CVE-2026-23350

Estado: AnalizadaAlta (7.8)—

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

drm/xe/queue: Call fini on exec queue creation fail

Every call to queue init should have a corresponding fini call. Skipping this would mean skipping removal of the queue from GuC list (which is part of guc_id allocation). A damaged queue stored in exec_queue_lookup list would lead to invalid memory reference, sooner or later.

Call fini to free guc_id. This must be done before any internal LRCs are freed.

Since the finalization with this extra call became very similar to __xe_exec_queue_fini(), reuse that. To make this reuse possible, alter xe_lrc_put() so it can survive NULL parameters, like other similar functions.

Leer descripción completaMostrar menos

v2: Reuse _xe_exec_queue_fini(). Make xe_lrc_put() aware of NULLs.

(cherry picked from commit 393e5fea6f7d7054abc2c3d97a4cfe8306cd6079)

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: 0.13%
Percentil entre todas las CVEs puntuadas: 2
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 escalation75 %
Impacto principalT1499 Endpoint Denial of Serviceimpact65 %
Impacto secundarioT1005 Data from Local Systemcollection50 %

Vulnerabilidad local (AV:L, PR:L) que permite escalada mediante corrupción de memoria en gestión de colas de GPU; DoS por crash y potencial lectura de memoria no inicializada.

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

Threat Intelligence Program Filter Network Traffic Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-401

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/queue: Call fini on exec queue creation fail\n\nEvery call to queue init should have a corresponding fini call.\nSkipping this would mean skipping removal of the queue from GuC list\n(which is part of guc_id allocation). A damaged queue stored in\nexec_queue_lookup list would lead to invalid memory reference,\nsooner or later.\n\nCall fini to free guc_id. This must be done before any internal\nLRCs are freed.\n\nSince the finalization with this extra call became very similar to\n__xe_exec_queue_fini(), reuse that. To make this reuse possible,\nalter xe_lrc_put() so it can survive NULL parameters, like other\nsimilar functions.\n\nv2: Reuse _xe_exec_queue_fini(). Make xe_lrc_put() aware of NULLs.\n\n(cherry picked from commit 393e5fea6f7d7054abc2c3d97a4cfe8306cd6079)"
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      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/xe/queue: Llamar a fini al fallar la creación de la cola de ejecución\n\nCada llamada a init de cola debería tener una llamada a fini correspondiente. Omitir esto significaría omitir la eliminación de la cola de la lista GuC (lo cual es parte de la asignación de guc_id). Una cola dañada almacenada en la lista exec_queue_lookup conduciría a una referencia de memoria inválida, tarde o temprano.\n\nLlamar a fini para liberar guc_id. Esto debe hacerse antes de que se liberen cualesquiera LRCs internos.\n\nDado que la finalización con esta llamada extra se volvió muy similar a __xe_exec_queue_fini(), reutilizar eso. Para hacer posible esta reutilización, modificar xe_lrc_put() para que pueda sobrevivir a parámetros NULL, como otras funciones similares.\n\nv2: Reutilizar _xe_exec_queue_fini(). Hacer que xe_lrc_put() sea consciente de los NULLs.\n\n(extraído de la confirmación 393e5fea6f7d7054abc2c3d97a4cfe8306cd6079)"
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