CVE-2024-42079

Advisory lineage Upstream: 0 Downstream: 32
Analyzed
Published: 29 Jul 2024, 15:52
Last modified:11 May 2026, 20:26

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.05% LOW
0% probability +0.04%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

29 Jul 2024, 15:52
Published
Vulnerability first disclosed
11 May 2026, 20:26
Last Modified
Vulnerability information updated

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).

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.05%• Percentile: 17%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • linux•linux

    ≥ 82218943058d5e3fe692a38b5a549479738dab33, < c3c5cfa3170c0940bc66a142859caac07d19b9d6 | ≥ 82218943058d5e3fe692a38b5a549479738dab33, < 5f6a84cfb33b34610623857bd93919dcb661e29b | ≥ 82218943058d5e3fe692a38b5a549479738dab33, < 3429ef5f50909cee9e498c50f0c499b9397116ce | ≥ 82218943058d5e3fe692a38b5a549479738dab33, < f54f9d5368a4e92ede7dd078a62788dae3a7c6ef | ≥ 82218943058d5e3fe692a38b5a549479738dab33, < 35264909e9d1973ab9aaa2a1b07cda70f12bb828 | 5.12

  • linux•linux_kernel

    < 6.6.37 | ≥ 6.7, < 6.9.8

References (5)