tree 8e0f3226f923684b25d41921bab4ff2cec3090db
parent ea82593bad9a77f6f14c9701c13ff7368b22f027
parent 59f5ede3bc0f00eb856425f636dab0c10feb06d8
author Linus Torvalds <torvalds@linux-foundation.org> 1652034114 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1652034114 -0700
mergetag object 59f5ede3bc0f00eb856425f636dab0c10feb06d8
 type commit
 tag x86-urgent-2022-05-08
 tagger Thomas Gleixner <tglx@linutronix.de> 1652011453 +0200
 
 A fix and an email address update:
 
  - Prevent FPU state corruption. The condition in irq_fpu_usable() grants
    FPU usage when the FPU is not used in the kernel. That's just wrong as
    it does not take the fpregs_lock()'ed regions into account. If FPU usage
    happens within such a region from interrupt context, then the FPU state
    gets corrupted. That's a long standing bug, which got unearthed by the
    recent changes to the random code.
 
  - Josh wants to use his kernel.org email address
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Merge tag 'x86-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Thomas Gleixner:
 "A fix and an email address update:

   - Prevent FPU state corruption.

     The condition in irq_fpu_usable() grants FPU usage when the FPU is
     not used in the kernel. That's just wrong as it does not take the
     fpregs_lock()'ed regions into account. If FPU usage happens within
     such a region from interrupt context, then the FPU state gets
     corrupted.

     That's a long standing bug, which got unearthed by the recent
     changes to the random code.

   - Josh wants to use his kernel.org email address"

* tag 'x86-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Prevent FPU state corruption
  MAINTAINERS: Update Josh Poimboeuf's email address