gfs2: Fix NULL pointer dereference in gfs2_log_flush (Linux Linux)

CVE-2024-42079
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.27 % · centile 19 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush lock to provide exclusion against gfs2_log_flush(). In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before dereferencing it. Otherwise, we could run into a NULL pointer dereference when outstanding glock work races with an unmount (glock_work_func -> run_queue -> do_xmote -> inode_go_sync -> gfs2_log_flush).

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 82218943058d5e3fe692a38b5a549479738dab33 < c3c5cfa3170c0940bc66a142859caac07d19b9d6 ; affected 82218943058d5e3fe692a38b5a549479738dab33 < 5f6a84cfb33b34610623857bd93919dcb661e29b ; affected 82218943058d5e3fe692a38b5a549479738dab33 < 3429ef5f50909cee9e498c50f0c499b9397116ce ; affected 82218943058d5e3fe692a38b5a549479738dab33 < f54f9d5368a4e92ede7dd078a62788dae3a7c6ef ; affected 82218943058d5e3fe692a38b5a549479738dab33 < 35264909e9d1973ab9aaa2a1b07cda70f12bb828
Linux · Linuxaffected 5.12 ; unaffected 0 < 5.12 ; unaffected 5.15.200 ≤ 5.15.* ; unaffected 6.1.162 ≤ 6.1.* ; unaffected 6.6.37 ≤ 6.6.* ; unaffected 6.9.8 ≤ 6.9.*

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