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BUG: KCSAN: data-race in insert_work / wq_worker_running

read-write to 0xffff888237d2a820 of 4 bytes by task 3062 on cpu 1:
 wq_worker_running+0x96/0xe0 kernel/workqueue.c:880
 synchronize_rcu_expedited+0x629/0x7c0 kernel/rcu/tree_exp.h:955
 synchronize_rcu+0x62/0x380 kernel/rcu/tree.c:3519
 key_garbage_collector+0x76a/0x8e0 security/keys/gc.c:292
 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289
 worker_thread+0x618/0xa70 kernel/workqueue.c:2436
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

read to 0xffff888237d2a820 of 4 bytes by interrupt on cpu 0:
 __need_more_worker kernel/workqueue.c:785 [inline]
 insert_work+0x10e/0x190 kernel/workqueue.c:1365
 __queue_work+0x69e/0x8e0 kernel/workqueue.c:1517
 queue_work_on+0x7e/0xe0 kernel/workqueue.c:1545
 queue_work include/linux/workqueue.h:502 [inline]
 schedule_work include/linux/workqueue.h:563 [inline]
 key_put+0x55/0xa0 security/keys/key.c:653
 keyring_free_object+0x15/0x20 security/keys/keyring.c:389
 assoc_array_destroy_subtree+0x1ea/0x350 lib/assoc_array.c:393
 assoc_array_rcu_cleanup+0xe9/0x110 lib/assoc_array.c:1325
 rcu_do_batch kernel/rcu/tree.c:2245 [inline]
 rcu_core+0x5ad/0xc10 kernel/rcu/tree.c:2505
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2522
 __do_softirq+0x158/0x2e3 kernel/softirq.c:571
 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934
 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

value changed: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.19.0-syzkaller-02858-ge2b542100719-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
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