CVE-2026-31544: Linux kernel · firmware: arm_scmi: Fix NULL dereference on notify error path
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 12 Nov 2026, 03:34 UTC
Rated Medium 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
AI-suggested
A fix has been implemented in the Linux kernel to enforce returning an ERR_PTR instead of NULL in the affected helper function. Users should update to the fixed kernel versions once available. No additional mitigation steps are indicated.
Description
A NULL pointer dereference vulnerability in the Linux kernel's arm_scmi firmware component was fixed. The issue occurred because a helper function could return NULL instead of an expected ERR_PTR on failure, leading to a potential NULL dereference on the notify error path. The fix enforces returning an ERR_PTR when no handler is found, preventing the NULL dereference.