[ OK ] Reached target Multi-User System. [ 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... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.10' (ECDSA) to the list of known hosts. syzkaller login: [ 58.245824][ T6815] IPVS: ftp: loaded support on port[0] = 21 executing program [ 61.404759][ T3852] Bluetooth: hci0: command 0x0409 tx timeout [ 63.483861][ T3852] Bluetooth: hci0: command 0x041b tx timeout [ 64.343576][ T6843] ------------[ cut here ]------------ [ 64.349326][ T6843] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 64.359196][ T6843] WARNING: CPU: 1 PID: 6843 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 64.368632][ T6843] Kernel panic - not syncing: panic_on_warn set ... [ 64.375219][ T6843] CPU: 1 PID: 6843 Comm: syz-executor149 Not tainted 5.8.0-rc7-syzkaller #0 [ 64.383887][ T6843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.393917][ T6843] Call Trace: [ 64.397191][ T6843] dump_stack+0x18f/0x20d [ 64.401504][ T6843] panic+0x2e3/0x75c [ 64.405391][ T6843] ? __warn_printk+0xf3/0xf3 [ 64.409961][ T6843] ? console_unlock+0x7f0/0xf30 [ 64.414793][ T6843] ? __warn.cold+0x5/0x45 [ 64.419098][ T6843] ? __warn+0xd6/0x1f2 [ 64.423147][ T6843] ? debug_print_object+0x160/0x250 [ 64.428336][ T6843] __warn.cold+0x20/0x45 [ 64.432556][ T6843] ? wake_up_klogd.part.0+0x8c/0xc0 [ 64.437732][ T6843] ? debug_print_object+0x160/0x250 [ 64.442909][ T6843] report_bug+0x1bd/0x210 [ 64.447229][ T6843] handle_bug+0x38/0x90 [ 64.451376][ T6843] exc_invalid_op+0x13/0x40 [ 64.455862][ T6843] asm_exc_invalid_op+0x12/0x20 [ 64.460704][ T6843] RIP: 0010:debug_print_object+0x160/0x250 [ 64.466485][ T6843] Code: dd e0 9f 93 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd e0 9f 93 88 48 c7 c7 40 95 93 88 e8 72 a8 a9 fd <0f> 0b 83 05 5b 06 14 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 64.486077][ T6843] RSP: 0018:ffffc900016e7578 EFLAGS: 00010082 [ 64.492118][ T6843] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 64.500066][ T6843] RDX: ffff88809525a400 RSI: ffffffff815d4ef7 RDI: fffff520002dcea1 [ 64.508026][ T6843] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720fcb [ 64.515972][ T6843] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89bcc540 [ 64.523929][ T6843] R13: ffffffff81630df0 R14: ffff88809802d200 R15: 1ffff920002dceba [ 64.531900][ T6843] ? calc_wheel_index+0x230/0x230 [ 64.536916][ T6843] ? vprintk_func+0x97/0x1a6 [ 64.541495][ T6843] ? debug_print_object+0x160/0x250 [ 64.546673][ T6843] debug_object_assert_init+0x1f4/0x2e0 [ 64.552204][ T6843] ? find_held_lock+0x2d/0x110 [ 64.556944][ T6843] ? debug_object_init_on_stack+0x20/0x20 [ 64.562638][ T6843] ? __queue_work+0x653/0xff0 [ 64.567294][ T6843] ? lock_downgrade+0x820/0x820 [ 64.572132][ T6843] del_timer+0x6d/0x110 [ 64.576268][ T6843] ? detach_if_pending+0x4a0/0x4a0 [ 64.581355][ T6843] ? __queue_work+0x675/0xff0 [ 64.586012][ T6843] ? lockdep_hardirqs_off+0x66/0xa0 [ 64.591194][ T6843] ? trace_hardirqs_off+0x76/0x210 [ 64.596281][ T6843] cancel_delayed_work+0xe0/0x450 [ 64.601282][ T6843] ? mod_delayed_work_on+0x2e0/0x2e0 [ 64.606545][ T6843] ? lockdep_hardirqs_on+0x6a/0xe0 [ 64.611644][ T6843] ? queue_delayed_work_on+0x12f/0x210 [ 64.617079][ T6843] l2cap_chan_del+0x541/0x1300 [ 64.621818][ T6843] l2cap_chan_close+0x118/0xb10 [ 64.626655][ T6843] ? l2cap_retransmit_all+0x760/0x760 [ 64.632017][ T6843] ? __mutex_unlock_slowpath+0xe2/0x610 [ 64.637537][ T6843] ? rwlock_bug.part.0+0x90/0x90 [ 64.642450][ T6843] ? wait_for_completion+0x260/0x260 [ 64.647711][ T6843] ? __local_bh_enable_ip+0x159/0x250 [ 64.653058][ T6843] ? l2cap_sock_shutdown+0x2c4/0xe90 [ 64.658318][ T6843] ? trace_hardirqs_on+0x5f/0x220 [ 64.663317][ T6843] l2cap_sock_shutdown+0x3b8/0xe90 [ 64.668405][ T6843] ? lock_acquire+0x1f1/0xad0 [ 64.673067][ T6843] ? bt_sock_unlink+0x1d/0x1c0 [ 64.677809][ T6843] ? l2cap_sock_suspend_cb+0x80/0x80 [ 64.683076][ T6843] ? find_held_lock+0x2d/0x110 [ 64.687826][ T6843] ? l2cap_sock_release+0x56/0x1d0 [ 64.692925][ T6843] ? lock_downgrade+0x820/0x820 [ 64.697750][ T6843] ? do_raw_read_unlock+0x70/0x70 [ 64.702754][ T6843] ? __sock_release+0x280/0x280 [ 64.707588][ T6843] l2cap_sock_release+0x63/0x1d0 [ 64.712532][ T6843] ? __sock_release+0x280/0x280 [ 64.717355][ T6843] __sock_release+0xcd/0x280 [ 64.721930][ T6843] sock_close+0x18/0x20 [ 64.726063][ T6843] __fput+0x33c/0x880 [ 64.730151][ T6843] task_work_run+0xdd/0x190 [ 64.734654][ T6843] do_exit+0xb72/0x2a40 [ 64.738788][ T6843] ? lock_acquire+0x1f1/0xad0 [ 64.743450][ T6843] ? find_held_lock+0x2d/0x110 [ 64.748190][ T6843] ? mm_update_next_owner+0x7a0/0x7a0 [ 64.753550][ T6843] ? get_signal+0x332/0x1ee0 [ 64.758131][ T6843] ? lock_downgrade+0x820/0x820 [ 64.762960][ T6843] ? lock_is_held_type+0xb0/0xe0 [ 64.767879][ T6843] do_group_exit+0x125/0x310 [ 64.772458][ T6843] get_signal+0x40b/0x1ee0 [ 64.776849][ T6843] ? __local_bh_enable_ip+0x159/0x250 [ 64.782207][ T6843] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 64.787384][ T6843] do_signal+0x82/0x2520 [ 64.791603][ T6843] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 64.796789][ T6843] ? __sys_connect_file+0x4e/0x1a0 [ 64.801971][ T6843] ? copy_siginfo_to_user32+0xa0/0xa0 [ 64.807332][ T6843] ? __sys_connect_file+0x1a0/0x1a0 [ 64.812517][ T6843] ? lock_is_held_type+0xb0/0xe0 [ 64.817445][ T6843] ? __prepare_exit_to_usermode+0xcc/0x1f0 [ 64.823235][ T6843] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.829203][ T6843] __prepare_exit_to_usermode+0x156/0x1f0 [ 64.834900][ T6843] do_syscall_64+0x6c/0xe0 [ 64.839301][ T6843] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.845167][ T6843] RIP: 0033:0x446d69 [ 64.849028][ T6843] Code: Bad RIP value. [ 64.853077][ T6843] RSP: 002b:00007ffcfaf9c9a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 64.861461][ T6843] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446d69 [ 64.869410][ T6843] RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000004 [ 64.877355][ T6843] RBP: 00007ffcfaf9c9e0 R08: 0000000000000000 R09: 00000000000000ff [ 64.885301][ T6843] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004 [ 64.893255][ T6843] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 64.902492][ T6843] Kernel Offset: disabled [ 64.906874][ T6843] Rebooting in 86400 seconds..