Unrated severityNVD Advisory· Published Nov 12, 2025· Updated Apr 15, 2026

CVE-2025-40146

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/

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernelinferred
osv-coords
pkg:linux/kernel
Range: >= 3.16.0, < 6.17.3

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/8d26acf8477174d8ef690eb6affe13a630f586aenvd
git.kernel.org/stable/c/b86433721f46d934940528f28d49c1dedb690df1nvd

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