[ 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 '10.128.0.220' (ECDSA) to the list of known hosts. syzkaller login: [ 67.179339][ T6868] IPVS: ftp: loaded support on port[0] = 21 executing program [ 69.204165][ T2585] Bluetooth: hci0: command 0x0409 tx timeout [ 71.283035][ T2585] Bluetooth: hci0: command 0x041b tx timeout [ 72.270547][ T6900] ------------[ cut here ]------------ [ 72.276494][ T6900] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 72.286583][ T6900] WARNING: CPU: 1 PID: 6900 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 72.296173][ T6900] Kernel panic - not syncing: panic_on_warn set ... [ 72.302756][ T6900] CPU: 1 PID: 6900 Comm: syz-executor407 Not tainted 5.9.0-rc1-syzkaller #0 [ 72.311405][ T6900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.321450][ T6900] Call Trace: [ 72.324754][ T6900] dump_stack+0x18f/0x20d [ 72.329076][ T6900] panic+0x2e3/0x75c [ 72.333071][ T6900] ? __warn_printk+0xf3/0xf3 [ 72.337682][ T6900] ? console_unlock+0x7f0/0xf30 [ 72.342546][ T6900] ? __warn.cold+0x5/0x4a [ 72.346918][ T6900] ? __warn+0xd6/0x1f2 [ 72.350999][ T6900] ? debug_print_object+0x160/0x250 [ 72.356187][ T6900] __warn.cold+0x20/0x4a [ 72.360424][ T6900] ? debug_print_object+0x160/0x250 [ 72.365626][ T6900] report_bug+0x1bd/0x210 [ 72.369944][ T6900] handle_bug+0x38/0x90 [ 72.374081][ T6900] ? __warn_printk+0xc6/0xf3 [ 72.378651][ T6900] exc_invalid_op+0x14/0x40 [ 72.383165][ T6900] asm_exc_invalid_op+0x12/0x20 [ 72.388031][ T6900] RIP: 0010:debug_print_object+0x160/0x250 [ 72.394344][ T6900] Code: dd e0 23 94 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd e0 23 94 88 48 c7 c7 40 19 94 88 e8 42 3d a6 fd <0f> 0b 83 05 83 50 13 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 72.413945][ T6900] RSP: 0018:ffffc90004937570 EFLAGS: 00010086 [ 72.419995][ T6900] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 72.427947][ T6900] RDX: ffff88808de26040 RSI: ffffffff815dafc7 RDI: fffff52000926ea0 [ 72.435902][ T6900] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720f8b [ 72.443867][ T6900] R10: 0000000000000000 R11: 0000000030393654 R12: ffffffff89be28e0 [ 72.451830][ T6900] R13: ffffffff81638450 R14: ffff8880a8cc7200 R15: 1ffff92000926eb9 [ 72.459807][ T6900] ? calc_wheel_index+0x3f0/0x3f0 [ 72.464832][ T6900] ? vprintk_func+0x97/0x1a6 [ 72.469409][ T6900] debug_object_assert_init+0x1f4/0x2e0 [ 72.474951][ T6900] ? find_held_lock+0x2d/0x110 [ 72.479698][ T6900] ? debug_object_init_on_stack+0x20/0x20 [ 72.485411][ T6900] ? __queue_work+0x61a/0xf20 [ 72.490159][ T6900] ? lock_downgrade+0x830/0x830 [ 72.495615][ T6900] del_timer+0x6d/0x110 [ 72.499749][ T6900] ? detach_if_pending+0x4d0/0x4d0 [ 72.504842][ T6900] ? __queue_work+0x63c/0xf20 [ 72.509501][ T6900] ? lockdep_hardirqs_off+0x89/0xc0 [ 72.514691][ T6900] ? trace_hardirqs_off+0x76/0x210 [ 72.519780][ T6900] cancel_delayed_work+0xe0/0x450 [ 72.524806][ T6900] ? mod_delayed_work_on+0x2e0/0x2e0 [ 72.530172][ T6900] ? lockdep_hardirqs_on+0x76/0xf0 [ 72.535262][ T6900] ? queue_delayed_work_on+0x12f/0x210 [ 72.540844][ T6900] l2cap_chan_del+0x541/0x1300 [ 72.545608][ T6900] l2cap_chan_close+0x118/0xb10 [ 72.550456][ T6900] ? l2cap_retransmit_all+0x760/0x760 [ 72.555808][ T6900] ? __mutex_unlock_slowpath+0xe2/0x610 [ 72.561334][ T6900] ? mark_held_locks+0x9f/0xe0 [ 72.566083][ T6900] ? wait_for_completion+0x260/0x260 [ 72.571347][ T6900] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 72.577325][ T6900] ? l2cap_sock_shutdown+0x2c4/0xe90 [ 72.582610][ T6900] ? trace_hardirqs_on+0x5f/0x220 [ 72.587618][ T6900] l2cap_sock_shutdown+0x3b8/0xe90 [ 72.592715][ T6900] ? lock_acquire+0x1f1/0xad0 [ 72.597370][ T6900] ? bt_sock_unlink+0x1d/0x1c0 [ 72.602111][ T6900] ? l2cap_sock_suspend_cb+0x80/0x80 [ 72.607396][ T6900] ? find_held_lock+0x2d/0x110 [ 72.612151][ T6900] ? l2cap_sock_release+0x56/0x1d0 [ 72.617251][ T6900] ? lock_downgrade+0x830/0x830 [ 72.622081][ T6900] ? do_raw_read_unlock+0x70/0x70 [ 72.627093][ T6900] l2cap_sock_release+0x63/0x1d0 [ 72.632033][ T6900] __sock_release+0xcd/0x280 [ 72.636640][ T6900] sock_close+0x18/0x20 [ 72.640801][ T6900] __fput+0x285/0x920 [ 72.644767][ T6900] ? __sock_release+0x280/0x280 [ 72.649601][ T6900] task_work_run+0xdd/0x190 [ 72.654086][ T6900] do_exit+0xb7d/0x29f0 [ 72.658219][ T6900] ? lock_acquire+0x1f1/0xad0 [ 72.662875][ T6900] ? find_held_lock+0x2d/0x110 [ 72.667703][ T6900] ? mm_update_next_owner+0x7a0/0x7a0 [ 72.673063][ T6900] ? get_signal+0x34f/0x1f00 [ 72.677654][ T6900] ? lock_downgrade+0x830/0x830 [ 72.682487][ T6900] ? lock_is_held_type+0xbb/0xf0 [ 72.687407][ T6900] do_group_exit+0x125/0x310 [ 72.691981][ T6900] get_signal+0x428/0x1f00 [ 72.696384][ T6900] ? __local_bh_enable_ip+0xd1/0x190 [ 72.701652][ T6900] arch_do_signal+0x82/0x2520 [ 72.706309][ T6900] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 72.711486][ T6900] ? __sys_connect_file+0x4e/0x1a0 [ 72.716575][ T6900] ? copy_siginfo_to_user32+0xa0/0xa0 [ 72.721920][ T6900] ? __sys_connect+0x10a/0x190 [ 72.726661][ T6900] ? __sys_connect_file+0x1a0/0x1a0 [ 72.731842][ T6900] ? exit_to_user_mode_prepare+0xb9/0x1c0 [ 72.737543][ T6900] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 72.743513][ T6900] exit_to_user_mode_prepare+0x15d/0x1c0 [ 72.749133][ T6900] syscall_exit_to_user_mode+0x59/0x2b0 [ 72.754659][ T6900] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 72.760544][ T6900] RIP: 0033:0x446d99 [ 72.764408][ T6900] Code: Bad RIP value. [ 72.768452][ T6900] RSP: 002b:00007ffe1c515a98 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 72.776849][ T6900] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446d99 [ 72.784799][ T6900] RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000004 [ 72.792746][ T6900] RBP: 0000000000000003 R08: 00000000000000ff R09: 00000000000000ff [ 72.800695][ T6900] R10: 0000000000000004 R11: 0000000000000246 R12: 000000000186f850 [ 72.808644][ T6900] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 72.818043][ T6900] Kernel Offset: disabled [ 72.822431][ T6900] Rebooting in 86400 seconds..