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BUG: KCSAN: data-race in probe_sched_switch / tracing_stop_cmdline_record

read-write to 0xffffffff895fc1e0 of 4 bytes by task 5528 on cpu 1:
 tracing_stop_sched_switch kernel/trace/trace_sched_switch.c:120 [inline]
 tracing_stop_cmdline_record+0x28/0xc0 kernel/trace/trace_sched_switch.c:140
 __ftrace_event_enable_disable+0x323/0x4b0 kernel/trace/trace_events.c:848
 ftrace_event_enable_disable kernel/trace/trace_events.c:934 [inline]
 __ftrace_set_clr_event_nolock+0x39e/0x820 kernel/trace/trace_events.c:1404
 __ftrace_set_clr_event kernel/trace/trace_events.c:1437 [inline]
 ftrace_set_clr_event+0x2a6/0x340 kernel/trace/trace_events.c:1487
 ftrace_event_write+0x170/0x1d0 kernel/trace/trace_events.c:1577
 vfs_write+0x254/0x9a0 fs/read_write.c:685
 ksys_write+0xdc/0x1a0 fs/read_write.c:739
 __do_sys_write fs/read_write.c:750 [inline]
 __se_sys_write fs/read_write.c:747 [inline]
 __x64_sys_write+0x40/0x50 fs/read_write.c:747
 x64_sys_call+0x154e/0x2550 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff895fc1e0 of 4 bytes by task 4966 on cpu 0:
 probe_sched_switch+0x46/0xa0 kernel/trace/trace_sched_switch.c:32
 __do_trace_sched_switch include/trace/events/sched.h:220 [inline]
 trace_sched_switch include/trace/events/sched.h:220 [inline]
 __schedule+0xc34/0xd20 kernel/sched/core.c:7281
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x5b/0xa0 kernel/sched/core.c:7376
 schedule_timeout+0x53/0x180 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common kernel/sched/completion.c:121 [inline]
 wait_for_common+0xef/0x1d0 kernel/sched/completion.c:132
 __synchronize_srcu+0x125/0x160 kernel/rcu/srcutree.c:1477
 synchronize_srcu+0x1bd/0x1d0 kernel/rcu/srcutree.c:-1
 fsnotify_connector_destroy_workfn+0x4e/0x90 fs/notify/mark.c:385
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x56a/0xa50 kernel/workqueue.c:3479
 worker_thread+0x569/0x750 kernel/workqueue.c:3560
 kthread+0x223/0x270 kernel/kthread.c:436
 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

value changed: 0x00000001 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 4966 Comm: kworker/u8:42 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events_unbound fsnotify_connector_destroy_workfn
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