[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.219' (ECDSA) to the list of known hosts. syzkaller login: [ 63.419595][ T6830] IPVS: ftp: loaded support on port[0] = 21 executing program [ 66.556078][ T2500] Bluetooth: hci0: command 0x0409 tx timeout [ 68.635717][ T2500] Bluetooth: hci0: command 0x041b tx timeout [ 69.519542][ T6858] ------------[ cut here ]------------ [ 69.525251][ T6858] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 69.535128][ T6858] WARNING: CPU: 0 PID: 6858 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 69.544573][ T6858] Kernel panic - not syncing: panic_on_warn set ... [ 69.551141][ T6858] CPU: 0 PID: 6858 Comm: syz-executor296 Not tainted 5.8.0-rc6-syzkaller #0 [ 69.560479][ T6858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.570529][ T6858] Call Trace: [ 69.573804][ T6858] dump_stack+0x18f/0x20d [ 69.578115][ T6858] panic+0x2e3/0x75c [ 69.581995][ T6858] ? __warn_printk+0xf3/0xf3 [ 69.586615][ T6858] ? console_unlock+0x7f0/0xf30 [ 69.591450][ T6858] ? __warn.cold+0x5/0x45 [ 69.595763][ T6858] ? __warn+0xd6/0x1f2 [ 69.599862][ T6858] ? debug_print_object+0x160/0x250 [ 69.605045][ T6858] __warn.cold+0x20/0x45 [ 69.609290][ T6858] ? wake_up_klogd.part.0+0x8c/0xc0 [ 69.614489][ T6858] ? debug_print_object+0x160/0x250 [ 69.619685][ T6858] report_bug+0x1bd/0x210 [ 69.624003][ T6858] handle_bug+0x38/0x90 [ 69.628141][ T6858] exc_invalid_op+0x13/0x40 [ 69.632626][ T6858] asm_exc_invalid_op+0x12/0x20 [ 69.637479][ T6858] RIP: 0010:debug_print_object+0x160/0x250 [ 69.643259][ T6858] Code: dd a0 9f 93 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd a0 9f 93 88 48 c7 c7 00 95 93 88 e8 b2 ae a9 fd <0f> 0b 83 05 db 0b 14 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 69.662847][ T6858] RSP: 0018:ffffc9000168f578 EFLAGS: 00010082 [ 69.668923][ T6858] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 69.676889][ T6858] RDX: ffff888096dec4c0 RSI: ffffffff815d4ef7 RDI: fffff520002d1ea1 [ 69.684851][ T6858] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae620fcb [ 69.692802][ T6858] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89bcc540 [ 69.700769][ T6858] R13: ffffffff81630df0 R14: ffff888095382200 R15: 1ffff920002d1eba [ 69.708731][ T6858] ? calc_wheel_index+0x230/0x230 [ 69.713751][ T6858] ? vprintk_func+0x97/0x1a6 [ 69.718341][ T6858] ? debug_print_object+0x160/0x250 [ 69.723521][ T6858] debug_object_assert_init+0x1f4/0x2e0 [ 69.729076][ T6858] ? find_held_lock+0x2d/0x110 [ 69.733829][ T6858] ? debug_object_init_on_stack+0x20/0x20 [ 69.739544][ T6858] ? __queue_work+0x653/0xff0 [ 69.744218][ T6858] ? lock_downgrade+0x820/0x820 [ 69.749054][ T6858] del_timer+0x6d/0x110 [ 69.753212][ T6858] ? detach_if_pending+0x4a0/0x4a0 [ 69.758305][ T6858] ? __queue_work+0x675/0xff0 [ 69.762979][ T6858] ? lockdep_hardirqs_off+0x66/0xa0 [ 69.768172][ T6858] ? trace_hardirqs_off+0x76/0x210 [ 69.773283][ T6858] cancel_delayed_work+0xe0/0x450 [ 69.778291][ T6858] ? mod_delayed_work_on+0x2e0/0x2e0 [ 69.783573][ T6858] ? lockdep_hardirqs_on+0x6a/0xe0 [ 69.788679][ T6858] ? queue_delayed_work_on+0x12f/0x210 [ 69.794116][ T6858] l2cap_chan_del+0x541/0x1300 [ 69.798870][ T6858] l2cap_chan_close+0x118/0xb10 [ 69.803699][ T6858] ? l2cap_retransmit_all+0x760/0x760 [ 69.809070][ T6858] ? __mutex_unlock_slowpath+0xe2/0x610 [ 69.814605][ T6858] ? rwlock_bug.part.0+0x90/0x90 [ 69.819539][ T6858] ? wait_for_completion+0x260/0x260 [ 69.824813][ T6858] ? __local_bh_enable_ip+0x159/0x250 [ 69.830180][ T6858] ? l2cap_sock_shutdown+0x2c4/0xe90 [ 69.835466][ T6858] ? trace_hardirqs_on+0x5f/0x220 [ 69.840485][ T6858] l2cap_sock_shutdown+0x3b8/0xe90 [ 69.845576][ T6858] ? lock_acquire+0x1f1/0xad0 [ 69.850238][ T6858] ? bt_sock_unlink+0x1d/0x1c0 [ 69.854979][ T6858] ? l2cap_sock_suspend_cb+0x80/0x80 [ 69.860268][ T6858] ? find_held_lock+0x2d/0x110 [ 69.865011][ T6858] ? l2cap_sock_release+0x56/0x1d0 [ 69.870213][ T6858] ? lock_downgrade+0x820/0x820 [ 69.875055][ T6858] ? do_raw_read_unlock+0x70/0x70 [ 69.880115][ T6858] ? __sock_release+0x280/0x280 [ 69.885129][ T6858] l2cap_sock_release+0x63/0x1d0 [ 69.890052][ T6858] ? __sock_release+0x280/0x280 [ 69.894894][ T6858] __sock_release+0xcd/0x280 [ 69.899473][ T6858] sock_close+0x18/0x20 [ 69.903644][ T6858] __fput+0x33c/0x880 [ 69.907610][ T6858] task_work_run+0xdd/0x190 [ 69.912147][ T6858] do_exit+0xb72/0x2a40 [ 69.916308][ T6858] ? lock_acquire+0x1f1/0xad0 [ 69.920961][ T6858] ? find_held_lock+0x2d/0x110 [ 69.925709][ T6858] ? mm_update_next_owner+0x7a0/0x7a0 [ 69.931067][ T6858] ? get_signal+0x332/0x1ee0 [ 69.935669][ T6858] ? lock_downgrade+0x820/0x820 [ 69.940508][ T6858] ? lock_is_held_type+0xb0/0xe0 [ 69.945522][ T6858] do_group_exit+0x125/0x310 [ 69.950091][ T6858] get_signal+0x40b/0x1ee0 [ 69.954488][ T6858] ? __local_bh_enable_ip+0x159/0x250 [ 69.959854][ T6858] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 69.965032][ T6858] do_signal+0x82/0x2520 [ 69.969261][ T6858] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 69.974439][ T6858] ? __sys_connect_file+0x4e/0x1a0 [ 69.979528][ T6858] ? copy_siginfo_to_user32+0xa0/0xa0 [ 69.984886][ T6858] ? __sys_connect_file+0x1a0/0x1a0 [ 69.990083][ T6858] ? lock_is_held_type+0xb0/0xe0 [ 69.995023][ T6858] ? __prepare_exit_to_usermode+0xcc/0x1f0 [ 70.000807][ T6858] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 70.013376][ T6858] __prepare_exit_to_usermode+0x156/0x1f0 [ 70.019083][ T6858] do_syscall_64+0x6c/0xe0 [ 70.023488][ T6858] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 70.029364][ T6858] RIP: 0033:0x446d69 [ 70.033240][ T6858] Code: Bad RIP value. [ 70.037326][ T6858] RSP: 002b:00007ffc69898b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 70.045750][ T6858] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446d69 [ 70.053720][ T6858] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004 [ 70.061671][ T6858] RBP: 00007ffc69898bd0 R08: 0000000000000000 R09: 00000000000000ff [ 70.069633][ T6858] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004 [ 70.077581][ T6858] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 70.086318][ T6858] Kernel Offset: disabled [ 70.090685][ T6858] Rebooting in 86400 seconds..