CVE-2026-98864

A flaw was found in the Linux kernel's extensible scheduler (sched_ext) subsystem. A race condition occurs when a task is re-enqueued before a prior dispatch operation has completed, allowing internal scheduling states to be improperly overwritten. A local user could trigger this flaw to cause subsequent task dispatches to be dropped, leading to stalled processes and a denial of service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.