================================================================== BUG: KCSAN: data-race in __mod_timer / __mod_timer write to 0xffff888136dfe510 of 8 bytes by interrupt on cpu 1: __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+0xc4/0xf0 drivers/net/wireguard/timers.c:215 wg_packet_consume_data_done drivers/net/wireguard/receive.c:354 [inline] wg_packet_rx_poll+0x798/0xf70 drivers/net/wireguard/receive.c:474 __napi_poll+0x60/0x3b0 net/core/dev.c:6483 napi_poll net/core/dev.c:6550 [inline] net_rx_action+0x31a/0x6c0 net/core/dev.c:6660 __do_softirq+0xc1/0x265 kernel/softirq.c:571 do_softirq+0x7e/0xb0 kernel/softirq.c:472 __local_bh_enable_ip+0x64/0x70 kernel/softirq.c:396 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:395 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499 process_one_work+0x3e6/0x750 kernel/workqueue.c:2390 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2537 kthread+0x1a6/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read to 0xffff888136dfe510 of 8 bytes by task 29857 on cpu 0: __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+0xc4/0xf0 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+0x1a6/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x000000010003bd2e -> 0x000000010003bd43 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 29857 Comm: kworker/0:1 Not tainted 6.3.0-rc6-syzkaller-00173-g7a934f4bd7d6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: wg-crypt-wg1 wg_packet_tx_worker ==================================================================