Incomplete cleanup in Linux kernel - CVE-2026-90311
Published: September 18, 2026
Vulnerability identifier: #VU151178
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90311
CWE-ID: CWE-459
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource cleanup in thermal_remove_hwmon_sysfs when removing a thermal zone that hosts a shared hwmon class device. A local user can trigger removal of the thermal zone to cause a denial of service.
The shared hwmon interface can contain sysfs attributes associated with other thermal zones of the same type.
Affected software
Linux kernel
How to mitigate CVE-2026-90311
Install security update from vendor's repository.