EUVD-2026-39257

In the Linux kernel, the following vulnerability has been resolved: futex/requeue: Prevent NULL pointer dereference in removewaiter on self-deadlock When FUTEXCMPREQUEUEPI requeues a non-top waiter that already owns the target PI futex, taskblocksonrtmutex returns -EDEADLK before setting...

CVE-2026-43499

The CVE-2026-43499 issue concerns the Linux kernel rtmutex path where remove_waiter() operated on current during dequeue in rt_mutex_start_proxy_lock() via futex_requeue(). This caused: (1) rbtree dequeue without waiter::task::pi_lock, (2) waiter task pi_blocked_on not cleared (dangling pointer, ...