Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 140.945282][ T33] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 141.185187][ T33] usb 1-1: Using ep0 maxpacket: 32 [ 141.325505][ T33] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247 [ 141.335985][ T33] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 16 [ 141.346832][ T33] usb 1-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 141.515344][ T33] usb 1-1: New USB device found, idVendor=0424, idProduct=7505, bcdDevice= 0.40 [ 141.524698][ T33] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 141.533046][ T33] usb 1-1: Product: syz [ 141.537434][ T33] usb 1-1: Manufacturer: syz [ 141.542093][ T33] usb 1-1: SerialNumber: syz [ 141.588558][ T8262] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 141.598777][ T8262] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 141.816516][ T8262] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 141.823571][ T8262] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 142.265336][ T33] cdc_ether: probe of 1-1:1.0 failed with error -22 [ 142.272204][ T33] smsc75xx v1.0.0 [ 142.465525][ T8262] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 142.472565][ T8262] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 142.715131][ T33] ===================================================== [ 142.722105][ T33] BUG: KMSAN: uninit-value in smsc75xx_bind+0x576/0x13f0 [ 142.729113][ T33] CPU: 1 PID: 33 Comm: kworker/1:1 Not tainted 5.10.0-rc4-syzkaller #0 [ 142.737334][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 142.747508][ T33] Workqueue: usb_hub_wq hub_event [ 142.752535][ T33] Call Trace: [ 142.755809][ T33] dump_stack+0x21c/0x280 [ 142.760139][ T33] kmsan_report+0xf7/0x1e0 [ 142.764531][ T33] __msan_warning+0x5f/0xa0 [ 142.769029][ T33] smsc75xx_bind+0x576/0x13f0 [ 142.773803][ T33] ? smsc75xx_write_wuff+0xa60/0xa60 [ 142.779081][ T33] usbnet_probe+0x1169/0x3e90 [ 142.783747][ T33] ? kmsan_internal_set_origin+0x85/0xc0 [ 142.789368][ T33] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 142.795418][ T33] ? usbnet_disconnect+0x670/0x670 [ 142.800533][ T33] usb_probe_interface+0xfcc/0x1520 [ 142.805841][ T33] ? usb_register_driver+0x900/0x900 [ 142.811117][ T33] really_probe+0xebd/0x2420 [ 142.815697][ T33] driver_probe_device+0x293/0x390 [ 142.820812][ T33] __device_attach_driver+0x63f/0x830 [ 142.826228][ T33] bus_for_each_drv+0x2ca/0x3f0 [ 142.831063][ T33] ? state_synced_show+0x130/0x130 [ 142.836156][ T33] __device_attach+0x538/0x860 [ 142.840909][ T33] device_initial_probe+0x4a/0x60 [ 142.845916][ T33] bus_probe_device+0x177/0x3d0 [ 142.850839][ T33] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 142.856633][ T33] device_add+0x399e/0x3f20 [ 142.861123][ T33] usb_set_configuration+0x39cf/0x4010 [ 142.866566][ T33] ? usb_set_configuration+0xa61/0x4010 [ 142.872092][ T33] ? kmsan_get_shadow_origin_ptr+0x50/0xb0 [ 142.877886][ T33] usb_generic_driver_probe+0x138/0x300 [ 142.883410][ T33] ? usb_choose_configuration+0xf00/0xf00 [ 142.889282][ T33] usb_probe_device+0x317/0x570 [ 142.894136][ T33] ? usb_register_device_driver+0x590/0x590 [ 142.900019][ T33] really_probe+0xebd/0x2420 [ 142.904622][ T33] driver_probe_device+0x293/0x390 [ 142.909721][ T33] __device_attach_driver+0x63f/0x830 [ 142.915084][ T33] bus_for_each_drv+0x2ca/0x3f0 [ 142.919950][ T33] ? state_synced_show+0x130/0x130 [ 142.925080][ T33] __device_attach+0x538/0x860 [ 142.929867][ T33] device_initial_probe+0x4a/0x60 [ 142.934913][ T33] bus_probe_device+0x177/0x3d0 [ 142.939788][ T33] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 142.945611][ T33] device_add+0x399e/0x3f20 [ 142.950130][ T33] usb_new_device+0x1bd6/0x2a30 [ 142.954999][ T33] hub_event+0x5bc9/0x8890 [ 142.959436][ T33] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.965519][ T33] ? kmsan_get_metadata+0x116/0x180 [ 142.970731][ T33] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 142.976537][ T33] ? led_work+0x780/0x780 [ 142.980927][ T33] process_one_work+0x121c/0x1fc0 [ 142.985979][ T33] worker_thread+0x10cc/0x2740 [ 142.990772][ T33] ? kmsan_get_metadata+0x116/0x180 [ 142.995953][ T33] kthread+0x51c/0x560 [ 143.000009][ T33] ? process_one_work+0x1fc0/0x1fc0 [ 143.005207][ T33] ? kthread_blkcg+0x110/0x110 [ 143.009948][ T33] ret_from_fork+0x1f/0x30 [ 143.014336][ T33] [ 143.016640][ T33] Local variable ----buf.i91@smsc75xx_bind created at: [ 143.023489][ T33] smsc75xx_bind+0x435/0x13f0 [ 143.028160][ T33] smsc75xx_bind+0x435/0x13f0 [ 143.032821][ T33] ===================================================== [ 143.039726][ T33] Disabling lock debugging due to kernel taint [ 143.045853][ T33] Kernel panic - not syncing: panic_on_warn set ... [ 143.052437][ T33] CPU: 1 PID: 33 Comm: kworker/1:1 Tainted: G B 5.10.0-rc4-syzkaller #0 [ 143.062064][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.072106][ T33] Workqueue: usb_hub_wq hub_event [ 143.077109][ T33] Call Trace: [ 143.080382][ T33] dump_stack+0x21c/0x280 [ 143.084689][ T33] panic+0x4c8/0xea7 [ 143.088565][ T33] ? add_taint+0x17c/0x210 [ 143.092968][ T33] kmsan_report+0x1da/0x1e0 [ 143.097459][ T33] __msan_warning+0x5f/0xa0 [ 143.101957][ T33] smsc75xx_bind+0x576/0x13f0 [ 143.106628][ T33] ? smsc75xx_write_wuff+0xa60/0xa60 [ 143.111904][ T33] usbnet_probe+0x1169/0x3e90 [ 143.116571][ T33] ? kmsan_internal_set_origin+0x85/0xc0 [ 143.122296][ T33] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 143.128350][ T33] ? usbnet_disconnect+0x670/0x670 [ 143.133452][ T33] usb_probe_interface+0xfcc/0x1520 [ 143.138634][ T33] ? usb_register_driver+0x900/0x900 [ 143.143894][ T33] really_probe+0xebd/0x2420 [ 143.148482][ T33] driver_probe_device+0x293/0x390 [ 143.153571][ T33] __device_attach_driver+0x63f/0x830 [ 143.158942][ T33] bus_for_each_drv+0x2ca/0x3f0 [ 143.163772][ T33] ? state_synced_show+0x130/0x130 [ 143.168863][ T33] __device_attach+0x538/0x860 [ 143.173607][ T33] device_initial_probe+0x4a/0x60 [ 143.178610][ T33] bus_probe_device+0x177/0x3d0 [ 143.183439][ T33] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 143.189225][ T33] device_add+0x399e/0x3f20 [ 143.193711][ T33] usb_set_configuration+0x39cf/0x4010 [ 143.199177][ T33] ? usb_set_configuration+0xa61/0x4010 [ 143.204699][ T33] ? kmsan_get_shadow_origin_ptr+0x50/0xb0 [ 143.210487][ T33] usb_generic_driver_probe+0x138/0x300 [ 143.216023][ T33] ? usb_choose_configuration+0xf00/0xf00 [ 143.221722][ T33] usb_probe_device+0x317/0x570 [ 143.226554][ T33] ? usb_register_device_driver+0x590/0x590 [ 143.232421][ T33] really_probe+0xebd/0x2420 [ 143.236989][ T33] driver_probe_device+0x293/0x390 [ 143.242101][ T33] __device_attach_driver+0x63f/0x830 [ 143.247454][ T33] bus_for_each_drv+0x2ca/0x3f0 [ 143.252280][ T33] ? state_synced_show+0x130/0x130 [ 143.257380][ T33] __device_attach+0x538/0x860 [ 143.262123][ T33] device_initial_probe+0x4a/0x60 [ 143.267145][ T33] bus_probe_device+0x177/0x3d0 [ 143.271975][ T33] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 143.277761][ T33] device_add+0x399e/0x3f20 [ 143.282244][ T33] usb_new_device+0x1bd6/0x2a30 [ 143.287075][ T33] hub_event+0x5bc9/0x8890 [ 143.291503][ T33] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.297546][ T33] ? kmsan_get_metadata+0x116/0x180 [ 143.302738][ T33] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 143.308538][ T33] ? led_work+0x780/0x780 [ 143.312844][ T33] process_one_work+0x121c/0x1fc0 [ 143.317850][ T33] worker_thread+0x10cc/0x2740 [ 143.322692][ T33] ? kmsan_get_metadata+0x116/0x180 [ 143.327870][ T33] kthread+0x51c/0x560 [ 143.331916][ T33] ? process_one_work+0x1fc0/0x1fc0 [ 143.337091][ T33] ? kthread_blkcg+0x110/0x110 [ 143.341851][ T33] ret_from_fork+0x1f/0x30 [ 143.346896][ T33] Kernel Offset: disabled [ 143.351211][ T33] Rebooting in 86400 seconds..