CVE-2026-53166

A flaw was found in the Linux kernel's futex Fast Userspace Mutex requeue mechanism. When a non-top waiter attempts to requeue a Priority Inheritance PI futex it already owns, a NULL pointer dereference can occur. This issue, specifically within the removewaiter function during a self-deadlock...

SUSE CVE-2026-53166

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2026-53166

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

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-2026-52977

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup During wait-requeue-pi task A and requeue-PI task B the following race can happen: Task A Task B futexwaitrequeuepi futexsetuptimer futexdowait futexrequeue CLASSh...

CVE-2026-52977

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup During wait-requeue-pi task A and requeue-PI task B the following race can happen: Task A Task B futexwaitrequeuepi futexsetuptimer futexdowait futexrequeue CLASSh...

CVE-2026-52977

Concretely, CVE-2026-52977 affects the Linux kernel futex subsystem, specifically a race between wait-requeue-pi and requeue-PI that could cause a live lock on certain scheduling orders (notably UP). The issue arises when top waiters are handled while a signaled/timeout waiter is removing itself ...

futex: Clear stale exiting pointer in futex_lock_pi() retry path

...

CVE-2026-31555

In the Linux kernel, the following vulnerability has been resolved: futex: Clear stale exiting pointer in futexlockpi retry path Fuzzying/stressing futexes triggered: WARNING: kernel/futex/core.c:825 at waitforownerexiting+0x7a/0x80, CPU11: futexlockpis/524 When futexlockpiatomic sees the owner i...

SUSE CVE-2026-23371

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

EUVD-2026-15357

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

CVE-2026-23371

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

CVE-2026-23371

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

CVE-2026-23371

CVE-2026-23371 (Linux kernel SCHED_DEADLINE) details (from provided docs): The vulnerability arose when a SCHED_DEADLINE task (often a lock holder) moved to a lower class via sched_setscheduler() and failed to inherit the donor DEADLINE parameters, risking bandwidth accounting corruption because ...

CVE-2026-23371 sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

PT-2026-27736

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s scheduling logic related to SCHED DEADLINE tasks. Specifically, when a SCHED DEADLINE task changes to a lower priority class using sched setscheduler,...

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...

EUVD-2010-0653

Malware in sbrugna...

Linux Distros Unpatched Vulnerability : CVE-2021-3347

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execut...