Warning: Permanently added '10.128.1.58' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.382012][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 42.621949][ T22] usb 1-1: Using ep0 maxpacket: 16 [ 42.742036][ T22] usb 1-1: config 255 interface 0 has no altsetting 0 [ 42.981987][ T22] usb 1-1: string descriptor 0 read error: -22 [ 42.988281][ T22] usb 1-1: New USB device found, idVendor=2040, idProduct=c60c, bcdDevice=41.08 [ 42.997358][ T22] usb 1-1: New USB device strings: Mfr=8, Product=0, SerialNumber=255 [ 43.044927][ T22] usb 1-1: dvb_usb_v2: found a 'Hauppauge 126xxx DVBT' in warm state [ 43.054542][ T22] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 43.065104][ T22] dvbdev: DVB: registering new adapter (Hauppauge 126xxx DVBT) [ 43.072886][ T22] usb 1-1: media controller created [ 43.082065][ T22] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 43.095129][ T22] usb 1-1: selecting invalid altsetting 2 [ 43.100849][ T22] set interface failed [ 43.100863][ T22] INFO: trying to register non-static key. [ 43.110819][ T22] the code is fine but needs lockdep annotation. [ 43.117112][ T22] turning off the locking correctness validator. [ 43.123420][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.2.0-rc6+ #13 [ 43.130843][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.140987][ T22] Workqueue: usb_hub_wq hub_event [ 43.145998][ T22] Call Trace: [ 43.149335][ T22] dump_stack+0xca/0x13e [ 43.153585][ T22] register_lock_class+0x11ae/0x1240 [ 43.158843][ T22] ? is_dynamic_key+0x1b0/0x1b0 [ 43.163777][ T22] __lock_acquire+0x11d/0x5340 [ 43.168566][ T22] ? find_held_lock+0x2d/0x110 [ 43.173320][ T22] ? __schedule+0x10a6/0x1680 [ 43.177967][ T22] ? mark_held_locks+0xe0/0xe0 [ 43.182711][ T22] ? mark_held_locks+0x9f/0xe0 [ 43.187453][ T22] ? _raw_spin_unlock_irq+0x24/0x30 [ 43.192619][ T22] ? lockdep_hardirqs_on+0x379/0x580 [ 43.197882][ T22] ? _raw_spin_unlock_irq+0x24/0x30 [ 43.203052][ T22] ? __schedule+0x10a6/0x1680 [ 43.207695][ T22] lock_acquire+0x100/0x2b0 [ 43.212267][ T22] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 43.217267][ T22] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 43.222260][ T22] __mutex_lock+0xf9/0x12b0 [ 43.226733][ T22] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 43.231745][ T22] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 43.236746][ T22] ? mutex_trylock+0x1a0/0x1a0 [ 43.241490][ T22] ? memcpy+0x35/0x50 [ 43.245490][ T22] ? lock_downgrade+0x630/0x630 [ 43.250317][ T22] ? mark_held_locks+0x9f/0xe0 [ 43.255058][ T22] ? vprintk_emit+0x112/0x3e0 [ 43.259706][ T22] ? lockdep_hardirqs_on+0x379/0x580 [ 43.264961][ T22] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 43.270089][ T22] mxl111sf_ctrl_msg+0xb8/0x210 [ 43.274933][ T22] mxl111sf_write_reg+0x8b/0x120 [ 43.279846][ T22] ? mxl111sf_frontend_attach_mercury_mh+0x940/0x940 [ 43.286509][ T22] ? usb_set_interface+0x79c/0xa50 [ 43.291609][ T22] mxl1x1sf_soft_reset+0x6b/0x190 [ 43.296606][ T22] mxl111sf_attach_demod+0x279/0x730 [ 43.301907][ T22] ? mxl111sf_attach_demod+0x730/0x730 [ 43.307343][ T22] dvb_usbv2_probe.cold+0x1e04/0x255d [ 43.312691][ T22] ? dvb_usb_start_feed+0xb40/0xb40 [ 43.317884][ T22] ? rpm_callback+0x230/0x230 [ 43.322535][ T22] ? lockdep_hardirqs_on+0x379/0x580 [ 43.327794][ T22] ? __pm_runtime_resume+0x111/0x180 [ 43.333060][ T22] usb_probe_interface+0x305/0x7a0 [ 43.338215][ T22] ? usb_probe_device+0x100/0x100 [ 43.343221][ T22] really_probe+0x281/0x660 [ 43.347725][ T22] driver_probe_device+0x104/0x210 [ 43.352811][ T22] __device_attach_driver+0x1c2/0x220 [ 43.358151][ T22] ? driver_allows_async_probing+0x160/0x160 [ 43.364106][ T22] bus_for_each_drv+0x15c/0x1e0 [ 43.368937][ T22] ? bus_rescan_devices+0x20/0x20 [ 43.373935][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 43.379880][ T22] ? lockdep_hardirqs_on+0x379/0x580 [ 43.385137][ T22] __device_attach+0x217/0x360 [ 43.389871][ T22] ? device_bind_driver+0xd0/0xd0 [ 43.394874][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 43.400141][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 43.405400][ T22] bus_probe_device+0x1e4/0x290 [ 43.410277][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 43.416238][ T22] device_add+0xae6/0x16f0 [ 43.429020][ T22] ? uevent_store+0x50/0x50 [ 43.433497][ T22] usb_set_configuration+0xdf6/0x1670 [ 43.438837][ T22] generic_probe+0x9d/0xd5 [ 43.443373][ T22] usb_probe_device+0x99/0x100 [ 43.448110][ T22] ? usb_suspend+0x620/0x620 [ 43.452677][ T22] really_probe+0x281/0x660 [ 43.457155][ T22] driver_probe_device+0x104/0x210 [ 43.462238][ T22] __device_attach_driver+0x1c2/0x220 [ 43.467579][ T22] ? driver_allows_async_probing+0x160/0x160 [ 43.473536][ T22] bus_for_each_drv+0x15c/0x1e0 [ 43.478359][ T22] ? bus_rescan_devices+0x20/0x20 [ 43.483366][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 43.489190][ T22] ? lockdep_hardirqs_on+0x379/0x580 [ 43.494455][ T22] __device_attach+0x217/0x360 [ 43.499192][ T22] ? device_bind_driver+0xd0/0xd0 [ 43.504189][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 43.509451][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 43.514716][ T22] bus_probe_device+0x1e4/0x290 [ 43.519653][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 43.525516][ T22] device_add+0xae6/0x16f0 [ 43.529902][ T22] ? uevent_store+0x50/0x50 [ 43.534385][ T22] usb_new_device.cold+0x8c1/0x1016 [ 43.539560][ T22] ? usb_port_suspend+0xa40/0xa40 [ 43.544565][ T22] ? mark_held_locks+0x9f/0xe0 [ 43.549313][ T22] ? _raw_spin_unlock_irq+0x24/0x30 [ 43.554488][ T22] hub_event+0x1ada/0x3590 [ 43.558879][ T22] ? hub_port_debounce+0x260/0x260 [ 43.563964][ T22] process_one_work+0x905/0x1570 [ 43.568933][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.574292][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 43.579341][ T22] worker_thread+0x96/0xe20 [ 43.584122][ T22] ? process_one_work+0x1570/0x1570 [ 43.589295][ T22] kthread+0x30b/0x410 [ 43.593335][ T22] ? kthread_park+0x1a0/0x1