Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts. executing program [ 144.282706][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 144.522681][ T7] usb 1-1: Using ep0 maxpacket: 8 [ 144.642897][ T7] usb 1-1: config 1 has an invalid interface number: 10 but max is 0 [ 144.651109][ T7] usb 1-1: config 1 has no interface number 0 [ 144.657602][ T7] usb 1-1: New USB device found, idVendor=13d3, idProduct=3339, bcdDevice=f9.1f [ 144.667308][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 144.721578][ T7] r8712u: register rtl8712_netdev_ops to netdev_ops [ 144.728622][ T7] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 144.856321][ T7] ===================================================== [ 144.856345][ T7] BUG: KMSAN: uninit-value in string+0x573/0x6d0 [ 144.856357][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.12.0-rc6-syzkaller #0 [ 144.856369][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 144.856388][ T7] Workqueue: usb_hub_wq hub_event [ 144.856408][ T7] Call Trace: [ 144.856414][ T7] dump_stack+0x24c/0x2e0 [ 144.856422][ T7] kmsan_report+0xfb/0x1e0 [ 144.856430][ T7] __msan_warning+0x5c/0xa0 [ 144.856437][ T7] string+0x573/0x6d0 [ 144.856444][ T7] vsnprintf+0x1acd/0x3600 [ 144.856451][ T7] pointer+0x1cbb/0x1ea0 [ 144.856468][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.856476][ T7] vsnprintf+0x15f2/0x3600 [ 144.856484][ T7] vprintk_store+0x2ab/0x1df0 [ 144.856492][ T7] ? kmsan_internal_set_origin+0x85/0xc0 [ 144.856501][ T7] ? __msan_instrument_asm_store+0x22/0x130 [ 144.856509][ T7] ? __printk_safe_enter+0xe/0x30 [ 144.856516][ T7] vprintk_emit+0x28e/0x8b0 [ 144.856524][ T7] dev_vprintk_emit+0x5f7/0x6d8 [ 144.856532][ T7] dev_printk_emit+0x1ce/0x210 [ 144.856540][ T7] ? r8712_usbctrl_vendorreq+0x4a8/0x4d0 [ 144.856549][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.856558][ T7] __dev_printk+0x3dc/0x458 [ 144.856565][ T7] _dev_info+0x1e5/0x22a [ 144.856572][ T7] ? usb_read8+0xe7/0x130 [ 144.856579][ T7] ? r871xu_drv_init+0x1986/0x2fe0 [ 144.856586][ T7] ? r8712_usb_set_intf_ops+0x240/0x240 [ 144.856594][ T7] r871xu_drv_init+0x1a59/0x2fe0 [ 144.856602][ T7] ? r871x_dev_unload+0x310/0x310 [ 144.856610][ T7] usb_probe_interface+0xfcc/0x1520 [ 144.856618][ T7] ? usb_register_driver+0x900/0x900 [ 144.856626][ T7] really_probe+0xe15/0x24d0 [ 144.856634][ T7] driver_probe_device+0x29d/0x3a0 [ 144.856642][ T7] __device_attach_driver+0x63f/0x830 [ 144.856650][ T7] bus_for_each_drv+0x2c8/0x3f0 [ 144.856659][ T7] ? deferred_probe_work_func+0x4d0/0x4d0 [ 144.856667][ T7] __device_attach+0x56a/0x890 [ 144.856675][ T7] device_initial_probe+0x4a/0x60 [ 144.856683][ T7] bus_probe_device+0x17e/0x3d0 [ 144.856691][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.856700][ T7] device_add+0x2c15/0x31d0 [ 144.856708][ T7] usb_set_configuration+0x3872/0x3eb0 [ 144.856716][ T7] ? usb_set_configuration+0xac1/0x3eb0 [ 144.856724][ T7] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 144.856733][ T7] usb_generic_driver_probe+0x138/0x300 [ 144.856742][ T7] ? usb_choose_configuration+0xee0/0xee0 [ 144.856751][ T7] usb_probe_device+0x317/0x570 [ 144.856759][ T7] ? usb_register_device_driver+0x590/0x590 [ 144.856768][ T7] really_probe+0xe15/0x24d0 [ 144.856775][ T7] driver_probe_device+0x29d/0x3a0 [ 144.856784][ T7] __device_attach_driver+0x63f/0x830 [ 144.856792][ T7] bus_for_each_drv+0x2c8/0x3f0 [ 144.856801][ T7] ? deferred_probe_work_func+0x4d0/0x4d0 [ 144.856816][ T7] __device_attach+0x56a/0x890 [ 144.856824][ T7] device_initial_probe+0x4a/0x60 [ 144.856832][ T7] bus_probe_device+0x17e/0x3d0 [ 144.856840][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.856848][ T7] device_add+0x2c15/0x31d0 [ 144.856856][ T7] usb_new_device+0x1bd4/0x2a30 [ 144.856863][ T7] hub_event+0x5b99/0x8870 [ 144.856871][ T7] ? kmsan_get_metadata+0x116/0x180 [ 144.856879][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.856888][ T7] ? led_work+0x780/0x780 [ 144.856896][ T7] process_one_work+0x1219/0x1fe0 [ 144.856903][ T7] worker_thread+0x10ec/0x2340 [ 144.856911][ T7] kthread+0x521/0x560 [ 144.856919][ T7] ? process_one_work+0x1fe0/0x1fe0 [ 144.856927][ T7] ? kthread_blkcg+0x110/0x110 [ 144.856935][ T7] ret_from_fork+0x1f/0x30 [ 144.856942][ T7] [ 144.856949][ T7] Local variable ----data@usb_read8 created at: [ 144.856958][ T7] usb_read8+0x5d/0x130 [ 144.856965][ T7] usb_read8+0x5d/0x130 [ 144.856974][ T7] ===================================================== [ 144.856984][ T7] Disabling lock debugging due to kernel taint [ 144.856994][ T7] Kernel panic - not syncing: panic_on_kmsan set ... [ 144.857005][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 144.857019][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 144.857030][ T7] Workqueue: usb_hub_wq hub_event [ 144.857045][ T7] Call Trace: [ 144.857052][ T7] dump_stack+0x24c/0x2e0 [ 144.857058][ T7] panic+0x4c6/0xea7 [ 144.857065][ T7] ? add_taint+0x17c/0x210 [ 144.857073][ T7] ? vsnprintf+0x329/0x3600 [ 144.857080][ T7] kmsan_report+0x1de/0x1e0 [ 144.857088][ T7] __msan_warning+0x5c/0xa0 [ 144.857095][ T7] string+0x573/0x6d0 [ 144.857103][ T7] vsnprintf+0x1acd/0x3600 [ 144.857117][ T7] pointer+0x1cbb/0x1ea0 [ 144.857124][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.857133][ T7] vsnprintf+0x15f2/0x3600 [ 144.857140][ T7] vprintk_store+0x2ab/0x1df0 [ 144.857148][ T7] ? kmsan_internal_set_origin+0x85/0xc0 [ 144.857157][ T7] ? __msan_instrument_asm_store+0x22/0x130 [ 144.857166][ T7] ? __printk_safe_enter+0xe/0x30 [ 144.857174][ T7] vprintk_emit+0x28e/0x8b0 [ 144.857181][ T7] dev_vprintk_emit+0x5f7/0x6d8 [ 144.857189][ T7] dev_printk_emit+0x1ce/0x210 [ 144.857198][ T7] ? r8712_usbctrl_vendorreq+0x4a8/0x4d0 [ 144.857206][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.857215][ T7] __dev_printk+0x3dc/0x458 [ 144.857223][ T7] _dev_info+0x1e5/0x22a [ 144.857230][ T7] ? usb_read8+0xe7/0x130 [ 144.857237][ T7] ? r871xu_drv_init+0x1986/0x2fe0 [ 144.857246][ T7] ? r8712_usb_set_intf_ops+0x240/0x240 [ 144.857255][ T7] r871xu_drv_init+0x1a59/0x2fe0 [ 144.857263][ T7] ? r871x_dev_unload+0x310/0x310 [ 144.857271][ T7] usb_probe_interface+0xfcc/0x1520 [ 144.857278][ T7] ? usb_register_driver+0x900/0x900 [ 144.857286][ T7] really_probe+0xe15/0x24d0 [ 144.857293][ T7] driver_probe_device+0x29d/0x3a0 [ 144.857301][ T7] __device_attach_driver+0x63f/0x830 [ 144.857309][ T7] bus_for_each_drv+0x2c8/0x3f0 [ 144.857317][ T7] ? deferred_probe_work_func+0x4d0/0x4d0 [ 144.857326][ T7] __device_attach+0x56a/0x890 [ 144.857333][ T7] device_initial_probe+0x4a/0x60 [ 144.857342][ T7] bus_probe_device+0x17e/0x3d0 [ 144.857350][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.857358][ T7] device_add+0x2c15/0x31d0 [ 144.857366][ T7] usb_set_configuration+0x3872/0x3eb0 [ 144.857374][ T7] ? usb_set_configuration+0xac1/0x3eb0 [ 144.857383][ T7] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 144.857392][ T7] usb_generic_driver_probe+0x138/0x300 [ 144.857401][ T7] ? usb_choose_configuration+0xee0/0xee0 [ 144.857409][ T7] usb_probe_device+0x317/0x570 [ 144.857417][ T7] ? usb_register_device_driver+0x590/0x590 [ 144.857425][ T7] really_probe+0xe15/0x24d0 [ 144.857433][ T7] driver_probe_device+0x29d/0x3a0 [ 144.857442][ T7] __device_attach_driver+0x63f/0x830 [ 144.857450][ T7] bus_for_each_drv+0x2c8/0x3f0 [ 144.857467][ T7] ? deferred_probe_work_func+0x4d0/0x4d0 [ 144.857476][ T7] __device_attach+0x56a/0x890 [ 144.857484][ T7] device_initial_probe+0x4a/0x60 [ 144.857492][ T7] bus_probe_device+0x17e/0x3d0 [ 144.857500][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.857508][ T7] device_add+0x2c15/0x31d0 [ 144.857516][ T7] usb_new_device+0x1bd4/0x2a30 [ 144.857524][ T7] hub_event+0x5b99/0x8870 [ 144.857536][ T7] ? kmsan_get_metadata+0x116/0x180 [ 144.857544][ T7] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.857552][ T7] ? led_work+0x780/0x780 [ 144.857560][ T7] process_one_work+0x1219/0x1fe0 [ 144.857568][ T7] worker_thread+0x10ec/0x2340 [ 144.857575][ T7] kthread+0x521/0x560 [ 144.857583][ T7] ? process_one_work+0x1fe0/0x1fe0 [ 144.857592][ T7] ? kthread_blkcg+0x110/0x110 [ 144.857599][ T7] ret_from_fork+0x1f/0x30 [ 144.858273][ T7] Kernel Offset: disabled