syzkaller login: [ 95.143642][ T115] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.86' (ECDSA) to the list of known hosts. executing program [ 96.442635][ T1529] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 96.692556][ T1529] usb 1-1: Using ep0 maxpacket: 32 [ 96.812954][ T1529] usb 1-1: config 0 has an invalid interface number: 130 but max is 0 [ 96.821236][ T1529] usb 1-1: config 0 has no interface number 0 [ 96.827555][ T1529] usb 1-1: New USB device found, idVendor=06f8, idProduct=e034, bcdDevice=86.50 [ 96.836792][ T1529] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 96.848093][ T1529] usb 1-1: config 0 descriptor?? [ 96.899314][ T1529] r8712u: register rtl8712_netdev_ops to netdev_ops [ 96.906119][ T1529] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints executing program [ 97.153708][ T1529] ===================================================== [ 97.160761][ T1529] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 97.167114][ T1529] string+0x4ec/0x6f0 [ 97.171129][ T1529] vsnprintf+0x2222/0x3650 [ 97.175563][ T1529] pointer+0x1844/0x2060 [ 97.179895][ T1529] vsnprintf+0x1a9b/0x3650 [ 97.184337][ T1529] vprintk_store+0x537/0x2150 [ 97.189035][ T1529] vprintk_emit+0x25c/0x950 [ 97.193558][ T1529] dev_vprintk_emit+0x5ef/0x6d0 [ 97.198420][ T1529] dev_printk_emit+0x1dd/0x21f [ 97.203192][ T1529] __dev_printk+0x3be/0x440 [ 97.207706][ T1529] _dev_info+0x1ea/0x22f [ 97.211955][ T1529] r871xu_drv_init+0x1929/0x30a0 [ 97.216924][ T1529] usb_probe_interface+0xf19/0x1600 [ 97.222141][ T1529] really_probe+0x67d/0x1510 [ 97.226769][ T1529] __driver_probe_device+0x3e9/0x530 [ 97.232082][ T1529] __device_attach_driver+0x79f/0x1120 [ 97.237563][ T1529] bus_for_each_drv+0x2d6/0x3f0 [ 97.242431][ T1529] __device_attach+0x593/0x8e0 [ 97.247227][ T1529] device_initial_probe+0x4a/0x60 [ 97.252284][ T1529] bus_probe_device+0x17b/0x3e0 [ 97.257171][ T1529] device_add+0x1d3e/0x2400 [ 97.261702][ T1529] usb_set_configuration+0x37e9/0x3ed0 [ 97.267189][ T1529] usb_generic_driver_probe+0x13c/0x300 [ 97.272773][ T1529] usb_probe_device+0x309/0x570 [ 97.277660][ T1529] really_probe+0x67d/0x1510 [ 97.282274][ T1529] __driver_probe_device+0x3e9/0x530 [ 97.287606][ T1529] __device_attach_driver+0x79f/0x1120 [ 97.293114][ T1529] bus_for_each_drv+0x2d6/0x3f0 [ 97.297983][ T1529] __device_attach+0x593/0x8e0 [ 97.302791][ T1529] device_initial_probe+0x4a/0x60 [ 97.307853][ T1529] bus_probe_device+0x17b/0x3e0 [ 97.312717][ T1529] device_add+0x1d3e/0x2400 [ 97.317231][ T1529] usb_new_device+0x1b8e/0x2950 [ 97.322104][ T1529] hub_event+0x5ad2/0x8910 [ 97.326541][ T1529] process_one_work+0xdb9/0x1820 [ 97.331507][ T1529] worker_thread+0x10bc/0x21f0 [ 97.336298][ T1529] kthread+0x721/0x850 [ 97.340394][ T1529] ret_from_fork+0x1f/0x30 [ 97.344834][ T1529] [ 97.347164][ T1529] Local variable data created at: [ 97.352185][ T1529] usb_read8+0x5d/0x130 [ 97.356366][ T1529] r8712_read8+0xa5/0xd0 [ 97.360663][ T1529] [ 97.363005][ T1529] CPU: 1 PID: 1529 Comm: kworker/1:2 Not tainted 5.16.0-rc5-syzkaller #0 [ 97.371452][ T1529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.381617][ T1529] Workqueue: usb_hub_wq hub_event [ 97.386683][ T1529] ===================================================== [ 97.393610][ T1529] Disabling lock debugging due to kernel taint [ 97.399882][ T1529] Kernel panic - not syncing: kmsan.panic set ... [ 97.406295][ T1529] CPU: 1 PID: 1529 Comm: kworker/1:2 Tainted: G B 5.16.0-rc5-syzkaller #0 [ 97.416118][ T1529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.426185][ T1529] Workqueue: usb_hub_wq hub_event [ 97.431248][ T1529] Call Trace: [ 97.434531][ T1529] [ 97.437471][ T1529] dump_stack_lvl+0x1ff/0x28e [ 97.442170][ T1529] dump_stack+0x25/0x28 [ 97.446346][ T1529] panic+0x487/0xe1f [ 97.450297][ T1529] ? add_taint+0x181/0x210 [ 97.454730][ T1529] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 97.460583][ T1529] kmsan_report+0x2e6/0x2f0 [ 97.465127][ T1529] ? __msan_warning+0xb8/0x130 [ 97.469919][ T1529] ? string+0x4ec/0x6f0 [ 97.474108][ T1529] ? vsnprintf+0x2222/0x3650 [ 97.478718][ T1529] ? pointer+0x1844/0x2060 [ 97.483154][ T1529] ? vsnprintf+0x1a9b/0x3650 [ 97.487764][ T1529] ? vprintk_store+0x537/0x2150 [ 97.492642][ T1529] ? vprintk_emit+0x25c/0x950 [ 97.497353][ T1529] ? dev_vprintk_emit+0x5ef/0x6d0 [ 97.502488][ T1529] ? dev_printk_emit+0x1dd/0x21f [ 97.507493][ T1529] ? __dev_printk+0x3be/0x440 [ 97.512301][ T1529] ? _dev_info+0x1ea/0x22f [ 97.516754][ T1529] ? r871xu_drv_init+0x1929/0x30a0 [ 97.521896][ T1529] ? usb_probe_interface+0xf19/0x1600 [ 97.527294][ T1529] ? really_probe+0x67d/0x1510 [ 97.532089][ T1529] ? __driver_probe_device+0x3e9/0x530 [ 97.537580][ T1529] ? __device_attach_driver+0x79f/0x1120 [ 97.543266][ T1529] ? bus_for_each_drv+0x2d6/0x3f0 [ 97.548319][ T1529] ? __device_attach+0x593/0x8e0 [ 97.553310][ T1529] ? device_initial_probe+0x4a/0x60 [ 97.558534][ T1529] ? bus_probe_device+0x17b/0x3e0 [ 97.563585][ T1529] ? device_add+0x1d3e/0x2400 [ 97.568309][ T1529] ? usb_set_configuration+0x37e9/0x3ed0 [ 97.573982][ T1529] ? usb_generic_driver_probe+0x13c/0x300 [ 97.579741][ T1529] ? usb_probe_device+0x309/0x570 [ 97.584796][ T1529] ? really_probe+0x67d/0x1510 [ 97.589601][ T1529] ? __driver_probe_device+0x3e9/0x530 [ 97.595134][ T1529] ? __device_attach_driver+0x79f/0x1120 [ 97.600796][ T1529] ? bus_for_each_drv+0x2d6/0x3f0 [ 97.605848][ T1529] ? __device_attach+0x593/0x8e0 [ 97.610819][ T1529] ? device_initial_probe+0x4a/0x60 [ 97.616042][ T1529] ? bus_probe_device+0x17b/0x3e0 [ 97.621094][ T1529] ? device_add+0x1d3e/0x2400 [ 97.626021][ T1529] ? usb_new_device+0x1b8e/0x2950 [ 97.631121][ T1529] ? hub_event+0x5ad2/0x8910 [ 97.635759][ T1529] ? process_one_work+0xdb9/0x1820 [ 97.641085][ T1529] ? worker_thread+0x10bc/0x21f0 [ 97.646150][ T1529] ? kthread+0x721/0x850 [ 97.650435][ T1529] ? ret_from_fork+0x1f/0x30 [ 97.655055][ T1529] ? kmsan_get_metadata+0x33/0x220 [ 97.660195][ T1529] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 97.666484][ T1529] ? kmsan_get_metadata+0x33/0x220 [ 97.671625][ T1529] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.677462][ T1529] __msan_warning+0xb8/0x130 [ 97.682077][ T1529] string+0x4ec/0x6f0 [ 97.686112][ T1529] vsnprintf+0x2222/0x3650 [ 97.690581][ T1529] pointer+0x1844/0x2060 [ 97.694871][ T1529] ? kmsan_get_metadata+0x33/0x220 [ 97.700038][ T1529] vsnprintf+0x1a9b/0x3650 [ 97.704506][ T1529] vprintk_store+0x537/0x2150 [ 97.709216][ T1529] ? vsnprintf+0x355b/0x3650 [ 97.713850][ T1529] ? snprintf+0x24a/0x290 [ 97.718208][ T1529] vprintk_emit+0x25c/0x950 [ 97.722748][ T1529] dev_vprintk_emit+0x5ef/0x6d0 [ 97.727633][ T1529] dev_printk_emit+0x1dd/0x21f [ 97.732432][ T1529] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 97.738281][ T1529] __dev_printk+0x3be/0x440 [ 97.742812][ T1529] _dev_info+0x1ea/0x22f [ 97.747088][ T1529] ? usb_read8+0xe7/0x130 [ 97.751465][ T1529] ? r871xu_drv_init+0x185e/0x30a0 [ 97.756647][ T1529] ? r8712_read8+0xa5/0xd0 [ 97.761099][ T1529] r871xu_drv_init+0x1929/0x30a0 [ 97.766081][ T1529] ? __pm_runtime_set_status+0x1ac6/0x1e20 [ 97.771925][ T1529] ? kmsan_get_metadata+0x33/0x220 [ 97.777068][ T1529] ? r871x_dev_unload+0x310/0x310 [ 97.782125][ T1529] ? r871x_dev_unload+0x310/0x310 [ 97.787183][ T1529] usb_probe_interface+0xf19/0x1600 [ 97.792422][ T1529] ? kmsan_get_metadata+0x33/0x220 [ 97.797604][ T1529] ? usb_register_driver+0x900/0x900 [ 97.802943][ T1529] really_probe+0x67d/0x1510 [ 97.807597][ T1529] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 97.813736][ T1529] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.819574][ T1529] __driver_probe_device+0x3e9/0x530 [ 97.824892][ T1529] __device_attach_driver+0x79f/0x1120 [ 97.830392][ T1529] bus_for_each_drv+0x2d6/0x3f0 [ 97.835269][ T1529] ? deferred_probe_work_func+0x4c0/0x4c0 [ 97.841038][ T1529] __device_attach+0x593/0x8e0 [ 97.845834][ T1529] ? cgroup_bpf_attach+0xe1/0x2640 [ 97.850971][ T1529] device_initial_probe+0x4a/0x60 [ 97.856036][ T1529] bus_probe_device+0x17b/0x3e0 [ 97.860919][ T1529] device_add+0x1d3e/0x2400 [ 97.865452][ T1529] usb_set_configuration+0x37e9/0x3ed0 [ 97.871115][ T1529] ? usb_set_configuration+0xb81/0x3ed0 [ 97.876700][ T1529] ? usb_choose_configuration+0xcbb/0xf90 [ 97.882469][ T1529] usb_generic_driver_probe+0x13c/0x300 [ 97.888049][ T1529] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.893918][ T1529] ? usb_choose_configuration+0xf90/0xf90 [ 97.899681][ T1529] usb_probe_device+0x309/0x570 [ 97.904577][ T1529] ? kmsan_get_metadata+0x33/0x220 [ 97.909740][ T1529] ? usb_register_device_driver+0x580/0x580 [ 97.915662][ T1529] really_probe+0x67d/0x1510 [ 97.920283][ T1529] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 97.926450][ T1529] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.932319][ T1529] __driver_probe_device+0x3e9/0x530 [ 97.937663][ T1529] __device_attach_driver+0x79f/0x1120 [ 97.943159][ T1529] bus_for_each_drv+0x2d6/0x3f0 [ 97.948038][ T1529] ? deferred_probe_work_func+0x4c0/0x4c0 [ 97.953795][ T1529] __device_attach+0x593/0x8e0 [ 97.958592][ T1529] ? cgroup_bpf_attach+0xe1/0x2640 [ 97.963736][ T1529] device_initial_probe+0x4a/0x60 [ 97.968807][ T1529] bus_probe_device+0x17b/0x3e0 [ 97.973689][ T1529] device_add+0x1d3e/0x2400 [ 97.978224][ T1529] usb_new_device+0x1b8e/0x2950 [ 97.983128][ T1529] hub_event+0x5ad2/0x8910 [ 97.987608][ T1529] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.993452][ T1529] ? led_work+0x7b0/0x7b0 [ 97.997829][ T1529] ? led_work+0x7b0/0x7b0 [ 98.002225][ T1529] process_one_work+0xdb9/0x1820 [ 98.007241][ T1529] worker_thread+0x10bc/0x21f0 [ 98.012071][ T1529] kthread+0x721/0x850 [ 98.016166][ T1529] ? worker_clr_flags+0x370/0x370 [ 98.021234][ T1529] ? kthread_blkcg+0x120/0x120 [ 98.026031][ T1529] ret_from_fork+0x1f/0x30 [ 98.030493][ T1529] [ 98.033758][ T1529] Kernel Offset: disabled [ 98.038087][ T1529] Rebooting in 86400 seconds..