CVE-2025-38596

Estado: ModificadaAlta (7.8)—

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

drm/panthor: Fix UAF in panthor_gem_create_with_handle() debugfs code

The object is potentially already gone after the drm_gem_object_put(). In general the object should be fully constructed before calling drm_gem_handle_create(), except the debugfs tracking uses a separate lock and list and separate flag to denotate whether the object is actually initialized.

Since I'm touching this all anyway simplify this by only adding the object to the debugfs when it's ready for that, which allows us to delete that separate flag. panthor_gem_debugfs_bo_rm() already checks whether we've actually been added to the list or this is some error path cleanup.

Leer descripción completaMostrar menos

v2: Fix build issues for !CONFIG_DEBUGFS (Adrián)

v3: Add linebreak and remove outdated comment (Liviu)

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.16%
Percentil entre todas las CVEs puntuadas: 4
Fecha de la puntuación: 5/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1059 Command and Scripting Interpreterexecution75 %

CWE-416 (use-after-free) con AV:L/PR:L (acceso local, requiere privilegios) permite escalada. El UAF en código del kernel permite ejecución de código con privilegios elevados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Privileged Account Management Limit Software Installation Behavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-416

Referencias

JSON original (NVD)

Mostrar

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        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
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              "status": "unaffected",
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            "drivers/gpu/drm/panthor/panthor_gem.h"
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  "published": "2025-08-19T17:15:37.480",
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      "description": [
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          "value": "CWE-416"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Fix UAF in panthor_gem_create_with_handle() debugfs code\n\nThe object is potentially already gone after the drm_gem_object_put().\nIn general the object should be fully constructed before calling\ndrm_gem_handle_create(), except the debugfs tracking uses a separate\nlock and list and separate flag to denotate whether the object is\nactually initialized.\n\nSince I'm touching this all anyway simplify this by only adding the\nobject to the debugfs when it's ready for that, which allows us to\ndelete that separate flag. panthor_gem_debugfs_bo_rm() already checks\nwhether we've actually been added to the list or this is some error\npath cleanup.\n\nv2: Fix build issues for !CONFIG_DEBUGFS (Adrián)\n\nv3: Add linebreak and remove outdated comment (Liviu)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/panthor: Corrección de UAF en el código de debugfs de panthor_gem_create_with_handle(). Es posible que el objeto ya se haya eliminado después de drm_gem_object_put(). En general, el objeto debería estar completamente construido antes de llamar a drm_gem_handle_create(), excepto que el seguimiento de debugfs utiliza un bloqueo, una lista y un indicador independientes para indicar si el objeto se ha inicializado. Dado que estoy trabajando en todo esto, se simplifica añadiendo el objeto a debugfs solo cuando esté listo, lo que nos permite eliminar ese indicador. panthor_gem_debugfs_bo_rm() ya comprueba si se nos ha añadido a la lista o si se trata de una limpieza de la ruta de error. v2: Corrección de problemas de compilación para !CONFIG_DEBUGFS (Adrián). v3: Añadir salto de línea y eliminar comentario obsoleto (Liviu)."
    }
  ],
  "lastModified": "2026-07-30T06:23:29.623",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.16:*:*:*:*:*:*:*",
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