CVE-2025-37861

Estado: ModificadaAlta (7.8)—

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

scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue

When the task management thread processes reply queues while the reset thread resets them, the task management thread accesses an invalid queue ID (0xFFFF), set by the reset thread, which points to unallocated memory, causing a crash.

Add flag 'io_admin_reset_sync' to synchronize access between the reset, I/O, and admin threads. Before a reset, the reset handler sets this flag to block I/O and admin processing threads. If any thread bypasses the initial check, the reset thread waits up to 10 seconds for processing to finish. If the wait exceeds 10 seconds, the controller is marked as unrecoverable.

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: 0.29%
Percentil entre todas las CVEs puntuadas: 20
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 principalT1499.004 Application or System Exploitationimpact75 %

Acceso local (AV:L) sin interacción (UI:N) con privilegios (PR:L) provoca crash por race condition en kernel, negando disponibilidad del sistema.

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-416

Referencias

JSON original (NVD)

Mostrar

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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue\n\nWhen the task management thread processes reply queues while the reset\nthread resets them, the task management thread accesses an invalid queue ID\n(0xFFFF), set by the reset thread, which points to unallocated memory,\ncausing a crash.\n\nAdd flag 'io_admin_reset_sync' to synchronize access between the reset,\nI/O, and admin threads. Before a reset, the reset handler sets this flag to\nblock I/O and admin processing threads. If any thread bypasses the initial\ncheck, the reset thread waits up to 10 seconds for processing to finish. If\nthe wait exceeds 10 seconds, the controller is marked as unrecoverable."
    },
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: mpi3mr: Acceso síncrono entre los subprocesos de reinicio y tm para la cola de respuestas. Cuando el subproceso de gestión de tareas procesa las colas de respuestas mientras el subproceso de reinicio las reinicia, este último accede a un ID de cola no válido (0xFFFF), establecido por el subproceso de reinicio, que apunta a memoria no asignada, lo que provoca un fallo. Se ha añadido el indicador «io_admin_reset_sync» para sincronizar el acceso entre los subprocesos de reinicio, E/S y administración. Antes de un reinicio, el controlador de reinicio establece este indicador para bloquear los subprocesos de procesamiento de E/S y administración. Si algún subproceso omite la comprobación inicial, el subproceso de reinicio espera hasta 10 segundos a que finalice el procesamiento. Si la espera supera los 10 segundos, el controlador se marca como irrecuperable."
    }
  ],
  "lastModified": "2026-07-30T06:22:24.280",
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