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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-53121

amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init()CVE-2026-53121

Answer in brief

CVE-2026-53121 records a Unknown severity vulnerability in amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 24, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Jun 24, 2026Material review Nov 6, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=f9a378ff6443cdcd4387e5dbb76fa5fa549a83ec <539aabbab190825c77eb455ec35652cb3720625f || >=f9a378ff6443cdcd4387e5dbb76fa5fa549a83ec <7f9aa2359742eaa6ea65ec0d20dafdfd0add9b8b || >=f9a378ff6443cdcd4387e5dbb76fa5fa549a83ec <beda3b363546a423e4e29a7395e04c0ac4ff677e539aabbab190825c77eb455ec35652cb3720625f, 7f9aa2359742eaa6ea65ec0d20dafdfd0add9b8b, beda3b363546a423e4e29a7395e04c0ac4ff677e
Linux/Linuxgeneric6.14Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 539aabbab190825c77eb455ec35652cb3720625f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jun 24, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init() On failure to set the epp, the function amd_pstate_epp_cpu_init() returns with an error code without freeing the cpudata object that was allocated at the beginning of the function. Ensure that the cpudata object is freed before returning from the function. This memory leak was discovered by Claude Opus 4.6 with the aid of Chris Mason's AI review-prompts (https://github.com/masoncl/review-prompts/tree/main/kernel).

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 6, 2026
References
3 linked sources
Open source record