CVE-2026-89519 sched_ext: Replace SCX_RQ_BAL_KEEP with a dispatch verdict return

In the Linux kernel, the following vulnerability has been resolved: schedext: Replace SCXRQBALKEEP with a dispatch verdict return SCXRQBALKEEP tells the pick to keep running the previous task, a leftover from when balancing and picking were separate operations. An rq-level flag only works while...

PT-2026-90235

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the sched ext component where the use of the SCX RQ BAL KEEP flag can lead to incorrect task execution. This occurs because the flag is set at the run-queue rq level,...