CVE-2025-40146

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/[email protected]/

Package Linux Kernel
Published 2025-11-12
Last modified 2026-04-15
Patch available
Yes

Affected versions

Linux kernel versions 3.16 and later are affected. Fixed in 6.17.3, 6.18 and their respective stable series.

Affected from
≥ 3.16
Fixed in
✓ 6.17.3 6.17.x ✓ 6.18

References

2 total

Frequently asked questions

  • What is CVE-2025-40146?

    CVE-2025-40146 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.16 onward and has been patched in 6.17.3 and 6.18. CVE-2025-40146 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2025-40146?

    Yes. CVE-2025-40146 has been patched. Fixed versions include 6.17.3 and 6.18. If you are running Linux kernel 3.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2025-40146 actively exploited?

    No. CVE-2025-40146 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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