Warning: Permanently added '10.128.0.193' (ECDSA) to the list of known hosts.
syzkaller login: [   68.125189][ T6834] IPVS: ftp: loaded support on port[0] = 21
executing program
[   68.218521][   T26] tipc: TX() has been purged, node left!
[   68.226321][ T6834] INFO: trying to register non-static key.
[   68.232130][ T6834] the code is fine but needs lockdep annotation.
[   68.238433][ T6834] turning off the locking correctness validator.
[   68.244729][ T6834] CPU: 1 PID: 6834 Comm: syz-executor737 Not tainted 5.9.0-rc2-syzkaller #0
[   68.253362][ T6834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   68.263382][ T6834] Call Trace:
[   68.266662][ T6834]  dump_stack+0x18f/0x20d
[   68.270959][ T6834]  register_lock_class+0x157d/0x1630
[   68.276213][ T6834]  ? lock_is_held_type+0xbb/0xf0
[   68.281163][ T6834]  ? is_dynamic_key+0x1a0/0x1a0
[   68.285982][ T6834]  ? find_held_lock+0x2d/0x110
[   68.290715][ T6834]  ? try_to_wake_up+0x57e/0x12b0
[   68.295621][ T6834]  __lock_acquire+0xf9/0x5640
[   68.300270][ T6834]  ? lockdep_hardirqs_off+0x89/0xc0
[   68.305438][ T6834]  ? trace_hardirqs_off+0x27/0x210
[   68.310519][ T6834]  ? __queue_work+0x61a/0xf20
[   68.315176][ T6834]  ? preempt_schedule_notrace_thunk+0x16/0x31
[   68.321215][ T6834]  ? lockdep_hardirqs_on_prepare+0x530/0x530
[   68.327159][ T6834]  ? find_held_lock+0x2d/0x110
[   68.331894][ T6834]  ? __queue_work+0x61a/0xf20
[   68.336577][ T6834]  lock_acquire+0x1f1/0xad0
[   68.341086][ T6834]  ? skb_dequeue+0x1c/0x180
[   68.345564][ T6834]  ? lock_release+0x8e0/0x8e0
[   68.350211][ T6834]  ? mark_lock+0xbc/0x1710
[   68.354598][ T6834]  ? __queue_work+0x63c/0xf20
[   68.359247][ T6834]  ? mark_held_locks+0x9f/0xe0
[   68.364022][ T6834]  _raw_spin_lock_irqsave+0x8c/0xc0
[   68.369192][ T6834]  ? skb_dequeue+0x1c/0x180
[   68.373665][ T6834]  skb_dequeue+0x1c/0x180
[   68.377966][ T6834]  skb_queue_purge+0x21/0x30
[   68.382530][ T6834]  l2cap_chan_del+0x61d/0x1300
[   68.387261][ T6834]  l2cap_conn_del+0x46a/0x9e0
[   68.391908][ T6834]  ? l2cap_conn_del+0x9e0/0x9e0
[   68.396769][ T6834]  l2cap_disconn_cfm+0x85/0xa0
[   68.401514][ T6834]  hci_conn_hash_flush+0x114/0x220
[   68.406611][ T6834]  hci_dev_do_close+0x5c6/0x1080
[   68.411528][ T6834]  ? hci_dev_open+0x350/0x350
[   68.416176][ T6834]  ? do_raw_read_unlock+0x70/0x70
[   68.421184][ T6834]  ? try_to_grab_pending.part.0+0x7d0/0x7d0
[   68.427045][ T6834]  hci_unregister_dev+0x1bd/0xe30
[   68.432040][ T6834]  ? fcntl_setlk+0xf60/0xf60
[   68.436599][ T6834]  ? lock_is_held_type+0xbb/0xf0
[   68.441508][ T6834]  vhci_release+0x70/0xe0
[   68.445813][ T6834]  __fput+0x285/0x920
[   68.449768][ T6834]  ? vhci_close_dev+0x50/0x50
[   68.454429][ T6834]  task_work_run+0xdd/0x190
[   68.458914][ T6834]  do_exit+0xb7d/0x29f0
[   68.463040][ T6834]  ? mm_update_next_owner+0x7a0/0x7a0
[   68.468377][ T6834]  ? __sb_end_write+0xf8/0x1d0
[   68.473115][ T6834]  ? lock_is_held_type+0xbb/0xf0
[   68.478033][ T6834]  ? lock_is_held_type+0xbb/0xf0
[   68.482949][ T6834]  do_group_exit+0x125/0x310
[   68.487572][ T6834]  __x64_sys_exit_group+0x3a/0x50
[   68.492573][ T6834]  do_syscall_64+0x2d/0x70
[   68.496960][ T6834]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   68.502828][ T6834] RIP: 0033:0x445068
[   68.506689][ T6834] Code: Bad RIP value.
[   68.510725][ T6834] RSP: 002b:00007fff81317fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   68.519