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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2023-53292

blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 5fd7a84a09e640016fe106dd3e992f5210e23dc7 to < 988ddb77218d3975dd13dee7bb0e1fae098a9fdbaffected
  • 5fd7a84a09e640016fe106dd3e992f5210e23dc7 to < 3e977386521b71471e66ec2ba82efdfcc456adf2affected
  • 5fd7a84a09e640016fe106dd3e992f5210e23dc7 to < 245165658e1c9f95c0fecfe02b9b1ebd30a1198aaffected

Linux Linux

Default version status: affected

  • 5.19affected
  • 0 to < 5.19unaffected
  • 6.1.175 to ≤ 6.1.*unaffected
  • 6.4.7 to ≤ 6.4.*unaffected
  • 6.5 to ≤ *unaffected

References