cbcvebase.
CVE-2023-53292
published 2025-09-16

CVE-2023-53292: 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…

PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
3.4th percentile
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.

Affected

11 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.4.11-1 (forky)linux 6.4.11-1 (forky)
linuxlinux
linuxlinux>= 5fd7a84a09e640016fe106dd3e992f5210e23dc7 < 988ddb77218d3975dd13dee7bb0e1fae098a9fdb988ddb77218d3975dd13dee7bb0e1fae098a9fdb
linuxlinux>= 5fd7a84a09e640016fe106dd3e992f5210e23dc7 < 3e977386521b71471e66ec2ba82efdfcc456adf23e977386521b71471e66ec2ba82efdfcc456adf2
linuxlinux>= 5fd7a84a09e640016fe106dd3e992f5210e23dc7 < 245165658e1c9f95c0fecfe02b9b1ebd30a1198a245165658e1c9f95c0fecfe02b9b1ebd30a1198a
linuxlinux_kernel< 6.4.76.4.7
linuxlinux_kernel>= 0 < 6.4.11-16.4.11-1
linuxlinux_kernel>= 0 < 6.4.11-16.4.11-1
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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