forked to background, child pid 3050 no interfaces have a carrier [ 64.228496][ T3051] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.242381][ T3051] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.145' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 86.203225][ T115] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 86.443353][ T115] usb 1-1: Using ep0 maxpacket: 32 [ 86.563914][ T115] usb 1-1: config 0 has an invalid interface number: 18 but max is 0 [ 86.572075][ T115] usb 1-1: config 0 has no interface number 0 [ 86.578350][ T115] usb 1-1: config 0 interface 18 altsetting 0 endpoint 0x8D has an invalid bInterval 0, changing to 7 [ 86.589501][ T115] usb 1-1: config 0 interface 18 altsetting 0 endpoint 0x8D has invalid wMaxPacketSize 0 [ 86.599506][ T115] usb 1-1: config 0 interface 18 altsetting 0 endpoint 0x3 has invalid wMaxPacketSize 0 [ 86.609409][ T115] usb 1-1: config 0 interface 18 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 0 [ 86.619315][ T115] usb 1-1: config 0 interface 18 altsetting 0 endpoint 0x8B has invalid wMaxPacketSize 0 [ 86.629344][ T115] usb 1-1: config 0 interface 18 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 0 [ 86.639438][ T115] usb 1-1: New USB device found, idVendor=0df6, idProduct=0058, bcdDevice=6c.b1 [ 86.648706][ T115] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 86.659943][ T115] usb 1-1: config 0 descriptor?? [ 86.709333][ T115] r8712u: register rtl8712_netdev_ops to netdev_ops [ 86.716070][ T115] usb 1-1: r8712u: USB_SPEED_HIGH with 3 endpoints executing program [ 87.133421][ T115] ===================================================== [ 87.140465][ T115] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 87.146827][ T115] string+0x4ec/0x6f0 [ 87.150828][ T115] vsnprintf+0x2222/0x3650 [ 87.155262][ T115] pointer+0x1844/0x2060 [ 87.159512][ T115] vsnprintf+0x1a9b/0x3650 [ 87.163941][ T115] vprintk_store+0x537/0x2150 [ 87.168641][ T115] vprintk_emit+0x25c/0x950 [ 87.173169][ T115] dev_vprintk_emit+0x5ef/0x6d0 [ 87.178043][ T115] dev_printk_emit+0x1dd/0x21f [ 87.182837][ T115] __dev_printk+0x3be/0x440 [ 87.187368][ T115] _dev_info+0x1ea/0x22f [ 87.191639][ T115] r871xu_drv_init+0x1929/0x3070 [ 87.196611][ T115] usb_probe_interface+0xf19/0x1600 [ 87.201834][ T115] really_probe+0x653/0x14b0 [ 87.206444][ T115] __driver_probe_device+0x3e9/0x530 [ 87.211760][ T115] __device_attach_driver+0x79f/0x1120 [ 87.217237][ T115] bus_for_each_drv+0x2d6/0x3f0 [ 87.222101][ T115] __device_attach+0x593/0x8e0 [ 87.226883][ T115] device_initial_probe+0x4a/0x60 [ 87.231928][ T115] bus_probe_device+0x17b/0x3e0 [ 87.236794][ T115] device_add+0x1fff/0x26e0 [ 87.241321][ T115] usb_set_configuration+0x37e9/0x3ed0 [ 87.246822][ T115] usb_generic_driver_probe+0x13c/0x300 [ 87.252393][ T115] usb_probe_device+0x309/0x570 [ 87.257266][ T115] really_probe+0x653/0x14b0 [ 87.261876][ T115] __driver_probe_device+0x3e9/0x530 [ 87.267189][ T115] __device_attach_driver+0x79f/0x1120 [ 87.272683][ T115] bus_for_each_drv+0x2d6/0x3f0 [ 87.277542][ T115] __device_attach+0x593/0x8e0 [ 87.282328][ T115] device_initial_probe+0x4a/0x60 [ 87.287364][ T115] bus_probe_device+0x17b/0x3e0 [ 87.292242][ T115] device_add+0x1fff/0x26e0 [ 87.296763][ T115] usb_new_device+0x1b8e/0x2950 [ 87.301623][ T115] hub_event+0x58e3/0x89e0 [ 87.306049][ T115] process_one_work+0xdb6/0x1820 [ 87.310997][ T115] worker_thread+0x10b3/0x21e0 [ 87.315765][ T115] kthread+0x3c7/0x500 [ 87.319849][ T115] ret_from_fork+0x1f/0x30 [ 87.324282][ T115] [ 87.326598][ T115] Local variable data created at: [ 87.331603][ T115] usb_read8+0x5d/0x130 [ 87.335767][ T115] r8712_read8+0xa5/0xd0 [ 87.340024][ T115] [ 87.342353][ T115] CPU: 1 PID: 115 Comm: kworker/1:2 Not tainted 5.17.0-rc4-syzkaller #0 [ 87.350686][ T115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 87.360745][ T115] Workqueue: usb_hub_wq hub_event [ 87.365786][ T115] ===================================================== [ 87.372705][ T115] Disabling lock debugging due to kernel taint [ 87.378859][ T115] Kernel panic - not syncing: kmsan.panic set ... [ 87.385265][ T115] CPU: 1 PID: 115 Comm: kworker/1:2 Tainted: G B 5.17.0-rc4-syzkaller #0 [ 87.395000][ T115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 87.405068][ T115] Workqueue: usb_hub_wq hub_event [ 87.410133][ T115] Call Trace: [ 87.413411][ T115] [ 87.416337][ T115] dump_stack_lvl+0x1ff/0x28e [ 87.421046][ T115] dump_stack+0x25/0x28 [ 87.425220][ T115] panic+0x487/0xe1f [ 87.429141][ T115] ? add_taint+0x181/0x210 [ 87.433573][ T115] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 87.439402][ T115] kmsan_report+0x2e6/0x2f0 [ 87.443943][ T115] ? __msan_warning+0xb8/0x130 [ 87.448727][ T115] ? string+0x4ec/0x6f0 [ 87.452895][ T115] ? vsnprintf+0x2222/0x3650 [ 87.457493][ T115] ? pointer+0x1844/0x2060 [ 87.461920][ T115] ? vsnprintf+0x1a9b/0x3650 [ 87.466518][ T115] ? vprintk_store+0x537/0x2150 [ 87.471408][ T115] ? vprintk_emit+0x25c/0x950 [ 87.476117][ T115] ? dev_vprintk_emit+0x5ef/0x6d0 [ 87.481167][ T115] ? dev_printk_emit+0x1dd/0x21f [ 87.486121][ T115] ? __dev_printk+0x3be/0x440 [ 87.490826][ T115] ? _dev_info+0x1ea/0x22f [ 87.495261][ T115] ? r871xu_drv_init+0x1929/0x3070 [ 87.500388][ T115] ? usb_probe_interface+0xf19/0x1600 [ 87.505787][ T115] ? really_probe+0x653/0x14b0 [ 87.510566][ T115] ? __driver_probe_device+0x3e9/0x530 [ 87.516054][ T115] ? __device_attach_driver+0x79f/0x1120 [ 87.521701][ T115] ? bus_for_each_drv+0x2d6/0x3f0 [ 87.526749][ T115] ? __device_attach+0x593/0x8e0 [ 87.531727][ T115] ? device_initial_probe+0x4a/0x60 [ 87.536941][ T115] ? bus_probe_device+0x17b/0x3e0 [ 87.541974][ T115] ? device_add+0x1fff/0x26e0 [ 87.546669][ T115] ? usb_set_configuration+0x37e9/0x3ed0 [ 87.552325][ T115] ? usb_generic_driver_probe+0x13c/0x300 [ 87.558094][ T115] ? usb_probe_device+0x309/0x570 [ 87.563142][ T115] ? really_probe+0x653/0x14b0 [ 87.567962][ T115] ? __driver_probe_device+0x3e9/0x530 [ 87.573452][ T115] ? __device_attach_driver+0x79f/0x1120 [ 87.579100][ T115] ? bus_for_each_drv+0x2d6/0x3f0 [ 87.584136][ T115] ? __device_attach+0x593/0x8e0 [ 87.589088][ T115] ? device_initial_probe+0x4a/0x60 [ 87.594300][ T115] ? bus_probe_device+0x17b/0x3e0 [ 87.599333][ T115] ? device_add+0x1fff/0x26e0 [ 87.604040][ T115] ? usb_new_device+0x1b8e/0x2950 [ 87.609078][ T115] ? hub_event+0x58e3/0x89e0 [ 87.613677][ T115] ? process_one_work+0xdb6/0x1820 [ 87.618806][ T115] ? worker_thread+0x10b3/0x21e0 [ 87.623756][ T115] ? kthread+0x3c7/0x500 [ 87.628017][ T115] ? ret_from_fork+0x1f/0x30 [ 87.632627][ T115] ? stack_trace_save+0x43/0x60 [ 87.637509][ T115] ? __stack_depot_save+0x21/0x4d0 [ 87.642646][ T115] ? kmsan_get_metadata+0x33/0x220 [ 87.647787][ T115] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 87.654059][ T115] ? kmsan_get_metadata+0x33/0x220 [ 87.659195][ T115] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 87.665053][ T115] __msan_warning+0xb8/0x130 [ 87.669666][ T115] string+0x4ec/0x6f0 [ 87.673668][ T115] vsnprintf+0x2222/0x3650 [ 87.678113][ T115] pointer+0x1844/0x2060 [ 87.682368][ T115] ? kmsan_get_metadata+0x33/0x220 [ 87.687509][ T115] vsnprintf+0x1a9b/0x3650 [ 87.691952][ T115] vprintk_store+0x537/0x2150 [ 87.696689][ T115] ? vsnprintf+0x355b/0x3650 [ 87.701304][ T115] ? snprintf+0x24a/0x290 [ 87.705649][ T115] vprintk_emit+0x25c/0x950 [ 87.710183][ T115] dev_vprintk_emit+0x5ef/0x6d0 [ 87.715072][ T115] dev_printk_emit+0x1dd/0x21f [ 87.719875][ T115] __dev_printk+0x3be/0x440 [ 87.724418][ T115] _dev_info+0x1ea/0x22f [ 87.728689][ T115] ? usb_read8+0xe7/0x130 [ 87.733034][ T115] ? r871xu_drv_init+0x185e/0x3070 [ 87.738182][ T115] ? r8712_read8+0xa5/0xd0 [ 87.742616][ T115] r871xu_drv_init+0x1929/0x3070 [ 87.747578][ T115] ? __pm_runtime_set_status+0x1aed/0x1e40 [ 87.753409][ T115] ? kmsan_get_metadata+0x33/0x220 [ 87.758548][ T115] ? r871x_dev_unload+0x310/0x310 [ 87.763593][ T115] ? r871x_dev_unload+0x310/0x310 [ 87.768636][ T115] usb_probe_interface+0xf19/0x1600 [ 87.773900][ T115] ? kmsan_get_metadata+0x33/0x220 [ 87.779068][ T115] ? usb_register_driver+0x900/0x900 [ 87.784395][ T115] really_probe+0x653/0x14b0 [ 87.789021][ T115] __driver_probe_device+0x3e9/0x530 [ 87.794352][ T115] __device_attach_driver+0x79f/0x1120 [ 87.799855][ T115] bus_for_each_drv+0x2d6/0x3f0 [ 87.804725][ T115] ? deferred_probe_work_func+0x4c0/0x4c0 [ 87.810476][ T115] __device_attach+0x593/0x8e0 [ 87.815265][ T115] ? btf_func_check_meta+0x1a1/0x8d0 [ 87.820574][ T115] device_initial_probe+0x4a/0x60 [ 87.825618][ T115] bus_probe_device+0x17b/0x3e0 [ 87.830492][ T115] device_add+0x1fff/0x26e0 [ 87.835027][ T115] usb_set_configuration+0x37e9/0x3ed0 [ 87.840518][ T115] ? usb_set_configuration+0xb11/0x3ed0 [ 87.846111][ T115] usb_generic_driver_probe+0x13c/0x300 [ 87.851683][ T115] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 87.857541][ T115] ? usb_choose_configuration+0xf90/0xf90 [ 87.863285][ T115] usb_probe_device+0x309/0x570 [ 87.868174][ T115] ? kmsan_get_metadata+0x33/0x220 [ 87.873314][ T115] ? usb_register_device_driver+0x580/0x580 [ 87.879236][ T115] really_probe+0x653/0x14b0 [ 87.883853][ T115] __driver_probe_device+0x3e9/0x530 [ 87.889165][ T115] __device_attach_driver+0x79f/0x1120 [ 87.894649][ T115] bus_for_each_drv+0x2d6/0x3f0 [ 87.899509][ T115] ? deferred_probe_work_func+0x4c0/0x4c0 [ 87.905255][ T115] __device_attach+0x593/0x8e0 [ 87.910041][ T115] ? btf_func_check_meta+0x1a1/0x8d0 [ 87.915350][ T115] device_initial_probe+0x4a/0x60 [ 87.920391][ T115] bus_probe_device+0x17b/0x3e0 [ 87.925263][ T115] device_add+0x1fff/0x26e0 [ 87.929800][ T115] usb_new_device+0x1b8e/0x2950 [ 87.934678][ T115] hub_event+0x58e3/0x89e0 [ 87.939137][ T115] ? kmsan_get_metadata+0x33/0x220 [ 87.944274][ T115] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 87.950139][ T115] ? led_work+0x7b0/0x7b0 [ 87.954478][ T115] process_one_work+0xdb6/0x1820 [ 87.959446][ T115] worker_thread+0x10b3/0x21e0 [ 87.964238][ T115] kthread+0x3c7/0x500 [ 87.968324][ T115] ? worker_clr_flags+0x370/0x370 [ 87.973361][ T115] ? kthread_blkcg+0x120/0x120 [ 87.978147][ T115] ret_from_fork+0x1f/0x30 [ 87.982592][ T115] [ 87.985821][ T115] Kernel Offset: disabled [ 87.990150][ T115] Rebooting in 86400 seconds..