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CVE-2025-21987

Estado: AnalizadaMedia (5.5)—

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

drm/amdgpu: init return value in amdgpu_ttm_clear_buffer

Otherwise an uninitialized value can be returned if amdgpu_res_cleared returns true for all regions.

Possibly closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3812

(cherry picked from commit 7c62aacc3b452f73a1284198c81551035fac6d71)

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)

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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "versions": [
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  "published": "2025-04-02T13:15:43.207",
  "references": [
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      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-908"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: init return value in amdgpu_ttm_clear_buffer\n\nOtherwise an uninitialized value can be returned if\namdgpu_res_cleared returns true for all regions.\n\nPossibly closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3812\n\n(cherry picked from commit 7c62aacc3b452f73a1284198c81551035fac6d71)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdgpu: valor de retorno inicial en amdgpu_ttm_clear_buffer. De lo contrario, se puede devolver un valor no inicializado si amdgpu_res_cleared devuelve verdadero para todas las regiones. Posible cierre: https://gitlab.freedesktop.org/drm/amd/-/issues/3812 (seleccionado de la confirmación 7c62aacc3b452f73a1284198c81551035fac6d71)."
    }
  ],
  "lastModified": "2026-06-17T08:44:46.763",
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