Warning: Permanently added '10.128.1.47' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 55.180698][ T7163] syz-executor271 uses obsolete (PF_INET,SOCK_PACKET) [ 55.196000][ T7163] ------------[ cut here ]------------ [ 55.201597][ T7163] WARNING: CPU: 0 PID: 7163 at net/ipv4/route.c:1243 ip_rt_bug+0x11/0x20 [ 55.210027][ T7163] Kernel panic - not syncing: panic_on_warn set ... [ 55.216637][ T7163] CPU: 0 PID: 7163 Comm: syz-executor271 Not tainted 5.6.0-rc7-syzkaller #0 [ 55.225310][ T7163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.235470][ T7163] Call Trace: [ 55.238775][ T7163] dump_stack+0x188/0x20d [ 55.243112][ T7163] ? rt_dst_alloc+0x420/0x430 [ 55.247801][ T7163] panic+0x2e3/0x75c [ 55.251707][ T7163] ? add_taint.cold+0x16/0x16 [ 55.256395][ T7163] ? printk+0xba/0xed [ 55.260383][ T7163] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 55.265847][ T7163] ? __warn.cold+0x14/0x35 [ 55.270267][ T7163] ? __warn+0xd5/0x1c8 [ 55.274341][ T7163] ? ip_rt_bug+0x11/0x20 [ 55.278586][ T7163] __warn.cold+0x2f/0x35 [ 55.282836][ T7163] ? ip_rt_bug+0x11/0x20 [ 55.287087][ T7163] report_bug+0x27b/0x2f0 [ 55.291424][ T7163] do_error_trap+0x12b/0x220 [ 55.296019][ T7163] ? ip_rt_bug+0x11/0x20 [ 55.300336][ T7163] do_invalid_op+0x32/0x40 [ 55.304775][ T7163] ? ip_rt_bug+0x11/0x20 [ 55.309021][ T7163] invalid_op+0x23/0x30 [ 55.313180][ T7163] RIP: 0010:ip_rt_bug+0x11/0x20 [ 55.318034][ T7163] Code: ff ff e8 c2 56 2f fb e9 ef fe ff ff e8 b8 56 2f fb e9 59 ff ff ff 0f 1f 00 55 48 89 d5 e8 57 81 f2 fa 48 89 ef e8 af a6 8b ff <0f> 0b 31 c0 5d c3 66 0f 1f 84 00 00 00 00 00 41 54 49 89 fc e8 36 [ 55.337666][ T7163] RSP: 0018:ffffc90000f77300 EFLAGS: 00010293 [ 55.343713][ T7163] RAX: ffff8880a936c000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.351664][ T7163] RDX: 0000000000000000 RSI: ffffffff867fad21 RDI: 0000000000000286 [ 55.359612][ T7163] RBP: ffff88809428b500 R08: 0000000000000000 R09: ffffed1015cc707c [ 55.367561][ T7163] R10: ffffed1015cc707b R11: ffff8880ae6383db R12: ffff8880997b0c00 [ 55.375510][ T7163] R13: ffff88809428b500 R14: ffff8880a4a87240 R15: ffff88809428b558 [ 55.383469][ T7163] ? ip_rt_bug+0x11/0x20 [ 55.387692][ T7163] ip_local_out+0xaf/0x1a0 [ 55.392104][ T7163] ip_send_skb+0x3e/0xe0 [ 55.396338][ T7163] ip_push_pending_frames+0x5f/0x80 [ 55.401522][ T7163] icmp_push_reply+0x33f/0x490 [ 55.406269][ T7163] __icmp_send+0xc4d/0x14b0 [ 55.410755][ T7163] ? icmp_route_lookup.constprop.0+0x1480/0x1480 [ 55.417059][ T7163] ? __lock_acquire+0x80b/0x3ca0 [ 55.422034][ T7163] ? find_held_lock+0x2d/0x110 [ 55.426794][ T7163] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 55.432669][ T7163] ? __ip_options_compile+0x88a/0x1710 [ 55.438111][ T7163] ? ip_forward+0x1d50/0x1d50 [ 55.442781][ T7163] ? ip_route_input_noref+0x15c/0x240 [ 55.448141][ T7163] ? ip_options_compile+0xad/0xf0 [ 55.453159][ T7163] ip_options_compile+0xad/0xf0 [ 55.457990][ T7163] ? __ip_options_compile+0x1710/0x1710 [ 55.463516][ T7163] ? rcu_read_lock_held_common+0x130/0x130 [ 55.469299][ T7163] ? ip_rcv+0x24e/0x3c0 [ 55.473438][ T7163] ip_rcv_finish_core.isra.0+0x4b3/0x1ec0 [ 55.479147][ T7163] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 55.485019][ T7163] ip_rcv_finish+0x144/0x2f0 [ 55.489618][ T7163] ip_rcv+0xd0/0x3c0 [ 55.493502][ T7163] ? ip_local_deliver+0x4e0/0x4e0 [ 55.498516][ T7163] ? ip_rcv_finish_core.isra.0+0x1ec0/0x1ec0 [ 55.504480][ T7163] ? ip_local_deliver+0x4e0/0x4e0 [ 55.509493][ T7163] __netif_receive_skb_one_core+0xf5/0x160 [ 55.515296][ T7163] ? __netif_receive_skb_core+0x30e0/0x30e0 [ 55.521171][ T7163] ? lock_acquire+0x197/0x420 [ 55.525831][ T7163] ? netif_receive_skb+0xec/0x960 [ 55.530840][ T7163] __netif_receive_skb+0x27/0x1c0 [ 55.535844][ T7163] netif_receive_skb+0x16e/0x960 [ 55.540761][ T7163] ? __netif_receive_skb+0x1c0/0x1c0 [ 55.546065][ T7163] ? __lock_acquire+0x80b/0x3ca0 [ 55.550989][ T7163] tun_rx_batched.isra.0+0x47b/0x7d0 [ 55.556267][ T7163] ? mark_held_locks+0xe0/0xe0 [ 55.561025][ T7163] ? tun_cleanup+0x30/0x30 [ 55.565423][ T7163] ? lock_acquire+0x197/0x420 [ 55.570104][ T7163] ? tun_get_user+0x11af/0x3be0 [ 55.574965][ T7163] tun_get_user+0x134a/0x3be0 [ 55.579634][ T7163] ? rcu_read_lock_held_common+0x130/0x130 [ 55.585440][ T7163] ? tun_build_skb.isra.0+0x13c0/0x13c0 [ 55.591015][ T7163] ? rcu_read_lock_held_common+0x130/0x130 [ 55.596807][ T7163] tun_chr_write_iter+0xb0/0x147 [ 55.601741][ T7163] new_sync_write+0x49c/0x700 [ 55.606398][ T7163] ? new_sync_read+0x790/0x790 [ 55.611159][ T7163] ? apparmor_path_rmdir+0x30/0x30 [ 55.616277][ T7163] ? security_file_permission+0x8a/0x370 [ 55.621919][ T7163] __vfs_write+0xc9/0x100 [ 55.626231][ T7163] vfs_write+0x262/0x5c0 [ 55.630457][ T7163] ksys_write+0x127/0x250 [ 55.634777][ T7163] ? __ia32_sys_read+0xb0/0xb0 [ 55.639517][ T7163] ? trace_hardirqs_off_caller+0x55/0x230 [ 55.645288][ T7163] do_syscall_64+0xf6/0x7d0 [ 55.649795][ T7163] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.655713][ T7163] RIP: 0033:0x440699 [ 55.659587][ T7163] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.679223][ T7163] RSP: 002b:00007ffc200041c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 55.687652][ T7163] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440699 [ 55.695639][ T7163] RDX: 000000000000100c RSI: 0000000020000240 RDI: 0000000000000005 [ 55.703628][ T7163] RBP: 0000000000000000 R08: 0000000000002c00 R09: 00007ffc0000000d [ 55.711580][ T7163] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f20 [ 55.719528][ T7163] R13: 0000000000401fb0 R14: 0000000000000000 R15: 0000000000000000 [ 55.728383][ T7163] Kernel Offset: disabled [ 55.732753][ T7163] Rebooting in 86400 seconds..