syzbot

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BUG: KCSAN: data-race in process_scheduled_works / process_scheduled_works

read-write to 0xffff8881000690b0 of 8 bytes by task 6483 on cpu 1:
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x492/0x990 kernel/workqueue.c:3348
 worker_thread+0x526/0x730 kernel/workqueue.c:3429
 kthread+0x1d1/0x210 kernel/kthread.c:388
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read-write to 0xffff8881000690b0 of 8 bytes by task 28843 on cpu 0:
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x492/0x990 kernel/workqueue.c:3348
 worker_thread+0x526/0x730 kernel/workqueue.c:3429
 kthread+0x1d1/0x210 kernel/kthread.c:388
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x0000000000003fef -> 0x0000000000003ff0

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 28843 Comm: kworker/u8:3 Not tainted 6.9.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound call_usermodehelper_exec_work
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