Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.403411][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 27.643395][ T21] usb 1-1: Using ep0 maxpacket: 8 [ 27.763452][ T21] usb 1-1: config 0 has an invalid descriptor of length 9, skipping remainder of the config [ 27.773740][ T21] usb 1-1: New USB device found, idVendor=2040, idProduct=b700, bcdDevice=cd.c7 [ 27.782776][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 27.792173][ T21] usb 1-1: config 0 descriptor?? [ 27.835331][ T21] usb 1-1: dvb_usb_v2: found a 'Hauppauge 117xxx ATSC+' in warm state [ 27.846649][ T21] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 27.857450][ T21] dvbdev: DVB: registering new adapter (Hauppauge 117xxx ATSC+) [ 27.865309][ T21] usb 1-1: media controller created [ 27.874461][ T21] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 27.890028][ T21] usb 1-1: selecting invalid altsetting 1 [ 27.895871][ T21] set interface failed [ 27.895879][ T21] INFO: trying to register non-static key. [ 27.905782][ T21] the code is fine but needs lockdep annotation. [ 27.912083][ T21] turning off the locking correctness validator. [ 27.918428][ T21] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.2.0-rc1+ #10 [ 27.925885][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.935930][ T21] Workqueue: usb_hub_wq hub_event [ 27.940927][ T21] Call Trace: [ 27.944289][ T21] dump_stack+0xca/0x13e [ 27.948691][ T21] register_lock_class+0x11ae/0x1240 [ 27.953992][ T21] ? is_dynamic_key+0x1b0/0x1b0 [ 27.958827][ T21] ? lock_downgrade+0x630/0x630 [ 27.963658][ T21] __lock_acquire+0x11d/0x5340 [ 27.968533][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 27.973831][ T21] ? console_unlock+0x615/0xbf0 [ 27.978706][ T21] ? mark_held_locks+0xe0/0xe0 [ 27.983454][ T21] ? dev_vprintk_emit+0x4fc/0x541 [ 27.988463][ T21] ? __lock_acquire+0x54a/0x5340 [ 27.993387][ T21] ? find_held_lock+0x2d/0x110 [ 27.998140][ T21] ? format_decode+0x230/0xad0 [ 28.002984][ T21] lock_acquire+0x100/0x2b0 [ 28.007480][ T21] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 28.012494][ T21] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 28.017509][ T21] __mutex_lock+0xf9/0x12b0 [ 28.022014][ T21] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 28.027044][ T21] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 28.032230][ T21] ? mutex_trylock+0x1a0/0x1a0 [ 28.036987][ T21] ? memcpy+0x35/0x50 [ 28.040964][ T21] ? lock_downgrade+0x630/0x630 [ 28.045794][ T21] ? mark_held_locks+0x9f/0xe0 [ 28.050562][ T21] ? vprintk_emit+0x112/0x3e0 [ 28.055232][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 28.060599][ T21] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 28.065612][ T21] mxl111sf_ctrl_msg+0xb8/0x210 [ 28.070460][ T21] mxl111sf_write_reg+0x8b/0x120 [ 28.075420][ T21] ? mxl111sf_frontend_attach_mercury_mh+0x940/0x940 [ 28.082304][ T21] ? usb_set_interface+0x79c/0xa50 [ 28.087410][ T21] mxl1x1sf_soft_reset+0x6b/0x190 [ 28.092460][ T21] mxl111sf_lgdt3305_frontend_attach.constprop.0+0x23e/0x790 [ 28.099982][ T21] mxl111sf_frontend_attach_atsc_mh+0x13/0x70 [ 28.106143][ T21] ? mxl111sf_lg2160_frontend_attach+0x900/0x900 [ 28.112580][ T21] dvb_usbv2_probe.cold+0x1e04/0x255d [ 28.117943][ T21] ? dvb_usb_start_feed+0xb40/0xb40 [ 28.123126][ T21] ? rpm_callback+0x230/0x230 [ 28.127788][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 28.133062][ T21] ? __pm_runtime_resume+0x111/0x180 [ 28.138334][ T21] usb_probe_interface+0x305/0x7a0 [ 28.143544][ T21] ? usb_probe_device+0x100/0x100 [ 28.148553][ T21] really_probe+0x281/0x660 [ 28.153038][ T21] driver_probe_device+0x104/0x210 [ 28.158133][ T21] __device_attach_driver+0x1c2/0x220 [ 28.163490][ T21] ? driver_allows_async_probing+0x160/0x160 [ 28.169463][ T21] bus_for_each_drv+0x15c/0x1e0 [ 28.174392][ T21] ? bus_rescan_devices+0x20/0x20 [ 28.179581][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.185548][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 28.190874][ T21] __device_attach+0x217/0x360 [ 28.195631][ T21] ? device_bind_driver+0xd0/0xd0 [ 28.200637][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 28.205904][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 28.211182][ T21] bus_probe_device+0x1e4/0x290 [ 28.216028][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 28.221906][ T21] device_add+0xae6/0x16f0 [ 28.226309][ T21] ? uevent_store+0x50/0x50 [ 28.230797][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.236594][ T21] usb_set_configuration+0xdf6/0x1670 [ 28.241999][ T21] generic_probe+0x9d/0xd5 [ 28.246417][ T21] usb_probe_device+0x99/0x100 [ 28.251171][ T21] ? usb_suspend+0x620/0x620 [ 28.255808][ T21] really_probe+0x281/0x660 [ 28.260401][ T21] driver_probe_device+0x104/0x210 [ 28.265545][ T21] __device_attach_driver+0x1c2/0x220 [ 28.270914][ T21] ? driver_allows_async_probing+0x160/0x160 [ 28.276922][ T21] bus_for_each_drv+0x15c/0x1e0 [ 28.281775][ T21] ? bus_rescan_devices+0x20/0x20 [ 28.286820][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.292613][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 28.297919][ T21] __device_attach+0x217/0x360 [ 28.302666][ T21] ? device_bind_driver+0xd0/0xd0 [ 28.307714][ T21] ? kobject_uevent_env+0x29e/0x1150 [ 28.313329][ T21] ? kobject_uevent_env+0x2a8/0x1150 [ 28.318613][ T21] bus_probe_device+0x1e4/0x290 [ 28.323449][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 28.329410][ T21] device_add+0xae6/0x16f0 [ 28.333808][ T21] ? uevent_store+0x50/0x50 [ 28.338641][ T21] usb_new_device.cold+0x8c1/0x1016 [ 28.343826][ T21] ? usb_port_suspend+0xa40/0xa40 [ 28.350429][ T21] ? mark_held_locks+0x9f/0xe0 [ 28.355177][ T21] ? _raw_spin_unlock_irq+0x24/0x30 [ 28.360353][ T21] hub_event+0x1ada/0x3590 [ 28.364748][ T21] ? hub_port_debounce+0x260/0x260 [ 28.370049][ T21] process_one_work+0x905/0x1570 [ 28.375141][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 28.380490][ T21] ? do_raw_spin_lock+0x11a/0x280 [ 28.385496][ T21] worker_thread+0x96/0xe20 [ 28.390027][ T21] ? proce