sched_ext: A fix for v6.14-rc6

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BPF schedulers could trigger a crash by passing in an invalid CPU to the
 helper scx_bpf_select_cpu_dfl(). Fix it by verifying input validity.
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Merge tag 'sched_ext-for-6.14-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fix from Tejun Heo:
 "BPF schedulers could trigger a crash by passing in an invalid CPU to
  the scx_bpf_select_cpu_dfl() helper.

  Fix it by verifying input validity"

* tag 'sched_ext-for-6.14-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Validate prev_cpu in scx_bpf_select_cpu_dfl()

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Linus Torvalds 2025-03-12 11:52:04 -10:00

parent 6e8e2f82bc 9360dfe4cb

commit b7f94fcf55

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kernel/sched/ext.c

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