[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[   14.595791][    C1] random: crng init done
[....] 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 '10.128.0.181' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   26.280261][   T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   26.519828][   T83] usb 1-1: Using ep0 maxpacket: 8
[   26.639933][   T83] usb 1-1: config 0 has an invalid interface number: 34 but max is 0
[   26.648096][   T83] usb 1-1: config 0 has no interface number 0
[   26.654262][   T83] usb 1-1: New USB device found, idVendor=1286, idProduct=2044, bcdDevice=5e.9b
[   26.663361][   T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   26.672605][   T83] usb 1-1: config 0 descriptor??
[   26.726158][   T83] usb 1-1: Direct firmware load for mrvl/usb8797_uapsta.bin failed with error -2
[   26.735360][   T83] usb 1-1: Failed to get firmware mrvl/usb8797_uapsta.bin
[   26.742504][   T83] usb 1-1: info: _mwifiex_fw_dpc: unregister device
[   26.749089][   T83] INFO: trying to register non-static key.
[   26.754865][   T83] the code is fine but needs lockdep annotation.
[   26.761157][   T83] turning off the locking correctness validator.
[   26.767469][   T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.4.0-rc5+ #0
[   26.774903][   T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.784953][   T83] Workqueue: events request_firmware_work_func
[   26.791079][   T83] Call Trace:
[   26.794380][   T83]  dump_stack+0xca/0x13e
[   26.798600][   T83]  register_lock_class+0x1022/0x11d0
[   26.803860][   T83]  ? is_dynamic_key+0x1b0/0x1b0
[   26.808686][   T83]  ? _raw_spin_unlock_irq+0x24/0x30
[   26.813890][   T83]  ? lockdep_hardirqs_on+0x382/0x580
[   26.819145][   T83]  __lock_acquire+0xfc/0x3b60
[   26.823832][   T83]  ? __sched_text_start+0x8/0x8
[   26.828653][   T83]  ? mark_held_locks+0xe0/0xe0
[   26.833391][   T83]  ? _cond_resched+0x10/0x20
[   26.837952][   T83]  ? usb_kill_urb+0x198/0x2c0
[   26.842601][   T83]  lock_acquire+0x127/0x320
[   26.847077][   T83]  ? try_to_del_timer_sync+0x110/0x110
[   26.852505][   T83]  del_timer_sync+0x3a/0x140
[   26.857101][   T83]  ? try_to_del_timer_sync+0x110/0x110
[   26.862532][   T83]  mwifiex_unregister_dev+0x416/0x690
[   26.867874][   T83]  _mwifiex_fw_dpc+0x577/0xdb0
[   26.872612][   T83]  ? mwifiex_usb_prepare_tx_aggr_skb+0x8c0/0x8c0
[   26.878911][   T83]  ? mwifiex_drv_info_dump+0xf70/0xf70
[   26.884339][   T83]  ? _request_firmware+0x8eb/0x10c0
[   26.889506][   T83]  ? kfree+0xe4/0x320
[   26.893459][   T83]  ? _request_firmware+0x10b/0x10c0
[   26.898625][   T83]  ? assign_fw+0x4f0/0x4f0
[   26.903014][   T83]  ? find_held_lock+0x2d/0x110
[   26.907748][   T83]  ? mark_held_locks+0xe0/0xe0
[   26.912482][   T83]  ? _mwifiex_fw_dpc+0xdb0/0xdb0
[   26.917390][   T83]  request_firmware_work_func+0x126/0x242
[   26.923078][   T83]  ? request_firmware_into_buf+0x90/0x90
[   26.928682][   T83]  ? rcu_read_lock_sched_held+0x9c/0xd0
[   26.934196][   T83]  ? rcu_read_lock_bh_held+0xb0/0xb0
[   26.939452][   T83]  process_one_work+0x92b/0x1530
[   26.944359][   T83]  ? pwq_dec_nr_in_flight+0x310/0x310
[   26.949704][   T83]  ? do_raw_spin_lock+0x11a/0x280
[   26.954698][   T83]  worker_thread+0x96/0xe20
[   26.959171][   T83]  ? process_one_work+0x1530/0x1530
[   26.964347][   T83]  kthread+0x318/0x420
[   26.968388][   T83]  ? kthread_create_on_node+0xf0/0xf0
[   26.973741][   T83]  ret_from_fork+0x24