apparmor: fix NULL sock in aa_sock_file_perm (Linux Linux)

CVE-2026-45848
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.16 % · centile 5 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aa_sock_file_perm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in __unix_needs_revalidation shows this is at least possible for af_unix sockets. While the fix for af_unix sockets applies for newer mediation this is still the fall back path for older af_unix mediation and other sockets, so ensure it is covered.

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 56974a6fcfef69ee0825bd66ed13e92070ac5224 < 68538ec34fcb4194c7961dc4eca6f5537fec8067 ; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 < 5121b7283f1c46e4c06b88b1dda7b064429d77de ; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 < c11b7c3280d000376e27ebfed17ec7046699eab4 ; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 < 0dc19bca22606f7a61d5988408f74e3ae0ef3486 ; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 < 3852eb9a0392eb435c03dcb47d581bcfe6a9a95b ; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 < ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835
Linux · Linuxaffected 4.17 ; unaffected 0 < 4.17 ; unaffected 5.10.252 ≤ 5.10.* ; unaffected 5.15.202 ≤ 5.15.* ; unaffected 6.1.165 ≤ 6.1.* ; unaffected 6.6.128 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD