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Status published
Unknown
CVE-2023-53292
blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Linux
View all reports →Affected Software
Linux
Vulnerable Versions:
5fd7a84a09e640016fe106dd3e992f5210e23dc7, 5.19, 0, 6.1.175, 6.4.7, 6.5
Timeline
Official Publish:
September 16th, 2025
Last Modified:
June 1st, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.