forked to background, child pid 3056 no interfaces have a carrier [ 67.209008][ T3057] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.261675][ T3057] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.51' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 94.211965][ T116] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 94.572367][ T116] usb 1-1: config 0 has an invalid interface number: 116 but max is 0 [ 94.580637][ T116] usb 1-1: config 0 has no interface number 0 [ 94.586911][ T116] usb 1-1: New USB device found, idVendor=0bda, idProduct=8174, bcdDevice=d1.a8 [ 94.596201][ T116] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 94.607468][ T116] usb 1-1: config 0 descriptor?? executing program [ 94.892376][ T116] usb 1-1: string descriptor 0 read error: -71 [ 94.905349][ T116] r8712u: register rtl8712_netdev_ops to netdev_ops [ 94.912760][ T116] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 94.962186][ T116] ===================================================== [ 94.969313][ T116] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 94.975776][ T116] string+0x4ec/0x6f0 [ 94.979773][ T116] vsnprintf+0x2222/0x3650 [ 94.984343][ T116] pointer+0x1844/0x2060 [ 94.988630][ T116] vsnprintf+0x1a9b/0x3650 [ 94.993065][ T116] vprintk_store+0x537/0x2150 [ 94.997761][ T116] vprintk_emit+0x25c/0x950 [ 95.002281][ T116] dev_vprintk_emit+0x5ef/0x6d0 [ 95.007150][ T116] dev_printk_emit+0x1dd/0x21f [ 95.011930][ T116] __dev_printk+0x3be/0x440 [ 95.016452][ T116] _dev_info+0x1ea/0x22f [ 95.020707][ T116] r871xu_drv_init+0x1929/0x30a0 [ 95.025660][ T116] usb_probe_interface+0xf19/0x1600 [ 95.030906][ T116] really_probe+0x67d/0x1510 [ 95.035512][ T116] __driver_probe_device+0x3e9/0x530 [ 95.040809][ T116] __device_attach_driver+0x79f/0x1120 [ 95.046280][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 95.051155][ T116] __device_attach+0x593/0x8e0 [ 95.055927][ T116] device_initial_probe+0x4a/0x60 [ 95.060961][ T116] bus_probe_device+0x17b/0x3e0 [ 95.065831][ T116] device_add+0x1d3e/0x2400 [ 95.070347][ T116] usb_set_configuration+0x37e9/0x3ed0 [ 95.075830][ T116] usb_generic_driver_probe+0x13c/0x300 [ 95.081406][ T116] usb_probe_device+0x309/0x570 [ 95.086385][ T116] really_probe+0x67d/0x1510 [ 95.090987][ T116] __driver_probe_device+0x3e9/0x530 [ 95.096283][ T116] __device_attach_driver+0x79f/0x1120 [ 95.101779][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 95.106681][ T116] __device_attach+0x593/0x8e0 [ 95.111483][ T116] device_initial_probe+0x4a/0x60 [ 95.116523][ T116] bus_probe_device+0x17b/0x3e0 [ 95.121401][ T116] device_add+0x1d3e/0x2400 [ 95.125918][ T116] usb_new_device+0x1b8e/0x2950 [ 95.130783][ T116] hub_event+0x5ad2/0x8910 [ 95.135211][ T116] process_one_work+0xdb9/0x1820 [ 95.140171][ T116] worker_thread+0x10bc/0x21f0 [ 95.144955][ T116] kthread+0x721/0x850 [ 95.149035][ T116] ret_from_fork+0x1f/0x30 [ 95.153465][ T116] [ 95.155780][ T116] Local variable data created at: [ 95.160791][ T116] usb_read8+0x5d/0x130 [ 95.164955][ T116] r8712_read8+0xa5/0xd0 [ 95.169212][ T116] [ 95.171531][ T116] CPU: 0 PID: 116 Comm: kworker/0:2 Not tainted 5.16.0-rc5-syzkaller #0 [ 95.179870][ T116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.189930][ T116] Workqueue: usb_hub_wq hub_event [ 95.194975][ T116] ===================================================== [ 95.201895][ T116] Disabling lock debugging due to kernel taint [ 95.208034][ T116] Kernel panic - not syncing: kmsan.panic set ... [ 95.214438][ T116] CPU: 0 PID: 116 Comm: kworker/0:2 Tainted: G B 5.16.0-rc5-syzkaller #0 [ 95.224169][ T116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.234229][ T116] Workqueue: usb_hub_wq hub_event [ 95.239274][ T116] Call Trace: [ 95.242552][ T116] [ 95.245480][ T116] dump_stack_lvl+0x1ff/0x28e [ 95.250181][ T116] dump_stack+0x25/0x28 [ 95.254350][ T116] panic+0x487/0xe1f [ 95.258274][ T116] ? add_taint+0x181/0x210 [ 95.262699][ T116] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 95.268522][ T116] kmsan_report+0x2e6/0x2f0 [ 95.273064][ T116] ? __msan_warning+0xb8/0x130 [ 95.277841][ T116] ? string+0x4ec/0x6f0 [ 95.282010][ T116] ? vsnprintf+0x2222/0x3650 [ 95.286613][ T116] ? pointer+0x1844/0x2060 [ 95.291040][ T116] ? vsnprintf+0x1a9b/0x3650 [ 95.295646][ T116] ? vprintk_store+0x537/0x2150 [ 95.300516][ T116] ? vprintk_emit+0x25c/0x950 [ 95.305215][ T116] ? dev_vprintk_emit+0x5ef/0x6d0 [ 95.310259][ T116] ? dev_printk_emit+0x1dd/0x21f [ 95.315213][ T116] ? __dev_printk+0x3be/0x440 [ 95.319944][ T116] ? _dev_info+0x1ea/0x22f [ 95.324372][ T116] ? r871xu_drv_init+0x1929/0x30a0 [ 95.329499][ T116] ? usb_probe_interface+0xf19/0x1600 [ 95.334882][ T116] ? really_probe+0x67d/0x1510 [ 95.339657][ T116] ? __driver_probe_device+0x3e9/0x530 [ 95.345129][ T116] ? __device_attach_driver+0x79f/0x1120 [ 95.351295][ T116] ? bus_for_each_drv+0x2d6/0x3f0 [ 95.356344][ T116] ? __device_attach+0x593/0x8e0 [ 95.361288][ T116] ? device_initial_probe+0x4a/0x60 [ 95.366506][ T116] ? bus_probe_device+0x17b/0x3e0 [ 95.371550][ T116] ? device_add+0x1d3e/0x2400 [ 95.376253][ T116] ? usb_set_configuration+0x37e9/0x3ed0 [ 95.381912][ T116] ? usb_generic_driver_probe+0x13c/0x300 [ 95.387653][ T116] ? usb_probe_device+0x309/0x570 [ 95.392717][ T116] ? really_probe+0x67d/0x1510 [ 95.397491][ T116] ? __driver_probe_device+0x3e9/0x530 [ 95.402989][ T116] ? __device_attach_driver+0x79f/0x1120 [ 95.408642][ T116] ? bus_for_each_drv+0x2d6/0x3f0 [ 95.413687][ T116] ? __device_attach+0x593/0x8e0 [ 95.418633][ T116] ? device_initial_probe+0x4a/0x60 [ 95.423931][ T116] ? bus_probe_device+0x17b/0x3e0 [ 95.429064][ T116] ? device_add+0x1d3e/0x2400 [ 95.433756][ T116] ? usb_new_device+0x1b8e/0x2950 [ 95.438793][ T116] ? hub_event+0x5ad2/0x8910 [ 95.443396][ T116] ? process_one_work+0xdb9/0x1820 [ 95.448828][ T116] ? worker_thread+0x10bc/0x21f0 [ 95.453807][ T116] ? kthread+0x721/0x850 [ 95.458343][ T116] ? ret_from_fork+0x1f/0x30 [ 95.463053][ T116] ? kmsan_get_metadata+0x33/0x220 [ 95.468213][ T116] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 95.474505][ T116] ? kmsan_get_metadata+0x33/0x220 [ 95.479671][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.485512][ T116] __msan_warning+0xb8/0x130 [ 95.490134][ T116] string+0x4ec/0x6f0 [ 95.494151][ T116] vsnprintf+0x2222/0x3650 [ 95.498635][ T116] pointer+0x1844/0x2060 [ 95.502906][ T116] ? kmsan_get_metadata+0x33/0x220 [ 95.508047][ T116] vsnprintf+0x1a9b/0x3650 [ 95.512498][ T116] vprintk_store+0x537/0x2150 [ 95.517190][ T116] ? vsnprintf+0x355b/0x3650 [ 95.521813][ T116] ? snprintf+0x24a/0x290 [ 95.526167][ T116] vprintk_emit+0x25c/0x950 [ 95.530703][ T116] dev_vprintk_emit+0x5ef/0x6d0 [ 95.535587][ T116] dev_printk_emit+0x1dd/0x21f [ 95.540468][ T116] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 95.546298][ T116] __dev_printk+0x3be/0x440 [ 95.550839][ T116] _dev_info+0x1ea/0x22f [ 95.555191][ T116] ? usb_read8+0xe7/0x130 [ 95.559557][ T116] ? r871xu_drv_init+0x185e/0x30a0 [ 95.564693][ T116] ? r8712_read8+0xa5/0xd0 [ 95.569137][ T116] r871xu_drv_init+0x1929/0x30a0 [ 95.574107][ T116] ? __pm_runtime_set_status+0x1ac6/0x1e20 [ 95.580145][ T116] ? kmsan_get_metadata+0x33/0x220 [ 95.585278][ T116] ? r871x_dev_unload+0x310/0x310 [ 95.590328][ T116] ? r871x_dev_unload+0x310/0x310 [ 95.595540][ T116] usb_probe_interface+0xf19/0x1600 [ 95.600761][ T116] ? kmsan_get_metadata+0x33/0x220 [ 95.605904][ T116] ? usb_register_driver+0x900/0x900 [ 95.611202][ T116] really_probe+0x67d/0x1510 [ 95.615810][ T116] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 95.621919][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.627763][ T116] __driver_probe_device+0x3e9/0x530 [ 95.633085][ T116] __device_attach_driver+0x79f/0x1120 [ 95.638565][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 95.643442][ T116] ? deferred_probe_work_func+0x4c0/0x4c0 [ 95.649186][ T116] __device_attach+0x593/0x8e0 [ 95.653962][ T116] ? cgroup_bpf_attach+0xe1/0x2640 [ 95.659094][ T116] device_initial_probe+0x4a/0x60 [ 95.664219][ T116] bus_probe_device+0x17b/0x3e0 [ 95.669105][ T116] device_add+0x1d3e/0x2400 [ 95.673725][ T116] usb_set_configuration+0x37e9/0x3ed0 [ 95.679223][ T116] ? usb_set_configuration+0xb11/0x3ed0 [ 95.684817][ T116] ? usb_choose_configuration+0xcbb/0xf90 [ 95.690589][ T116] usb_generic_driver_probe+0x13c/0x300 [ 95.696399][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.702234][ T116] ? usb_choose_configuration+0xf90/0xf90 [ 95.707981][ T116] usb_probe_device+0x309/0x570 [ 95.712856][ T116] ? kmsan_get_metadata+0x33/0x220 [ 95.718077][ T116] ? usb_register_device_driver+0x580/0x580 [ 95.724000][ T116] really_probe+0x67d/0x1510 [ 95.728634][ T116] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 95.734735][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.740567][ T116] __driver_probe_device+0x3e9/0x530 [ 95.745879][ T116] __device_attach_driver+0x79f/0x1120 [ 95.751363][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 95.756237][ T116] ? deferred_probe_work_func+0x4c0/0x4c0 [ 95.761980][ T116] __device_attach+0x593/0x8e0 [ 95.766758][ T116] ? cgroup_bpf_attach+0xe1/0x2640 [ 95.771889][ T116] device_initial_probe+0x4a/0x60 [ 95.776927][ T116] bus_probe_device+0x17b/0x3e0 [ 95.781830][ T116] device_add+0x1d3e/0x2400 [ 95.786368][ T116] usb_new_device+0x1b8e/0x2950 [ 95.791253][ T116] hub_event+0x5ad2/0x8910 [ 95.795721][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.801988][ T116] ? led_work+0x7b0/0x7b0 [ 95.806438][ T116] ? led_work+0x7b0/0x7b0 [ 95.810782][ T116] process_one_work+0xdb9/0x1820 [ 95.815768][ T116] worker_thread+0x10bc/0x21f0 [ 95.820596][ T116] kthread+0x721/0x850 [ 95.824686][ T116] ? worker_clr_flags+0x370/0x370 [ 95.829827][ T116] ? kthread_blkcg+0x120/0x120 [ 95.834611][ T116] ret_from_fork+0x1f/0x30 [ 95.841406][ T116] [ 95.844716][ T116] Kernel Offset: disabled [ 95.849046][ T116] Rebooting in 86400 seconds..