==================================================================
BUG: KCSAN: data-race in __mod_timer / __mod_timer

write to 0xffff888137be5278 of 8 bytes by task 3180 on cpu 0:
 __mod_timer+0x5fd/0x860 kernel/time/timer.c:1121
 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+0xd2/0x100 drivers/net/wireguard/timers.c:215
 wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline]
 wg_packet_tx_worker+0xe9/0x360 drivers/net/wireguard/send.c:276
 process_one_work kernel/workqueue.c:2627 [inline]
 process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2700
 worker_thread+0x525/0x730 kernel/workqueue.c:2781
 kthread+0x1d7/0x210 kernel/kthread.c:388
 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

read to 0xffff888137be5278 of 8 bytes by task 3670 on cpu 1:
 __mod_timer+0x6e/0x860 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+0xd2/0x100 drivers/net/wireguard/timers.c:215
 wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:36 [inline]
 wg_packet_handshake_send_worker+0xd7/0x150 drivers/net/wireguard/send.c:51
 process_one_work kernel/workqueue.c:2627 [inline]
 process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2700
 worker_thread+0x525/0x730 kernel/workqueue.c:2781
 kthread+0x1d7/0x210 kernel/kthread.c:388
 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

value changed: 0x00000000ffffb01c -> 0x00000000ffffb02d

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3670 Comm: kworker/u4:6 Not tainted 6.7.0-rc5-syzkaller-00230-g3b8a9b2e6809 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
==================================================================
__quota_error: 5 callbacks suppressed
Quota error (device loop4): free_dqentry: Quota structure has offset to other block (1) than it should (5)
Quota error (device loop4): dquot_write_dquot: Can't write quota structure (error -5). Quota may get out of sync!
Quota error (device loop4): dquot_write_dquot: Can't write quota structure (error -5). Quota may get out of sync!