forked to background, child pid 3048 no interfaces have a carrier [ 65.197040][ T3049] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.229100][ T3049] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.8' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 92.311993][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 92.562001][ T7] usb 1-1: Using ep0 maxpacket: 32 [ 92.722296][ T7] usb 1-1: unable to get BOS descriptor or descriptor too short [ 92.802178][ T7] usb 1-1: config 251 has an invalid interface number: 228 but max is 3 [ 92.810734][ T7] usb 1-1: config 251 has an invalid descriptor of length 0, skipping remainder of the config [ 92.821313][ T7] usb 1-1: config 251 has 1 interface, different from the descriptor's value: 4 [ 92.830690][ T7] usb 1-1: config 251 has no interface number 0 [ 92.837174][ T7] usb 1-1: config 251 interface 228 altsetting 8 has 0 endpoint descriptors, different from the interface descriptor's value: 12 [ 92.852396][ T7] usb 1-1: config 251 interface 228 has no altsetting 0 [ 93.092155][ T7] usb 1-1: string descriptor 0 read error: -22 [ 93.098607][ T7] usb 1-1: New USB device found, idVendor=13d3, idProduct=3340, bcdDevice=4f.b7 [ 93.107948][ T7] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 93.168467][ T7] r8712u: register rtl8712_netdev_ops to netdev_ops [ 93.175299][ T7] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints executing program [ 93.402267][ T7] ===================================================== [ 93.409318][ T7] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 93.415686][ T7] string+0x4ec/0x6f0 [ 93.419685][ T7] vsnprintf+0x2222/0x3650 [ 93.424145][ T7] pointer+0x1844/0x2060 [ 93.428399][ T7] vsnprintf+0x1a9b/0x3650 [ 93.432852][ T7] vprintk_store+0x537/0x2150 [ 93.437567][ T7] vprintk_emit+0x25c/0x950 [ 93.442119][ T7] dev_vprintk_emit+0x5ef/0x6d0 [ 93.447096][ T7] dev_printk_emit+0x1dd/0x21f [ 93.451905][ T7] __dev_printk+0x3be/0x440 [ 93.456993][ T7] _dev_info+0x1ea/0x22f [ 93.461294][ T7] r871xu_drv_init+0x1929/0x3070 [ 93.466332][ T7] usb_probe_interface+0xf19/0x1600 [ 93.471567][ T7] really_probe+0x653/0x14b0 [ 93.476786][ T7] __driver_probe_device+0x3e9/0x530 [ 93.482109][ T7] __device_attach_driver+0x79f/0x1120 [ 93.487593][ T7] bus_for_each_drv+0x2d6/0x3f0 [ 93.492462][ T7] __device_attach+0x593/0x8e0 [ 93.497258][ T7] device_initial_probe+0x4a/0x60 [ 93.502299][ T7] bus_probe_device+0x17b/0x3e0 [ 93.507297][ T7] device_add+0x1fff/0x26e0 [ 93.511940][ T7] usb_set_configuration+0x37e9/0x3ed0 [ 93.517472][ T7] usb_generic_driver_probe+0x13c/0x300 [ 93.523189][ T7] usb_probe_device+0x309/0x570 [ 93.528100][ T7] really_probe+0x653/0x14b0 [ 93.532719][ T7] __driver_probe_device+0x3e9/0x530 [ 93.538054][ T7] __device_attach_driver+0x79f/0x1120 [ 93.543534][ T7] bus_for_each_drv+0x2d6/0x3f0 [ 93.548423][ T7] __device_attach+0x593/0x8e0 [ 93.553218][ T7] device_initial_probe+0x4a/0x60 [ 93.558258][ T7] bus_probe_device+0x17b/0x3e0 [ 93.563127][ T7] device_add+0x1fff/0x26e0 [ 93.567763][ T7] usb_new_device+0x1b8e/0x2950 [ 93.572880][ T7] hub_event+0x58e3/0x89e0 [ 93.577322][ T7] process_one_work+0xdb6/0x1820 [ 93.582281][ T7] worker_thread+0x10b3/0x21e0 [ 93.587064][ T7] kthread+0x3c7/0x500 [ 93.591166][ T7] ret_from_fork+0x1f/0x30 [ 93.596041][ T7] [ 93.598374][ T7] Local variable data created at: [ 93.603397][ T7] usb_read8+0x5d/0x130 [ 93.607566][ T7] r8712_read8+0xa5/0xd0 [ 93.611923][ T7] [ 93.614266][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.17.0-syzkaller #0 [ 93.622094][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.632157][ T7] Workqueue: usb_hub_wq hub_event [ 93.637204][ T7] ===================================================== [ 93.644126][ T7] Disabling lock debugging due to kernel taint [ 93.650269][ T7] Kernel panic - not syncing: kmsan.panic set ... [ 93.656676][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G B 5.17.0-syzkaller #0 [ 93.665882][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.675944][ T7] Workqueue: usb_hub_wq hub_event [ 93.680990][ T7] Call Trace: [ 93.684268][ T7] [ 93.687199][ T7] dump_stack_lvl+0x1ff/0x28e [ 93.691936][ T7] dump_stack+0x25/0x28 [ 93.696150][ T7] panic+0x487/0xe1f [ 93.700070][ T7] ? add_taint+0x181/0x210 [ 93.704515][ T7] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 93.710348][ T7] kmsan_report+0x2e6/0x2f0 [ 93.714886][ T7] ? __msan_warning+0xb8/0x130 [ 93.719683][ T7] ? string+0x4ec/0x6f0 [ 93.723862][ T7] ? vsnprintf+0x2222/0x3650 [ 93.728463][ T7] ? pointer+0x1844/0x2060 [ 93.732889][ T7] ? vsnprintf+0x1a9b/0x3650 [ 93.737491][ T7] ? vprintk_store+0x537/0x2150 [ 93.742379][ T7] ? vprintk_emit+0x25c/0x950 [ 93.747102][ T7] ? dev_vprintk_emit+0x5ef/0x6d0 [ 93.752191][ T7] ? dev_printk_emit+0x1dd/0x21f [ 93.757179][ T7] ? __dev_printk+0x3be/0x440 [ 93.761871][ T7] ? _dev_info+0x1ea/0x22f [ 93.766323][ T7] ? r871xu_drv_init+0x1929/0x3070 [ 93.771465][ T7] ? usb_probe_interface+0xf19/0x1600 [ 93.776872][ T7] ? really_probe+0x653/0x14b0 [ 93.781657][ T7] ? __driver_probe_device+0x3e9/0x530 [ 93.787143][ T7] ? __device_attach_driver+0x79f/0x1120 [ 93.792834][ T7] ? bus_for_each_drv+0x2d6/0x3f0 [ 93.797900][ T7] ? __device_attach+0x593/0x8e0 [ 93.802880][ T7] ? device_initial_probe+0x4a/0x60 [ 93.808098][ T7] ? bus_probe_device+0x17b/0x3e0 [ 93.813138][ T7] ? device_add+0x1fff/0x26e0 [ 93.817861][ T7] ? usb_set_configuration+0x37e9/0x3ed0 [ 93.823545][ T7] ? usb_generic_driver_probe+0x13c/0x300 [ 93.829286][ T7] ? usb_probe_device+0x309/0x570 [ 93.834336][ T7] ? really_probe+0x653/0x14b0 [ 93.839139][ T7] ? __driver_probe_device+0x3e9/0x530 [ 93.844619][ T7] ? __device_attach_driver+0x79f/0x1120 [ 93.850273][ T7] ? bus_for_each_drv+0x2d6/0x3f0 [ 93.855327][ T7] ? __device_attach+0x593/0x8e0 [ 93.860566][ T7] ? device_initial_probe+0x4a/0x60 [ 93.865806][ T7] ? bus_probe_device+0x17b/0x3e0 [ 93.870851][ T7] ? device_add+0x1fff/0x26e0 [ 93.875587][ T7] ? usb_new_device+0x1b8e/0x2950 [ 93.880654][ T7] ? hub_event+0x58e3/0x89e0 [ 93.885260][ T7] ? process_one_work+0xdb6/0x1820 [ 93.890387][ T7] ? worker_thread+0x10b3/0x21e0 [ 93.895340][ T7] ? kthread+0x3c7/0x500 [ 93.899608][ T7] ? ret_from_fork+0x1f/0x30 [ 93.904216][ T7] ? stack_trace_save+0x43/0x60 [ 93.909092][ T7] ? __stack_depot_save+0x21/0x4d0 [ 93.914230][ T7] ? kmsan_get_metadata+0x33/0x220 [ 93.919396][ T7] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 93.925667][ T7] ? kmsan_get_metadata+0x33/0x220 [ 93.930813][ T7] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 93.936661][ T7] __msan_warning+0xb8/0x130 [ 93.941300][ T7] string+0x4ec/0x6f0 [ 93.945321][ T7] vsnprintf+0x2222/0x3650 [ 93.949766][ T7] pointer+0x1844/0x2060 [ 93.954027][ T7] ? kmsan_get_metadata+0x33/0x220 [ 93.959174][ T7] vsnprintf+0x1a9b/0x3650 [ 93.963657][ T7] vprintk_store+0x537/0x2150 [ 93.968385][ T7] ? vsnprintf+0x355b/0x3650 [ 93.973018][ T7] ? snprintf+0x24a/0x290 [ 93.977370][ T7] vprintk_emit+0x25c/0x950 [ 93.981916][ T7] dev_vprintk_emit+0x5ef/0x6d0 [ 93.986822][ T7] dev_printk_emit+0x1dd/0x21f [ 93.991723][ T7] __dev_printk+0x3be/0x440 [ 93.996262][ T7] _dev_info+0x1ea/0x22f [ 94.000537][ T7] ? usb_read8+0xe7/0x130 [ 94.004888][ T7] ? r871xu_drv_init+0x185e/0x3070 [ 94.010026][ T7] ? r8712_read8+0xa5/0xd0 [ 94.014464][ T7] r871xu_drv_init+0x1929/0x3070 [ 94.019427][ T7] ? __pm_runtime_set_status+0x1aed/0x1e40 [ 94.025277][ T7] ? kmsan_get_metadata+0x33/0x220 [ 94.030434][ T7] ? r871x_dev_unload+0x310/0x310 [ 94.035488][ T7] ? r871x_dev_unload+0x310/0x310 [ 94.040586][ T7] usb_probe_interface+0xf19/0x1600 [ 94.045828][ T7] ? kmsan_get_metadata+0x33/0x220 [ 94.050973][ T7] ? usb_register_driver+0x900/0x900 [ 94.056281][ T7] really_probe+0x653/0x14b0 [ 94.060898][ T7] __driver_probe_device+0x3e9/0x530 [ 94.066213][ T7] __device_attach_driver+0x79f/0x1120 [ 94.071702][ T7] bus_for_each_drv+0x2d6/0x3f0 [ 94.076583][ T7] ? deferred_probe_work_func+0x4c0/0x4c0 [ 94.082358][ T7] __device_attach+0x593/0x8e0 [ 94.087173][ T7] ? btf_decl_tag_check_meta+0x6c1/0x770 [ 94.092844][ T7] device_initial_probe+0x4a/0x60 [ 94.097926][ T7] bus_probe_device+0x17b/0x3e0 [ 94.102825][ T7] device_add+0x1fff/0x26e0 [ 94.107371][ T7] usb_set_configuration+0x37e9/0x3ed0 [ 94.112950][ T7] ? usb_set_configuration+0xb61/0x3ed0 [ 94.118577][ T7] ? usb_choose_configuration+0xcbb/0xf90 [ 94.124344][ T7] usb_generic_driver_probe+0x13c/0x300 [ 94.129925][ T7] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 94.135787][ T7] ? usb_choose_configuration+0xf90/0xf90 [ 94.141663][ T7] usb_probe_device+0x309/0x570 [ 94.146567][ T7] ? kmsan_get_metadata+0x33/0x220 [ 94.151730][ T7] ? usb_register_device_driver+0x580/0x580 [ 94.157689][ T7] really_probe+0x653/0x14b0 [ 94.162331][ T7] __driver_probe_device+0x3e9/0x530 [ 94.167661][ T7] __device_attach_driver+0x79f/0x1120 [ 94.173153][ T7] bus_for_each_drv+0x2d6/0x3f0 [ 94.178026][ T7] ? deferred_probe_work_func+0x4c0/0x4c0 [ 94.183802][ T7] __device_attach+0x593/0x8e0 [ 94.188612][ T7] ? btf_decl_tag_check_meta+0x6c1/0x770 [ 94.194267][ T7] device_initial_probe+0x4a/0x60 [ 94.199328][ T7] bus_probe_device+0x17b/0x3e0 [ 94.204220][ T7] device_add+0x1fff/0x26e0 [ 94.208760][ T7] usb_new_device+0x1b8e/0x2950 [ 94.213641][ T7] hub_event+0x58e3/0x89e0 [ 94.218116][ T7] ? kmsan_get_metadata+0x33/0x220 [ 94.223257][ T7] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 94.229111][ T7] ? led_work+0x7b0/0x7b0 [ 94.233455][ T7] process_one_work+0xdb6/0x1820 [ 94.238425][ T7] worker_thread+0x10b3/0x21e0 [ 94.243270][ T7] kthread+0x3c7/0x500 [ 94.247372][ T7] ? worker_clr_flags+0x370/0x370 [ 94.252448][ T7] ? kthread_blkcg+0x120/0x120 [ 94.257242][ T7] ret_from_fork+0x1f/0x30 [ 94.261690][ T7] [ 94.264792][ T7] Kernel Offset: disabled [ 94.269163][ T7] Rebooting in 86400 seconds..