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CVE-2024-56540

Estado: ModificadaMedia (4.7)—

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

accel/ivpu: Prevent recovery invocation during probe and resume

Refactor IPC send and receive functions to allow correct handling of operations that should not trigger a recovery process.

Expose ivpu_send_receive_internal(), which is now utilized by the D0i3 entry, DCT initialization, and HWS initialization functions. These functions have been modified to return error codes gracefully, rather than initiating recovery.

The updated functions are invoked within ivpu_probe() and ivpu_resume(), ensuring that any errors encountered during these stages result in a proper teardown or shutdown sequence.

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The previous approach of triggering recovery within these functions could lead to a race condition, potentially causing undefined behavior and kernel crashes due to null pointer dereferences.

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).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ivpu: Prevent recovery invocation during probe and resume\n\nRefactor IPC send and receive functions to allow correct\nhandling of operations that should not trigger a recovery process.\n\nExpose ivpu_send_receive_internal(), which is now utilized by the D0i3\nentry, DCT initialization, and HWS initialization functions.\nThese functions have been modified to return error codes gracefully,\nrather than initiating recovery.\n\nThe updated functions are invoked within ivpu_probe() and ivpu_resume(),\nensuring that any errors encountered during these stages result in a proper\nteardown or shutdown sequence. The previous approach of triggering recovery\nwithin these functions could lead to a race condition, potentially causing\nundefined behavior and kernel crashes due to null pointer dereferences."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: accel/ivpu: Evitar la invocación de recuperación durante la sonda y reanudación Refactorizar las funciones de envío y recepción de IPC para permitir la gestión correcta de operaciones que no deberían activar un proceso de recuperación. Exponer ivpu_send_receive_internal(), que ahora es utilizado por la entrada D0i3, la inicialización de DCT y las funciones de inicialización de HWS. Estas funciones se han modificado para devolver códigos de error de forma elegante, en lugar de iniciar la recuperación. Las funciones actualizadas se invocan dentro de ivpu_probe() e ivpu_resume(), lo que garantiza que cualquier error encontrado durante estas etapas dé como resultado una secuencia de desmontaje o apagado adecuada. El enfoque anterior de activar la recuperación dentro de estas funciones podría conducir a una condición de ejecución, lo que podría causar un comportamiento indefinido y fallas del kernel debido a desreferencias de puntero nulo."
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