CVE Database›Document archive›CVE-2023-3212

CVE-2023-3212

kernel: gfs2: NULL pointer dereference in gfs2_evict_inode()

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Severity

Low

Red Hat Product Security

4.4

CVSS 3.1

Review impact separately from score.

Published · April 28, 2023

Updated · June 28, 2026

Description

A NULL pointer dereference flaw was found in the gfs2 file system in the Linux kernel. This issue occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. This flaw allows a privileged local user to cause a kernel panic.

Statement

Because exploitation of this flaw requires that an attacker is able to mount volumes they have prepared themselves or to corrupt existing system volumes, Red Hat assesses the impact of this vulnerability as Low.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference