CVE-2025-38630
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
fbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref
fb_add_videomode() can fail with -ENOMEM when its internal kmalloc() cannot allocate a struct fb_modelist. If that happens, the modelist stays empty but the driver continues to register. Add a check for its return value to prevent poteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 ("fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var").
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: 0.17%
- Percentil entre todas las CVEs puntuadas: 5
- 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 (2)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/40f0a51f6c54d46a94b9f1180339ede7ca7ee190
- https://git.kernel.org/stable/c/49377bac9e3bec1635065a033c9679214fe7593e
- https://git.kernel.org/stable/c/4b5d36cc3014986e6fac12eaa8433fe56801d4ce
- https://git.kernel.org/stable/c/69373502c2b5d364842c702c941d1171e4f35a7c
- https://git.kernel.org/stable/c/ac16154cccda8be10ee3ae188f10a06f3890bc5d
- https://git.kernel.org/stable/c/cca8f5a3991916729b39d797d01499c335137319
- https://git.kernel.org/stable/c/da11e6a30e0bb8e911288bdc443b3dc8f6a7cac7
- https://git.kernel.org/stable/c/f00c29e6755ead56baf2a9c1d3c4c0bb40af3612
- https://git.kernel.org/stable/c/f060441c153495750804133555cf0a211a856892
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref\n\nfb_add_videomode() can fail with -ENOMEM when its internal kmalloc() cannot\nallocate a struct fb_modelist. If that happens, the modelist stays empty but\nthe driver continues to register. Add a check for its return value to prevent\npoteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 (\"fbdev:\nFix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var\")."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fbdev: imxfb: Comprobar fb_add_videomode para evitar la desreferencia de PTR nula. fb_add_videomode() puede fallar con -ENOMEM cuando su función interna kmalloc() no puede asignar una estructura fb_modelist. En tal caso, la estructura de modelist permanece vacía, pero el controlador continúa registrándose. Se ha añadido una comprobación de su valor de retorno para evitar una posible desreferencia de PTR nula, similar al commit 17186f1f90d3 (\"fbdev: Corregir do_register_framebuffer para evitar la desreferencia de PTR nula en fb_videomode_to_var\")."
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