FKIE_CVE-2025-38421

Vulnerability from fkie_nvd - Published: 2025-07-25 15:15 - Updated: 2025-11-19 18:59
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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/0d10b532f861253c283863522d59d099fcb0796dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d9db3a941270d92bbd1a6a6b54a10324484f2f2dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.16
linux linux_kernel 6.16
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    {
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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": "2025-11-19T18:59:33.060",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-07-25T15:15:26.927",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-415"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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