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VulnerabilityPublished Updated

CVE-2026-31567: Linux kernel · PM: sleep: Drop spurious WARN_ON() from pm_restore_gfp_mask()

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 12 Nov 2026, 03:33 UTC

Severity
Low

Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Linux LinuxAffected
  • =6.17.8
Fixed in–

AI-suggested

A fix is available that removes the WARN_ON() wrapper causing the spurious warnings. Users should update to the fixed Linux kernel version 6.17.8 or later where this issue is resolved. No additional mitigation is required as the issue only caused false warnings and no functional impact.

Description

A Linux kernel issue involving the pm_restore_gfp_mask() function caused spurious WARN_ON() warnings due to a refcount-based GFP mask management change. This was fixed by removing the WARN_ON() wrapper to prevent false warnings during certain hibernation paths without affecting functionality.

References

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