CVE-2025-21917

usb: renesas_usbhs: Flush the notify_hotplug_work

Medium · published April 1, 2025

CVSS v3.1
5.5
EPSS
0%
Percentile
15.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00249 · 15.3th percentile
Published
2025-04-01T15:40Z
EPSS history
Timeline
  • 01 APR 15:40Z
    usb: renesas_usbhs: Flush the notify_hotplug_work
    cvelistv5