Commit 673dab7eac16 for kernel

commit 673dab7eac1618b6622bbee9eb2aaa47817631e3
Merge: 5ccda18d1ba2 a0bb6fac53fa
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Sep 27 08:24:16 2026 -0700

    Merge tag 'sched-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

    Pull scheduler fixes from Ingo Molnar:

     - Fix LLC mis-scheduling bugs (Tim Chen, Lu Wang)

     - Fix cache-grouping related scheduling statistics UAF bugs (Tim Chen)

     - Skip kernel threads for cache aware scheduling to rubustify the code
       (Chen Yu)

     - Refresh LLC capacity across CPU hotplug, to fix capacity
       underestimation bug (Davi Chaves Azevedo)

     - Account PSI IRQ time to the execution context, not the scheduling
       context, to fix proxy scheduling accounting bug (Zhan Xusheng)

    * tag 'sched-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      sched/core: Account PSI IRQ time to the execution context, not the scheduling context
      sched/cache: Refresh LLC capacity across CPU hotplug, to fix capacity underestimation bug
      sched/cache: Skip kernel threads for cache aware scheduling to rubustify the code
      sched/cache: Introduce task_struct->sched_cache_grp to fix UAF
      sched/cache: Decouple sched_cache_group from mm to fix UAF
      sched/cache: Honor migrate_llc_task semantics in active load balance, to fix LLC mis-scheduling bug
      sched/cache: Keep nr_pref_llc_running in the runnable domain, to fix LLC mis-scheduling bug