VYPR
← All advisories
Medium severity5.5NVD Advisory· Published May 27, 2026· Updated Oct 15, 2026

CVE-2026-46021

CVE-2026-46021

Description

In the Linux kernel, the following vulnerability has been resolved:

thermal: core: Fix thermal zone governor cleanup issues

If thermal_zone_device_register_with_trips() fails after adding a thermal governor to the thermal zone being registered, the governor is not removed from it as appropriate which may lead to a memory leak.

In turn, thermal_zone_device_unregister() calls thermal_set_governor() without acquiring the thermal zone lock beforehand which may race with a governor update via sysfs and may lead to a use-after-free in that case.

Address these issues by adding two thermal_set_governor() calls, one to thermal_release() to remove the governor from the given thermal zone, and one to the thermal zone registration error path to cover failures preceding the thermal zone device registration.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

136

Patches

Vulnerability mechanics

References

11

News mentions

0

No linked articles in our index yet.