fkie_cve-2025-38421
Vulnerability from fkie_nvd
Published
2025-07-25 15:15
Modified
2025-07-25 15:29
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0d10b532f861253c283863522d59d099fcb0796d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d9db3a941270d92bbd1a6a6b54a10324484f2f2d
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: platform/x86/amd: pmf: Usar asignaciones administradas por dispositivo. Si la configuraci\u00f3n de Smart PC falla por cualquier motivo, esto puede provocar una doble liberaci\u00f3n al descargar amd-pmf. Esto se debe a que dev-\u0026gt;buf se liber\u00f3, pero nunca se configur\u00f3 como NULL y se libera de nuevo en amd_pmf_remove(). Para evitar errores sutiles de asignaci\u00f3n en fallos que provoquen una doble liberaci\u00f3n, cambie todas las asignaciones a asignaciones administradas por dispositivo."
    }
  ],
  "id": "CVE-2025-38421",
  "lastModified": "2025-07-25T15:29:19.837",
  "metrics": {},
  "published": "2025-07-25T15:15:26.927",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0d10b532f861253c283863522d59d099fcb0796d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d9db3a941270d92bbd1a6a6b54a10324484f2f2d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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