In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none After grabbing q->sysfs_lock, q->elevator may become NULL because of elevator switch. Fix the NULL dereference on q->elevator by checking it with lock.
History

Wed, 17 Sep 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Wed, 17 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important


Tue, 16 Sep 2025 08:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none After grabbing q->sysfs_lock, q->elevator may become NULL because of elevator switch. Fix the NULL dereference on q->elevator by checking it with lock.
Title blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-16T08:11:24.583Z

Updated: 2025-09-16T08:11:24.583Z

Reserved: 2025-09-16T08:09:37.992Z

Link: CVE-2023-53292

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-16T08:15:38.457

Modified: 2025-09-16T12:49:16.060

Link: CVE-2023-53292

cve-icon Redhat

Severity : Important

Publid Date: 2025-09-16T00:00:00Z

Links: CVE-2023-53292 - Bugzilla