CVE-2026-43426

HIGH

usb: renesas_usbhs: fix use-after-free in ISR during device removal

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: fix use-after-free in ISR during device removal In usbhs_remove(), the driver frees resources (including the pipe array) while the interrupt handler (usbhs_interrupt) is still registered. If an interrupt fires after usbhs_pipe_remove() but before the driver is fully unbound, the ISR may access freed memory, causing a use-after-free. Fix this by calling devm_free_irq() before freeing resources. This ensures the interrupt handler is both disabled and synchronized (waits for any running ISR to complete) before usbhs_pipe_remove() is called.

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (20)
Linux/Linux < 3.0
Linux/Linux 3.0
Linux/Linux 5.10.253 - 5.10.*
Linux/Linux 5.15.203 - 5.15.*
Linux/Linux 6.1.167 - 6.1.*
Linux/Linux 6.12.78 - 6.12.*
Linux/Linux 6.18.19 - 6.18.*
Linux/Linux 6.19.9 - 6.19.*
Linux/Linux 6.6.130 - 6.6.*
Linux/Linux 7.0
... and 10 more
Published May 08, 2026
Tracked Since May 08, 2026