CVE-2026-52977

CVE-2026-52977 affects the Linux kernel futex subsystem, describing a race between wait-requeue-pi (task A) and requeue-PI (task B) that can cause a live lock on UP systems when a signal/timeout wakeup occurs. The race involves futex_wait_requeue_pi() -> futex_setup_timer() -> futex_do_wait...

AZL-68525 CVE-2025-39977 affecting package kernel for versions less than 6.6.112.1-1

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent use-after-free during requeue-PI syzbot managed to trigger the following race: T1 T2 futexwaitrequeuepi futexdowait schedule futexrequeue futexproxytrylockatomic futexrequeuepiprepare requeuepiwakefutex...

CVE-2025-39977 futex: Prevent use-after-free during requeue-PI

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent use-after-free during requeue-PI syzbot managed to trigger the following race: T1 T2 futexwaitrequeuepi futexdowait schedule futexrequeue futexproxytrylockatomic futexrequeuepiprepare requeuepiwakefutex...