CVE-2025-21897

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

Description A vulnerability in the Linux kernel has been resolved, related to the pick task scx() function picking non-queued tasks when called without balance(). The issue arises from a fair class bug where pick taks fair() may return NULL after a true return from balance fair(). This could lead to a non-runnable task being returned, causing failures and potential deadlocks. The estimated number of potentially affected devices worldwide is not available.

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