CVE-2026-31567: Linux kernel · PM: sleep: Drop spurious WARN_ON() from pm_restore_gfp_mask()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 12 Nov 2026, 03:33 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 24 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Linux Linux | Affected
| 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.