forked to background, child pid 3047 no interfaces have a carrier [ 71.444184][ T3048] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.478242][ T3048] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.102' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 97.292043][ T3139] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 97.532054][ T3139] usb 1-1: Using ep0 maxpacket: 8 [ 97.672194][ T3139] usb 1-1: config 255 has an invalid interface number: 242 but max is 0 [ 97.681153][ T3139] usb 1-1: config 255 has no interface number 0 [ 97.842242][ T3139] usb 1-1: New USB device found, idVendor=13d3, idProduct=3309, bcdDevice=7b.e9 [ 97.851963][ T3139] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 97.860707][ T3139] usb 1-1: Product: syz [ 97.865158][ T3139] usb 1-1: Manufacturer: syz [ 97.869918][ T3139] usb 1-1: SerialNumber: syz [ 97.928709][ T3139] r8712u: register rtl8712_netdev_ops to netdev_ops [ 97.935518][ T3139] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints executing program [ 98.172152][ T3139] ===================================================== [ 98.179279][ T3139] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 98.185635][ T3139] string+0x4ec/0x6f0 [ 98.189665][ T3139] vsnprintf+0x2222/0x3650 [ 98.194113][ T3139] pointer+0x18e6/0x1f70 [ 98.198393][ T3139] vsnprintf+0x1a9b/0x3650 [ 98.202830][ T3139] vprintk_store+0x537/0x2150 [ 98.207549][ T3139] vprintk_emit+0x28b/0xab0 [ 98.212100][ T3139] dev_vprintk_emit+0x5ef/0x6d0 [ 98.217132][ T3139] dev_printk_emit+0x1dd/0x21f [ 98.221938][ T3139] __dev_printk+0x3be/0x440 [ 98.226493][ T3139] _dev_info+0x1ea/0x22f [ 98.230873][ T3139] r871xu_drv_init+0x1929/0x3070 [ 98.235883][ T3139] usb_probe_interface+0xf19/0x1600 [ 98.241437][ T3139] really_probe+0x6c7/0x1350 [ 98.246222][ T3139] __driver_probe_device+0x3e9/0x530 [ 98.251831][ T3139] __device_attach_driver+0x79f/0x1120 [ 98.257351][ T3139] bus_for_each_drv+0x2d6/0x3f0 [ 98.262327][ T3139] __device_attach+0x593/0x8e0 [ 98.267259][ T3139] device_initial_probe+0x4a/0x60 [ 98.272417][ T3139] bus_probe_device+0x17b/0x3e0 [ 98.277495][ T3139] device_add+0x1fff/0x26e0 [ 98.282642][ T3139] usb_set_configuration+0x37e9/0x3ed0 [ 98.289065][ T3139] usb_generic_driver_probe+0x13c/0x300 [ 98.294771][ T3139] usb_probe_device+0x309/0x570 [ 98.299668][ T3139] really_probe+0x6c7/0x1350 [ 98.304646][ T3139] __driver_probe_device+0x3e9/0x530 [ 98.310122][ T3139] __device_attach_driver+0x79f/0x1120 [ 98.315835][ T3139] bus_for_each_drv+0x2d6/0x3f0 [ 98.321288][ T3139] __device_attach+0x593/0x8e0 [ 98.326101][ T3139] device_initial_probe+0x4a/0x60 [ 98.331178][ T3139] bus_probe_device+0x17b/0x3e0 [ 98.336069][ T3139] device_add+0x1fff/0x26e0 [ 98.340922][ T3139] usb_new_device+0x1b91/0x2950 [ 98.346371][ T3139] hub_event+0x58e3/0x89e0 [ 98.350833][ T3139] process_one_work+0xdb6/0x1820 [ 98.356162][ T3139] worker_thread+0x10d0/0x2240 [ 98.361155][ T3139] kthread+0x3c7/0x500 [ 98.365361][ T3139] ret_from_fork+0x1f/0x30 [ 98.369816][ T3139] [ 98.372134][ T3139] Local variable data created at: [ 98.377339][ T3139] usb_read8+0x5d/0x130 [ 98.381605][ T3139] r8712_read8+0xa5/0xd0 [ 98.385885][ T3139] [ 98.388258][ T3139] CPU: 1 PID: 3139 Comm: kworker/1:3 Not tainted 5.18.0-rc3-syzkaller #0 [ 98.396970][ T3139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.407135][ T3139] Workqueue: usb_hub_wq hub_event [ 98.412201][ T3139] ===================================================== [ 98.419144][ T3139] Disabling lock debugging due to kernel taint [ 98.425582][ T3139] Kernel panic - not syncing: kmsan.panic set ... [ 98.432237][ T3139] CPU: 1 PID: 3139 Comm: kworker/1:3 Tainted: G B 5.18.0-rc3-syzkaller #0 [ 98.442368][ T3139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.452574][ T3139] Workqueue: usb_hub_wq hub_event [ 98.457665][ T3139] Call Trace: [ 98.461115][ T3139] [ 98.464060][ T3139] dump_stack_lvl+0x1ff/0x28e [ 98.468809][ T3139] dump_stack+0x25/0x28 [ 98.473347][ T3139] panic+0x4fe/0xc73 [ 98.477417][ T3139] ? add_taint+0x181/0x210 [ 98.482013][ T3139] ? console_unlock+0x1ca0/0x2130 [ 98.487283][ T3139] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 98.493241][ T3139] kmsan_report+0x2e6/0x2f0 [ 98.498041][ T3139] ? __msan_warning+0x94/0x110 [ 98.503036][ T3139] ? string+0x4ec/0x6f0 [ 98.507665][ T3139] ? vsnprintf+0x2222/0x3650 [ 98.512536][ T3139] ? pointer+0x18e6/0x1f70 [ 98.516982][ T3139] ? vsnprintf+0x1a9b/0x3650 [ 98.522217][ T3139] ? vprintk_store+0x537/0x2150 [ 98.527273][ T3139] ? vprintk_emit+0x28b/0xab0 [ 98.532102][ T3139] ? dev_vprintk_emit+0x5ef/0x6d0 [ 98.537277][ T3139] ? dev_printk_emit+0x1dd/0x21f [ 98.542418][ T3139] ? __dev_printk+0x3be/0x440 [ 98.547126][ T3139] ? _dev_info+0x1ea/0x22f [ 98.551674][ T3139] ? r871xu_drv_init+0x1929/0x3070 [ 98.556957][ T3139] ? usb_probe_interface+0xf19/0x1600 [ 98.562389][ T3139] ? really_probe+0x6c7/0x1350 [ 98.567336][ T3139] ? __driver_probe_device+0x3e9/0x530 [ 98.573006][ T3139] ? __device_attach_driver+0x79f/0x1120 [ 98.579004][ T3139] ? bus_for_each_drv+0x2d6/0x3f0 [ 98.584233][ T3139] ? __device_attach+0x593/0x8e0 [ 98.589310][ T3139] ? device_initial_probe+0x4a/0x60 [ 98.594579][ T3139] ? bus_probe_device+0x17b/0x3e0 [ 98.599642][ T3139] ? device_add+0x1fff/0x26e0 [ 98.604353][ T3139] ? usb_set_configuration+0x37e9/0x3ed0 [ 98.610046][ T3139] ? usb_generic_driver_probe+0x13c/0x300 [ 98.615928][ T3139] ? usb_probe_device+0x309/0x570 [ 98.621091][ T3139] ? really_probe+0x6c7/0x1350 [ 98.626173][ T3139] ? __driver_probe_device+0x3e9/0x530 [ 98.631683][ T3139] ? __device_attach_driver+0x79f/0x1120 [ 98.637370][ T3139] ? bus_for_each_drv+0x2d6/0x3f0 [ 98.642521][ T3139] ? __device_attach+0x593/0x8e0 [ 98.647500][ T3139] ? device_initial_probe+0x4a/0x60 [ 98.652748][ T3139] ? bus_probe_device+0x17b/0x3e0 [ 98.657804][ T3139] ? device_add+0x1fff/0x26e0 [ 98.662512][ T3139] ? usb_new_device+0x1b91/0x2950 [ 98.667606][ T3139] ? hub_event+0x58e3/0x89e0 [ 98.672265][ T3139] ? process_one_work+0xdb6/0x1820 [ 98.677410][ T3139] ? worker_thread+0x10d0/0x2240 [ 98.682362][ T3139] ? kthread+0x3c7/0x500 [ 98.686630][ T3139] ? ret_from_fork+0x1f/0x30 [ 98.691267][ T3139] ? __stack_depot_save+0x21/0x4b0 [ 98.696583][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 98.702390][ T3139] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 98.708699][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 98.713981][ T3139] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 98.719969][ T3139] __msan_warning+0x94/0x110 [ 98.724619][ T3139] string+0x4ec/0x6f0 [ 98.728796][ T3139] vsnprintf+0x2222/0x3650 [ 98.733271][ T3139] pointer+0x18e6/0x1f70 [ 98.737544][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 98.742808][ T3139] vsnprintf+0x1a9b/0x3650 [ 98.747276][ T3139] vprintk_store+0x537/0x2150 [ 98.752297][ T3139] ? vsnprintf+0x355b/0x3650 [ 98.756960][ T3139] ? snprintf+0x24a/0x290 [ 98.761414][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 98.766629][ T3139] vprintk_emit+0x28b/0xab0 [ 98.771321][ T3139] dev_vprintk_emit+0x5ef/0x6d0 [ 98.776223][ T3139] dev_printk_emit+0x1dd/0x21f [ 98.781320][ T3139] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 98.787198][ T3139] __dev_printk+0x3be/0x440 [ 98.791755][ T3139] _dev_info+0x1ea/0x22f [ 98.796065][ T3139] ? usb_read8+0xe7/0x130 [ 98.800414][ T3139] ? r871xu_drv_init+0x185e/0x3070 [ 98.805653][ T3139] ? r8712_read8+0xa5/0xd0 [ 98.810181][ T3139] r871xu_drv_init+0x1929/0x3070 [ 98.815161][ T3139] ? __pm_runtime_set_status+0x1aed/0x1e40 [ 98.821008][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 98.826341][ T3139] ? r871x_dev_unload+0x310/0x310 [ 98.831398][ T3139] ? r871x_dev_unload+0x310/0x310 [ 98.836468][ T3139] usb_probe_interface+0xf19/0x1600 [ 98.841809][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 98.846961][ T3139] ? usb_register_driver+0x900/0x900 [ 98.852361][ T3139] really_probe+0x6c7/0x1350 [ 98.856992][ T3139] __driver_probe_device+0x3e9/0x530 [ 98.862320][ T3139] __device_attach_driver+0x79f/0x1120 [ 98.867826][ T3139] bus_for_each_drv+0x2d6/0x3f0 [ 98.872722][ T3139] ? deferred_probe_work_func+0x4c0/0x4c0 [ 98.878498][ T3139] __device_attach+0x593/0x8e0 [ 98.883375][ T3139] ? btf_enum_check_meta+0xaf1/0x1b50 [ 98.888771][ T3139] device_initial_probe+0x4a/0x60 [ 98.893839][ T3139] bus_probe_device+0x17b/0x3e0 [ 98.898735][ T3139] device_add+0x1fff/0x26e0 [ 98.903275][ T3139] usb_set_configuration+0x37e9/0x3ed0 [ 98.908775][ T3139] ? usb_set_configuration+0xb91/0x3ed0 [ 98.914351][ T3139] ? usb_choose_configuration+0xcbb/0xf90 [ 98.921275][ T3139] usb_generic_driver_probe+0x13c/0x300 [ 98.926859][ T3139] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 98.932725][ T3139] ? usb_choose_configuration+0xf90/0xf90 [ 98.938481][ T3139] usb_probe_device+0x309/0x570 [ 98.943466][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 98.948632][ T3139] ? usb_register_device_driver+0x580/0x580 [ 98.954570][ T3139] really_probe+0x6c7/0x1350 [ 98.959211][ T3139] __driver_probe_device+0x3e9/0x530 [ 98.964649][ T3139] __device_attach_driver+0x79f/0x1120 [ 98.970254][ T3139] bus_for_each_drv+0x2d6/0x3f0 [ 98.975176][ T3139] ? deferred_probe_work_func+0x4c0/0x4c0 [ 98.981062][ T3139] __device_attach+0x593/0x8e0 [ 98.986117][ T3139] ? btf_enum_check_meta+0xaf1/0x1b50 [ 98.991542][ T3139] device_initial_probe+0x4a/0x60 [ 98.996619][ T3139] bus_probe_device+0x17b/0x3e0 [ 99.001541][ T3139] device_add+0x1fff/0x26e0 [ 99.006108][ T3139] usb_new_device+0x1b91/0x2950 [ 99.011018][ T3139] hub_event+0x58e3/0x89e0 [ 99.015499][ T3139] ? kmsan_get_metadata+0x33/0x220 [ 99.021601][ T3139] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 99.027754][ T3139] ? led_work+0x7b0/0x7b0 [ 99.032132][ T3139] process_one_work+0xdb6/0x1820 [ 99.037116][ T3139] worker_thread+0x10d0/0x2240 [ 99.041958][ T3139] kthread+0x3c7/0x500 [ 99.046075][ T3139] ? worker_clr_flags+0x3a0/0x3a0 [ 99.051266][ T3139] ? kthread_blkcg+0x120/0x120 [ 99.056195][ T3139] ret_from_fork+0x1f/0x30 [ 99.060762][ T3139] [ 99.064034][ T3139] Kernel Offset: disabled [ 99.068502][ T3139] Rebooting in 86400 seconds..