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linux/include/linux/cgroup.h
Linus Torvalds de37e502a3 cgroup: Fixes for v7.1-rc4 
Two rstat fixes:
 
 - Out-of-bounds access in the css_rstat_updated() BPF kfunc when called
   with an unchecked user-supplied cpu.
 
 - Over-strict NMI guard after the recent switch to try_cmpxchg left
   sparc and ppc64 unable to queue rstat updates from NMI.
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Merge tag 'cgroup-for-7.1-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:
 "Two rstat fixes:

   - Out-of-bounds access in the css_rstat_updated() BPF kfunc when
     called with an unchecked user-supplied cpu

   - Over-strict NMI guard after the recent switch to try_cmpxchg left
     sparc and ppc64 unable to queue rstat updates from NMI"

* tag 'cgroup-for-7.1-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: rstat: relax NMI guard after switch to try_cmpxchg
  cgroup/rstat: validate cpu before css_rstat_cpu() access
2026-05-22 16:28:47 -07:00

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