CVEvulnerability

CVE-2026-53048

5.5 MEDIUM Published 2026-06-24 Modified 2026-07-21 Official page ↗
Status
Analyzed
Published
2026-06-24
Last modified
2026-07-21
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2_log_flush() can be called when sdp->sd_jdesc has already been deallocated and sdp->sd_jdesc is NULL. Commit 35264909e9d1 ("gfs2: Fix NULL pointer dereference in gfs2_log_flush") added a check for that to gfs2_log_flush() itself, but it missed the sdp->sd_jdesc dereference in gfs2_log_release(). Fix that.

Affected configurations

• linux linux kernel (>= 5.15.200 < 5.15.209) • linux linux kernel (>= 6.1.162 < 6.1.175) • linux linux kernel (>= 6.6.37 < 6.6.141) • linux linux kernel (>= 6.9.8 < 6.12.91) • linux linux kernel (>= 6.13 < 6.18.33) • linux linux kernel (>= 6.19 < 7.0.10)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References