CVE-2022-49488

Estado: AnalizadaMedia (5.5)—

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

drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected

There is a possibility for mdp5_get_global_state to return -EDEADLK when acquiring the modeset lock, but currently global_state in mdp5_mixer_release doesn't check for if an error is returned.

To avoid a NULL dereference error, let's have mdp5_mixer_release check if an error is returned and propagate that error.

Patchwork: https://patchwork.freedesktop.org/patch/485181/

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5

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).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-476

Referencias

JSON original (NVD)

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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected\n\nThere is a possibility for mdp5_get_global_state to return\n-EDEADLK when acquiring the modeset lock, but currently global_state in\nmdp5_mixer_release doesn't check for if an error is returned.\n\nTo avoid a NULL dereference error, let's have mdp5_mixer_release\ncheck if an error is returned and propagate that error.\n\nPatchwork: https://patchwork.freedesktop.org/patch/485181/"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/mdp5: Devuelve un código de error en mdp5_mixer_release cuando se detecta un bloqueo Existe la posibilidad de que mdp5_get_global_state devuelva -EDEADLK al adquirir el bloqueo de modeset, pero actualmente global_state en mdp5_mixer_release no comprueba si se devuelve un error. Para evitar un error de desreferencia NULL, hagamos que mdp5_mixer_release compruebe si se devuelve un error y propague ese error. Patchwork: https://patchwork.freedesktop.org/patch/485181/"
    }
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