================================================================== BUG: KCSAN: data-race in wg_socket_send_skb_to_peer / wg_socket_send_skb_to_peer read-write to 0xffff8881191eea58 of 8 bytes by task 413 on cpu 1: wg_socket_send_skb_to_peer+0xe8/0x130 drivers/net/wireguard/socket.c:183 wg_socket_send_buffer_to_peer+0xf1/0x120 drivers/net/wireguard/socket.c:200 wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:40 [inline] wg_packet_handshake_send_worker+0x10d/0x160 drivers/net/wireguard/send.c:51 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x4ce/0x9d0 kernel/workqueue.c:3321 worker_thread+0x582/0x770 kernel/workqueue.c:3402 kthread+0x486/0x510 kernel/kthread.c:464 ret_from_fork+0xdd/0x150 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 read-write to 0xffff8881191eea58 of 8 bytes by task 3395 on cpu 0: wg_socket_send_skb_to_peer+0xe8/0x130 drivers/net/wireguard/socket.c:183 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline] wg_packet_tx_worker+0x12d/0x330 drivers/net/wireguard/send.c:276 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x4ce/0x9d0 kernel/workqueue.c:3321 worker_thread+0x582/0x770 kernel/workqueue.c:3402 kthread+0x486/0x510 kernel/kthread.c:464 ret_from_fork+0xdd/0x150 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 value changed: 0x0000000000000800 -> 0x0000000000000894 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3395 Comm: kworker/0:4 Not tainted 6.16.0-rc2-syzkaller-00087-g24770983ccfe #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: wg-crypt-wg0 wg_packet_tx_worker ==================================================================