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BUG: KCSAN: data-race in insert_work / wq_worker_running

read-write to 0xffff888237c2c8e4 of 4 bytes by task 16912 on cpu 0:
 wq_worker_running+0x98/0x120 kernel/workqueue.c:1068
 schedule_timeout+0xcc/0x230 kernel/time/timer.c:2167
 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:572 [inline]
 synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:624 [inline]
 rcu_exp_wait_wake kernel/rcu/tree_exp.h:693 [inline]
 rcu_exp_sel_wait_wake+0x554/0x1380 kernel/rcu/tree_exp.h:727
 wait_rcu_exp_gp+0x1e/0x30 kernel/rcu/tree_exp.h:513
 process_one_work+0x434/0x860 kernel/workqueue.c:2597
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2748
 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 to 0xffff888237c2c8e4 of 4 bytes by task 3064 on cpu 1:
 __need_more_worker kernel/workqueue.c:827 [inline]
 insert_work+0x10e/0x190 kernel/workqueue.c:1560
 __queue_work+0x722/0x980 kernel/workqueue.c:1714
 queue_work_on+0x95/0xf0 kernel/workqueue.c:1744
 srcu_queue_delayed_work_on kernel/rcu/srcutree.c:808 [inline]
 srcu_schedule_cbs_sdp kernel/rcu/srcutree.c:821 [inline]
 srcu_gp_end kernel/rcu/srcutree.c:889 [inline]
 srcu_advance_state kernel/rcu/srcutree.c:1671 [inline]
 process_srcu+0x710/0xae0 kernel/rcu/srcutree.c:1769
 process_one_work+0x434/0x860 kernel/workqueue.c:2597
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2748
 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: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3064 Comm: kworker/1:2 Tainted: G        W          6.5.0-rc4-syzkaller-00227-g024ff300db33 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: rcu_gp process_srcu
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