CVE-2026-43426
HIGHusb: renesas_usbhs: fix use-after-free in ISR during device removal
Title source: cnaDescription
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.
References (8)
Core 8
Core References
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