Unrated severityNVD Advisory· Published Sep 16, 2025· Updated Jan 14, 2026
blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none
CVE-2023-53292
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.
Affected products
2- Linux/Linuxv5Range: 5.19
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2News mentions
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