------------[ cut here ]------------ WARNING: CPU: 1 PID: 1112 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Modules linked in: CPU: 1 PID: 1112 Comm: kworker/1:2 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 Workqueue: wg-crypt-wg0 wg_packet_tx_worker RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Code: 24 45 31 f6 31 ff 89 de e8 7d 7a d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 00 77 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe RSP: 0018:ffffc90000dd0870 EFLAGS: 00010246 RAX: ffffffff81a0b690 RBX: 0000000000000000 RCX: ffff8880221a3b80 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: dffffc0000000000 R09: 1ffffffff2208e18 R10: dffffc0000000000 R11: fffffbfff2208e19 R12: ffff8880221a5328 R13: dffffc0000000000 R14: ffffc90000dd08d0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffef55b2e90 CR3: 0000000064ef2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline] ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline] bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163 bpf_prog_690f12e098ef46de+0x32/0x448 bpf_dispatcher_nop_func include/linux/bpf.h:890 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:652 [inline] bpf_prog_run_clear_cb+0x94/0x1a0 include/linux/filter.h:806 run_filter+0x12a/0x220 net/packet/af_packet.c:2120 packet_rcv+0x3cc/0x1260 net/packet/af_packet.c:2193 deliver_skb net/core/dev.c:2278 [inline] deliver_ptype_list_skb net/core/dev.c:2293 [inline] __netif_receive_skb_core+0x2a42/0x3670 net/core/dev.c:5503 __netif_receive_skb_one_core net/core/dev.c:5550 [inline] __netif_receive_skb+0x74/0x290 net/core/dev.c:5666 process_backlog+0x366/0x770 net/core/dev.c:6543 __napi_poll+0xbb/0x430 net/core/dev.c:7102 napi_poll net/core/dev.c:7169 [inline] net_rx_action+0x522/0xa80 net/core/dev.c:7259 handle_softirqs+0x336/0x830 kernel/softirq.c:576 do_softirq+0x142/0x210 kernel/softirq.c:477 __local_bh_enable_ip+0x180/0x1c0 kernel/softirq.c:401 wg_socket_send_skb_to_peer+0x167/0x1c0 drivers/net/wireguard/socket.c:184 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline] wg_packet_tx_worker+0x1d3/0x7b0 drivers/net/wireguard/send.c:276 process_one_work+0x867/0xff0 kernel/workqueue.c:2310 worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457 kthread+0x42e/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287