[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[ 15.150053][ C1] random: crng init done [?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 '10.128.0.49' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 42.545745][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 42.553432][ T102] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 42.555653][ T83] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 42.561418][ T1735] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 42.568528][ T17] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 42.576029][ T5] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 42.815642][ T83] usb 6-1: Using ep0 maxpacket: 8 [ 42.820812][ T17] usb 5-1: Using ep0 maxpacket: 8 [ 42.825644][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 42.831106][ T102] usb 4-1: Using ep0 maxpacket: 8 [ 42.836212][ T1735] usb 2-1: Using ep0 maxpacket: 8 [ 42.841343][ T5] usb 3-1: Using ep0 maxpacket: 8 [ 42.945805][ T12] usb 1-1: config 0 has an invalid interface number: 185 but max is 0 [ 42.954126][ T12] usb 1-1: config 0 has no interface number 0 [ 42.960398][ T1735] usb 2-1: config 0 has an invalid interface number: 185 but max is 0 [ 42.965751][ T83] usb 6-1: config 0 has an invalid interface number: 185 but max is 0 [ 42.968707][ T1735] usb 2-1: config 0 has no interface number 0 [ 42.976867][ T83] usb 6-1: config 0 has no interface number 0 [ 42.983238][ T102] usb 4-1: config 0 has an invalid interface number: 185 but max is 0 [ 42.989735][ T17] usb 5-1: config 0 has an invalid interface number: 185 but max is 0 [ 42.997387][ T102] usb 4-1: config 0 has no interface number 0 [ 42.997446][ T5] usb 3-1: config 0 has an invalid interface number: 185 but max is 0 [ 43.005700][ T17] usb 5-1: config 0 has no interface number 0 [ 43.011760][ T5] usb 3-1: config 0 has no interface number 0 [ 43.020582][ T83] usb 6-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 43.026161][ T12] usb 1-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 43.032201][ T83] usb 6-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 43.032240][ T83] usb 6-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 43.042139][ T12] usb 1-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 43.051987][ T83] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.061941][ T12] usb 1-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 43.071718][ T17] usb 5-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 43.081022][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.081125][ T102] usb 4-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 43.089063][ T17] usb 5-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 43.089094][ T17] usb 5-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 43.098138][ T102] usb 4-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 43.098167][ T102] usb 4-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 43.107975][ T17] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.115970][ T102] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.133170][ T83] usb 6-1: config 0 descriptor?? [ 43.135776][ T1735] usb 2-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 43.152200][ T17] usb 5-1: config 0 descriptor?? [ 43.154839][ T1735] usb 2-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 43.209945][ T1735] usb 2-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 43.219009][ T1735] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.227055][ T5] usb 3-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 43.236931][ T5] usb 3-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 43.246981][ T5] usb 3-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 43.256071][ T5] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.265182][ T12] usb 1-1: config 0 descriptor?? [ 43.270584][ T5] usb 3-1: config 0 descriptor?? [ 43.276769][ T102] usb 4-1: config 0 descriptor?? [ 43.283099][ T1735] usb 2-1: config 0 descriptor?? executing program executing program [ 43.395715][ T83] usb 6-1: usb_control_msg returned -71 [ 43.401361][ T83] usbtmc 6-1:0.185: can't read capabilities [ 43.417027][ T17] usb 5-1: usb_control_msg returned -71 [ 43.422588][ T17] usbtmc 5-1:0.185: can't read capabilities [ 43.433681][ T83] usb 6-1: USB disconnect, device number 2 [ 43.441622][ T17] sysfs: cannot create duplicate filename '/class/usbmisc/usbtmc0' [ 43.449601][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.3.0-rc4+ #26 [ 43.457051][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.467104][ T17] Workqueue: usb_hub_wq hub_event [ 43.472120][ T17] Call Trace: [ 43.475390][ T17] dump_stack+0xca/0x13e [ 43.479624][ T17] sysfs_warn_dup.cold+0x1c/0x29 [ 43.484554][ T17] sysfs_do_create_link_sd.isra.0+0x10f/0x130 [ 43.490614][ T17] sysfs_create_link+0x61/0xc0 executing program [ 43.495375][ T17] device_add+0x788/0x16f0 [ 43.499776][ T17] ? uevent_store+0x50/0x50 [ 43.504419][ T17] ? rcu_read_lock_sched_held+0x113/0x130 [ 43.510127][ T17] ? kfree+0x287/0x2f0 [ 43.514186][ T17] device_create_groups_vargs+0x203/0x280 [ 43.519898][ T17] device_create+0xdf/0x120 [ 43.524438][ T17] ? device_create_vargs+0x50/0x50 [ 43.529647][ T17] ? down_write+0xe0/0x150 [ 43.534058][ T17] ? __down_timeout+0x2d0/0x2d0 [ 43.539010][ T17] usb_register_dev+0x279/0x6a0 [ 43.543865][ T17] ? usb_open+0x270/0x270 [ 43.545721][ T1735] usb 2-1: usb_control_msg returned -71 [ 43.548187][ T17] usbtmc_probe+0xe17/0x1320 [ 43.548201][ T17] ? usbtmc_interrupt+0x500/0x500 [ 43.548215][ T17] ? rpm_callback+0x230/0x230 [ 43.548228][ T17] ? __pm_runtime_resume+0x111/0x180 [ 43.548240][ T17] usb_probe_interface+0x305/0x7a0 [ 43.548251][ T17] ? usb_probe_device+0x100/0x100 [ 43.548264][ T17] really_probe+0x281/0x6d0 [ 43.548282][ T17] driver_probe_device+0x101/0x1b0 [ 43.553839][ T1735] usbtmc 2-1:0.185: can't read capabilities [ 43.558398][ T17] __device_attach_driver+0x1c2/0x220 [ 43.558411][ T17] ? driver_allows_async_probing+0x160/0x160 [ 43.558422][ T17] bus_for_each_drv+0x162/0x1e0 [ 43.558432][ T17] ? bus_rescan_devices+0x20/0x20 [ 43.558446][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 43.558457][ T17] ? lockdep_hardirqs_on+0x379/0x580 [ 43.558468][ T17] __device_attach+0x217/0x360 [ 43.558480][ T17] ? device_bind_driver+0xd0/0xd0 [ 43.558492][ T17] ? kobject_uevent_env+0x29e/0x1160 [ 43.558504][ T17] ? kobject_uevent_env+0x2a8/0x1160 [ 43.558522][ T17] bus_probe_device+0x1e4/0x290 [ 43.578270][ T1735] usb 2-1: USB disconnect, device number 2 [ 43.578617][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 43.578630][ T17] device_add+0xae6/0x16f0 [ 43.578640][ T17] ? uevent_store+0x50/0x50 [ 43.578653][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 43.578667][ T17] usb_set_configuration+0xdf6/0x1670 [ 43.578682][ T17] generic_probe+0x9d/0xd5 [ 43.578693][ T17] usb_probe_device+0x99/0x100 [ 43.578704][ T17] ? usb_suspend+0x620/0x620 [ 43.578716][ T17] really_probe+0x281/0x6d0 [ 43.578728][ T17] driver_probe_device+0x101/0x1b0 [ 43.578742][ T17] __device_attach_driver+0x1c2/0x220 [ 43.578756][ T17] ? driver_allows_async_probing+0x160/0x160 [ 43.578767][ T17] bus_for_each_drv+0x162/0x1e0 [ 43.578777][ T17] ? bus_rescan_devices+0x20/0x20 [ 43.578789][ T17] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 43.578801][ T17] ? lockdep_hardirqs_on+0x379/0x580 [ 43.578812][ T17] __device_attach+0x217/0x360 [ 43.578823][ T17] ? device_bind_driver+0xd0/0xd0 [ 43.578835][ T17] ? kobject_uevent_env+0x29e/0x1160 [ 43.578848][ T17] ? kobject_uevent_env+0x2a8/0x1160 [ 43.578860][ T17] bus_probe_device+0x1e4/0x290 [ 43.578870][ T17] ? blocking_notifier_call_chain+0x54/0xa0 [ 43.578881][ T17] device_add+0xae6/0x16f0 [ 43.578891][ T17] ? uevent_store+0x50/0x50 [ 43.578902][ T17] usb_new_device.cold+0x6a4/0xe79 [ 43.578919][ T17] hub_event+0x1b5c/0x3640 [ 43.793810][ T17] ? hub_port_debounce+0x260/0x260 [ 43.798916][ T17] process_one_work+0x92b/0x1530 [ 43.803843][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.809192][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 43.814199][ T17] worker_thread+0x96/0xe20 [ 43.818682][ T17] ? process_one_work+0x1530/0x1530 [ 43.824000][ T17] kthread+0x318/0x420 [ 43.828049][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 43.833418][ T17] ret_from_fork+0x24/0x30 executing program executing program executing program [ 43.846484][ T17] usbtmc 5-1:0.185: Not able to get a minor (base 176, slice default): -17 [ 43.855738][ T5] usb 3-1: usb_control_msg returned -71 [ 43.855905][ T17] usbtmc: probe of 5-1:0.185 failed with error -17 [ 43.861385][ T5] usbtmc 3-1:0.185: can't read capabilities [ 43.872275][ T17] usb 5-1: USB disconnect, device number 2 [ 43.873994][ T12] usb 1-1: usb_control_msg returned -71 [ 43.885414][ T12] usbtmc 1-1:0.185: can't read capabilities [ 43.891423][ T102] usb 4-1: usb_control_msg returned -71 [ 43.897018][ T102] usbtmc 4-1:0.185: can't read capabilities [ 43.906671][ T102] usb 4-1: USB disconnect, device number 2 [ 43.915712][ T5] usb 3-1: USB disconnect, device number 2 [ 43.927262][ T12] usb 1-1: USB disconnect, device number 2 [ 43.965630][ T1735] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 44.185621][ T83] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 44.206584][ T1735] usb 2-1: Using ep0 maxpacket: 8 [ 44.245654][ T17] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 44.275621][ T5] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 44.283238][ T102] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 44.290872][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 44.336267][ T1735] usb 2-1: config 0 has an invalid interface number: 185 but max is 0 [ 44.344473][ T1735] usb 2-1: config 0 has no interface number 0 [ 44.350981][ T1735] usb 2-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 44.360953][ T1735] usb 2-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 44.371040][ T1735] usb 2-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 44.380084][ T1735] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.389137][ T1735] usb 2-1: config 0 descriptor?? [ 44.445706][ T83] usb 6-1: Using ep0 maxpacket: 8 [ 44.485695][ T17] usb 5-1: Using ep0 maxpacket: 8 [ 44.535606][ T5] usb 3-1: Using ep0 maxpacket: 8 [ 44.545739][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 44.550879][ T102] usb 4-1: Using ep0 maxpacket: 8 [ 44.565737][ T83] usb 6-1: config 0 has an invalid interface number: 185 but max is 0 [ 44.573937][ T83] usb 6-1: config 0 has no interface number 0 executing program [ 44.580546][ T83] usb 6-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 44.590410][ T83] usb 6-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 44.600410][ T83] usb 6-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 44.609450][ T83] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.617638][ T17] usb 5-1: config 0 has an invalid interface number: 185 but max is 0 [ 44.625836][ T17] usb 5-1: config 0 has no interface number 0 [ 44.637158][ T83] usb 6-1: config 0 descriptor?? [ 44.642366][ T17] usb 5-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 44.645674][ T1735] usb 2-1: usb_control_msg returned -71 [ 44.652220][ T17] usb 5-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 44.652248][ T17] usb 5-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 44.657984][ T1735] usbtmc 2-1:0.185: can't read capabilities [ 44.667782][ T17] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.677637][ T5] usb 3-1: config 0 has an invalid interface number: 185 but max is 0 [ 44.688102][ T17] usb 5-1: config 0 descriptor?? [ 44.690778][ T5] usb 3-1: config 0 has no interface number 0 [ 44.711070][ T12] usb 1-1: config 0 has an invalid interface number: 185 but max is 0 [ 44.719491][ T12] usb 1-1: config 0 has no interface number 0 [ 44.725642][ T102] usb 4-1: config 0 has an invalid interface number: 185 but max is 0 [ 44.733791][ T102] usb 4-1: config 0 has no interface number 0 [ 44.739930][ T102] usb 4-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 44.749861][ T102] usb 4-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 44.759854][ T102] usb 4-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 44.768928][ T102] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.777006][ T12] usb 1-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 44.786910][ T12] usb 1-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 44.796894][ T12] usb 1-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 44.805950][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.814241][ T5] usb 3-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 44.824191][ T5] usb 3-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 executing program [ 44.834119][ T5] usb 3-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 44.843170][ T5] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.852974][ T1735] usb 2-1: USB disconnect, device number 3 [ 44.863308][ T12] usb 1-1: config 0 descriptor?? [ 44.868617][ T102] usb 4-1: config 0 descriptor?? [ 44.876033][ T5] usb 3-1: config 0 descriptor?? executing program [ 44.905712][ T83] usb 6-1: usb_control_msg returned -71 [ 44.911351][ T83] usbtmc 6-1:0.185: can't read capabilities [ 44.923532][ T83] usb 6-1: USB disconnect, device number 3 [ 44.965695][ T17] usb 5-1: usb_control_msg returned -71 [ 44.971352][ T17] usbtmc 5-1:0.185: can't read capabilities [ 44.984332][ T17] usb 5-1: USB disconnect, device number 3 executing program executing program executing program [ 45.135731][ T12] usb 1-1: usb_control_msg returned -71 [ 45.141561][ T12] usbtmc 1-1:0.185: can't read capabilities [ 45.147669][ T102] usb 4-1: usb_control_msg returned -71 [ 45.153219][ T102] usbtmc 4-1:0.185: can't read capabilities [ 45.159210][ T5] usb 3-1: usb_control_msg returned -71 [ 45.164765][ T5] usbtmc 3-1:0.185: can't read capabilities [ 45.177854][ T5] usb 3-1: USB disconnect, device number 3 [ 45.184577][ T12] usb 1-1: USB disconnect, device number 3 [ 45.190869][ T102] usb 4-1: USB disconnect, device number 3 [ 45.255780][ T1735] usb 2-1: new high-speed USB device number 4 using dummy_hcd [ 45.315630][ T83] usb 6-1: new high-speed USB device number 4 using dummy_hcd [ 45.335676][ T17] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 45.495611][ T1735] usb 2-1: Using ep0 maxpacket: 8 [ 45.545712][ T102] usb 4-1: new high-speed USB device number 4 using dummy_hcd [ 45.553304][ T12] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 45.560910][ T5] usb 3-1: new high-speed USB device number 4 using dummy_hcd [ 45.565619][ T83] usb 6-1: Using ep0 maxpacket: 8 [ 45.575729][ T17] usb 5-1: Using ep0 maxpacket: 8 [ 45.615767][ T1735] usb 2-1: config 0 has an invalid interface number: 185 but max is 0 [ 45.624015][ T1735] usb 2-1: config 0 has no interface number 0 [ 45.630160][ T1735] usb 2-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 45.640030][ T1735] usb 2-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 45.650012][ T1735] usb 2-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 45.659074][ T1735] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.668072][ T1735] usb 2-1: config 0 descriptor?? [ 45.695850][ T17] usb 5-1: config 0 has an invalid interface number: 185 but max is 0 [ 45.704070][ T17] usb 5-1: config 0 has no interface number 0 [ 45.710305][ T83] usb 6-1: config 0 has an invalid interface number: 185 but max is 0 [ 45.718552][ T83] usb 6-1: config 0 has no interface number 0 [ 45.724660][ T17] usb 5-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 45.734532][ T17] usb 5-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 45.744517][ T17] usb 5-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 45.753602][ T17] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.761908][ T83] usb 6-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 45.772337][ T83] usb 6-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 45.782319][ T83] usb 6-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 45.791420][ T83] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.800758][ T17] usb 5-1: config 0 descriptor?? [ 45.806247][ T83] usb 6-1: config 0 descriptor?? [ 45.815770][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 45.820979][ T102] usb 4-1: Using ep0 maxpacket: 8 [ 45.826115][ T5] usb 3-1: Using ep0 maxpacket: 8 executing program [ 45.935734][ T1735] usb 2-1: usb_control_msg returned -71 [ 45.941369][ T1735] usbtmc 2-1:0.185: can't read capabilities [ 45.947486][ T12] usb 1-1: config 0 has an invalid interface number: 185 but max is 0 [ 45.955746][ T12] usb 1-1: config 0 has no interface number 0 [ 45.961888][ T5] usb 3-1: config 0 has an invalid interface number: 185 but max is 0 [ 45.970219][ T5] usb 3-1: config 0 has no interface number 0 [ 45.976396][ T102] usb 4-1: config 0 has an invalid interface number: 185 but max is 0 [ 45.984551][ T102] usb 4-1: config 0 has no interface number 0 [ 45.993092][ T1735] usb 2-1: USB disconnect, device number 4 [ 45.999104][ T102] usb 4-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 46.009007][ T102] usb 4-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 46.018990][ T102] usb 4-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 46.028068][ T102] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 46.036154][ T12] usb 1-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 46.046246][ T12] usb 1-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 46.056221][ T12] usb 1-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 46.056263][ T1761] divide error: 0000 [#1] SMP KASAN [ 46.065261][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 46.070444][ T1761] CPU: 1 PID: 1761 Comm: syz-executor063 Not tainted 5.3.0-rc4+ #26 [ 46.070450][ T1761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.070469][ T1761] RIP: 0010:usbtmc_generic_read+0x135/0x1190 [ 46.070479][ T1761] Code: 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 50 08 00 00 41 0f b7 6e 34 31 d2 31 ff 8b 44 24 28 f5 89 d6 41 89 d4 e8 2f 54 c9 fd 44 8b 6c 24 28 45 85 e4 44 89 [ 46.070485][ T1761] RSP: 0018:ffff8881d2b77a58 EFLAGS: 00010246 [ 46.070494][ T1761] RAX: 0000000000000002 RBX: 000000004f894bad RCX: ffffffff837487cd [ 46.070500][ T1761] RDX: 0000000000000000 RSI: ffffffff837487da RDI: 0000000000000000 [ 46.070506][ T1761] RBP: 0000000000000000 R08: ffff8881d20a0000 R09: ffffed103a56ef90 [ 46.070520][ T1761] R10: ffffed103a56ef8f R11: 0000000000000003 R12: ffff8881d08e7180 [ 46.070534][ T1761] R13: 0000000020000000 R14: ffff8881d0404c80 R15: ffff8881d08e7180 [ 46.078562][ T5] usb 3-1: config 0 interface 185 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 46.086442][ T1761] FS: 0000555555b74880(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 executing program [ 46.086452][ T1761] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.086459][ T1761] CR2: 00000000006cc090 CR3: 00000001d615e000 CR4: 00000000001406e0 [ 46.086463][ T1761] Call Trace: [ 46.086482][ T1761] ? mem_cgroup_commit_charge+0x153/0x240 [ 46.086502][ T1761] ? usbtmc_write+0xbc0/0xbc0 [ 46.096585][ T5] usb 3-1: config 0 interface 185 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 46.102516][ T1761] ? __might_fault+0x192/0x1d0 [ 46.122182][ T5] usb 3-1: New USB device found, idVendor=0798, idProduct=2e8c, bcdDevice=59.eb [ 46.128166][ T1761] usbtmc_ioctl+0x27d/0x2ab0 [ 46.128180][ T1761] ? lock_downgrade+0x6e0/0x6e0 [ 46.128199][ T1761] ? usbtmc_generic_read+0x1190/0x1190 [ 46.136181][ T5] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 46.144122][ T1761] ? do_raw_spin_lock+0x11a/0x280 [ 46.166379][ T102] usb 4-1: config 0 descriptor?? [ 46.167986][ T1761] ? finish_mkwrite_fault+0x450/0x450 [ 46.178502][ T12] usb 1-1: config 0 descriptor?? [ 46.186701][ T1761] ? rwlock_bug.part.0+0x90/0x90 [ 46.186717][ T1761] ? usbtmc_generic_read+0x1190/0x1190 [ 46.186744][ T1761] do_vfs_ioctl+0xd2d/0x1330 [ 46.194256][ T5] usb 3-1: config 0 descriptor?? [ 46.201263][ T1761] ? vmf_insert_mixed_mkwrite+0x30/0x30 [ 46.201275][ T1761] ? ioctl_preallocate+0x200/0x200 [ 46.201285][ T1761] ? lock_downgrade+0x6e0/0x6e0 [ 46.201294][ T1761] ? handle_mm_fault+0x1d5/0x900 [ 46.201303][ T1761] ? up_read+0x143/0x510 [ 46.201312][ T1761] ? down_read_non_owner+0x440/0x440 [ 46.201324][ T1761] ksys_ioctl+0x9b/0xc0 [ 46.201342][ T1761] __x64_sys_ioctl+0x6f/0xb0 [ 46.340215][ T1761] ? lockdep_hardirqs_on+0x379/0x580 [ 46.345478][ T1761] do_syscall_64+0xb7/0x580 [ 46.349961][ T1761] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.355824][ T1761] RIP: 0033:0x4419a9 [ 46.359694][ T1761] Code: e8 8c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 46.379290][ T1761] RSP: 002b:00007ffd0abd6738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program [ 46.387674][ T1761] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004419a9 [ 46.395619][ T1761] RDX: 0000000020000000 RSI: 00000000c0145b0e RDI: 0000000000000004 [ 46.403565][ T1761] RBP: 000000000000a984 R08: 000000000000000f R09: 00000000004002c8 [ 46.411518][ T1761] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402700 [ 46.419477][ T1761] R13: 0000000000402790 R14: 0000000000000000 R15: 0000000000000000 [ 46.427425][ T1761] Modules linked in: [ 46.431380][ T1761] ---[ end trace a91d281a4d83213c ]--- [ 46.436877][ T1761] RIP: 0010:usbtmc_generic_read+0x135/0x1190 [ 46.442855][ T1761] Code: 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 50 08 00 00 41 0f b7 6e 34 31 d2 31 ff 8b 44 24 28 f5 89 d6 41 89 d4 e8 2f 54 c9 fd 44 8b 6c 24 28 45 85 e4 44 89 [ 46.445692][ T12] usb 1-1: usb_control_msg returned -71 [ 46.462475][ T1761] RSP: 0018:ffff8881d2b77a58 EFLAGS: 00010246 [ 46.462487][ T1761] RAX: 0000000000000002 RBX: 000000004f894bad RCX: ffffffff837487cd [ 46.462495][ T1761] RDX: 0000000000000000 RSI: ffffffff837487da RDI: 0000000000000000 [ 46.462501][ T1761] RBP: 0000000000000000 R08: ffff8881d20a0000 R09: ffffed103a56ef90 [ 46.462516][ T1761] R10: ffffed103a56ef8f R11: 0000000000000003 R12: ffff8881d08e7180 [ 46.468109][ T12] usbtmc 1-1:0.185: can't read capabilities [ 46.474117][ T1761] R13: 0000000020000000 R14: ffff8881d0404c80 R15: ffff8881d08e7180 [ 46.483028][ T102] usb 4-1: usb_control_msg returned -71 [ 46.490058][ T1761] FS: 0000555555b74880(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 46.490068][ T1761] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.490075][ T1761] CR2: 00000000006cc090 CR3: 00000001d615e000 CR4: 00000000001406e0 [ 46.490082][ T1761] Kernel panic - not syncing: Fatal exception [ 46.498320][ T1761] Kernel Offset: disabled [ 46.559314][ T1761] Rebooting in 86400 seconds..