Warning: Permanently added '10.128.0.65' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   36.783728] syz-executor690 uses obsolete (PF_INET,SOCK_PACKET)
[   36.796965] ------------[ cut here ]------------
[   36.801948] WARNING: CPU: 0 PID: 6314 at net/ipv4/route.c:1244 ip_rt_bug+0x11/0x20
[   36.809671] Kernel panic - not syncing: panic_on_warn set ...
[   36.809671] 
[   36.817192] CPU: 0 PID: 6314 Comm: syz-executor690 Not tainted 4.14.176-syzkaller #0
[   36.825090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   36.834465] Call Trace:
[   36.837073]  dump_stack+0x13e/0x194
[   36.840721]  panic+0x1f9/0x42d
[   36.843927]  ? add_taint.cold+0x16/0x16
[   36.848010]  ? ip_rt_bug+0x11/0x20
[   36.851580]  ? ip_rt_bug+0x11/0x20
[   36.855146]  __warn.cold+0x2f/0x30
[   36.858700]  ? ist_end_non_atomic+0x10/0x10
[   36.863046]  ? ip_rt_bug+0x11/0x20
[   36.866611]  report_bug+0x20a/0x248
[   36.870442]  do_error_trap+0x195/0x2d0
[   36.874485]  ? math_error+0x2d0/0x2d0
[   36.878319]  ? save_trace+0x290/0x290
[   36.882145]  ? debug_check_no_obj_freed+0x28e/0x6e4
[   36.887180]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   36.892037]  invalid_op+0x1b/0x40
[   36.895758] RIP: 0010:ip_rt_bug+0x11/0x20
[   36.899910] RSP: 0018:ffff88809afa73b8 EFLAGS: 00010297
[   36.905274] RAX: ffff888097d70500 RBX: ffffffff886d9b80 RCX: 0000000000000000
[   36.912550] RDX: 0000000000000000 RSI: ffffffff87d842e0 RDI: 0000000000000282
[   36.919933] RBP: ffff88809ef05e80 R08: 0000000000000001 R09: 0000000000000000
[   36.927689] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809dd592c0
[   36.936025] R13: ffff88809ef05e80 R14: ffff8880a66aabc0 R15: ffff88809ef05ed8
[   36.943511]  ? ip_rt_bug+0x11/0x20
[   36.947058]  ip_local_out+0x93/0x170
[   36.950784]  ip_send_skb+0x3a/0xc0
[   36.954321]  ip_push_pending_frames+0x5f/0x80
[   36.959029]  icmp_push_reply+0x381/0x4f0
[   36.963739]  __icmp_send+0x90f/0x1110
[   36.968742]  ? icmp_route_lookup.constprop.0+0x1070/0x1070
[   36.974371]  ? __ip_options_compile+0x6e5/0x1400
[   36.979139]  ? ip_options_fragment+0x260/0x260
[   36.983745]  ? ip_route_input_rcu+0x3410/0x3410
[   36.988410]  ip_options_compile+0x93/0xc0
[   36.992973]  ? __ip_options_compile+0x1400/0x1400
[   36.997991]  ip_rcv_finish+0x657/0x1a10
[   37.002745]  ip_rcv+0x9d8/0xfec
[   37.006020]  ? ip_local_deliver+0x450/0x450
[   37.010338]  ? ip_local_deliver_finish+0xaa0/0xaa0
[   37.015345]  ? ip_local_deliver+0x450/0x450
[   37.019692]  __netif_receive_skb_core+0x1e50/0x2c00
[   37.024757]  ? trace_hardirqs_on+0x10/0x10
[   37.029021]  ? enqueue_to_backlog+0xd20/0xd20
[   37.033651]  ? finish_task_switch+0x178/0x620
[   37.038172]  ? lock_acquire+0x170/0x3f0
[   37.042336]  ? __netif_receive_skb+0x27/0x1a0
[   37.047056]  __netif_receive_skb+0x27/0x1a0
[   37.051589]  netif_receive_skb_internal+0xd7/0x580
[   37.056577]  ? dev_cpu_dead+0x8c0/0x8c0
[   37.060578]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[   37.066030]  ? rcu_read_lock_sched_held+0x10a/0x130
[   37.071057]  ? netif_receive_skb+0x47/0x2a0
[   37.075394]  tun_rx_batched.isra.0+0x46c/0x7a0
[   37.079976]  ? tun_sock_write_space+0x190/0x190
[   37.085976]  ? ___preempt_schedule_notrace+0x16/0x27
[   37.091096]  ? preempt_schedule_notrace+0x99/0x120
[   37.096162]  ? ___preempt_schedule_notrace+0x16/0x27
[   37.101401]  tun_get_user+0xcde/0x3880
[   37.105342]  ? tun_net_xmit+0xf10/0xf10
[   37.109324]  ? find_held_lock+0x2d/0x110
[   37.113511]  ? __tun_get+0x11c/0x220
[   37.117442]  ? lock_downgrade+0x6e0/0x6e0
[   37.121601]  tun_chr_write_iter+0xcf/0x179
[   37.126125]  __vfs_write+0x44e/0x630
[   37.129865]  ? kernel_read+0x110/0x110
[   37.134096]  ? avc_policy_seqno+0x5/0x10
[   37.138277]  ? selinux_file_permission+0x7a/0x440
[   37.143283]  ? rw_verify_area+0xe1/0x2a0
[   37.147361]  vfs_write+0x192/0x4e0
[   37.150944]  SyS_write+0xf2/0x210
[   37.154521]  ? SyS_read+0x210/0x210
[   37.158154]  ? do_syscall_64+0x4c/0x640
[   37.162540]  ? SyS_read+0x210/0x210
[   37.166354]  do_syscall_64+0x1d5/0x640
[   37.170478]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   37.175833] RIP: 0033:0x440699
[   37.179141] RSP: 002b:00007fff0b9f57f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   37.186864] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440699
[   37.194168] RDX: 000000000000100c RSI: 0000000020000240 RDI: 0000000000000005
[   37.201586] RBP: 0000000000000000 R08: 0000000000002c00 R09: 00007fff0000000d
[   37.209115] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f20
[   37.216380] R13: 0000000000401fb0 R14: 0000000000000000 R15: 0000000000000000
[   37.225459] Kernel Offset: disabled
[   37.229302] Rebooting in 86400 seconds..