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CVE-2025-37869

Estado: ModificadaAlta (7.8)—

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

drm/xe: Use local fence in error path of xe_migrate_clear

The intent of the error path in xe_migrate_clear is to wait on locally generated fence and then return. The code is waiting on m->fence which could be the local fence but this is only stable under the job mutex leading to a possible UAF. Fix code to wait on local fence.

(cherry picked from commit 762b7e95362170b3e13a8704f38d5e47eca4ba74)

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).

🎯 Técnicas ATT&CK

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

Vulnerabilidad local (AV:L, PR:L) de UAF en controlador DRM/Xe del kernel Linux que permite escalada de privilegios (C:H, I:H, A:H) y potencial ejecución de código arbitrario.

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 PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationBehavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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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/xe: Use local fence in error path of xe_migrate_clear\n\nThe intent of the error path in xe_migrate_clear is to wait on locally\ngenerated fence and then return. The code is waiting on m->fence which\ncould be the local fence but this is only stable under the job mutex\nleading to a possible UAF. Fix code to wait on local fence.\n\n(cherry picked from commit 762b7e95362170b3e13a8704f38d5e47eca4ba74)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe: Uso de una valla local en la ruta de error de xe_migrate_clear. La ruta de error en xe_migrate_clear espera en la valla generada localmente y luego regresa. El código espera en m->fence, que podría ser la valla local, pero esto solo es estable bajo el mutex de trabajo, lo que podría provocar un UAF. Se corrige el código para que espere en la valla local. (Seleccionado de la confirmación 762b7e95362170b3e13a8704f38d5e47eca4ba74)"
    }
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  "lastModified": "2026-07-30T06:22:24.490",
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