Warning: Permanently added '10.128.0.184' (ECDSA) to the list of known hosts.
syzkaller login: [   62.070207][ T6839] IPVS: ftp: loaded support on port[0] = 21
executing program
[   62.191944][ T6839] INFO: trying to register non-static key.
[   62.197771][ T6839] the code is fine but needs lockdep annotation.
[   62.204082][ T6839] turning off the locking correctness validator.
[   62.210405][ T6839] CPU: 0 PID: 6839 Comm: syz-executor665 Not tainted 5.9.0-rc2-next-20200827-syzkaller #0
[   62.220274][ T6839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   62.230394][ T6839] Call Trace:
[   62.233665][ T6839]  dump_stack+0x18f/0x20d
[   62.237975][ T6839]  register_lock_class+0x157d/0x1630
[   62.243234][ T6839]  ? lock_is_held_type+0xbb/0xf0
[   62.248193][ T6839]  ? is_dynamic_key+0x1a0/0x1a0
[   62.253054][ T6839]  ? find_held_lock+0x2d/0x110
[   62.257790][ T6839]  ? try_to_wake_up+0x57e/0x12b0
[   62.262753][ T6839]  __lock_acquire+0xf9/0x5640
[   62.267428][ T6839]  ? lockdep_hardirqs_off+0x89/0xc0
[   62.275567][ T6839]  ? trace_hardirqs_off+0x27/0x210
[   62.280750][ T6839]  ? _raw_spin_unlock_irqrestore+0x9b/0xe0
[   62.286538][ T6839]  ? lockdep_hardirqs_on_prepare+0x530/0x530
[   62.292489][ T6839]  ? find_held_lock+0x2d/0x110
[   62.297282][ T6839]  ? __queue_work+0x61a/0xf20
[   62.301934][ T6839]  lock_acquire+0x1f1/0xad0
[   62.306414][ T6839]  ? skb_dequeue+0x1c/0x180
[   62.310891][ T6839]  ? lock_release+0x8e0/0x8e0
[   62.315541][ T6839]  ? mark_lock+0xbc/0x1710
[   62.319944][ T6839]  ? __queue_work+0x63c/0xf20
[   62.324603][ T6839]  ? mark_held_locks+0x9f/0xe0
[   62.329386][ T6839]  _raw_spin_lock_irqsave+0x8c/0xc0
[   62.334617][ T6839]  ? skb_dequeue+0x1c/0x180
[   62.339099][ T6839]  skb_dequeue+0x1c/0x180
[   62.343406][ T6839]  skb_queue_purge+0x21/0x30
[   62.348008][ T6839]  l2cap_chan_del+0x61d/0x1300
[   62.352747][ T6839]  l2cap_conn_del+0x46a/0x9e0
[   62.357403][ T6839]  ? l2cap_conn_del+0x9e0/0x9e0
[   62.362329][ T6839]  l2cap_disconn_cfm+0x85/0xa0
[   62.367265][ T6839]  hci_conn_hash_flush+0x114/0x220
[   62.372352][ T6839]  hci_dev_do_close+0x5c6/0x1080
[   62.377264][ T6839]  ? hci_dev_open+0x350/0x350
[   62.381919][ T6839]  ? do_raw_read_unlock+0x70/0x70
[   62.386933][ T6839]  ? try_to_grab_pending.part.0+0x7d0/0x7d0
[   62.392813][ T6839]  hci_unregister_dev+0x1bd/0xe30
[   62.397811][ T6839]  ? fcntl_setlk+0xf60/0xf60
[   62.402375][ T6839]  ? lock_is_held_type+0xbb/0xf0
[   62.407301][ T6839]  vhci_release+0x70/0xe0
[   62.411691][ T6839]  __fput+0x285/0x920
[   62.416543][ T6839]  ? vhci_close_dev+0x50/0x50
[   62.421199][ T6839]  task_work_run+0xdd/0x190
[   62.425697][ T6839]  do_exit+0xb7d/0x29f0
[   62.429844][ T6839]  ? mm_update_next_owner+0x7a0/0x7a0
[   62.435197][ T6839]  ? __sb_end_write+0xf8/0x1d0
[   62.439935][ T6839]  ? vfs_write+0x1b0/0x730
[   62.444332][ T6839]  ? lock_is_held_type+0xbb/0xf0
[   62.449338][ T6839]  do_group_exit+0x125/0x310
[   62.453915][ T6839]  __x64_sys_exit_group+0x3a/0x50
[   62.458926][ T6839]  do_syscall_64+0x2d/0x70
[   62.463321][ T6839]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   62.469186][ T6839] RIP: 0033:0x445068
[   62.473322][ T6839] Code: Bad RIP value.
[   62.477374][ T6839] RSP: 002b:00007ffc0b604dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   62.485761][ T6839] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000445068