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 '10.128.10.19' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.490217][ T94] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 29.580014][ T94] usb 1-1: Using ep0 maxpacket: 16 [ 29.739823][ T94] usb 1-1: unable to get BOS descriptor or descriptor too short [ 29.819836][ T94] usb 1-1: config 4 has an invalid interface number: 198 but max is 1 [ 29.828145][ T94] usb 1-1: config 4 contains an unexpected descriptor of type 0x1, skipping [ 29.836934][ T94] usb 1-1: config 4 has an invalid interface number: 177 but max is 1 [ 29.845164][ T94] usb 1-1: config 4 has no interface number 0 [ 29.851312][ T94] usb 1-1: config 4 has no interface number 1 [ 29.857596][ T94] usb 1-1: config 4 interface 198 altsetting 9 endpoint 0x6 has invalid maxpacket 1023, setting to 64 [ 29.868631][ T94] usb 1-1: config 4 interface 198 altsetting 9 has an invalid endpoint with address 0x0, skipping [ 29.879352][ T94] usb 1-1: config 4 interface 198 altsetting 9 endpoint 0xA has invalid maxpacket 1024, setting to 64 [ 29.890636][ T94] usb 1-1: config 4 interface 198 altsetting 9 has an invalid endpoint with address 0x0, skipping [ 29.901440][ T94] usb 1-1: config 4 interface 198 altsetting 9 endpoint 0xB has invalid maxpacket 1614, setting to 64 [ 29.913620][ T94] usb 1-1: config 4 interface 198 altsetting 9 has an invalid endpoint descriptor of length 2, skipping [ 29.925476][ T94] usb 1-1: config 4 interface 198 altsetting 9 bulk endpoint 0x4 has invalid maxpacket 431 [ 29.935557][ T94] usb 1-1: config 4 interface 198 altsetting 9 bulk endpoint 0x2 has invalid maxpacket 32 [ 29.945516][ T94] usb 1-1: config 4 interface 198 altsetting 9 has 10 endpoint descriptors, different from the interface descriptor's value: 9 [ 29.958759][ T94] usb 1-1: config 4 interface 198 has no altsetting 0 [ 29.965597][ T94] usb 1-1: config 4 interface 177 has no altsetting 0 [ 30.209812][ T94] usb 1-1: string descriptor 0 read error: -22 [ 30.216094][ T94] usb 1-1: New USB device found, idVendor=1286, idProduct=204e, bcdDevice=e3.3a [ 30.225393][ T94] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 30.282927][ T94] usb 1-1: Direct firmware load for mrvl/usbusb8997_combo_v4.bin failed with error -2 [ 30.292622][ T94] usb 1-1: Failed to get firmware mrvl/usbusb8997_combo_v4.bin [ 30.300370][ T94] usb 1-1: info: _mwifiex_fw_dpc: unregister device [ 30.307148][ T94] INFO: trying to register non-static key. [ 30.312976][ T94] the code is fine but needs lockdep annotation. [ 30.319285][ T94] turning off the locking correctness validator. [ 30.325669][ T94] CPU: 0 PID: 94 Comm: kworker/0:2 Not tainted 5.6.0-rc3-syzkaller #0 [ 30.333904][ T94] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.343977][ T94] Workqueue: events request_firmware_work_func [ 30.350130][ T94] Call Trace: [ 30.353510][ T94] dump_stack+0xef/0x16e [ 30.357764][ T94] register_lock_class+0x1022/0x11d0 [ 30.363220][ T94] ? ret_from_fork+0x24/0x30 [ 30.369374][ T94] ? is_dynamic_key+0x1b0/0x1b0 [ 30.374234][ T94] __lock_acquire+0xfc/0x3b60 [ 30.378918][ T94] ? save_stack+0x4c/0x80 [ 30.383345][ T94] ? ret_from_fork+0x24/0x30 [ 30.388492][ T94] ? mark_held_locks+0xe0/0xe0 [ 30.394176][ T94] ? _cond_resched+0x10/0x20 [ 30.398880][ T94] ? usb_kill_urb+0x198/0x2c0 [ 30.403568][ T94] lock_acquire+0x130/0x340 [ 30.408808][ T94] ? try_to_del_timer_sync+0x110/0x110 [ 30.414429][ T94] del_timer_sync+0x3a/0x130 [ 30.419193][ T94] ? try_to_del_timer_sync+0x110/0x110 [ 30.425635][ T94] mwifiex_unregister_dev+0x416/0x690 [ 30.430992][ T94] _mwifiex_fw_dpc+0x732/0xe00 [ 30.436066][ T94] ? mwifiex_usb_prepare_tx_aggr_skb+0x8c0/0x8c0 [ 30.442557][ T94] ? mwifiex_drv_info_dump+0xf70/0xf70 [ 30.448048][ T94] ? _request_firmware+0x935/0x1210 [ 30.453232][ T94] ? kfree+0xd5/0x300 [ 30.457282][ T94] ? _request_firmware+0x10b/0x1210 [ 30.462869][ T94] ? assign_fw+0x480/0x480 [ 30.467689][ T94] ? find_held_lock+0x2d/0x110 [ 30.472540][ T94] ? mark_held_locks+0xe0/0xe0 [ 30.477529][ T94] ? _mwifiex_fw_dpc+0xe00/0xe00 [ 30.482556][ T94] request_firmware_work_func+0x126/0x242 [ 30.488259][ T94] ? request_firmware_into_buf+0x90/0x90 [ 30.493936][ T94] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 30.499506][ T94] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 30.504786][ T94] process_one_work+0x94b/0x1620 [ 30.509716][ T94] ? pwq_dec_nr_in_flight+0x310/0x310 [ 30.515206][ T94] ? do_raw_spin_lock+0x129/0x290 [ 30.520229][ T94] worker_thread+0x96/0xe20 [ 30.524723][ T94] ? process_one_work+0x1620/0x1620 [ 30.530184][ T94] kthread+0x318/0x420