[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[ 14.183444][ T1663] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 39.331580][ C1] random: crng init done Warning: Permanently added '10.128.0.212' (ECDSA) to the list of known hosts. executing program [ 280.395149][ T12] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 280.754711][ T12] usb 1-1: config 0 has an invalid interface number: 47 but max is 0 [ 280.763009][ T12] usb 1-1: config 0 has no interface number 0 [ 280.769189][ T12] usb 1-1: config 0 interface 47 has no altsetting 0 [ 280.775936][ T12] usb 1-1: New USB device found, idVendor=1286, idProduct=2041, bcdDevice=df.cd [ 280.785017][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 280.794938][ T12] usb 1-1: config 0 descriptor?? [ 280.862519][ T102] usb 1-1: Direct firmware load for mrvl/usb8766_uapsta.bin failed with error -2 [ 280.872096][ T102] usb 1-1: Failed to get firmware mrvl/usb8766_uapsta.bin [ 280.879318][ T102] usb 1-1: info: _mwifiex_fw_dpc: unregister device [ 280.885943][ T102] INFO: trying to register non-static key. [ 280.891732][ T102] the code is fine but needs lockdep annotation. [ 280.898025][ T102] turning off the locking correctness validator. [ 280.904339][ T102] CPU: 0 PID: 102 Comm: kworker/0:2 Not tainted 5.4.0-rc1+ #0 [ 280.911775][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 280.921897][ T102] Workqueue: events request_firmware_work_func [ 280.928026][ T102] Call Trace: [ 280.931386][ T102] dump_stack+0xca/0x13e [ 280.935661][ T102] register_lock_class+0x1022/0x11d0 [ 280.940946][ T102] ? is_dynamic_key+0x1b0/0x1b0 [ 280.945812][ T102] ? _raw_spin_unlock_irq+0x24/0x30 [ 280.951002][ T102] ? lockdep_hardirqs_on+0x382/0x580 [ 280.956357][ T102] __lock_acquire+0xfc/0x3b60 [ 280.961047][ T102] ? __sched_text_start+0x8/0x8 [ 280.965871][ T102] ? mark_held_locks+0xe0/0xe0 [ 280.970693][ T102] ? _cond_resched+0x10/0x20 [ 280.975357][ T102] ? usb_kill_urb+0x198/0x2c0 [ 280.980049][ T102] lock_acquire+0x127/0x320 [ 280.984915][ T102] ? try_to_del_timer_sync+0x110/0x110 [ 280.990395][ T102] del_timer_sync+0x3a/0x140 [ 280.994967][ T102] ? try_to_del_timer_sync+0x110/0x110 [ 281.000500][ T102] mwifiex_unregister_dev+0x416/0x690 [ 281.005902][ T102] _mwifiex_fw_dpc+0x577/0xdb0 [ 281.010647][ T102] ? mwifiex_usb_prepare_tx_aggr_skb+0x8c0/0x8c0 [ 281.016953][ T102] ? mwifiex_drv_info_dump+0xf70/0xf70 [ 281.022393][ T102] ? _request_firmware+0x8eb/0x10c0 [ 281.027654][ T102] ? kfree+0xe4/0x2f0 [ 281.031674][ T102] ? _request_firmware+0x10b/0x10c0 [ 281.036856][ T102] ? assign_fw+0x4f0/0x4f0 [ 281.041254][ T102] ? find_held_lock+0x2d/0x110 [ 281.046108][ T102] ? mark_held_locks+0xe0/0xe0 [ 281.050860][ T102] ? _mwifiex_fw_dpc+0xdb0/0xdb0 [ 281.055867][ T102] request_firmware_work_func+0x126/0x242 [ 281.061565][ T102] ? request_firmware_into_buf+0x90/0x90 [ 281.067473][ T102] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 281.073263][ T102] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 281.078549][ T102] process_one_work+0x92b/0x1530 [ 281.084180][ T102] ? pwq_dec_nr_in_flight+0x310/0x310 [ 281.089532][ T102] ? do_raw_spin_lock+0x11a/0x280 [ 281.094538][ T102] worker_thread+0x96/0xe20 [ 281.099022][ T102] ? process_one_work+0x1530/0x1530 [ 281.104216][ T102] kthread+0x318/0x420 [ 281.108259][ T102] ? kthread_create_on_node+0xf0/0xf0