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BUG: KCSAN: data-race in __queue_work / wq_worker_running

read-write to 0xffff888237d2abe0 of 4 bytes by task 3213 on cpu 1:
 wq_worker_running+0x96/0xe0 kernel/workqueue.c:880
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6741
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x38b/0x8c0 kernel/locking/mutex.c:747
 __mutex_lock_slowpath+0xa/0x10 kernel/locking/mutex.c:1035
 mutex_lock+0x23/0x30 kernel/locking/mutex.c:286
 rtnl_lock+0x11/0x20 net/core/rtnetlink.c:75
 linkwatch_event+0xb/0x50 net/core/link_watch.c:277
 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 arch/x86/entry/entry_64.S:308

read to 0xffff888237d2abe0 of 4 bytes by task 3246 on cpu 0:
 __need_more_worker kernel/workqueue.c:785 [inline]
 insert_work kernel/workqueue.c:1365 [inline]
 __queue_work+0x79e/0xa60 kernel/workqueue.c:1517
 queue_work_on+0x7e/0xe0 kernel/workqueue.c:1545
 wg_queue_enqueue_per_peer_tx+0x118/0x210 drivers/net/wireguard/queueing.h:191
 wg_packet_encrypt_worker+0x8b4/0xab0 drivers/net/wireguard/send.c:305
 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 arch/x86/entry/entry_64.S:308

value changed: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3246 Comm: kworker/0:7 Not tainted 6.2.0-rc6-syzkaller-00003-g22b8077d0fce-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker
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