[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.10.5' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   34.275609] IPVS: ftp: loaded support on port[0] = 21
[   36.289356] Bluetooth: hci0 command 0x0409 tx timeout
[   38.367261] Bluetooth: hci0 command 0x041b tx timeout
[   39.306099] ODEBUG: assert_init not available (active state 0) object type: timer_list hint:           (null)
[   39.316959] ------------[ cut here ]------------
[   39.322319] WARNING: CPU: 0 PID: 8032 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb
[   39.331316] Kernel panic - not syncing: panic_on_warn set ...
[   39.331316] 
[   39.339150] CPU: 0 PID: 8032 Comm: syz-executor699 Not tainted 4.14.210-syzkaller #0
[   39.347183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   39.356524] Call Trace:
[   39.359115]  dump_stack+0x1b2/0x283
[   39.362777]  panic+0x1f9/0x42d
[   39.365969]  ? add_taint.cold+0x16/0x16
[   39.369927]  ? debug_print_object.cold+0xa7/0xdb
[   39.374699]  ? debug_print_object.cold+0xa7/0xdb
[   39.379442]  __warn.cold+0x20/0x4b
[   39.383398]  ? ist_end_non_atomic+0x10/0x10
[   39.387698]  ? debug_print_object.cold+0xa7/0xdb
[   39.392430]  report_bug+0x208/0x249
[   39.396039]  do_error_trap+0x195/0x2d0
[   39.399904]  ? math_error+0x2d0/0x2d0
[   39.403752]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   39.408598]  invalid_op+0x1b/0x40
[   39.412042] RIP: 0010:debug_print_object.cold+0xa7/0xdb
[   39.417385] RSP: 0018:ffff88809587f578 EFLAGS: 00010082
[   39.424374] RAX: 0000000000000061 RBX: 0000000000000005 RCX: 0000000000000000
[   39.431634] RDX: 0000000000000000 RSI: ffffffff878bbac0 RDI: ffffed1012b0fea5
[   39.438887] RBP: ffffffff878b6d80 R08: 0000000000000061 R09: 0000000000000003
[   39.446175] R10: 0000000000000000 R11: ffff8880b3368400 R12: 0000000000000000
[   39.453426] R13: 0000000000000000 R14: ffff8880b298d7f0 R15: 1ffff11012b0feb8
[   39.460696]  ? debug_print_object.cold+0xa7/0xdb
[   39.465431]  debug_object_assert_init+0x1d3/0x2d0
[   39.470255]  ? debug_object_active_state+0x330/0x330
[   39.475356]  ? __queue_work+0x517/0xf70
[   39.479315]  ? lock_downgrade+0x740/0x740
[   39.483456]  del_timer+0x5d/0xe0
[   39.486807]  ? process_timeout+0x20/0x20
[   39.490849]  ? _raw_spin_unlock+0x29/0x40
[   39.494983]  ? __queue_work+0x517/0xf70
[   39.498936]  try_to_grab_pending+0x243/0x610
[   39.503322]  __cancel_work+0x68/0x240
[   39.507102]  ? try_to_grab_pending+0x610/0x610
[   39.511662]  ? trace_hardirqs_on_caller+0x3a8/0x580
[   39.516655]  ? queue_delayed_work_on+0xfc/0x1d0
[   39.521308]  l2cap_chan_del+0x4b5/0x950
[   39.525261]  l2cap_chan_close+0x103/0x870
[   39.529399]  ? __set_monitor_timer+0x1d0/0x1d0
[   39.533963]  ? wait_for_completion_io+0x10/0x10
[   39.538613]  ? __local_bh_enable_ip+0xc1/0x170
[   39.543174]  l2cap_sock_shutdown+0x2e7/0xc20
[   39.547574]  ? do_exit+0xa3f/0x2850
[   39.551178]  ? l2cap_skb_msg_name+0x120/0x120
[   39.555661]  ? exit_to_usermode_loop+0x160/0x200
[   39.560491]  ? do_syscall_64+0x4a3/0x640
[   39.564559]  ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   39.569923]  ? l2cap_sock_release+0x6a/0x280
[   39.574328]  ? lock_downgrade+0x740/0x740
[   39.579219]  l2cap_sock_release+0x77/0x280
[   39.583442]  __sock_release+0xcd/0x2b0
[   39.588191]  ? __sock_release+0x2b0/0x2b0
[   39.592338]  sock_close+0x15/0x20
[   39.595778]  __fput+0x25f/0x7a0
[   39.599046]  task_work_run+0x11f/0x190
[   39.604076]  do_exit+0xa44/0x2850
[   39.607512]  ? trace_hardirqs_on+0x10/0x10
[   39.612392]  ? mm_update_next_owner+0x5b0/0x5b0
[   39.617065]  ? get_signal+0x323/0x1ca0
[   39.620949]  ? lock_acquire+0x170/0x3f0
[   39.624921]  ? lock_downgrade+0x740/0x740
[   39.629060]  do_group_exit+0x100/0x2e0
[   39.632928]  get_signal+0x38d/0x1ca0
[   39.636652]  do_signal+0x7c/0x1550
[   39.640169]  ? __local_bh_enable_ip+0xc1/0x170
[   39.644731]  ? trace_hardirqs_on_caller+0x3a8/0x580
[   39.650694]  ? l2cap_sock_connect+0x30b/0x520
[   39.655190]  ? __local_bh_enable_ip+0xc1/0x170
[   39.659764]  ? setup_sigcontext+0x820/0x820
[   39.664326]  ? l2cap_sock_accept+0x4d0/0x4d0
[   39.668723]  ? security_socket_connect+0x83/0xb0
[   39.673458]  ? l2cap_sock_accept+0x4d0/0x4d0
[   39.677884]  ? SyS_connect+0xf6/0x240
[   39.681668]  ? SyS_accept+0x30/0x30
[   39.685295]  ? lock_downgrade+0x740/0x740
[   39.689444]  ? exit_to_usermode_loop+0x41/0x200
[   39.694093]  exit_to_usermode_loop+0x160/0x200
[   39.698686]  do_syscall_64+0x4a3/0x640
[   39.702645]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   39.707836] RIP: 0033:0x446e49
[   39.711028] RSP: 002b:00007ffc77d120a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[   39.718732] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446e49
[   39.727195] RDX: 0000000000000007 RSI: 0000000020000100 RDI: 0000000000000004
[   39.734561] RBP: 0000000000000003 R08: 00000000000000ff R09: 00000000000000ff
[   39.741818] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000001527850
[   39.749099] R13: 0000000000000072 R14: 0000000000000000 R15: 0000000000000000
[   39.757004] Kernel Offset: disabled
[   39.760667] Rebooting in 86400 seconds..