[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.0' (ECDSA) to the list of known hosts. syzkaller login: [ 61.912301][ T6815] IPVS: ftp: loaded support on port[0] = 21 executing program [ 65.097573][ T3424] Bluetooth: hci0: command 0x0409 tx timeout [ 67.176731][ T2722] Bluetooth: hci0: command 0x041b tx timeout [ 68.057412][ T6843] ------------[ cut here ]------------ [ 68.063265][ T6843] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 68.073138][ T6843] WARNING: CPU: 0 PID: 6843 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 68.082626][ T6843] Kernel panic - not syncing: panic_on_warn set ... [ 68.089225][ T6843] CPU: 0 PID: 6843 Comm: syz-executor966 Not tainted 5.8.0-syzkaller #0 [ 68.097543][ T6843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.107585][ T6843] Call Trace: [ 68.110866][ T6843] dump_stack+0x18f/0x20d [ 68.115187][ T6843] panic+0x2e3/0x75c [ 68.119078][ T6843] ? __warn_printk+0xf3/0xf3 [ 68.123656][ T6843] ? console_unlock+0x7f0/0xf30 [ 68.128508][ T6843] ? __warn.cold+0x5/0x45 [ 68.132837][ T6843] ? __warn+0xd6/0x1f2 [ 68.136930][ T6843] ? debug_print_object+0x160/0x250 [ 68.142114][ T6843] __warn.cold+0x20/0x45 [ 68.146417][ T6843] ? wake_up_klogd.part.0+0x8c/0xc0 [ 68.151744][ T6843] ? debug_print_object+0x160/0x250 [ 68.156942][ T6843] report_bug+0x1bd/0x210 [ 68.161278][ T6843] handle_bug+0x38/0x90 [ 68.165440][ T6843] exc_invalid_op+0x13/0x40 [ 68.169947][ T6843] asm_exc_invalid_op+0x12/0x20 [ 68.174785][ T6843] RIP: 0010:debug_print_object+0x160/0x250 [ 68.180603][ T6843] Code: dd 20 ab 93 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 20 ab 93 88 48 c7 c7 80 a0 93 88 e8 d2 bb a9 fd <0f> 0b 83 05 1b 33 14 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 68.200305][ T6843] RSP: 0018:ffffc900017ef578 EFLAGS: 00010082 [ 68.206369][ T6843] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 68.214348][ T6843] RDX: ffff888096304300 RSI: ffffffff815d4997 RDI: fffff520002fdea1 [ 68.222326][ T6843] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae620fcb [ 68.230497][ T6843] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89bcc540 [ 68.238557][ T6843] R13: ffffffff81630890 R14: ffff8880a6941200 R15: 1ffff920002fdeba [ 68.246541][ T6843] ? calc_wheel_index+0x230/0x230 [ 68.251587][ T6843] ? vprintk_func+0x97/0x1a6 [ 68.256189][ T6843] ? debug_print_object+0x160/0x250 [ 68.261403][ T6843] debug_object_assert_init+0x1f4/0x2e0 [ 68.266951][ T6843] ? find_held_lock+0x2d/0x110 [ 68.271703][ T6843] ? debug_object_init_on_stack+0x20/0x20 [ 68.277408][ T6843] ? __queue_work+0x653/0xff0 [ 68.282223][ T6843] ? lock_downgrade+0x820/0x820 [ 68.287088][ T6843] del_timer+0x6d/0x110 [ 68.291238][ T6843] ? detach_if_pending+0x4a0/0x4a0 [ 68.296364][ T6843] ? __queue_work+0x675/0xff0 [ 68.301032][ T6843] ? lockdep_hardirqs_off+0x66/0xa0 [ 68.306240][ T6843] ? trace_hardirqs_off+0x76/0x210 [ 68.311343][ T6843] cancel_delayed_work+0xe0/0x450 [ 68.316363][ T6843] ? mod_delayed_work_on+0x2e0/0x2e0 [ 68.321647][ T6843] ? lockdep_hardirqs_on+0x6a/0xe0 [ 68.326756][ T6843] ? queue_delayed_work_on+0x12f/0x210 [ 68.332202][ T6843] l2cap_chan_del+0x541/0x1300 [ 68.336971][ T6843] l2cap_chan_close+0x118/0xb10 [ 68.341813][ T6843] ? l2cap_retransmit_all+0x760/0x760 [ 68.347188][ T6843] ? __mutex_unlock_slowpath+0xe2/0x610 [ 68.352712][ T6843] ? rwlock_bug.part.0+0x90/0x90 [ 68.357633][ T6843] ? wait_for_completion+0x260/0x260 [ 68.362908][ T6843] ? __local_bh_enable_ip+0x159/0x250 [ 68.368263][ T6843] ? l2cap_sock_shutdown+0x2c4/0xe90 [ 68.373544][ T6843] ? trace_hardirqs_on+0x5f/0x220 [ 68.378572][ T6843] l2cap_sock_shutdown+0x3b8/0xe90 [ 68.383668][ T6843] ? lock_acquire+0x1f1/0xad0 [ 68.388328][ T6843] ? bt_sock_unlink+0x1d/0x1c0 [ 68.393073][ T6843] ? l2cap_sock_suspend_cb+0x80/0x80 [ 68.398342][ T6843] ? find_held_lock+0x2d/0x110 [ 68.403164][ T6843] ? l2cap_sock_release+0x56/0x1d0 [ 68.408276][ T6843] ? lock_downgrade+0x820/0x820 [ 68.413134][ T6843] ? do_raw_read_unlock+0x70/0x70 [ 68.419381][ T6843] ? __sock_release+0x280/0x280 [ 68.424228][ T6843] l2cap_sock_release+0x63/0x1d0 [ 68.429175][ T6843] ? __sock_release+0x280/0x280 [ 68.434053][ T6843] __sock_release+0xcd/0x280 [ 68.438663][ T6843] sock_close+0x18/0x20 [ 68.442828][ T6843] __fput+0x33c/0x880 [ 68.446805][ T6843] task_work_run+0xdd/0x190 [ 68.451417][ T6843] do_exit+0xb72/0x2a40 [ 68.455564][ T6843] ? lock_acquire+0x1f1/0xad0 [ 68.460314][ T6843] ? find_held_lock+0x2d/0x110 [ 68.466281][ T6843] ? mm_update_next_owner+0x7a0/0x7a0 [ 68.471652][ T6843] ? get_signal+0x332/0x1ee0 [ 68.476241][ T6843] ? lock_downgrade+0x820/0x820 [ 68.481088][ T6843] ? lock_is_held_type+0xb0/0xe0 [ 68.486033][ T6843] do_group_exit+0x125/0x310 [ 68.490618][ T6843] get_signal+0x40b/0x1ee0 [ 68.495374][ T6843] ? __local_bh_enable_ip+0x159/0x250 [ 68.500735][ T6843] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 68.505932][ T6843] do_signal+0x82/0x2520 [ 68.510173][ T6843] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 68.515351][ T6843] ? __sys_connect_file+0x4e/0x1a0 [ 68.520448][ T6843] ? copy_siginfo_to_user32+0xa0/0xa0 [ 68.525815][ T6843] ? __sys_connect_file+0x1a0/0x1a0 [ 68.531000][ T6843] ? lock_is_held_type+0xb0/0xe0 [ 68.535930][ T6843] ? __prepare_exit_to_usermode+0xcc/0x1f0 [ 68.541736][ T6843] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 68.547708][ T6843] __prepare_exit_to_usermode+0x156/0x1f0 [ 68.553417][ T6843] do_syscall_64+0x6c/0xe0 [ 68.557837][ T6843] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.563708][ T6843] RIP: 0033:0x446dc9 [ 68.567574][ T6843] Code: Bad RIP value. [ 68.571614][ T6843] RSP: 002b:00007ffeaf49f738 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 68.580012][ T6843] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446dc9 [ 68.587985][ T6843] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004 [ 68.595940][ T6843] RBP: 00007ffeaf49f770 R08: 0000000000000000 R09: 00000000000000ff [ 68.603894][ T6843] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004 [ 68.611848][ T6843] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 68.620969][ T6843] Kernel Offset: disabled [ 68.625344][ T6843] Rebooting in 86400 seconds..