Use-after-free in Linux kernel - CVE-2026-89464
Published: September 12, 2026
Vulnerability identifier: #VU149345
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89464
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a use-after-free condition.
The vulnerability exists due to use-after-free in the twl4030_charger driver's bci work handlers when removing the device while a worker is pending. A local user can trigger device removal while a worker is pending to cause a use-after-free condition.
The USB transceiver notifier can reschedule work after device removal returns.
Affected software
Linux kernel
How to mitigate CVE-2026-89464
Install security update from vendor's repository.