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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.

PUBLISHED Reserved 2025-09-16 | Published 2025-09-16 | Updated 2025-09-16 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 3e977386521b71471e66ec2ba82efdfcc456adf2
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 245165658e1c9f95c0fecfe02b9b1ebd30a1198a
affected

Default status
affected

6.4.7 (semver)
unaffected

6.5 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/3e977386521b71471e66ec2ba82efdfcc456adf2

git.kernel.org/...c/245165658e1c9f95c0fecfe02b9b1ebd30a1198a

cve.org (CVE-2023-53292)

nvd.nist.gov (CVE-2023-53292)

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