CVE-2023-53292

MediumCVSS 5.5/10Last modified Oct 15, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published
Sep 16, 2025
Last modified
Oct 15, 2026
NVD status
Modified

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CVE-2023-53292: Medium severity, CVSS 5.5 | Vulnix