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 '10.128.0.74' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.391236][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 25.631212][ T22] usb 1-1: Using ep0 maxpacket: 16 [ 25.751388][ T22] usb 1-1: config 0 has an invalid interface number: 51 but max is 0 [ 25.759857][ T22] usb 1-1: config 0 has an invalid descriptor of length 36, skipping remainder of the config [ 25.770261][ T22] usb 1-1: config 0 has no interface number 0 [ 25.776587][ T22] usb 1-1: New USB device found, idVendor=1286, idProduct=204e, bcdDevice=68.31 [ 25.786221][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 25.797426][ T22] usb 1-1: config 0 descriptor?? [ 25.880497][ T1716] usb 1-1: Direct firmware load for mrvl/usbusb8997_combo_v4.bin failed with error -2 [ 25.891837][ T1716] usb 1-1: Failed to get firmware mrvl/usbusb8997_combo_v4.bin [ 25.899479][ T1716] usb 1-1: info: _mwifiex_fw_dpc: unregister device [ 25.907524][ T1716] INFO: trying to register non-static key. [ 25.914733][ T1716] the code is fine but needs lockdep annotation. [ 25.921453][ T1716] turning off the locking correctness validator. [ 25.928721][ T1716] CPU: 1 PID: 1716 Comm: kworker/1:2 Not tainted 5.5.0-rc1-syzkaller #0 [ 25.938894][ T1716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.948952][ T1716] Workqueue: events request_firmware_work_func [ 25.955103][ T1716] Call Trace: [ 25.958826][ T1716] dump_stack+0xef/0x16e [ 25.963139][ T1716] register_lock_class+0x1022/0x11d0 [ 25.968687][ T1716] ? ret_from_fork+0x24/0x30 [ 25.973360][ T1716] ? is_dynamic_key+0x1b0/0x1b0 [ 25.978223][ T1716] ? stack_trace_save+0x9f/0xe0 [ 25.984455][ T1716] __lock_acquire+0xfc/0x3b60 [ 25.989129][ T1716] ? kthread+0x318/0x420 [ 25.993357][ T1716] ? mark_held_locks+0xe0/0xe0 [ 25.998118][ T1716] ? _cond_resched+0x10/0x20 [ 26.002787][ T1716] ? usb_kill_urb+0x198/0x2c0 [ 26.007458][ T1716] lock_acquire+0x127/0x320 [ 26.011992][ T1716] ? try_to_del_timer_sync+0x110/0x110 [ 26.017611][ T1716] del_timer_sync+0x3a/0x130 [ 26.022599][ T1716] ? try_to_del_timer_sync+0x110/0x110 [ 26.028269][ T1716] mwifiex_unregister_dev+0x416/0x690 [ 26.035216][ T1716] _mwifiex_fw_dpc+0x5a4/0xde0 [ 26.040936][ T1716] ? mwifiex_usb_prepare_tx_aggr_skb+0x8c0/0x8c0 [ 26.048015][ T1716] ? mwifiex_drv_info_dump+0xf70/0xf70 [ 26.053825][ T1716] ? _request_firmware+0x8eb/0x1140 [ 26.059214][ T1716] ? kfree+0xda/0x310 [ 26.063191][ T1716] ? _request_firmware+0x10b/0x1140 [ 26.068375][ T1716] ? assign_fw+0x570/0x570 [ 26.072789][ T1716] ? find_held_lock+0x2d/0x110 [ 26.077921][ T1716] ? mark_held_locks+0xe0/0xe0 [ 26.082953][ T1716] ? _mwifiex_fw_dpc+0xde0/0xde0 [ 26.089284][ T1716] request_firmware_work_func+0x126/0x242 [ 26.095008][ T1716] ? request_firmware_into_buf+0x90/0x90 [ 26.100726][ T1716] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 26.106709][ T1716] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 26.112098][ T1716] process_one_work+0x92b/0x1530 [ 26.117035][ T1716] ? pwq_dec_nr_in_flight+0x310/0x310 [ 26.122592][ T1716] ? do_raw_spin_lock+0x11a/0x280 [ 26.127615][ T1716] worker_thread+0x96/0xe20 [ 26.132