Commit 8f4e8687c8f9 for kernel

commit 8f4e8687c8f9a3387f51cd534d80b383000d7776
Merge: feff82eb5f40 a39a7014825b
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri Apr 24 10:05:42 2026 -0700

    Merge tag 'x86-urgent-2026-04-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

    Pull x86 fixes from Ingo Molnar:

     - Prevent deadlock during shstk sigreturn (Rick Edgecombe)

     - Disable FRED when PTI is forced on (Dave Hansen)

     - Revert a CPA INVLPGB optimization that did not properly handle
       discontiguous virtual addresses (Dave Hansen)

    * tag 'x86-urgent-2026-04-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      x86/mm: Revert INVLPGB optimization for set_memory code
      x86/cpu: Disable FRED when PTI is forced on
      x86/shstk: Prevent deadlock during shstk sigreturn