernel.org/stable/c/875fb3f87ae0225b881319ba016a1a8c4ffd5812"
},
{
"url": "https://git.kernel.org/stable/c/f271155ff31aca8ef82c61c8df23ca97e9a77dd4"
},
{
"url": "https://git.kernel.org/stable/c/9f1c14c1de1bdde395f6cc893efa4f80a2ae3b2b"
}
],
"title": "Squashfs: reject negative file sizes in squashfs_read_inode()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40200",
"datePublished": "2025-11-12T21:56:33.783Z",
"dateReserved": "2025-04-16T07:20:57.178Z",
"dateUpdated": "2026-05-11T21:44:41.773Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40201 (GCVE-0-2025-40201)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-10-15 22:02
VLAI
EPSS
VEX
Title
kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths
Summary
In the Linux kernel, the following vulnerability has been resolved:
kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths
The usage of task_lock(tsk->group_leader) in sys_prlimit64()->do_prlimit()
path is very broken.
sys_prlimit64() does get_task_struct(tsk) but this only protects task_struct
itself. If tsk != current and tsk is not a leader, this process can exit/exec
and task_lock(tsk->group_leader) may use the already freed task_struct.
Another problem is that sys_prlimit64() can race with mt-exec which changes
->group_leader. In this case do_prlimit() may take the wrong lock, or (worse)
->group_leader may change between task_lock() and task_unlock().
Change sys_prlimit64() to take tasklist_lock when necessary. This is not
nice, but I don't see a better fix for -stable.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:58 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
18c91bb2d87268d23868bf13508f5bc9cf04e89a , < 1bc0d9315ef5296abb2c9fd840336255850ded18
(git)
Affected: 18c91bb2d87268d23868bf13508f5bc9cf04e89a , < 132f827e7bac7373e1522e89709d70b43cae5342 (git) Affected: 18c91bb2d87268d23868bf13508f5bc9cf04e89a , < 19b45c84bd9fd42fa97ff80c6350d604cb871c75 (git) Affected: 18c91bb2d87268d23868bf13508f5bc9cf04e89a , < 6796412decd2d8de8ec708213bbc958fab72f143 (git) Affected: 18c91bb2d87268d23868bf13508f5bc9cf04e89a , < a15f37a40145c986cdf289a4b88390f35efdecc4 (git) |
|
| Linux | Linux |
Affected:
5.18
Unaffected: 0 , < 5.18 (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-40201",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T21:58:02.275858Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T22:02:40.564Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/sys.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "1bc0d9315ef5296abb2c9fd840336255850ded18",
"status": "affected",
"version": "18c91bb2d87268d23868bf13508f5bc9cf04e89a",
"versionType": "git"
},
{
"lessThan": "132f827e7bac7373e1522e89709d70b43cae5342",
"status": "affected",
"version": "18c91bb2d87268d23868bf13508f5bc9cf04e89a",
"versionType": "git"
},
{
"lessThan": "19b45c84bd9fd42fa97ff80c6350d604cb871c75",
"status": "affected",
"version": "18c91bb2d87268d23868bf13508f5bc9cf04e89a",
"versionType": "git"
},
{
"lessThan": "6796412decd2d8de8ec708213bbc958fab72f143",
"status": "affected",
"version": "18c91bb2d87268d23868bf13508f5bc9cf04e89a",
"versionType": "git"
},
{
"lessThan": "a15f37a40145c986cdf289a4b88390f35efdecc4",
"status": "affected",
"version": "18c91bb2d87268d23868bf13508f5bc9cf04e89a",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/sys.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.18"
},
{
"lessThan": "5.18",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.157",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.113",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "5.18",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkernel/sys.c: fix the racy usage of task_lock(tsk-\u003egroup_leader) in sys_prlimit64() paths\n\nThe usage of task_lock(tsk-\u003egroup_leader) in sys_prlimit64()-\u003edo_prlimit()\npath is very broken.\n\nsys_prlimit64() does get_task_struct(tsk) but this only protects task_struct\nitself. If tsk != current and tsk is not a leader, this process can exit/exec\nand task_lock(tsk-\u003egroup_leader) may use the already freed task_struct.\n\nAnother problem is that sys_prlimit64() can race with mt-exec which changes\n-\u003egroup_leader. In this case do_prlimit() may take the wrong lock, or (worse)\n-\u003egroup_leader may change between task_lock() and task_unlock().\n\nChange sys_prlimit64() to take tasklist_lock when necessary. This is not\nnice, but I don\u0027t see a better fix for -stable."
}
],
"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 reached through the `prlimit64()` syscall (and pid-targeted setrlimit paths) from a local process; no network or physical vector is involved.\nAC:L - The attacker drives both sides of the race using their own processes \u2014 one loop calling prlimit64() on a non-leader TID while a co-operating multithreaded process repeatedly performs mt-exec or group-exit-and-reap \u2014 and can retry indefinitely until the window is hit.\nPR:L - check_prlimit_permission() grants access on a plain uid/gid match, so any unprivileged local user can target a non-leader thread of a process they own; no CAP_SYS_RESOURCE or root is required, and it works unrestricted inside containers.\nUI:N - The attacker creates the victim threads, the exec/exit, and the racing syscall entirely on their own; no action by any other user is needed.\nS:U - The corruption and its consequences stay within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Use-after-free on a task_struct: update_rlimit_cpu() dereferences the freed leader\u0027s -\u003esighand/-\u003esignal, and an attacker who reallocates the slot via fork() spraying can leverage the dangling-pointer reads for kernel memory disclosure.\nI:H - The UAF gives write primitives \u2014 spin_lock/spin_unlock words written into freed memory plus an attacker-supplied RLIMIT_CPU value written through a dangling sighand/signal pointer \u2014 sufficient to corrupt a reallocated live task_struct and pursue control-flow hijack.\nA:H - The mismatched task_lock()/task_unlock() across a de_thread() leaves a task\u0027s alloc_lock permanently held, deadlocking every subsequent task_lock() user (/proc readers, exec, fs_struct access), and the UAF itself readily oopses/panics the kernel."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:08:29.919Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1bc0d9315ef5296abb2c9fd840336255850ded18"
},
{
"url": "https://git.kernel.org/stable/c/132f827e7bac7373e1522e89709d70b43cae5342"
},
{
"url": "https://git.kernel.org/stable/c/19b45c84bd9fd42fa97ff80c6350d604cb871c75"
},
{
"url": "https://git.kernel.org/stable/c/6796412decd2d8de8ec708213bbc958fab72f143"
},
{
"url": "https://git.kernel.org/stable/c/a15f37a40145c986cdf289a4b88390f35efdecc4"
}
],
"title": "kernel/sys.c: fix the racy usage of task_lock(tsk-\u003egroup_leader) in sys_prlimit64() paths",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40201",
"datePublished": "2025-11-12T21:56:34.063Z",
"dateReserved": "2025-04-16T07:20:57.178Z",
"dateUpdated": "2026-10-15T22:02:40.564Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40202 (GCVE-0-2025-40202)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-08-05 12:08
VLAI
EPSS
VEX
Title
ipmi: Rework user message limit handling
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipmi: Rework user message limit handling
The limit on the number of user messages had a number of issues,
improper counting in some cases and a use after free.
Restructure how this is all done to handle more in the receive message
allocation routine, so all refcouting and user message limit counts
are done in that routine. It's a lot cleaner and safer.
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < f63723ca7d7623f9dae1990973cd158671f03c56
(git)
Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < 348121b29594d42d1635648fd3ed31dfa25351d5 (git) Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < 53d6e403affbf6df2c859a0ea00ccfc1e72090ca (git) Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < 0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5 (git) Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < b52da4054ee0bf9ecb44996f2c83236ff50b3812 (git) |
|
| Linux | Linux |
Affected:
5.19
Unaffected: 0 , < 5.19 (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/char/ipmi/ipmi_msghandler.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f63723ca7d7623f9dae1990973cd158671f03c56",
"status": "affected",
"version": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
"versionType": "git"
},
{
"lessThan": "348121b29594d42d1635648fd3ed31dfa25351d5",
"status": "affected",
"version": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
"versionType": "git"
},
{
"lessThan": "53d6e403affbf6df2c859a0ea00ccfc1e72090ca",
"status": "affected",
"version": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
"versionType": "git"
},
{
"lessThan": "0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5",
"status": "affected",
"version": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
"versionType": "git"
},
{
"lessThan": "b52da4054ee0bf9ecb44996f2c83236ff50b3812",
"status": "affected",
"version": "8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/char/ipmi/ipmi_msghandler.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.19"
},
{
"lessThan": "5.19",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.157",
"versionStartIncluding": "5.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.113",
"versionStartIncluding": "5.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"versionStartIncluding": "5.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"versionStartIncluding": "5.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "5.19",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Rework user message limit handling\n\nThe limit on the number of user messages had a number of issues,\nimproper counting in some cases and a use after free.\n\nRestructure how this is all done to handle more in the receive message\nallocation routine, so all refcouting and user message limit counts\nare done in that routine. It\u0027s a lot cleaner and safer."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable paths are entered through ioctls on the `/dev/ipmiN` character device (`IPMICTL_SEND_MSG`, `IPMICTL_SET_GETS_EVENTS_CMD`, `IPMICTL_REGISTER_FOR_CMD`), i.e. local access to the machine. Although BMC-originated IPMB/LAN traffic also exercises the same miscounted paths, the reliable and documented trigger is the local device interface.\nAC:L - The counting imbalance is deterministic, not a race: `ipmi_set_gets_events()` sets `msg-\u003euser` without incrementing `nr_msgs` while delivery always decrements it, so a single `IPMICTL_SET_GETS_EVENTS_CMD` that drains queued events reliably underflows the counter and defeats the allocation limit. No memory-layout or timing conditions outside the attacker\u0027s control are required.\nPR:L - Neither `ipmi_devintf.c` nor `ipmi_msghandler.c` performs any capability check \u2014 reaching the bug only requires an open file descriptor on `/dev/ipmiN`, which server, appliance and embedded/telecom deployments commonly grant to an unprivileged monitoring/management group via udev so agents such as ipmitool can run without root.\nUI:N - The attacker performs everything itself with open()/ioctl() on the IPMI device; no victim action, mount, or file-open by another user is needed.\nS:U - The corrupted state (`struct ipmi_recv_msg`, `struct ipmi_user`, the driver\u0027s static watchdog/poweroff message objects) and all consequences stay within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The fix removes a genuine use-after-free (`ipmi_free_recv_msg(msg)` followed by dereferencing `msg-\u003euser`) plus release of caller-owned message objects; a freed `ipmi_recv_msg`/`ipmi_user` that the attacker can reclaim via heap grooming yields a controlled read primitive, and IPMI messages carry BMC/management-plane data.\nI:H - The use-after-free performs an atomic decrement through a stale `msg-\u003euser` pointer \u2014 an attacker-placed replacement object turns that into an arbitrary 32-bit decrement primitive, and the double release of the watchdog/poweroff static messages corrupts driver state, both leveragable toward control-flow hijack.\nA:H - Underflowing `nr_msgs` makes the signed/unsigned comparison reject every further request with `-EBUSY`, permanently disabling IPMI management (the reported real-world failure), while simultaneously defeating the `max_msgs_per_user` guard that exists specifically to stop a rogue program exhausting kernel memory; the use-after-free additionally causes oopses."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:08:30.982Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f63723ca7d7623f9dae1990973cd158671f03c56"
},
{
"url": "https://git.kernel.org/stable/c/348121b29594d42d1635648fd3ed31dfa25351d5"
},
{
"url": "https://git.kernel.org/stable/c/53d6e403affbf6df2c859a0ea00ccfc1e72090ca"
},
{
"url": "https://git.kernel.org/stable/c/0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5"
},
{
"url": "https://git.kernel.org/stable/c/b52da4054ee0bf9ecb44996f2c83236ff50b3812"
}
],
"title": "ipmi: Rework user message limit handling",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40202",
"datePublished": "2025-11-12T21:56:34.527Z",
"dateReserved": "2025-04-16T07:20:57.179Z",
"dateUpdated": "2026-08-05T12:08:30.982Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40204 (GCVE-0-2025-40204)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-10-15 22:02
VLAI
EPSS
VEX
Title
sctp: Fix MAC comparison to be constant-time
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: Fix MAC comparison to be constant-time
To prevent timing attacks, MACs need to be compared in constant time.
Use the appropriate helper function for this.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:58 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b93fa8dc521d00d2d44bf034fb90e0d79b036617
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0e8b8c326c2a6de4d837b1bb034ea704f4690d77 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1cd60e0d0fb8f0e62ec4499138afce6342dc9d4c (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9c05d44ec24126fc283835b68f82dba3ae985209 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ed3044b9c810c5c24eb2830053fbfe5fd134c5d4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8019b3699289fce3f10b63f98601db97b8d105b0 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0b32ff285ff6f6f1ac1d9495787ccce8837d6405 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dd91c79e4f58fbe2898dac84858033700e0e99fb (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-40204",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T21:58:06.126976Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T22:02:40.705Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/sctp/sm_make_chunk.c",
"net/sctp/sm_statefuns.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b93fa8dc521d00d2d44bf034fb90e0d79b036617",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "0e8b8c326c2a6de4d837b1bb034ea704f4690d77",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "1cd60e0d0fb8f0e62ec4499138afce6342dc9d4c",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "9c05d44ec24126fc283835b68f82dba3ae985209",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "ed3044b9c810c5c24eb2830053fbfe5fd134c5d4",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "8019b3699289fce3f10b63f98601db97b8d105b0",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "0b32ff285ff6f6f1ac1d9495787ccce8837d6405",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
"lessThan": "dd91c79e4f58fbe2898dac84858033700e0e99fb",
"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/sctp/sm_make_chunk.c",
"net/sctp/sm_statefuns.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.12"
},
{
"lessThan": "2.6.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.301",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.246",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.195",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.301",
"versionStartIncluding": "2.6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.246",
"versionStartIncluding": "2.6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.195",
"versionStartIncluding": "2.6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.157",
"versionStartIncluding": "2.6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.113",
"versionStartIncluding": "2.6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"versionStartIncluding": "2.6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"versionStartIncluding": "2.6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "2.6.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant time.\nUse the appropriate helper function for this."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - Both vulnerable comparisons process data from remote SCTP peers \u2014 COOKIE ECHO chunks in `sctp_sf_do_5_1D_ce()`/`sctp_unpack_cookie()` and AUTH chunks in `sctp_sf_authenticate()` \u2014 delivered over IPv4/IPv6 from any routable host. No local access or network adjacency is required.\nAC:H - Exploitation requires statistically extracting nanosecond-scale timing deltas from the early-exit `memcmp` across network jitter and target CPU load, and on 64-bit architectures with `HAVE_EFFICIENT_UNALIGNED_ACCESS` the loop leaks only 8-byte-granular prefixes \u2014 conditions the attacker cannot influence. The bad-signature path is a silent `sctp_sf_pdiscard()`, so no direct request/response oracle exists.\nPR:N - The COOKIE ECHO path is reached pre-authentication on any listening SCTP socket, with the attacker supplying both the cookie contents and the matching verification tag, so no credentials or prior association state are needed. Cookie HMAC signing is enabled by default via `CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5`.\nUI:N - The vulnerable comparisons execute automatically in the SCTP receive path for every COOKIE ECHO or AUTH chunk that reaches a listening endpoint or established association. No action by any local user or administrator is involved.\nS:U - The forged-MAC consequences \u2014 spoofed association establishment, out-of-bounds reads, and softirq hangs \u2014 all occur inside the kernel of the targeted host. No hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - A forged cookie MAC yields a fully attacker-controlled `struct sctp_cookie` whose unvalidated `raw_addr_list_len` drives an unbounded walk in `sctp_raw_to_bind_addrs()`, reading far past the skb. A forged SCTP-AUTH HMAC additionally allows ASCONF Add-IP injection to redirect an established association\u0027s data stream to the attacker.\nI:H - Recovering the MAC constitutes a complete bypass of SCTP\u0027s state-cookie and SCTP-AUTH authentication, letting an off-path attacker forge cookies to establish spoofed associations and inject arbitrary authenticated chunks into existing ones. The attacker-controlled cookie is copied wholesale into the new association via `memcpy(\u0026retval-\u003ec, bear_cookie, ...)` and fed to `sctp_process_init()`.\nA:H - With the cookie MAC forged, `sctp_raw_to_bind_addrs()` at this commit has no bounds checks \u2014 a zero-length address parameter makes `addrs_len -= len` never progress, producing an infinite loop in softirq context, while an oversized length causes an OOB read that can oops the kernel. Forged AUTH chunks also permit tearing down established associations."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:08:33.114Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/b93fa8dc521d00d2d44bf034fb90e0d79b036617"
},
{
"url": "https://git.kernel.org/stable/c/0e8b8c326c2a6de4d837b1bb034ea704f4690d77"
},
{
"url": "https://git.kernel.org/stable/c/1cd60e0d0fb8f0e62ec4499138afce6342dc9d4c"
},
{
"url": "https://git.kernel.org/stable/c/9c05d44ec24126fc283835b68f82dba3ae985209"
},
{
"url": "https://git.kernel.org/stable/c/ed3044b9c810c5c24eb2830053fbfe5fd134c5d4"
},
{
"url": "https://git.kernel.org/stable/c/8019b3699289fce3f10b63f98601db97b8d105b0"
},
{
"url": "https://git.kernel.org/stable/c/0b32ff285ff6f6f1ac1d9495787ccce8837d6405"
},
{
"url": "https://git.kernel.org/stable/c/dd91c79e4f58fbe2898dac84858033700e0e99fb"
}
],
"title": "sctp: Fix MAC comparison to be constant-time",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40204",
"datePublished": "2025-11-12T21:56:35.110Z",
"dateReserved": "2025-04-16T07:20:57.179Z",
"dateUpdated": "2026-10-15T22:02:40.705Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40205 (GCVE-0-2025-40205)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-10-15 22:02
VLAI
EPSS
VEX
Title
btrfs: avoid potential out-of-bounds in btrfs_encode_fh()
Summary
In the Linux kernel, the following vulnerability has been resolved:
btrfs: avoid potential out-of-bounds in btrfs_encode_fh()
The function btrfs_encode_fh() does not properly account for the three
cases it handles.
Before writing to the file handle (fh), the function only returns to the
user BTRFS_FID_SIZE_NON_CONNECTABLE (5 dwords, 20 bytes) or
BTRFS_FID_SIZE_CONNECTABLE (8 dwords, 32 bytes).
However, when a parent exists and the root ID of the parent and the
inode are different, the function writes BTRFS_FID_SIZE_CONNECTABLE_ROOT
(10 dwords, 40 bytes).
If *max_len is not large enough, this write goes out of bounds because
BTRFS_FID_SIZE_CONNECTABLE_ROOT is greater than
BTRFS_FID_SIZE_CONNECTABLE originally returned.
This results in an 8-byte out-of-bounds write at
fid->parent_root_objectid = parent_root_id.
A previous attempt to fix this issue was made but was lost.
https://lore.kernel.org/all/4CADAEEC020000780001B32C@vpn.id2.novell.com/
Although this issue does not seem to be easily triggerable, it is a
potential memory corruption bug that should be fixed. This patch
resolves the issue by ensuring the function returns the appropriate size
for all three cases and validates that *max_len is large enough before
writing any data.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:58 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < 60de2f55d2aca53e81b4ef2a67d7cc9e1eb677db
(git)
Affected: be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < 742b44342204e5dfe3926433823623c1a0c581df (git) Affected: be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < d3a9a8e1275eb9b87f006b5562a287aea3f6885f (git) Affected: be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < d91f6626133698362bba08fbc04bd72c466806d3 (git) Affected: be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < 0276c8582488022f057b4cec21975a5edf079f47 (git) Affected: be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < 361d67276eb8ec6be8f27f4ad6c6090459438fee (git) Affected: be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < 43143776b0a7604d873d1a6f3e552a00aa930224 (git) Affected: be6e8dc0ba84029997075a1ec77b4ddb863cbe15 , < dff4f9ff5d7f289e4545cc936362e01ed3252742 (git) |
|
| Linux | Linux |
Affected:
2.6.29
Unaffected: 0 , < 2.6.29 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-40205",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T21:58:09.178444Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T22:02:40.845Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/btrfs/export.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "60de2f55d2aca53e81b4ef2a67d7cc9e1eb677db",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
},
{
"lessThan": "742b44342204e5dfe3926433823623c1a0c581df",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
},
{
"lessThan": "d3a9a8e1275eb9b87f006b5562a287aea3f6885f",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
},
{
"lessThan": "d91f6626133698362bba08fbc04bd72c466806d3",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
},
{
"lessThan": "0276c8582488022f057b4cec21975a5edf079f47",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
},
{
"lessThan": "361d67276eb8ec6be8f27f4ad6c6090459438fee",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
},
{
"lessThan": "43143776b0a7604d873d1a6f3e552a00aa930224",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
},
{
"lessThan": "dff4f9ff5d7f289e4545cc936362e01ed3252742",
"status": "affected",
"version": "be6e8dc0ba84029997075a1ec77b4ddb863cbe15",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/btrfs/export.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.29"
},
{
"lessThan": "2.6.29",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.301",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.246",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.195",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.301",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.246",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.195",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.157",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.113",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"versionStartIncluding": "2.6.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "2.6.29",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: avoid potential out-of-bounds in btrfs_encode_fh()\n\nThe function btrfs_encode_fh() does not properly account for the three\ncases it handles.\n\nBefore writing to the file handle (fh), the function only returns to the\nuser BTRFS_FID_SIZE_NON_CONNECTABLE (5 dwords, 20 bytes) or\nBTRFS_FID_SIZE_CONNECTABLE (8 dwords, 32 bytes).\n\nHowever, when a parent exists and the root ID of the parent and the\ninode are different, the function writes BTRFS_FID_SIZE_CONNECTABLE_ROOT\n(10 dwords, 40 bytes).\n\nIf *max_len is not large enough, this write goes out of bounds because\nBTRFS_FID_SIZE_CONNECTABLE_ROOT is greater than\nBTRFS_FID_SIZE_CONNECTABLE originally returned.\n\nThis results in an 8-byte out-of-bounds write at\nfid-\u003eparent_root_objectid = parent_root_id.\n\nA previous attempt to fix this issue was made but was lost.\n\nhttps://lore.kernel.org/all/4CADAEEC020000780001B32C@vpn.id2.novell.com/\n\nAlthough this issue does not seem to be easily triggerable, it is a\npotential memory corruption bug that should be fixed. This patch\nresolves the issue by ensuring the function returns the appropriate size\nfor all three cases and validates that *max_len is large enough before\nwriting any data."
}
],
"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 primary trigger is the local `name_to_handle_at(AT_HANDLE_CONNECTABLE)` syscall on a mounted btrfs filesystem, where the caller fully controls the destination buffer size. The nfsd path can also reach the encoder remotely, but only with the non-default `subtree_check` export option, so local is the representative vector.\nAC:L - An unprivileged attacker deterministically controls every element they can influence \u2014 the btrfs mount, the target inode, the `AT_HANDLE_CONNECTABLE` flag, and the undersized `handle_bytes` value (8-9 dwords) that makes the 40-byte write overflow \u2014 with no race or memory-layout grooming required.\nPR:L - `name_to_handle_at()` requires no capability (unlike `open_by_handle_at()`, which needs CAP_DAC_READ_SEARCH), so any local unprivileged user with read access to a btrfs mount can invoke the vulnerable encoder. Creating btrfs subvolumes is likewise permitted to unprivileged users with write access to the parent directory.\nUI:N - The attacker triggers the overflow entirely through their own syscall on an already-mounted filesystem; no victim action, no crafted image mount, and no administrator involvement is needed.\nS:U - The out-of-bounds write corrupts kernel heap memory within the same kernel security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - An 8-byte heap out-of-bounds write is a memory-corruption primitive that can be leveraged to overwrite adjacent kernel objects (e.g. length or pointer fields) and thereby obtain arbitrary kernel-memory disclosure.\nI:H - This is a direct out-of-bounds write of a 64-bit value (`parent_root_objectid`) past the end of a kernel allocation, and per CVSS kernel guidance an OOB write is rated High for integrity due to its potential for control-flow hijacking.\nA:H - Corrupting adjacent kernel heap metadata or object state leads to oops, BUG, or panic, and the write is detectable/fatal under KASAN or hardened allocators, causing a full denial of service."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:08:34.187Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/60de2f55d2aca53e81b4ef2a67d7cc9e1eb677db"
},
{
"url": "https://git.kernel.org/stable/c/742b44342204e5dfe3926433823623c1a0c581df"
},
{
"url": "https://git.kernel.org/stable/c/d3a9a8e1275eb9b87f006b5562a287aea3f6885f"
},
{
"url": "https://git.kernel.org/stable/c/d91f6626133698362bba08fbc04bd72c466806d3"
},
{
"url": "https://git.kernel.org/stable/c/0276c8582488022f057b4cec21975a5edf079f47"
},
{
"url": "https://git.kernel.org/stable/c/361d67276eb8ec6be8f27f4ad6c6090459438fee"
},
{
"url": "https://git.kernel.org/stable/c/43143776b0a7604d873d1a6f3e552a00aa930224"
},
{
"url": "https://git.kernel.org/stable/c/dff4f9ff5d7f289e4545cc936362e01ed3252742"
}
],
"title": "btrfs: avoid potential out-of-bounds in btrfs_encode_fh()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40205",
"datePublished": "2025-11-12T21:56:35.403Z",
"dateReserved": "2025-04-16T07:20:57.179Z",
"dateUpdated": "2026-10-15T22:02:40.845Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40207 (GCVE-0-2025-40207)
Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-05-11 21:44
VLAI
EPSS
VEX
Title
media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()
v4l2_subdev_call_state_try() macro allocates a subdev state with
__v4l2_subdev_state_alloc(), but does not check the returned value. If
__v4l2_subdev_state_alloc fails, it returns an ERR_PTR, and that would
cause v4l2_subdev_call_state_try() to crash.
Add proper error handling to v4l2_subdev_call_state_try().
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
982c0487185bd466059ff618f398a8d074ddb654 , < 5b0057459cdc243ffb35617603142dcace09c711
(git)
Affected: 982c0487185bd466059ff618f398a8d074ddb654 , < ed30811fbed40751deb952bde534aa2632dc0bf7 (git) Affected: 982c0487185bd466059ff618f398a8d074ddb654 , < 94e6336dc1f06a06f5b4cd04d4a012bba34f2857 (git) Affected: 982c0487185bd466059ff618f398a8d074ddb654 , < a553530b3314a0bdc98cf114cdbe204551a70a00 (git) Affected: 982c0487185bd466059ff618f398a8d074ddb654 , < f37df9a0eb5e43fcfe02cbaef076123dc0d79c7e (git) |
|
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"include/media/v4l2-subdev.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5b0057459cdc243ffb35617603142dcace09c711",
"status": "affected",
"version": "982c0487185bd466059ff618f398a8d074ddb654",
"versionType": "git"
},
{
"lessThan": "ed30811fbed40751deb952bde534aa2632dc0bf7",
"status": "affected",
"version": "982c0487185bd466059ff618f398a8d074ddb654",
"versionType": "git"
},
{
"lessThan": "94e6336dc1f06a06f5b4cd04d4a012bba34f2857",
"status": "affected",
"version": "982c0487185bd466059ff618f398a8d074ddb654",
"versionType": "git"
},
{
"lessThan": "a553530b3314a0bdc98cf114cdbe204551a70a00",
"status": "affected",
"version": "982c0487185bd466059ff618f398a8d074ddb654",
"versionType": "git"
},
{
"lessThan": "f37df9a0eb5e43fcfe02cbaef076123dc0d79c7e",
"status": "affected",
"version": "982c0487185bd466059ff618f398a8d074ddb654",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"include/media/v4l2-subdev.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"lessThan": "6.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.157",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.113",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.54",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.4",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "6.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()\n\nv4l2_subdev_call_state_try() macro allocates a subdev state with\n__v4l2_subdev_state_alloc(), but does not check the returned value. If\n__v4l2_subdev_state_alloc fails, it returns an ERR_PTR, and that would\ncause v4l2_subdev_call_state_try() to crash.\n\nAdd proper error handling to v4l2_subdev_call_state_try()."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:44:50.064Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/5b0057459cdc243ffb35617603142dcace09c711"
},
{
"url": "https://git.kernel.org/stable/c/ed30811fbed40751deb952bde534aa2632dc0bf7"
},
{
"url": "https://git.kernel.org/stable/c/94e6336dc1f06a06f5b4cd04d4a012bba34f2857"
},
{
"url": "https://git.kernel.org/stable/c/a553530b3314a0bdc98cf114cdbe204551a70a00"
},
{
"url": "https://git.kernel.org/stable/c/f37df9a0eb5e43fcfe02cbaef076123dc0d79c7e"
}
],
"title": "media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-40207",
"datePublished": "2025-11-12T21:56:35.988Z",
"dateReserved": "2025-04-16T07:20:57.179Z",
"dateUpdated": "2026-05-11T21:44:50.064Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…