linux

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Files

Tetsuo Handa 3da6bb4197 perf/core: Fix WARN in perf_sigtrap()

Since exit_task_work() runs after perf_event_exit_task_context() updated
ctx->task to TASK_TOMBSTONE, perf_sigtrap() from perf_pending_task() might
observe event->ctx->task == TASK_TOMBSTONE.

Swap the early exit tests in order not to hit WARN_ON_ONCE().

Closes: https://syzkaller.appspot.com/bug?extid=2fe61cb2a86066be6985
Reported-by: syzbot <syzbot+2fe61cb2a86066be6985@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/b1c224bd-97f9-462c-a3e3-125d5e19c983@I-love.SAKURA.ne.jp

2025-07-09 13:40:17 +02:00

callchain.c

perf/core: Move perf_event sysctls into kernel/events

2025-02-21 14:53:02 +01:00

core.c

perf/core: Fix WARN in perf_sigtrap()

2025-07-09 13:40:17 +02:00

hw_breakpoint_test.c

perf/hw_breakpoint: remove MODULE_LICENSE in non-modules

2023-04-13 13:13:52 -07:00

hw_breakpoint.c

perf/hw_breakpoint: Return EOPNOTSUPP for unsupported breakpoint type