================================================================== BUG: KCSAN: data-race in wg_socket_send_skb_to_peer / wg_socket_send_skb_to_peer read-write to 0xffff888117d98988 of 8 bytes by task 3373 on cpu 0: 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:3238 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3319 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3400 kthread+0x4ae/0x520 kernel/kthread.c:464 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read-write to 0xffff888117d98988 of 8 bytes by task 3949 on cpu 1: wg_socket_send_skb_to_peer+0xe4/0x130 drivers/net/wireguard/socket.c:183 wg_socket_send_buffer_to_peer+0xee/0x120 drivers/net/wireguard/socket.c:200 wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:40 [inline] wg_packet_handshake_send_worker+0x10c/0x150 drivers/net/wireguard/send.c:51 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3319 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3400 kthread+0x4ae/0x520 kernel/kthread.c:464 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 value changed: 0x0000000000000360 -> 0x00000000000003b0 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3949 Comm: kworker/u8:9 Not tainted 6.14.0-rc5-syzkaller-00013-g99fa936e8e4f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: wg-kex-wg2 wg_packet_handshake_send_worker ==================================================================