CVE-2025-21917 Information

Apr 03, 2025 cve

Description

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 �nable to handle kernel NULL pointer dereference at virtual address\nmay occur. This issue points to the usbhsc_notify_hotplug() function.

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

Reference

https://git.kernel.org/stable/c/3248c1f833f924246cb98ce7da4569133c1b2292 https://git.kernel.org/stable/c/394965f90454d6f00fe11879142b720c6c1a872e https://git.kernel.org/stable/c/4ca078084cdd5f32d533311d6a0b63a60dcadd41 https://git.kernel.org/stable/c/4cd847a7b630a85493d0294ad9542c21aafaa246 https://git.kernel.org/stable/c/552ca6b87e3778f3dd5b87842f95138162e16c82 https://git.kernel.org/stable/c/830818c8e70c0364e377f0c243b28061ef7967eb https://git.kernel.org/stable/c/d50f5c0cd949593eb9a3d822b34d7b50046a06b7 https://git.kernel.org/stable/c/e5aac1c9b2974636db7ce796ffa6de88fa08335e

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