INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   24.562385][   T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   24.801946][   T83] usb 1-1: Using ep0 maxpacket: 8
[   24.922042][   T83] usb 1-1: config 0 has an invalid interface number: 173 but max is 0
[   24.930399][   T83] usb 1-1: config 0 has no interface number 0
[   24.936539][   T83] usb 1-1: config 0 interface 173 has no altsetting 0
[   24.943374][   T83] usb 1-1: New USB device found, idVendor=1286, idProduct=2041, bcdDevice=58.22
[   24.952458][   T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   24.962035][   T83] usb 1-1: config 0 descriptor??
[   25.008619][   T83] usb 1-1: Direct firmware load for mrvl/usb8766_uapsta.bin failed with error -2
[   25.017839][   T83] usb 1-1: Failed to get firmware mrvl/usb8766_uapsta.bin
[   25.025877][   T83] usb 1-1: info: _mwifiex_fw_dpc: unregister device
[   25.033365][   T83] INFO: trying to register non-static key.
[   25.039181][   T83] the code is fine but needs lockdep annotation.
[   25.045476][   T83] turning off the locking correctness validator.
[   25.051776][   T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.4.0-rc6+ #0
[   25.059125][   T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.069160][   T83] Workqueue: events request_firmware_work_func
[   25.075288][   T83] Call Trace:
[   25.078560][   T83]  dump_stack+0xca/0x13e
[   25.082786][   T83]  register_lock_class+0x1022/0x11d0
[   25.088042][   T83]  ? ret_from_fork+0x24/0x30
[   25.092604][   T83]  ? is_dynamic_key+0x1b0/0x1b0
[   25.098119][   T83]  ? stack_trace_save+0x9f/0xe0
[   25.102942][   T83]  __lock_acquire+0xfc/0x3b60
[   25.107619][   T83]  ? kthread+0x318/0x420
[   25.111986][   T83]  ? mark_held_locks+0xe0/0xe0
[   25.116742][   T83]  ? _cond_resched+0x10/0x20
[   25.121316][   T83]  ? usb_kill_urb+0x198/0x2c0
[   25.126161][   T83]  lock_acquire+0x127/0x320
[   25.130642][   T83]  ? try_to_del_timer_sync+0x110/0x110
[   25.136074][   T83]  del_timer_sync+0x3a/0x140
[   25.140636][   T83]  ? try_to_del_timer_sync+0x110/0x110
[   25.146077][   T83]  mwifiex_unregister_dev+0x416/0x690
[   25.151419][   T83]  _mwifiex_fw_dpc+0x577/0xdb0
[   25.156154][   T83]  ? mwifiex_usb_prepare_tx_aggr_skb+0x8c0/0x8c0
[   25.162455][   T83]  ? mwifiex_drv_info_dump+0xf70/0xf70
[   25.167893][   T83]  ? _request_firmware+0x8eb/0x10c0
[   25.173074][   T83]  ? kfree+0xe4/0x320
[   25.177027][   T83]  ? _request_firmware+0x10b/0x10c0
[   25.182196][   T83]  ? assign_fw+0x4f0/0x4f0
[   25.186675][   T83]  ? find_held_lock+0x2d/0x110
[   25.191409][   T83]  ? mark_held_locks+0xe0/0xe0
[   25.196142][   T83]  ? _mwifiex_fw_dpc+0xdb0/0xdb0
[   25.201050][   T83]  request_firmware_work_func+0x126/0x242
[   25.206753][   T83]  ? request_firmware_into_buf+0x90/0x90
[   25.212366][   T83]  ? rcu_read_lock_sched_held+0x9c/0xd0
[   25.217891][   T83]  ? rcu_read_lock_bh_held+0xb0/0xb0
[   25.223247][   T83]  process_one_work+0x92b/0x1530
[   25.228156][   T83]  ? pwq_dec_nr_in_flight+0x310/0x310
[   25.233502][   T83]  ? do_raw_spin_lock+0x11a/0x280
[   25.239459][   T83]  worker_thread+0x96/0xe20
[   25.243932][   T83]  ? process_one_work+0x1530/0x1530
[   25.249100][   T83]  kthread+0x318/0x420
[   25.253140][   T83]  ? kthread_create_on_node+0xf0/0xf0
[   25.258482][