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CVE-2025-21917

Estado: ModificadaMedia (5.5)—

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

usb: renesas_usbhs: Flush the notify_hotplug_work

When performing continuous unbind/bind operations on the USB drivers available on the Renesas RZ/G2L SoC, a kernel crash with the message "Unable to handle kernel NULL pointer dereference at virtual address" may occur. This issue points to the usbhsc_notify_hotplug() function.

Flush the delayed work to avoid its execution when driver resources are unavailable.

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)

Mostrar
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: renesas_usbhs: Borrar la función notify_hotplug_work. Al realizar operaciones continuas de desvinculación/vinculación en los controladores USB disponibles en el SoC Renesas RZ/G2L, puede producirse un fallo del kernel con el mensaje \"No se puede gestionar la desreferencia del puntero nulo del kernel en la dirección virtual\". Este problema afecta a la función usbhsc_notify_hotplug(). Borre la función retrasada para evitar su ejecución cuando los recursos del controlador no estén disponibles."
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