Warning: Permanently added '10.128.15.212' (ECDSA) to the list of known hosts.
syzkaller login: [   61.789131][ T6842] IPVS: ftp: loaded support on port[0] = 21
executing program
[   61.886633][ T6842] INFO: trying to register non-static key.
[   61.892480][ T6842] the code is fine but needs lockdep annotation.
[   61.898790][ T6842] turning off the locking correctness validator.
[   61.905101][ T6842] CPU: 0 PID: 6842 Comm: syz-executor175 Not tainted 5.9.0-rc2-syzkaller #0
[   61.913737][ T6842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   61.923760][ T6842] Call Trace:
[   61.927023][ T6842]  dump_stack+0x18f/0x20d
[   61.931324][ T6842]  register_lock_class+0x157d/0x1630
[   61.936581][ T6842]  ? lock_is_held_type+0xbb/0xf0
[   61.941493][ T6842]  ? is_dynamic_key+0x1a0/0x1a0
[   61.946314][ T6842]  ? find_held_lock+0x2d/0x110
[   61.951047][ T6842]  ? try_to_wake_up+0x57e/0x12b0
[   61.956010][ T6842]  __lock_acquire+0xf9/0x5640
[   61.960704][ T6842]  ? lockdep_hardirqs_off+0x89/0xc0
[   61.965884][ T6842]  ? trace_hardirqs_off+0x27/0x210
[   61.970965][ T6842]  ? __queue_work+0x61a/0xf20
[   61.975615][ T6842]  ? preempt_schedule_notrace_thunk+0x16/0x31
[   61.981657][ T6842]  ? lockdep_hardirqs_on_prepare+0x530/0x530
[   61.987618][ T6842]  ? find_held_lock+0x2d/0x110
[   61.992442][ T6842]  ? __queue_work+0x61a/0xf20
[   61.997091][ T6842]  lock_acquire+0x1f1/0xad0
[   62.001567][ T6842]  ? skb_dequeue+0x1c/0x180
[   62.006040][ T6842]  ? lock_release+0x8e0/0x8e0
[   62.010689][ T6842]  ? mark_lock+0xbc/0x1710
[   62.015075][ T6842]  ? __queue_work+0x63c/0xf20
[   62.019722][ T6842]  ? mark_held_locks+0x9f/0xe0
[   62.024457][ T6842]  _raw_spin_lock_irqsave+0x8c/0xc0
[   62.029640][ T6842]  ? skb_dequeue+0x1c/0x180
[   62.034113][ T6842]  skb_dequeue+0x1c/0x180
[   62.038412][ T6842]  skb_queue_purge+0x21/0x30
[   62.042970][ T6842]  l2cap_chan_del+0x61d/0x1300
[   62.047717][ T6842]  l2cap_conn_del+0x46a/0x9e0
[   62.052363][ T6842]  ? l2cap_conn_del+0x9e0/0x9e0
[   62.057184][ T6842]  l2cap_disconn_cfm+0x85/0xa0
[   62.061928][ T6842]  hci_conn_hash_flush+0x114/0x220
[   62.067011][ T6842]  hci_dev_do_close+0x5c6/0x1080
[   62.071919][ T6842]  ? hci_dev_open+0x350/0x350
[   62.076566][ T6842]  ? do_raw_read_unlock+0x70/0x70
[   62.081571][ T6842]  ? try_to_grab_pending.part.0+0x7d0/0x7d0
[   62.087441][ T6842]  hci_unregister_dev+0x1bd/0xe30
[   62.092436][ T6842]  ? fcntl_setlk+0xf60/0xf60
[   62.097006][ T6842]  ? lock_is_held_type+0xbb/0xf0
[   62.101920][ T6842]  vhci_release+0x70/0xe0
[   62.106219][ T6842]  __fput+0x285/0x920
[   62.110180][ T6842]  ? vhci_close_dev+0x50/0x50
[   62.114827][ T6842]  task_work_run+0xdd/0x190
[   62.119320][ T6842]  do_exit+0xb7d/0x29f0
[   62.123467][ T6842]  ? mm_update_next_owner+0x7a0/0x7a0
[   62.128823][ T6842]  ? vmacache_update+0xce/0x140
[   62.133653][ T6842]  ? lock_is_held_type+0xbb/0xf0
[   62.138572][ T6842]  do_group_exit+0x125/0x310
[   62.143133][ T6842]  __ia32_sys_exit_group+0x3a/0x50
[   62.148219][ T6842]  __do_fast_syscall_32+0x57/0x80
[   62.153222][ T6842]  do_fast_syscall_32+0x2f/0x70
[   62.158072][ T6842]  entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
[   62.164381][ T6842] RIP: 0023:0xf7f79549
[   62.168429][ T6842] Code: Bad RIP value.
[   62.172483][ T6842] RSP: 002b:00000000ffa44c9c EFLAGS: 00000296 ORIG_RAX: 00000000000000fc
[   62.180868][ T6842] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000080