CVEvulnerability

CVE-2024-42079

5.5 MEDIUM Published 2024-07-29 Modified 2026-10-15 Official page ↗
Status
Modified
Published
2024-07-29
Last modified
2026-10-15
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: 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).

Affected configurations

• linux linux kernel (< 6.6.37) • linux linux kernel (>= 6.7 < 6.9.8)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References