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BUG: KCSAN: data-race in __mod_timer / __mod_timer

write to 0xffff888104e30410 of 8 bytes by task 3231 on cpu 0:
 __mod_timer+0x7cb/0x890 kernel/time/timer.c:1073
 mod_timer+0x1f/0x30 kernel/time/timer.c:1190
 mod_peer_timer drivers/net/wireguard/timers.c:37 [inline]
 wg_timers_any_authenticated_packet_traversal+0xc3/0xf0 drivers/net/wireguard/timers.c:215
 wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline]
 wg_packet_tx_worker+0xeb/0x320 drivers/net/wireguard/send.c:276
 process_one_work+0x3e6/0x750 kernel/workqueue.c:2390
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2537
 kthread+0x1ac/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

read to 0xffff888104e30410 of 8 bytes by task 3233 on cpu 1:
 __mod_timer+0x6e/0x890 kernel/time/timer.c:1033
 mod_timer+0x1f/0x30 kernel/time/timer.c:1190
 mod_peer_timer drivers/net/wireguard/timers.c:37 [inline]
 wg_timers_any_authenticated_packet_traversal+0xc3/0xf0 drivers/net/wireguard/timers.c:215
 wg_receive_handshake_packet drivers/net/wireguard/receive.c:202 [inline]
 wg_packet_handshake_receive_worker+0x4e3/0x5e0 drivers/net/wireguard/receive.c:213
 process_one_work+0x3e6/0x750 kernel/workqueue.c:2390
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2537
 kthread+0x1ac/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

value changed: 0x00000000ffffd986 -> 0x00000000ffffd988

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3233 Comm: kworker/1:7 Not tainted 6.3.0-rc2-syzkaller-00047-g6015b1aca1a2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
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kernel write not supported for file /cpuinfo (pid: 3233 comm: kworker/1:7)