================================================================== BUG: KCSAN: data-race in __mod_timer / __mod_timer write to 0xffff888136a18490 of 8 bytes by task 31140 on cpu 1: __mod_timer+0x9f5/0xc30 kernel/time/timer.c:1012 mod_timer+0x1b/0x20 kernel/time/timer.c:1108 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+0xf7/0x360 drivers/net/wireguard/send.c:276 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298 worker_thread+0x616/0xa70 kernel/workqueue.c:2445 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 read to 0xffff888136a18490 of 8 bytes by task 21231 on cpu 0: __mod_timer+0x7c/0xc30 kernel/time/timer.c:980 mod_timer+0x1b/0x20 kernel/time/timer.c:1108 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_receive_handshake_packet drivers/net/wireguard/receive.c:209 [inline] wg_packet_handshake_receive_worker+0x42f/0x480 drivers/net/wireguard/receive.c:220 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298 worker_thread+0x616/0xa70 kernel/workqueue.c:2445 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 value changed: 0x000000010003f574 -> 0x000000010003f577 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 21231 Comm: kworker/0:4 Tainted: G W 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: wg-kex-wg0 wg_packet_handshake_receive_worker ================================================================== IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready