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BUG: KCSAN: data-race in process_one_work / process_one_work

read-write to 0xffff8881000660a0 of 8 bytes by task 5175 on cpu 0:
 process_one_work+0x45f/0x860 kernel/workqueue.c:2606
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2751
 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:304

read-write to 0xffff8881000660a0 of 8 bytes by task 6460 on cpu 1:
 process_one_work+0x45f/0x860 kernel/workqueue.c:2606
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2751
 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:304

value changed: 0x00000000000032bf -> 0x00000000000032c0

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 6460 Comm: kworker/u4:8 Not tainted 6.5.0-syzkaller-09276-g99d99825fc07 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_unbound flush_to_ldisc
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