[ 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 '10.128.0.232' (ECDSA) to the list of known hosts. syzkaller login: [ 59.910890][ T6838] IPVS: ftp: loaded support on port[0] = 21 executing program [ 63.089688][ T3911] Bluetooth: hci0: command 0x0409 tx timeout [ 65.168675][ T3911] Bluetooth: hci0: command 0x041b tx timeout [ 66.056769][ T6866] ------------[ cut here ]------------ [ 66.062588][ T6866] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 66.072455][ T6866] WARNING: CPU: 0 PID: 6866 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 66.082053][ T6866] Kernel panic - not syncing: panic_on_warn set ... [ 66.088615][ T6866] CPU: 0 PID: 6866 Comm: syz-executor534 Not tainted 5.8.0-rc6-syzkaller #0 [ 66.097254][ T6866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.107285][ T6866] Call Trace: [ 66.110560][ T6866] dump_stack+0x18f/0x20d [ 66.114870][ T6866] panic+0x2e3/0x75c [ 66.118742][ T6866] ? __warn_printk+0xf3/0xf3 [ 66.123308][ T6866] ? console_unlock+0x7f0/0xf30 [ 66.128133][ T6866] ? __warn.cold+0x5/0x45 [ 66.132435][ T6866] ? __warn+0xd6/0x1f2 [ 66.136481][ T6866] ? debug_print_object+0x160/0x250 [ 66.141656][ T6866] __warn.cold+0x20/0x45 [ 66.145871][ T6866] ? wake_up_klogd.part.0+0x8c/0xc0 [ 66.151051][ T6866] ? debug_print_object+0x160/0x250 [ 66.156225][ T6866] report_bug+0x1bd/0x210 [ 66.160537][ T6866] handle_bug+0x38/0x90 [ 66.164678][ T6866] exc_invalid_op+0x13/0x40 [ 66.169172][ T6866] asm_exc_invalid_op+0x12/0x20 [ 66.174002][ T6866] RIP: 0010:debug_print_object+0x160/0x250 [ 66.179784][ T6866] 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 [ 66.199391][ T6866] RSP: 0018:ffffc900052f7578 EFLAGS: 00010082 [ 66.205428][ T6866] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 66.213371][ T6866] RDX: ffff8880961aa440 RSI: ffffffff815d4ef7 RDI: fffff52000a5eea1 [ 66.221338][ T6866] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae620fcb [ 66.229284][ T6866] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89bcc540 [ 66.237231][ T6866] R13: ffffffff81630df0 R14: ffff8880a1ba5200 R15: 1ffff92000a5eeba [ 66.245184][ T6866] ? calc_wheel_index+0x230/0x230 [ 66.250189][ T6866] ? vprintk_func+0x97/0x1a6 [ 66.254886][ T6866] ? debug_print_object+0x160/0x250 [ 66.260071][ T6866] debug_object_assert_init+0x1f4/0x2e0 [ 66.265597][ T6866] ? find_held_lock+0x2d/0x110 [ 66.270339][ T6866] ? debug_object_init_on_stack+0x20/0x20 [ 66.276034][ T6866] ? __queue_work+0x653/0xff0 [ 66.280695][ T6866] ? lock_downgrade+0x820/0x820 [ 66.285525][ T6866] del_timer+0x6d/0x110 [ 66.289656][ T6866] ? detach_if_pending+0x4a0/0x4a0 [ 66.294755][ T6866] ? __queue_work+0x675/0xff0 [ 66.299413][ T6866] ? lockdep_hardirqs_off+0x66/0xa0 [ 66.304585][ T6866] ? trace_hardirqs_off+0x76/0x210 [ 66.309672][ T6866] cancel_delayed_work+0xe0/0x450 [ 66.314675][ T6866] ? mod_delayed_work_on+0x2e0/0x2e0 [ 66.319940][ T6866] ? lockdep_hardirqs_on+0x6a/0xe0 [ 66.325028][ T6866] ? queue_delayed_work_on+0x12f/0x210 [ 66.330478][ T6866] l2cap_chan_del+0x541/0x1300 [ 66.335222][ T6866] l2cap_chan_close+0x118/0xb10 [ 66.340054][ T6866] ? l2cap_retransmit_all+0x760/0x760 [ 66.345402][ T6866] ? __mutex_unlock_slowpath+0xe2/0x610 [ 66.350928][ T6866] ? rwlock_bug.part.0+0x90/0x90 [ 66.355840][ T6866] ? wait_for_completion+0x260/0x260 [ 66.361112][ T6866] ? __local_bh_enable_ip+0x159/0x250 [ 66.366458][ T6866] ? l2cap_sock_shutdown+0x2c4/0xe90 [ 66.371717][ T6866] ? trace_hardirqs_on+0x5f/0x220 [ 66.376720][ T6866] l2cap_sock_shutdown+0x3b8/0xe90 [ 66.381808][ T6866] ? lock_acquire+0x1f1/0xad0 [ 66.386496][ T6866] ? bt_sock_unlink+0x1d/0x1c0 [ 66.391236][ T6866] ? l2cap_sock_suspend_cb+0x80/0x80 [ 66.396493][ T6866] ? find_held_lock+0x2d/0x110 [ 66.401232][ T6866] ? l2cap_sock_release+0x56/0x1d0 [ 66.406326][ T6866] ? lock_downgrade+0x820/0x820 [ 66.411149][ T6866] ? do_raw_read_unlock+0x70/0x70 [ 66.416154][ T6866] ? __sock_release+0x280/0x280 [ 66.420978][ T6866] l2cap_sock_release+0x63/0x1d0 [ 66.425893][ T6866] ? __sock_release+0x280/0x280 [ 66.430728][ T6866] __sock_release+0xcd/0x280 [ 66.435292][ T6866] sock_close+0x18/0x20 [ 66.439428][ T6866] __fput+0x33c/0x880 [ 66.443386][ T6866] task_work_run+0xdd/0x190 [ 66.447871][ T6866] do_exit+0xb72/0x2a40 [ 66.452003][ T6866] ? lock_acquire+0x1f1/0xad0 [ 66.456653][ T6866] ? find_held_lock+0x2d/0x110 [ 66.461391][ T6866] ? mm_update_next_owner+0x7a0/0x7a0 [ 66.466732][ T6866] ? get_signal+0x332/0x1ee0 [ 66.471303][ T6866] ? lock_downgrade+0x820/0x820 [ 66.476132][ T6866] ? lock_is_held_type+0xb0/0xe0 [ 66.481057][ T6866] do_group_exit+0x125/0x310 [ 66.485667][ T6866] get_signal+0x40b/0x1ee0 [ 66.490167][ T6866] ? __local_bh_enable_ip+0x159/0x250 [ 66.495532][ T6866] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 66.500717][ T6866] do_signal+0x82/0x2520 [ 66.504938][ T6866] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 66.510257][ T6866] ? __sys_connect_file+0x4e/0x1a0 [ 66.515347][ T6866] ? copy_siginfo_to_user32+0xa0/0xa0 [ 66.520692][ T6866] ? __sys_connect_file+0x1a0/0x1a0 [ 66.525892][ T6866] ? lock_is_held_type+0xb0/0xe0 [ 66.530816][ T6866] ? __prepare_exit_to_usermode+0xcc/0x1f0 [ 66.536600][ T6866] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.542594][ T6866] __prepare_exit_to_usermode+0x156/0x1f0 [ 66.548287][ T6866] do_syscall_64+0x6c/0xe0 [ 66.552681][ T6866] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.558547][ T6866] RIP: 0033:0x446d69 [ 66.562411][ T6866] Code: Bad RIP value. [ 66.566446][ T6866] RSP: 002b:00007ffd49a95ed8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 66.574829][ T6866] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446d69 [ 66.582773][ T6866] RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000004 [ 66.590786][ T6866] RBP: 00007ffd49a95f10 R08: 0000000000000000 R09: 00000000000000ff [ 66.598745][ T6866] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004 [ 66.606687][ T6866] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 66.615929][ T6866] Kernel Offset: disabled [ 66.620301][ T6866] Rebooting in 86400 seconds..