af_unix: read UNIX_DIAG_VFS data under unix_state_lock (Linux Linux)

CVE-2026-31673
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: af_unix: read UNIX_DIAG_VFS data under unix_state_lock Exact UNIX diag lookups hold a reference to the socket, but not to u->path. Meanwhile, unix_release_sock() clears u->path under unix_state_lock() and drops the path reference after unlocking. Read the inode and device numbers for UNIX_DIAG_VFS while holding unix_state_lock(), then emit the netlink attribute after dropping the lock. This keeps the VFS data stable while the reply is being built.

Faiblesses (CWE)

  • CWE-362 — Situation de compétition

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5f7b0569460b7d8d01ca776430a00505a68b7584 < e7339db13b9ddb63417b12da55fd6191e59f7442 ; affected 5f7b0569460b7d8d01ca776430a00505a68b7584 < 4f6a8f10182c3a9d22e8eb183957ae7ade9e4bf7 ; affected 5f7b0569460b7d8d01ca776430a00505a68b7584 < c3ec44ab4526bbc4b6c9fc845af86488244f4c9b ; affected 5f7b0569460b7d8d01ca776430a00505a68b7584 < b9232421a77a649c9376c99fdfc8cb7f79cad34c ; affected 5f7b0569460b7d8d01ca776430a00505a68b7584 < 0c739f3785f84af695952c2bac8be2f45082c9b8 ; affected 5f7b0569460b7d8d01ca776430a00505a68b7584 < 900a4e0910e98b8caef117d5df00471fa438dcf9
Linux · Linuxaffected 3.3 ; unaffected 0 < 3.3 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.136 ≤ 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