ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths (Linux Linux)

CVE-2026-43066
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.12 % · centile 2 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths During code review, Joseph found that ext4_fc_replay_inode() calls ext4_get_fc_inode_loc() to get the inode location, which holds a reference to iloc.bh that must be released via brelse(). However, several error paths jump to the 'out' label without releasing iloc.bh: - ext4_handle_dirty_metadata() failure - sync_dirty_buffer() failure - ext4_mark_inode_used() failure - ext4_iget() failure Fix this by introducing an 'out_brelse' label placed just before the existing 'out' label to ensure iloc.bh is always released. Additionally, make ext4_fc_replay_inode() propagate errors properly instead of always returning 0.

Faiblesses (CWE)

  • CWE-401 — Mémoire non libérée après sa durée de vie utile

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 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 0892f12cd49fde5d5db68137923db107f894f3a3 ; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 5a63033696e60b5d70816f1d119645ac5b0b0a03 ; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 9c90449a9ac2cd1ba540ad2561b8b70c1bfb0a25 ; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < ca99cbcc316cdfd2040cc2b13d1426ccb3b3b50b ; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 19782b4c793b49a6aa4abbb307ddff3610009d21 ; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < f7817ad399d604e8639005d87d148b5ec626ad26
Linux · Linuxaffected 5.10 ; unaffected 0 < 5.10 ; unaffected 5.10.253 ≤ 5.10.* ; unaffected 5.15.203 ≤ 5.15.* ; unaffected 6.1.168 ≤ 6.1.* ; unaffected 6.6.131 ≤ 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