Riskcovery

CVE-2025-40146

blk-mq: fix potential deadlock while nr_requests grown

State
Published
Severity
Not scored
Published
Nov 12, 2025
Updated
May 11, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

blk-mq: fix potential deadlock while nr_requests grown

Allocate and free sched_tags while queue is freezed can deadlock[1], this is a long term problem, hence allocate memory before freezing queue and free memory after queue is unfreezed.

[1] https://lore.kernel.org/all/0659ea8d-a463-47c8-9180-43c719e106eb@linux.ibm.com/

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • e3a2b3f931f59d5284abd13faf8bded726884ffd to before 8d26acf8477174d8ef690eb6affe13a630f586aeAffected
  • e3a2b3f931f59d5284abd13faf8bded726884ffd to before b86433721f46d934940528f28d49c1dedb690df1Affected
LinuxLinux
  • 3.16Affected
  • before 3.16Not affected
  • 6.17.3 through 6.17.*Not affected
  • 6.18 and laterNot affected

References

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