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Miscellaneous perf events fixes:

Browse source 
- Fix sched_cb_list corruption on PMU callbacks that
    invoke list_del() during perf_event_overflow()
    calls (Thomas Richter)
 
  - Fix PEBS pt_regs->flags snapshot data that was
    regressed with the introduction of adaptive
    PEBS v4 support (Dapeng Mi)
 
  - Fix possible drain_pebs() re-entry bug
    when intel_pmu_drain_pebs_buffer() is called from
    process context (Dapeng Mi)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2026-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf events fixes from Ingo Molnar

 - Fix sched_cb_list corruption on PMU callbacks that
   invoke list_del() during perf_event_overflow()
   calls (Thomas Richter)

 - Fix PEBS pt_regs->flags snapshot data that
   regressed with the introduction of adaptive
   PEBS v4 support (Dapeng Mi)

 - Fix possible drain_pebs() re-entry bug when
   intel_pmu_drain_pebs_buffer() is called from
   process context (Dapeng Mi)

* tag 'perf-urgent-2026-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Prevent drain_pebs() reentry
  perf/x86/intel: Correct pt_regs->flags update for PEBS path
  perf/core: Allow list_del during perf_event_overflow()
This commit is contained in:
Linus Torvalds 2026-09-13 08:44:54 -07:00
commit 85855f85de
4 changed files with 45 additions and 13 deletions
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