CVE-2026-89516

A flaw was found in the Linux kernel's schedext component. When a Deferred Scheduling Queue DSQ is destroyed, a pending deferred re-enqueue DRU operation might still attempt to access the destroyed DSQ. This can lead to a BUGON condition, causing a kernel panic and resulting in a Denial of Servic...

CVE-2026-89516

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't BUGON a destroyed DSQ in processdeferredreenqusers scxbpfdsqreenq queues a deferred reenq dru that runs from rundeferred, not ops.dispatch. If the DSQ is destroyed before the dru runs, processdeferredreenqusers se...

CVE-2026-89516 sched_ext: Don't BUG_ON a destroyed DSQ in process_deferred_reenq_users

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't BUGON a destroyed DSQ in processdeferredreenqusers scxbpfdsqreenq queues a deferred reenq dru that runs from rundeferred, not ops.dispatch. If the DSQ is destroyed before the dru runs, processdeferredreenqusers se...