CVE-2026-74731

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

EUVD-2026-64418

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

CVE-2026-74731

CVE-2026-74731 is a use-after-free vulnerability in the Linux kernel's sched_ext sub-scheduler subsystem. When a sub-scheduler enable fails before scx_link_sched() links it into the hierarchy, the cleanup path still runs the full scx_sub_disable(). Because drain_descendants() is the only ordering...

CVE-2026-74731 sched_ext: Skip sub-disable teardown for never-linked sub-schedulers

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

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...