PT-2026-79736

In the Linux kernel, the following vulnerability has been resolved: sched ext: Skip sub-disable teardown for never-linked sub-schedulers A sub-scheduler enable can fail before scx link sched links the sched into the hierarchy, e.g. when the parent is already being disabled, and cleanup still runs...

PT-2026-79598

In the Linux kernel, the following vulnerability has been resolved: sched ext: Take cgroup lock first in scx cgroup lock scx cgroup lock write-locks scx cgroup ops rwsem and then takes cgroup lock, which can deadlock through kernfs: scx enable/disable cgroup rmdir cpu.weight write...

CVE-2026-68421

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't warn on core-sched forced idle in putprevtaskscx putprevtaskscx warns when a runnable task drops to a lower schedclass without SCXOPSENQLAST, on the assumption that balanceone would have kept it running. Core...

CVE-2026-68094

In the Linux kernel, the following vulnerability has been resolved: schedext: Preserve rq tracking across local DSQ dispatch dispatchtolocaldsq can run from scxbpfdsqmovetolocal while ops.dispatch has recorded the current rq. Moving a task to a local DSQ may switch to the source or destination rq...

EUVD-2026-55607

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't warn on core-sched forced idle in putprevtaskscx putprevtaskscx warns when a runnable task drops to a lower schedclass without SCXOPSENQLAST, on the assumption that balanceone would have kept it running. Core...

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...

EUVD-2026-55475

In the Linux kernel, the following vulnerability has been resolved: schedext: Preserve rq tracking across local DSQ dispatch dispatchtolocaldsq can run from scxbpfdsqmovetolocal while ops.dispatch has recorded the current rq. Moving a task to a local DSQ may switch to the source or destination rq...

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,...

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...

EUVD-2026-48634

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-2026-53328

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

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...

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...

CVE-2026-53328 sched_ext: Don't warn on NULL cgrp_moving_from in scx_cgroup_move_task()

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...

EUVD-2026-40962

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...

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...

The vulnerability of the `init_sched_ext_class()` function in the kernel/sched/ext.c module, which is part of the Linux operating system’s resource management support, allows a hacker to cause a service failure.

The vulnerability of the initschedextclass function in the kernel/sched/ext.c module, which is part of the Linux kernel’s resource management system, relates to improper initialization of resources. Exploiting this vulnerability could allow an attacker to cause a service failure...

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...