CVE-2025-38421 (GCVE-0-2025-38421)
Vulnerability from cvelistv5
Published
2025-07-25 14:16
Modified
2025-07-28 04:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd: pmf: Use device managed allocations If setting up smart PC fails for any reason then this can lead to a double free when unloading amd-pmf. This is because dev->buf was freed but never set to NULL and is again freed in amd_pmf_remove(). To avoid subtle allocation bugs in failures leading to a double free change all allocations into device managed allocations.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5b1122fc4995f308b21d7cfc64ef9880ac834d20
Version: 5b1122fc4995f308b21d7cfc64ef9880ac834d20
Version: e70b4b8f93d7fcf8ee063a1d1f18782c4da3d335
Version: 3ed60e51ffdbfef14169bd967e21a6ba5e5ff42b
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          "programFiles": [
            "drivers/platform/x86/amd/pmf/core.c",
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86/amd: pmf: Use device managed allocations\n\nIf setting up smart PC fails for any reason then this can lead to\na double free when unloading amd-pmf.  This is because dev-\u003ebuf was\nfreed but never set to NULL and is again freed in amd_pmf_remove().\n\nTo avoid subtle allocation bugs in failures leading to a double free\nchange all allocations into device managed allocations."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:21:43.366Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d9db3a941270d92bbd1a6a6b54a10324484f2f2d"
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      "title": "platform/x86/amd: pmf: Use device managed allocations",
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    "cveId": "CVE-2025-38421",
    "datePublished": "2025-07-25T14:16:42.409Z",
    "dateReserved": "2025-04-16T04:51:24.014Z",
    "dateUpdated": "2025-07-28T04:21:43.366Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
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  }
}


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