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BUG: KCSAN: data-race in io_sq_thread / io_sq_thread_park
write to 0xffff88811e5dc4b8 of 8 bytes by task 18908 on cpu 1:
io_sq_thread+0xbd5/0xc50 io_uring/sqpoll.c:316
ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
read to 0xffff88811e5dc4b8 of 8 bytes by task 47 on cpu 0:
io_sq_thread_park+0x1b/0x80 io_uring/sqpoll.c:45
io_ring_exit_work+0x178/0x4f0 io_uring/io_uring.c:3114
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2703
worker_thread+0x525/0x730 kernel/workqueue.c:2784
kthread+0x1d7/0x210 kernel/kthread.c:388
ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
value changed: 0xffff88811dcd30c0 -> 0x0000000000000000
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 47 Comm: kworker/u4:3 Not tainted 6.7.0-rc2-syzkaller-00029-g9b6de136b5f0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events_unbound io_ring_exit_work
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