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CVE-2025-21989

Estado: ModificadaMedia (5.5)—

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

drm/amd/display: fix missing .is_two_pixels_per_container

Starting from 6.11, AMDGPU driver, while being loaded with amdgpu.dc=1, due to lack of .is_two_pixels_per_container function in dce60_tg_funcs, causes a NULL pointer dereference on PCs with old GPUs, such as R9 280X.

So this fix adds missing .is_two_pixels_per_container to dce60_tg_funcs.

(cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)

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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          "version": "2.0.3",
          "timestamp": "2025-10-01T17:14:10.062764Z"
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          "programFiles": [
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  "published": "2025-04-02T13:15:43.427",
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      "description": [
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          "lang": "en",
          "value": "CWE-476"
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    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
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          "value": "CWE-476"
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix missing .is_two_pixels_per_container\n\nStarting from 6.11, AMDGPU driver, while being loaded with amdgpu.dc=1,\ndue to lack of .is_two_pixels_per_container function in dce60_tg_funcs,\ncauses a NULL pointer dereference on PCs with old GPUs, such as R9 280X.\n\nSo this fix adds missing .is_two_pixels_per_container to dce60_tg_funcs.\n\n(cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)"
    },
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: se corrige la falta de .is_two_pixels_per_container. A partir de la versión 6.11, el controlador AMDGPU, al cargarse con amdgpu.dc=1, debido a la falta de la función .is_two_pixels_per_container en dce60_tg_funcs, provoca una desreferencia de puntero nulo en PC con GPU antiguas, como la R9 280X. Por lo tanto, esta corrección añade la falta de .is_two_pixels_per_container a dce60_tg_funcs. (Seleccionado de la confirmación bd4b125eb949785c6f8a53b0494e32795421209d)"
    }
  ],
  "lastModified": "2026-06-17T08:44:46.963",
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