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CVE-2023-53292

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CVE-2023-53292

Published: Sep 16, 2025

Modified: Jun 1, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
5fd7a84a09e640016fe106dd3e992f5210e23dc7 - < 988ddb77218d3975dd13dee7bb0e1fae098a9fdb
affected
5fd7a84a09e640016fe106dd3e992f5210e23dc7 - < 3e977386521b71471e66ec2ba82efdfcc456adf2
affected
5fd7a84a09e640016fe106dd3e992f5210e23dc7 - < 245165658e1c9f95c0fecfe02b9b1ebd30a1198a

Linux

Linux

affected
5.19
unaffected
0 - < 5.19
unaffected
6.1.175 - <= 6.1.*
unaffected
6.4.7 - <= 6.4.*
unaffected
6.5 - <= *

References

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