CVE-2023-52448

gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump

State: Published
Severity: Not scored
Published: Feb 22, 2024
Updated: May 11, 2026
Reserved: Feb 20, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump

Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	72244b6bc752b5c496f09de9a13c18adc314a53c to before efc8ef87ab9185a23d5676f2f7d986022d91bcdeAffected 72244b6bc752b5c496f09de9a13c18adc314a53c to before 5c28478af371a1c3fdb570ca67f110e1ae60fc37Affected 72244b6bc752b5c496f09de9a13c18adc314a53c to before ee0586d73cbaf0e7058bc640d62a9daf2dfa9178Affected 72244b6bc752b5c496f09de9a13c18adc314a53c to before d69d7804cf9e2ba171a27e5f98bc266f13d0414aAffected 72244b6bc752b5c496f09de9a13c18adc314a53c to before 067a7c48c2c70f05f9460d6f0e8423e234729f05Affected 72244b6bc752b5c496f09de9a13c18adc314a53c to before c323efd620c741168c8e0cc6fc0be04ab57e331aAffected 72244b6bc752b5c496f09de9a13c18adc314a53c to before 8877243beafa7c6bfc42022cbfdf9e39b25bd4faAffected
LinuxLinux	4.20Affected before 4.20Not affected 5.4.268 through 5.4.Not affected 5.10.209 through 5.10.Not affected 5.15.148 through 5.15.Not affected 6.1.75 through 6.1.Not affected 6.6.14 through 6.6.Not affected 6.7.2 through 6.7.Not affected 6.8 and laterNot affected

Product

Versions

LinuxLinux

72244b6bc752b5c496f09de9a13c18adc314a53c to before efc8ef87ab9185a23d5676f2f7d986022d91bcdeAffected
72244b6bc752b5c496f09de9a13c18adc314a53c to before 5c28478af371a1c3fdb570ca67f110e1ae60fc37Affected
72244b6bc752b5c496f09de9a13c18adc314a53c to before ee0586d73cbaf0e7058bc640d62a9daf2dfa9178Affected
72244b6bc752b5c496f09de9a13c18adc314a53c to before d69d7804cf9e2ba171a27e5f98bc266f13d0414aAffected
72244b6bc752b5c496f09de9a13c18adc314a53c to before 067a7c48c2c70f05f9460d6f0e8423e234729f05Affected
72244b6bc752b5c496f09de9a13c18adc314a53c to before c323efd620c741168c8e0cc6fc0be04ab57e331aAffected
72244b6bc752b5c496f09de9a13c18adc314a53c to before 8877243beafa7c6bfc42022cbfdf9e39b25bd4faAffected

LinuxLinux

4.20Affected
before 4.20Not affected
5.4.268 through 5.4.*Not affected
5.10.209 through 5.10.*Not affected
5.15.148 through 5.15.*Not affected
6.1.75 through 6.1.*Not affected
6.6.14 through 6.6.*Not affected
6.7.2 through 6.7.*Not affected
6.8 and laterNot affected

References

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