CVE-2026-53126

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A disk reference leak occurs in the blkcg maybe throttle current() function. When blkcg lookup, blkg lookup, or blkg tryget() fails, the function fails to call put disk() on the error path. This prevents the release of the disk reference acquired by blkcg schedule throttle() via get device(). Because current->throttle disk is set to NULL before the lookup, blkcg exit() cannot release the reference, resulting in the disk never being freed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.