Warning: Permanently added '10.128.1.0' (ECDSA) to the list of known hosts. syzkaller login: [ 58.634245][ T6865] IPVS: ftp: loaded support on port[0] = 21 executing program [ 61.751483][ T2587] Bluetooth: hci0: command 0x0409 tx timeout [ 63.831033][ T2582] Bluetooth: hci0: command 0x041b tx timeout [ 64.712378][ T6895] ------------[ cut here ]------------ [ 64.718033][ T6895] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 64.727944][ T6895] WARNING: CPU: 1 PID: 6895 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 64.737366][ T6895] Kernel panic - not syncing: panic_on_warn set ... [ 64.743978][ T6895] CPU: 1 PID: 6895 Comm: syz-executor105 Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 64.753835][ T6895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.763892][ T6895] Call Trace: [ 64.767188][ T6895] dump_stack+0x18f/0x20d [ 64.771525][ T6895] panic+0x2e3/0x75c [ 64.775431][ T6895] ? __warn_printk+0xf3/0xf3 [ 64.780035][ T6895] ? __warn.cold+0x5/0x4a [ 64.784463][ T6895] ? __warn+0xd6/0x1f2 [ 64.788539][ T6895] ? debug_print_object+0x160/0x250 [ 64.793741][ T6895] __warn.cold+0x20/0x4a [ 64.797988][ T6895] ? debug_print_object+0x160/0x250 [ 64.803194][ T6895] report_bug+0x1bd/0x210 [ 64.807532][ T6895] handle_bug+0x38/0x90 [ 64.811689][ T6895] ? __warn_printk+0xc6/0xf3 [ 64.816281][ T6895] exc_invalid_op+0x14/0x40 [ 64.820787][ T6895] asm_exc_invalid_op+0x12/0x20 [ 64.825642][ T6895] RIP: 0010:debug_print_object+0x160/0x250 [ 64.831450][ T6895] Code: dd 60 16 94 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 60 16 94 88 48 c7 c7 c0 0b 94 88 e8 92 36 a6 fd <0f> 0b 83 05 b3 d2 1a 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 64.851046][ T6895] RSP: 0018:ffffc900016c7570 EFLAGS: 00010086 [ 64.857092][ T6895] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 64.865044][ T6895] RDX: ffff888095932080 RSI: ffffffff815d86e7 RDI: fffff520002d8ea0 [ 64.872994][ T6895] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720f8b [ 64.880942][ T6895] R10: 0000000000000000 R11: 203a47554245444f R12: ffffffff89c5e220 [ 64.888907][ T6895] R13: ffffffff81639390 R14: ffff888094a59200 R15: 1ffff920002d8eb9 [ 64.896864][ T6895] ? calc_wheel_index+0x3f0/0x3f0 [ 64.901964][ T6895] ? vprintk_func+0x97/0x1a6 [ 64.906534][ T6895] debug_object_assert_init+0x1f4/0x2e0 [ 64.912145][ T6895] ? find_held_lock+0x2d/0x110 [ 64.916884][ T6895] ? debug_object_init_on_stack+0x20/0x20 [ 64.922624][ T6895] ? __queue_work+0x61a/0xf20 [ 64.927278][ T6895] ? lock_downgrade+0x830/0x830 [ 64.932111][ T6895] del_timer+0x6d/0x110 [ 64.940061][ T6895] ? detach_if_pending+0x4d0/0x4d0 [ 64.945165][ T6895] ? __queue_work+0x63c/0xf20 [ 64.949818][ T6895] ? lockdep_hardirqs_off+0x7e/0xb0 [ 64.954992][ T6895] ? trace_hardirqs_off+0x76/0x210 [ 64.960079][ T6895] cancel_delayed_work+0xe0/0x450 [ 64.965080][ T6895] ? mod_delayed_work_on+0x2e0/0x2e0 [ 64.970340][ T6895] ? lockdep_hardirqs_on+0x76/0xf0 [ 64.975444][ T6895] ? queue_delayed_work_on+0x12f/0x210 [ 64.980883][ T6895] l2cap_chan_del+0x541/0x1300 [ 64.985641][ T6895] l2cap_chan_close+0x118/0xb10 [ 64.990470][ T6895] ? l2cap_retransmit_all+0x760/0x760 [ 64.995823][ T6895] ? __mutex_unlock_slowpath+0xe2/0x610 [ 65.001366][ T6895] ? mark_held_locks+0x9f/0xe0 [ 65.006121][ T6895] ? wait_for_completion+0x260/0x260 [ 65.011385][ T6895] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 65.017334][ T6895] ? l2cap_sock_shutdown+0x2c4/0xe90 [ 65.022591][ T6895] ? trace_hardirqs_on+0x5f/0x220 [ 65.027590][ T6895] l2cap_sock_shutdown+0x3b8/0xe90 [ 65.032694][ T6895] ? lock_acquire+0x1f1/0xad0 [ 65.037349][ T6895] ? bt_sock_unlink+0x1d/0x1c0 [ 65.042087][ T6895] ? l2cap_sock_suspend_cb+0x80/0x80 [ 65.047358][ T6895] ? find_held_lock+0x2d/0x110 [ 65.052096][ T6895] ? l2cap_sock_release+0x56/0x1d0 [ 65.057222][ T6895] ? lock_downgrade+0x830/0x830 [ 65.062045][ T6895] ? do_raw_read_unlock+0x70/0x70 [ 65.067048][ T6895] l2cap_sock_release+0x63/0x1d0 [ 65.071964][ T6895] __sock_release+0xcd/0x280 [ 65.076530][ T6895] sock_close+0x18/0x20 [ 65.080660][ T6895] __fput+0x285/0x920 [ 65.084616][ T6895] ? __sock_release+0x280/0x280 [ 65.089580][ T6895] task_work_run+0xdd/0x190 [ 65.094064][ T6895] do_exit+0xb7d/0x29f0 [ 65.098198][ T6895] ? lock_acquire+0x1f1/0xad0 [ 65.102970][ T6895] ? find_held_lock+0x2d/0x110 [ 65.107707][ T6895] ? mm_update_next_owner+0x7a0/0x7a0 [ 65.113052][ T6895] ? get_signal+0x332/0x1ee0 [ 65.117613][ T6895] ? lock_downgrade+0x830/0x830 [ 65.122437][ T6895] ? lock_is_held_type+0xbb/0xf0 [ 65.127350][ T6895] do_group_exit+0x125/0x310 [ 65.131916][ T6895] get_signal+0x40b/0x1ee0 [ 65.136303][ T6895] ? lockdep_hardirqs_on+0x76/0xf0 [ 65.141387][ T6895] ? __local_bh_enable_ip+0xd1/0x190 [ 65.146646][ T6895] ? l2cap_sock_connect+0x379/0x690 [ 65.151835][ T6895] arch_do_signal+0x82/0x2520 [ 65.156480][ T6895] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 65.161749][ T6895] ? __sys_connect_file+0x4e/0x1a0 [ 65.166831][ T6895] ? copy_siginfo_to_user32+0xa0/0xa0 [ 65.172290][ T6895] ? __sys_connect+0x109/0x190 [ 65.177113][ T6895] ? __sys_connect_file+0x1a0/0x1a0 [ 65.182291][ T6895] ? exit_to_user_mode_prepare+0xb9/0x1c0 [ 65.187983][ T6895] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 65.193937][ T6895] exit_to_user_mode_prepare+0x15d/0x1c0 [ 65.199540][ T6895] syscall_exit_to_user_mode+0x59/0x2b0 [ 65.205059][ T6895] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.210922][ T6895] RIP: 0033:0x446dc9 [ 65.214783][ T6895] Code: Bad RIP value. [ 65.218820][ T6895] RSP: 002b:00007fffeccff468 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 65.227415][ T6895] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446dc9 [ 65.235360][ T6895] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004 [ 65.243306][ T6895] RBP: 00007fffeccff4a0 R08: 0000000000000000 R09: 00000000000000ff [ 65.251250][ T6895] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004 [ 65.259193][ T6895] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 65.268659][ T6895] Kernel Offset: disabled [ 65.273030][ T6895] Rebooting in 86400 seconds..