CVE-2025-37854

Estado: ModificadaAlta (7.8)—

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

drm/amdkfd: Fix mode1 reset crash issue

If HW scheduler hangs and mode1 reset is used to recover GPU, KFD signal user space to abort the processes. After process abort exit, user queues still use the GPU to access system memory before h/w is reset while KFD cleanup worker free system memory and free VRAM.

There is use-after-free race bug that KFD allocate and reuse the freed system memory, and user queue write to the same system memory to corrupt the data structure and cause driver crash.

To fix this race, KFD cleanup worker terminate user queues, then flush reset_domain wq to wait for any GPU ongoing reset complete, and then free outstanding BOs.

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: 0.27%
Percentil entre todas las CVEs puntuadas: 17
Fecha de la puntuación: 6/10/2026

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 %

Acceso local (AV:L) sin interacción del usuario. CWE-416 (use-after-free) permite al atacante local ejecutar código arbitrario o causar DoS mediante race condition en el kernel de Linux al manipular la memoria liberada durante reset de GPU.

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 (2)

Debian — Debian Linux Linux — Linux Kernel

CWE

CWE-416

Referencias

JSON original (NVD)

Mostrar

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix mode1 reset crash issue\n\nIf HW scheduler hangs and mode1 reset is used to recover GPU, KFD signal\nuser space to abort the processes. After process abort exit, user queues\nstill use the GPU to access system memory before h/w is reset while KFD\ncleanup worker free system memory and free VRAM.\n\nThere is use-after-free race bug that KFD allocate and reuse the freed\nsystem memory, and user queue write to the same system memory to corrupt\nthe data structure and cause driver crash.\n\nTo fix this race, KFD cleanup worker terminate user queues, then flush\nreset_domain wq to wait for any GPU ongoing reset complete, and then\nfree outstanding BOs."
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    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdkfd: Se soluciona el problema de bloqueo del reinicio en modo 1. Si el programador de hardware se bloquea y se usa el reinicio en modo 1 para recuperar la GPU, KFD indica al espacio de usuario que cancele los procesos. Tras la salida del proceso, las colas de usuario siguen usando la GPU para acceder a la memoria del sistema antes de que se restablezca el hardware mientras el trabajador de limpieza de KFD libera memoria del sistema y VRAM. Existe un error de ejecución de use-after-free en el que KFD asigna y reutiliza la memoria del sistema liberada, y la cola de usuario escribe en la misma memoria del sistema para corromper la estructura de datos y provocar el bloqueo del controlador. Para solucionar esta carrera, el trabajador de limpieza de KFD finaliza las colas de usuario, luego vacía reset_domain wq para esperar a que se complete cualquier reinicio en curso de la GPU y, a continuación, libera los BO pendientes. "
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