CVE-2026-90325

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

Description A race condition exists in the blkcg activate policy() function when switching IO schedulers on a block device. This occurs when the function races with a concurrent blkcg deletion, which can lead to a use-after-free (a situation where a program continues to use a pointer after it has been freed) in rcu accelerate cbs.

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