Warning: Permanently added '10.128.0.69' (ECDSA) to the list of known hosts.
syzkaller login: [   45.189676][ T6828] IPVS: ftp: loaded support on port[0] = 21
executing program
[   45.282788][ T6828] INFO: trying to register non-static key.
[   45.288614][ T6828] the code is fine but needs lockdep annotation.
[   45.294919][ T6828] turning off the locking correctness validator.
[   45.301237][ T6828] CPU: 1 PID: 6828 Comm: syz-executor381 Not tainted 5.9.0-rc2-syzkaller #0
[   45.309892][ T6828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.319934][ T6828] Call Trace:
[   45.323211][ T6828]  dump_stack+0x1f0/0x31e
[   45.327523][ T6828]  register_lock_class+0xf06/0x1520
[   45.332689][ T6828]  ? lock_is_held_type+0xb3/0xe0
[   45.337595][ T6828]  __lock_acquire+0xfa/0x2ab0
[   45.342239][ T6828]  ? trace_lock_release+0x137/0x1a0
[   45.347404][ T6828]  ? mark_lock+0x102/0x1b00
[   45.351875][ T6828]  ? preempt_schedule_notrace_thunk+0x16/0x31
[   45.357918][ T6828]  lock_acquire+0x160/0x730
[   45.362388][ T6828]  ? skb_queue_purge+0x2e/0x1c0
[   45.367205][ T6828]  ? lockdep_hardirqs_on_prepare+0x445/0x6a0
[   45.373151][ T6828]  ? queue_delayed_work_on+0x149/0x1b0
[   45.378580][ T6828]  _raw_spin_lock_irqsave+0x9e/0xc0
[   45.383748][ T6828]  ? skb_queue_purge+0x2e/0x1c0
[   45.388565][ T6828]  skb_queue_purge+0x2e/0x1c0
[   45.393211][ T6828]  l2cap_conn_del+0x3de/0x650
[   45.397859][ T6828]  ? l2cap_connect_cfm+0x12b0/0x12b0
[   45.403118][ T6828]  hci_conn_hash_flush+0x127/0x200
[   45.408205][ T6828]  hci_dev_do_close+0xb7b/0x1040
[   45.413131][ T6828]  hci_unregister_dev+0x185/0x1590
[   45.418218][ T6828]  vhci_release+0x73/0xc0
[   45.422518][ T6828]  ? vhci_open+0x290/0x290
[   45.426904][ T6828]  __fput+0x34f/0x7b0
[   45.430856][ T6828]  task_work_run+0x137/0x1c0
[   45.435433][ T6828]  do_exit+0x5f3/0x1f20
[   45.439556][ T6828]  ? vfs_write+0x787/0xd10
[   45.443948][ T6828]  ? lock_is_held_type+0xb3/0xe0
[   45.448865][ T6828]  do_group_exit+0x161/0x2d0
[   45.453422][ T6828]  ? syscall_enter_from_user_mode+0x24/0x1a0
[   45.459390][ T6828]  __do_sys_exit_group+0x13/0x20
[   45.464380][ T6828]  __se_sys_exit_group+0x10/0x10
[   45.469297][ T6828]  __x64_sys_exit_group+0x37/0x40
[   45.474299][ T6828]  do_syscall_64+0x31/0x70
[   45.478699][ T6828]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.484566][ T6828] RIP: 0033:0x445068
[   45.488446][ T6828] Code: Bad RIP value.
[   45.492477][ T6828] RSP: 002b:00007ffe31991f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   45.500873][ T6828] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000445068
[   45.508814][ T6828] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001
[   45.516767][ T6828] RBP: 00000000004cce30 R08: 00000000000000e7 R09: ffffffffffffffd0
[   45.524807][ T6828] R10: 00000000000000ff R11: 0000000000000246 R12: 0000000000000001
[   45.532760