CVE Watch14 jul 2026

CVE-2024-42079

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_fr

CVSS

5.5

Medio

EPSS

0.3%

p18

KEV

—

Exploit Today

0-100

Publicado: 29 jul 2024 · Última mod.: 14 jul 2026 · CWE-476

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-08-032026-08-31

Descripción técnica

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).

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