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CVE-2025-21842

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

amdkfd: properly free gang_ctx_bo when failed to init user queue

The destructor of a gtt bo is declared as void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void **mem_obj); Which takes void** as the second parameter.

GCC allows passing void* to the function because void* can be implicitly casted to any other types, so it can pass compiling.

However, passing this void* parameter into the function's execution process(which expects void** and dereferencing void**) will result in errors.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2025-21842",
  "cveTags": [],
  "metrics": {
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        "type": "Secondary",
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        "cvssData": {
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          "version": "3.1",
          "baseScore": 7.8,
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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          "userInteraction": "NONE",
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          "baseSeverity": "MEDIUM",
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
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  "affected": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "fb91065851cd5f2735348c5f3eddeeca3d7c2973",
              "lessThan": "ae5ab1c1ae504f622cc1ff48830a9ed48428146d",
              "versionType": "git"
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              "versionType": "git"
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          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.16",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.13.4",
              "versionType": "semver",
              "lessThanOrEqual": "6.13.*"
            },
            {
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix",
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          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c"
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          "defaultStatus": "affected"
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      ]
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  ],
  "published": "2025-03-07T09:15:17.237",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/091a68c58c1bbd2ab7d05d1b32c1306394ec691d",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a33f7f9660705fb2ecf3467b2c48965564f392ce",
      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\namdkfd: properly free gang_ctx_bo when failed to init user queue\n\nThe destructor of a gtt bo is declared as\nvoid amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void **mem_obj);\nWhich takes void** as the second parameter.\n\nGCC allows passing void* to the function because void* can be implicitly\ncasted to any other types, so it can pass compiling.\n\nHowever, passing this void* parameter into the function's\nexecution process(which expects void** and dereferencing void**)\nwill result in errors."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: amdkfd: libera correctamente gang_ctx_bo cuando no se puede inicializar la cola de usuarios El destructor de un bo gtt se declara como void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void **mem_obj); que toma void** como segundo parámetro. GCC permite pasar void* a la función porque void* se puede convertir implícitamente a cualquier otro tipo, por lo que puede pasar la compilación. Sin embargo, pasar este parámetro void* al proceso de ejecución de la función (que espera void** y desreferenciar void**) dará como resultado errores."
    }
  ],
  "lastModified": "2026-07-30T06:21:40.627",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}