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CVE-2025-38254

Estado: AnalizadaMedia (5.5)—

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

drm/amd/display: Add sanity checks for drm_edid_raw()

When EDID is retrieved via drm_edid_raw(), it doesn't guarantee to return proper EDID bytes the caller wants: it may be either NULL (that leads to an Oops) or with too long bytes over the fixed size raw_edid array (that may lead to memory corruption). The latter was reported actually when connected with a bad adapter.

Add sanity checks for drm_edid_raw() to address the above corner cases, and return EDID_BAD_INPUT accordingly.

(cherry picked from commit 648d3f4d209725d51900d6a3ed46b7b600140cdf)

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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  "published": "2025-07-09T11:15:27.653",
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  "descriptions": [
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add sanity checks for drm_edid_raw()\n\nWhen EDID is retrieved via drm_edid_raw(), it doesn't guarantee to\nreturn proper EDID bytes the caller wants: it may be either NULL (that\nleads to an Oops) or with too long bytes over the fixed size raw_edid\narray (that may lead to memory corruption).  The latter was reported\nactually when connected with a bad adapter.\n\nAdd sanity checks for drm_edid_raw() to address the above corner\ncases, and return EDID_BAD_INPUT accordingly.\n\n(cherry picked from commit 648d3f4d209725d51900d6a3ed46b7b600140cdf)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Se han añadido comprobaciones de seguridad para drm_edid_raw(). Cuando se recupera el EDID mediante drm_edid_raw(), no se garantiza la devolución de los bytes de EDID correctos que el usuario solicita: puede ser nulo (lo que provoca un error) o con bytes demasiado largos que exceden el tamaño fijo de la matriz raw_edid (lo que puede provocar corrupción de memoria). Esto último se informó al conectar con un adaptador defectuoso. Se han añadido comprobaciones de seguridad para drm_edid_raw() para abordar los casos especiales mencionados y devolver EDID_BAD_INPUT en consecuencia. (Seleccionado del commit 648d3f4d209725d51900d6a3ed46b7b600140cdf)"
    }
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  "lastModified": "2026-06-17T09:16:29.393",
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