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BUG: KCSAN: data-race in process_one_work / process_one_work

read-write to 0xffff888100066098 of 8 bytes by task 1648 on cpu 0:
 process_one_work+0x40d/0x860 kernel/workqueue.c:2598
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2751
 kthread+0x1d7/0x210 kernel/kthread.c:389
 ret_from_fork+0x2e/0x40 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

read-write to 0xffff888100066098 of 8 bytes by task 4522 on cpu 1:
 process_one_work+0x40d/0x860 kernel/workqueue.c:2598
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2751
 kthread+0x1d7/0x210 kernel/kthread.c:389
 ret_from_fork+0x2e/0x40 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

value changed: 0x00000000000067d8 -> 0x00000000000067dc

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 4522 Comm: kworker/u4:8 Not tainted 6.5.0-rc6-syzkaller-00117-g0e8860d2125f #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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