================================================================== BUG: KCSAN: data-race in wg_socket_send_skb_to_peer / wg_socket_send_skb_to_peer read-write to 0xffff88810b23d228 of 8 bytes by task 6184 on cpu 0: wg_socket_send_skb_to_peer+0xe4/0x130 drivers/net/wireguard/socket.c:183 wg_socket_send_buffer_to_peer+0xd6/0x100 drivers/net/wireguard/socket.c:200 wg_packet_send_handshake_response+0xe3/0x120 drivers/net/wireguard/send.c:103 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline] wg_packet_handshake_receive_worker+0x3ed/0x5f0 drivers/net/wireguard/receive.c:213 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read-write to 0xffff88810b23d228 of 8 bytes by task 3978 on cpu 1: wg_socket_send_skb_to_peer+0xe4/0x130 drivers/net/wireguard/socket.c:183 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline] wg_packet_tx_worker+0x127/0x360 drivers/net/wireguard/send.c:276 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 value changed: 0x000000000000067c -> 0x00000000000006d8 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3978 Comm: kworker/1:8 Tainted: G W 6.11.0-syzkaller-05319-g4a39ac5b7d62 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: wg-crypt-wg1 wg_packet_tx_worker ==================================================================