CVE-2026-68421

The CVE-2026-68421 entry concerns the Linux kernel sched_ext path. The issue arises when put_prev_task_scx() warns about a runnable task dropping to a lower sched_class without ENQ_LAST, due to core scheduling forcing idle via an SMT sibling’s core_pick path which bypasses balance_one(). The miti...

CVE-2026-68094

CVE-2026-68094 affects the Linux kernel’s scheduler extension logic for dispatching tasks to a local dis-queued service queue (DSQ). The vulnerability arises when dispatch_to_local_dsq() executes from scx_bpf_dsq_move_to_local() while ops.dispatch() has recorded the current rq, potentially switch...

CVE-2026-64226

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...

Linux Distros Unpatched Vulnerability : CVE-2026-64226

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn,...

SUSE CVE-2026-64226

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...

DEBIAN-CVE-2026-64226

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...

CVE-2026-64226

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...

UBUNTU-CVE-2026-53328

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't warn on NULL cgrpmovingfrom in scxcgroupmovetask A WARN fires when systemd's user manager writes "+cpu +memory +pids" to its own subtreecontrol while a schedext scheduler is loaded: WARNING: at...

PT-2026-54796

In the Linux kernel, the following vulnerability has been resolved: sched ext: Don't warn on NULL cgrp moving from in scx cgroup move task A WARN fires when systemd's user manager writes "+cpu +memory +pids" to its own subtree control while a sched ext scheduler is loaded: WARNING: at...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: schedext: Reading scxroot under scxcgroupopsrwsem in the cgroup setters. The scxgroupsetweight,idle,bandwidth function caches scxroot before acquiring scxcgroupopsrwsem. As a result, the pointer may become stale by the time th...

SUSE CVE-2026-46154

In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupopsrwsem in cgroup setters scxgroupsetweight,idle,bandwidth cache scxroot before acquiring scxcgroupopsrwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is...

CVE-2026-46154

A flaw was found in the Linux kernel, specifically within the schedext component. This vulnerability, a use-after-free, occurs in the cgroup setters when the scxroot pointer is cached before a required lock is acquired. This can lead to a stale pointer if a scheduler is disabled and then...

CVE-2026-46154

In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupopsrwsem in cgroup setters scxgroupsetweight,idle,bandwidth cache scxroot before acquiring scxcgroupopsrwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is...

UBUNTU-CVE-2026-46154

In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupopsrwsem in cgroup setters scxgroupsetweight,idle,bandwidth cache scxroot before acquiring scxcgroupopsrwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is...

EUVD-2026-32781

In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupopsrwsem in cgroup setters scxgroupsetweight,idle,bandwidth cache scxroot before acquiring scxcgroupopsrwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is...

CVE-2026-46154 sched_ext: Read scx_root under scx_cgroup_ops_rwsem in cgroup setters

In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupopsrwsem in cgroup setters scxgroupsetweight,idle,bandwidth cache scxroot before acquiring scxcgroupopsrwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is...

CVE-2026-46154

In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupopsrwsem in cgroup setters scxgroupsetweight,idle,bandwidth cache scxroot before acquiring scxcgroupopsrwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is...

CVE-2026-46154

In the Linux kernel, the following vulnerability has been resolved: schedext: Read scxroot under scxcgroupopsrwsem in cgroup setters scxgroupsetweight,idle,bandwidth cache scxroot before acquiring scxcgroupopsrwsem, so the pointer can be stale by the time the op runs. If the loaded scheduler is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: schedext: The issue of starving the scxenable function under fair-class saturation has been fixed. During scxenable, the READY - ENABLED task switching loop changes the calling thread’s schedclass from fair to ext. Since fair has...

Astra Linux – Vulnerability in Linux 5.10

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