[ 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 '10.128.0.4' (ECDSA) to the list of known hosts. syzkaller login: [ 61.543027][ T6825] IPVS: ftp: loaded support on port[0] = 21 executing program [ 64.692068][ T37] Bluetooth: hci0: command 0x0409 tx timeout [ 66.771209][ T37] Bluetooth: hci0: command 0x041b tx timeout [ 67.653879][ T6856] ------------[ cut here ]------------ [ 67.659532][ T6856] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 67.669416][ T6856] WARNING: CPU: 1 PID: 6856 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 67.678844][ T6856] Kernel panic - not syncing: panic_on_warn set ... [ 67.685406][ T6856] CPU: 1 PID: 6856 Comm: syz-executor711 Not tainted 5.8.0-syzkaller #0 [ 67.693699][ T6856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.703730][ T6856] Call Trace: [ 67.707009][ T6856] dump_stack+0x18f/0x20d [ 67.711331][ T6856] panic+0x2e3/0x75c [ 67.715211][ T6856] ? __warn_printk+0xf3/0xf3 [ 67.719778][ T6856] ? console_unlock+0x7f0/0xf30 [ 67.724607][ T6856] ? __warn.cold+0x5/0x45 [ 67.728918][ T6856] ? __warn+0xd6/0x1f2 [ 67.732964][ T6856] ? debug_print_object+0x160/0x250 [ 67.738135][ T6856] __warn.cold+0x20/0x45 [ 67.742354][ T6856] ? debug_print_object+0x160/0x250 [ 67.747536][ T6856] report_bug+0x1bd/0x210 [ 67.751848][ T6856] handle_bug+0x38/0x90 [ 67.755987][ T6856] ? __warn_printk+0xc6/0xf3 [ 67.760549][ T6856] exc_invalid_op+0x14/0x40 [ 67.765036][ T6856] asm_exc_invalid_op+0x12/0x20 [ 67.769865][ T6856] RIP: 0010:debug_print_object+0x160/0x250 [ 67.775647][ T6856] Code: dd e0 cf 93 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd e0 cf 93 88 48 c7 c7 40 c5 93 88 e8 42 e4 a8 fd <0f> 0b 83 05 23 3c 15 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 67.795225][ T6856] RSP: 0018:ffffc90005547570 EFLAGS: 00010086 [ 67.801265][ T6856] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 67.809263][ T6856] RDX: ffff8880966d6340 RSI: ffffffff815d8eb7 RDI: fffff52000aa8ea0 [ 67.817211][ T6856] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720fcb [ 67.825156][ T6856] R10: 0000000000000000 R11: 0000000035383654 R12: ffffffff89be2120 [ 67.833150][ T6856] R13: ffffffff81636660 R14: ffff8880a69d1200 R15: 1ffff92000aa8eb9 [ 67.841105][ T6856] ? calc_wheel_index+0x3f0/0x3f0 [ 67.846103][ T6856] ? vprintk_func+0x97/0x1a6 [ 67.850672][ T6856] debug_object_assert_init+0x1f4/0x2e0 [ 67.856192][ T6856] ? find_held_lock+0x2d/0x110 [ 67.860928][ T6856] ? debug_object_init_on_stack+0x20/0x20 [ 67.866620][ T6856] ? __queue_work+0x61a/0xf20 [ 67.871274][ T6856] ? lock_downgrade+0x830/0x830 [ 67.876101][ T6856] del_timer+0x6d/0x110 [ 67.880228][ T6856] ? detach_if_pending+0x4d0/0x4d0 [ 67.885311][ T6856] ? __queue_work+0x63c/0xf20 [ 67.889961][ T6856] ? lockdep_hardirqs_off+0x89/0xc0 [ 67.895134][ T6856] ? trace_hardirqs_off+0x76/0x210 [ 67.900218][ T6856] cancel_delayed_work+0xe0/0x450 [ 67.905217][ T6856] ? mod_delayed_work_on+0x2e0/0x2e0 [ 67.910474][ T6856] ? lockdep_hardirqs_on+0x76/0xf0 [ 67.915556][ T6856] ? queue_delayed_work_on+0x12f/0x210 [ 67.921000][ T6856] l2cap_chan_del+0x541/0x1300 [ 67.925739][ T6856] l2cap_chan_close+0x118/0xb10 [ 67.930563][ T6856] ? l2cap_retransmit_all+0x760/0x760 [ 67.935956][ T6856] ? __mutex_unlock_slowpath+0xe2/0x610 [ 67.941474][ T6856] ? mark_held_locks+0x9f/0xe0 [ 67.946209][ T6856] ? wait_for_completion+0x260/0x260 [ 67.951467][ T6856] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 67.957422][ T6856] ? l2cap_sock_shutdown+0x2c4/0xe90 [ 67.962680][ T6856] ? trace_hardirqs_on+0x5f/0x220 [ 67.967701][ T6856] l2cap_sock_shutdown+0x3b8/0xe90 [ 67.972790][ T6856] ? lock_acquire+0x1f1/0xad0 [ 67.977441][ T6856] ? bt_sock_unlink+0x1d/0x1c0 [ 67.982178][ T6856] ? l2cap_sock_suspend_cb+0x80/0x80 [ 67.987434][ T6856] ? find_held_lock+0x2d/0x110 [ 67.992173][ T6856] ? l2cap_sock_release+0x56/0x1d0 [ 67.997257][ T6856] ? lock_downgrade+0x830/0x830 [ 68.002096][ T6856] ? do_raw_read_unlock+0x70/0x70 [ 68.007099][ T6856] ? __sock_release+0x280/0x280 [ 68.011922][ T6856] l2cap_sock_release+0x63/0x1d0 [ 68.016851][ T6856] ? __sock_release+0x280/0x280 [ 68.021684][ T6856] __sock_release+0xcd/0x280 [ 68.026257][ T6856] sock_close+0x18/0x20 [ 68.030393][ T6856] __fput+0x33c/0x880 [ 68.034356][ T6856] task_work_run+0xdd/0x190 [ 68.038844][ T6856] do_exit+0xb7d/0x29f0 [ 68.042979][ T6856] ? lock_acquire+0x1f1/0xad0 [ 68.047631][ T6856] ? find_held_lock+0x2d/0x110 [ 68.052374][ T6856] ? mm_update_next_owner+0x7a0/0x7a0 [ 68.057717][ T6856] ? get_signal+0x332/0x1ee0 [ 68.062281][ T6856] ? lock_downgrade+0x830/0x830 [ 68.067107][ T6856] ? lock_is_held_type+0xbb/0xf0 [ 68.072024][ T6856] do_group_exit+0x125/0x310 [ 68.076588][ T6856] get_signal+0x40b/0x1ee0 [ 68.080986][ T6856] ? lockdep_hardirqs_on+0x76/0xf0 [ 68.086087][ T6856] ? __local_bh_enable_ip+0xd1/0x190 [ 68.091346][ T6856] ? l2cap_sock_connect+0x379/0x690 [ 68.096522][ T6856] arch_do_signal+0x82/0x2520 [ 68.101174][ T6856] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 68.106344][ T6856] ? __sys_connect_file+0x4e/0x1a0 [ 68.111429][ T6856] ? copy_siginfo_to_user32+0xa0/0xa0 [ 68.116769][ T6856] ? __sys_connect+0x109/0x190 [ 68.121506][ T6856] ? __sys_connect_file+0x1a0/0x1a0 [ 68.126682][ T6856] ? exit_to_user_mode_prepare+0xce/0x1d0 [ 68.132373][ T6856] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 68.138328][ T6856] exit_to_user_mode_prepare+0x172/0x1d0 [ 68.143935][ T6856] syscall_exit_to_user_mode+0x59/0x2b0 [ 68.149457][ T6856] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.155320][ T6856] RIP: 0033:0x446d89 [ 68.159182][ T6856] Code: Bad RIP value. [ 68.163219][ T6856] RSP: 002b:00007ffc675b0ec8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 68.171600][ T6856] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446d89 [ 68.179544][ T6856] RDX: 0000000000000080 RSI: 00000000200000c0 RDI: 0000000000000004 [ 68.187488][ T6856] RBP: 00007ffc675b0f00 R08: 0000000000000000 R09: 00000000000000ff [ 68.195434][ T6856] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004 [ 68.203378][ T6856] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 68.212557][ T6856] Kernel Offset: disabled [ 68.216925][ T6856] Rebooting in 86400 seconds..