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VulnerabilityPublished Updated

CVE-2026-31445: Linux kernel · mm/damon/core: avoid use of half-online-committed context

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 12 Nov 2026, 03:47 UTC

Severity
Medium

Rated Medium 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 22 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

AI-suggested

A fix has been implemented in the Linux kernel to prevent the use of partially committed or corrupted DAMON contexts by introducing a detection flag and aborting operations on corrupted contexts. Users should update to the fixed kernel version once available. No additional mitigation is specified or required beyond applying the official fix.

Description

A vulnerability in the Linux kernel's memory management subsystem (DAMON) could lead to the use of a partially updated or corrupted context object due to internal memory allocation failures during online parameter updates. This may cause unexpected behavior, including potential NULL pointer dereferences. The issue has been addressed by introducing a mechanism to detect and avoid using corrupted contexts.

References

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