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VulnerabilityPublished

CVE-2026-63873: Linux kernel · accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 15:35 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Jul 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 30 Oct 2026.

What to do

AI-suggested

A fix has been applied to the Linux kernel source code to add the missing mmput() call. Users should update to the fixed kernel version once available. No other mitigation is indicated.

Description

A vulnerability in the Linux kernel's accel/amdxdna component caused a memory management issue where a reference to mm_struct was leaked due to a missing mmput() call in the aie2_populate_range() function. This flaw has been fixed by adding the missing mmput() call before a jump to the 'again' label.

References

Community reviews

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