CVE-2026-53121 (GCVE-0-2026-53121)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30
VLAI
Title
amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init()
Summary
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).
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f9a378ff6443cdcd4387e5dbb76fa5fa549a83ec , < 539aabbab190825c77eb455ec35652cb3720625f (git)
Affected: f9a378ff6443cdcd4387e5dbb76fa5fa549a83ec , < 7f9aa2359742eaa6ea65ec0d20dafdfd0add9b8b (git)
Affected: f9a378ff6443cdcd4387e5dbb76fa5fa549a83ec , < beda3b363546a423e4e29a7395e04c0ac4ff677e (git)
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Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/cpufreq/amd-pstate.c"
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              ],
              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\namd-pstate: Fix memory leak in amd_pstate_epp_cpu_init()\n\nOn failure to set the epp, the function amd_pstate_epp_cpu_init()\nreturns with an error code without freeing the cpudata object that was\nallocated at the beginning of the function.\n\nEnsure that the cpudata object is freed before returning from the\nfunction.\n\nThis memory leak was discovered by Claude Opus 4.6 with the aid of\nChris Mason\u0027s AI review-prompts\n(https://github.com/masoncl/review-prompts/tree/main/kernel)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T16:30:51.294Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/beda3b363546a423e4e29a7395e04c0ac4ff677e"
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      ],
      "title": "amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init()",
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    "datePublished": "2026-06-24T16:30:51.294Z",
    "dateReserved": "2026-06-09T07:44:35.386Z",
    "dateUpdated": "2026-06-24T16:30:51.294Z",
    "state": "PUBLISHED"
  },
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.