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THREAT OPS › Threat News › [NVD] CVE-2023-53292 (MEDIUM 5.5) — 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 i

[NVD] CVE-2023-53292 (MEDIUM 5.5) — 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 i

lownvdPublished 2025-09-16

CVE-2023-53292 CVSS: 5.5 MEDIUM Published: 2025-09-16T08:15:38.457

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.

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2023-53292