CVE-2025-39780: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: sched/ext: Fix invalid task state transitions on class switch When enabling a schedext scheduler, we may trigger invalid task state transitions, resulting in warnings like the following which can be easily reproduced by running t...

PT-2025-37237

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw exists in the Linux kernel related to invalid task state transitions when using the sched ext scheduler. This issue occurs because initialization is skipped for tasks that are...

CVE-2025-38522: NULL Pointer Dereference

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...

UBUNTU-CVE-2025-38012

In the Linux kernel, the following vulnerability has been resolved: schedext: bpfiterscxdsqnew should always initialize iterator BPF programs may call next and destroy on BPF iterators even after new returns an error value e.g. bpfforeach macro ignores error returns from new. bpfiterscxdsqnew cou...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: schedext: Corrected incorrect autogroup migration detection. The function scxmovetask is called from schedmovetask, and it informs the BPF scheduler that cgroup migration is being performed. schedmovetask is used for both cgroup...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: schedext: Fixed an issue where picktaskscx picks non-queued tasks when it is called without balance being performed first. a6250aa251ea “schedext”: Added a workaround for cases where picktaskscx is called without preceding...

DEBIAN-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...

UBUNTU-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-2025-21657

In the Linux kernel, the following vulnerability has been resolved: schedext: Replace rqlock to rawspinrqlock in scxopsbypass scxopsbypass iterates all CPUs to re-enqueue all the scx tasks. For each CPU, it acquires a lock using rqlock regardless of whether a CPU is offline or the CPU is currentl...

DEBIAN-CVE-2025-21657

In the Linux kernel, the following vulnerability has been resolved: schedext: Replace rqlock to rawspinrqlock in scxopsbypass scxopsbypass iterates all CPUs to re-enqueue all the scx tasks. For each CPU, it acquires a lock using rqlock regardless of whether a CPU is offline or the CPU is currentl...

UBUNTU-CVE-2025-21657

In the Linux kernel, the following vulnerability has been resolved: schedext: Replace rqlock to rawspinrqlock in scxopsbypass scxopsbypass iterates all CPUs to re-enqueue all the scx tasks. For each CPU, it acquires a lock using rqlock regardless of whether a CPU is offline or the CPU is currentl...

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. Linux kernel has a security vulnerability that stems from the use of an inappropriate lock in the scxopsbypass function in the schedext module. This could lead to unwanted...

SUSE CVE-2024-57891

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix invalid irq restore in scxopsbypass While adding outer irqsave/restore locking, 0e7ffff1b811 "scx: Fix raciness in scxopsbypass" forgot to convert an inner rqunlockirqrestore to rqunlock which could re-enable IRQ...

DEBIAN-CVE-2024-57891

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix invalid irq restore in scxopsbypass While adding outer irqsave/restore locking, 0e7ffff1b811 "scx: Fix raciness in scxopsbypass" forgot to convert an inner rqunlockirqrestore to rqunlock which could re-enable IRQ...

PT-2025-3616 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability has been resolved in the Linux kernel related to the sched ext component, specifically in the scx ops bypass function. The issue arises from the addition of outer...