CVE-2023-54088

blk-cgroup: hold queue_lock when removing blkg->q_node

State: Published
Severity: 7.8 High
Published: Dec 24, 2025
Updated: Oct 15, 2026
Reserved: Dec 24, 2025

Description

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

blk-cgroup: hold queue_lock when removing blkg->q_node

When blkg is removed from q->blkg_list from blkg_free_workfn(), queue_lock has to be held, otherwise, all kinds of bugs(list corruption, hard lockup, ..) can be triggered from blkg_destroy_all().

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	81c1188905f88b77743d1fdeeedfc8cb7b67787d to before b5dae1cd0d8368b4338430ff93403df67f0b8bccAffected bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a to before 083b58373463a6e5ee60ecb135269348f68ad7dfAffected f1c006f1c6850c14040f8337753a63119bba39b9 to before cd4ffdf56791eec95af01f06bee1ec7665ca75c4Affected f1c006f1c6850c14040f8337753a63119bba39b9 to before c164c7bc9775be7bcc68754bb3431fce5823822eAffected 6.1.16 to before 6.1.17Affected 6.2.3 to before 6.2.4Affected
LinuxLinux	6.3Affected before 6.3Not affected 6.1.17 through 6.1.Not affected 6.2.4 through 6.2.Not affected 6.4.12 through 6.4.*Not affected 6.5 and laterNot affected

Product

Versions

LinuxLinux

81c1188905f88b77743d1fdeeedfc8cb7b67787d to before b5dae1cd0d8368b4338430ff93403df67f0b8bccAffected
bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a to before 083b58373463a6e5ee60ecb135269348f68ad7dfAffected
f1c006f1c6850c14040f8337753a63119bba39b9 to before cd4ffdf56791eec95af01f06bee1ec7665ca75c4Affected
f1c006f1c6850c14040f8337753a63119bba39b9 to before c164c7bc9775be7bcc68754bb3431fce5823822eAffected
6.1.16 to before 6.1.17Affected
6.2.3 to before 6.2.4Affected

LinuxLinux

6.3Affected
before 6.3Not affected
6.1.17 through 6.1.*Not affected
6.2.4 through 6.2.*Not affected
6.4.12 through 6.4.*Not affected
6.5 and laterNot affected

References

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