CVE-2023-53292
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/09/2025
Last modified:
16/09/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none<br />
<br />
After grabbing q->sysfs_lock, q->elevator may become NULL because of<br />
elevator switch.<br />
<br />
Fix the NULL dereference on q->elevator by checking it with lock.