EUVD-2026-30018

In the Linux kernel, the following vulnerability has been resolved: schedext: Disable preemption between scxclaimexit and kicking helper work scxclaimexit atomically sets exitkind, which prevents scxerror from triggering further error handling. After claiming exit, the caller must kick the helper...

CVE-2026-43482

A flaw was found in the Linux kernel's schedext component. If a task is preempted between the scxclaimexit function and the subsequent helper work activation, and the BPF Berkeley Packet Filter scheduler fails to reschedule it, the system can become unresponsive. This can lead to a denial of...

SUSE CVE-2026-43392

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix starvation of scxenable under fair-class saturation During scxenable, the READY - ENABLED task switching loop changes the calling thread's schedclass from fair to ext. Since fair has higher priority than ext,...

CVE-2026-43326

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix SCXKICKWAIT deadlock by deferring wait to balance callback SCXKICKWAIT busy-waits in kickcpusirqworkfn using smpcondloadacquire until the target CPU's kicksync advances. Because the irqwork runs in hardirq context,...

SUSE CVE-2026-31734

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix isbpfmigrationdisabled false negative on non-PREEMPTRCU Since commit 8e4f0b1ebcf2 "bpf: use rcureadlockdontmigrate for trampoline.c", the BPF prolog bpfprogenter calls migratedisable only when CONFIGPREEMPTRCU is...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: sched/ext: Fixed invalid task state transitions during class switching. When enabling the schedext scheduler, it is possible to trigger invalid task state transitions, resulting in warnings like the following which can be easily...

CVE-2025-40260

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix scxenable crash on helper kthread creation failure A crash was observed when the schedext selftests runner was terminated with Ctrl+\ while test 15 was running: NIP c00000000028fa58 scxenable.constprop.0+0x358/0x12b...

PT-2025-49090

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A crash could occur in the scx enable function when a helper kthread creation failed. This was observed during termination of the sched ext selftests runner with Ctrl+ while test 15 was...

CVE-2025-38522

In the Linux kernel, the following vulnerability has been resolved: sched/ext: Prevent updatelockedrq calls with NULL rq Avoid invoking updatelockedrq when the runqueue rq pointer is NULL in the SCXCALLOP and SCXCALLOPRET macros. Previously, calling updatelockedrqNULL with preemption enabled coul...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from sched/ext calling updatelockedrq when rq is empty, which could result in a preemption warning...

SUSE CVE-2025-21897

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix picktaskscx picking non-queued tasks when it's called without balance a6250aa251ea "schedext: Handle cases where picktaskscx is called without preceding balancescx" added a workaround to handle the cases where...

SUSE CVE-2025-21771

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix incorrect autogroup migration detection scxmovetask is called from schedmovetask and tells the BPF scheduler that cgroup migration is being committed. schedmovetask is used by both cgroup and autogroup migrations an...