CVE-2023-53292
blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
5fd7a84a09e640016fe106dd3e992f5210e23dc7 < 3e977386521b71471e66ec2ba82efdfcc456adf2 5fd7a84a09e640016fe106dd3e992f5210e23dc7 < 245165658e1c9f95c0fecfe02b9b1ebd30a1198a
Linux / Linux
5.19