btrfs: fix NULL dereference on root when tracing inode eviction (Linux Linux)

CVE-2025-71184
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.14 % · 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: btrfs: fix NULL dereference on root when tracing inode eviction When evicting an inode the first thing we do is to setup tracing for it, which implies fetching the root's id. But in btrfs_evict_inode() the root might be NULL, as implied in the next check that we do in btrfs_evict_inode(). Hence, we either should set the ->root_objectid to 0 in case the root is NULL, or we move tracing setup after checking that the root is not NULL. Setting the rootid to 0 at least gives us the possibility to trace this call even in the case when the root is NULL, so that's the solution taken here.

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 1abe9b8a138c9988ba8f7bfded6453649a31541f < 99181ddb124cfe2b09f5e924c308222d2339e82a ; affected 1abe9b8a138c9988ba8f7bfded6453649a31541f < 64d8abd8c5305795a2b35fc96039d99d34f5e762 ; affected 1abe9b8a138c9988ba8f7bfded6453649a31541f < 582ba48e4a4c06fef6bdcf4e57b7b9af660bbd0c ; affected 1abe9b8a138c9988ba8f7bfded6453649a31541f < 99e057f3d3ef24b99a7b1d84e01dd1bd890098da ; affected 1abe9b8a138c9988ba8f7bfded6453649a31541f < f157dd661339fc6f5f2b574fe2429c43bd309534
Linux · Linuxaffected 2.6.39 ; unaffected 0 < 2.6.39 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.130 ≤ 6.6.* ; unaffected 6.12.66 ≤ 6.12.* ; unaffected 6.18.6 ≤ 6.18.*

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