CVE-2026-89521

A flaw was found in the Linux kernel's core scheduling component. This issue occurs when the picktask function releases the run queue rq lock, allowing an interleaving selection to invalidate the scheduler's internal state. This inconsistency can lead to incorrect task selection and skewed resour...

CVE-2026-89521

CVE-2026-89521 affects the Linux kernel scheduler (sched/core ). The vulnerability is in core scheduling's pick_next_task() : when a ->pick_task() implementation can release the rq lock, the selection state derived on entry becomes invalid. This can cause the single-CPU fast path to commit an ...

PT-2026-90237

In the Linux kernel, the following vulnerability has been resolved: sched/core: Handle pick task releasing the rq lock Core scheduling's pick next task breaks when a -pick task implementation can release the rq lock. The selection state derived on entry is only valid while the lock is held...