Warning: Permanently added '10.128.0.254' (ECDSA) to the list of known hosts. syzkaller login: [ 129.883518][ T18] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 130.242790][ T18] usb 1-1: config 0 has an invalid interface number: 192 but max is 0 [ 130.251124][ T18] usb 1-1: config 0 has no interface number 0 [ 130.257551][ T18] usb 1-1: config 0 interface 192 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 130.268405][ T18] usb 1-1: config 0 interface 192 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 130.279225][ T18] usb 1-1: config 0 interface 192 altsetting 0 endpoint 0x1 has invalid maxpacket 512, setting to 64 [ 130.290596][ T18] usb 1-1: config 0 interface 192 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 130.301425][ T18] usb 1-1: config 0 interface 192 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 130.482740][ T18] usb 1-1: New USB device found, idVendor=13d3, idProduct=3325, bcdDevice=ec.31 [ 130.491926][ T18] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 130.500158][ T18] usb 1-1: Product: syz [ 130.504561][ T18] usb 1-1: Manufacturer: syz [ 130.509235][ T18] usb 1-1: SerialNumber: syz [ 130.516879][ T18] usb 1-1: config 0 descriptor?? [ 130.559649][ T18] r8712u: register rtl8712_netdev_ops to netdev_ops [ 130.566475][ T18] usb 1-1: r8712u: USB_SPEED_LOW with 1 endpoints [ 130.674082][ T18] ===================================================== [ 130.674092][ T18] BUG: KMSAN: uninit-value in string+0x573/0x6d0 [ 130.674096][ T18] string+0x573/0x6d0 [ 130.674100][ T18] vsnprintf+0x1acd/0x3600 [ 130.674104][ T18] pointer+0x1c90/0x1db0 [ 130.674107][ T18] vsnprintf+0x15f2/0x3600 [ 130.674111][ T18] vprintk_store+0x29d/0x1d90 [ 130.674115][ T18] vprintk_emit+0x28e/0x8b0 [ 130.674118][ T18] dev_vprintk_emit+0x5f7/0x6d8 [ 130.674122][ T18] dev_printk_emit+0x1ce/0x210 [ 130.674126][ T18] __dev_printk+0x3dc/0x458 [ 130.674130][ T18] _dev_info+0x1e5/0x22a [ 130.674134][ T18] r871xu_drv_init+0x1a59/0x2fe0 [ 130.674137][ T18] usb_probe_interface+0xfcc/0x1520 [ 130.674142][ T18] really_probe+0xc71/0x25a0 [ 130.674145][ T18] driver_probe_device+0x31b/0x420 [ 130.674149][ T18] __device_attach_driver+0x6d8/0x8d0 [ 130.674154][ T18] bus_for_each_drv+0x2c8/0x3f0 [ 130.674157][ T18] __device_attach+0x57f/0x8a0 [ 130.674161][ T18] device_initial_probe+0x4a/0x60 [ 130.674165][ T18] bus_probe_device+0x17e/0x3d0 [ 130.674169][ T18] device_add+0x2bba/0x35c0 [ 130.674173][ T18] usb_set_configuration+0x3872/0x3eb0 [ 130.674177][ T18] usb_generic_driver_probe+0x138/0x300 [ 130.674181][ T18] usb_probe_device+0x317/0x570 [ 130.674185][ T18] really_probe+0xc71/0x25a0 [ 130.674189][ T18] driver_probe_device+0x31b/0x420 [ 130.674193][ T18] __device_attach_driver+0x6d8/0x8d0 [ 130.674197][ T18] bus_for_each_drv+0x2c8/0x3f0 [ 130.674201][ T18] __device_attach+0x57f/0x8a0 [ 130.674205][ T18] device_initial_probe+0x4a/0x60 [ 130.674209][ T18] bus_probe_device+0x17e/0x3d0 [ 130.674213][ T18] device_add+0x2bba/0x35c0 [ 130.674216][ T18] usb_new_device+0x1bd4/0x2a30 [ 130.674220][ T18] hub_event+0x5a11/0x87a0 [ 130.674224][ T18] process_one_work+0x1219/0x1fe0 [ 130.674228][ T18] worker_thread+0x10ec/0x2340 [ 130.674231][ T18] kthread+0x521/0x560 [ 130.674235][ T18] ret_from_fork+0x1f/0x30 [ 130.674238][ T18] [ 130.674241][ T18] Local variable ----data@usb_read8 created at: [ 130.674246][ T18] usb_read8+0x5d/0x130 [ 130.674250][ T18] r8712_read8+0xa7/0xd0 [ 130.674254][ T18] ===================================================== [ 130.674259][ T18] Disabling lock debugging due to kernel taint [ 130.674264][ T18] Kernel panic - not syncing: panic_on_kmsan set ... [ 130.674270][ T18] CPU: 1 PID: 18 Comm: kworker/1:0 Tainted: G B 5.13.0-syzkaller #0 [ 130.674277][ T18] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.674283][ T18] Workqueue: usb_hub_wq hub_event [ 130.674292][ T18] Call Trace: [ 130.674296][ T18] dump_stack+0x24c/0x2e0 [ 130.674299][ T18] panic+0x4c6/0xea7 [ 130.674302][ T18] ? add_taint+0x17c/0x210 [ 130.674306][ T18] ? vsnprintf+0x329/0x3600 [ 130.674310][ T18] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 130.674314][ T18] kmsan_report+0x2fa/0x300 [ 130.674318][ T18] ? __msan_warning+0xd7/0x150 [ 130.674322][ T18] ? string+0x573/0x6d0 [ 130.674325][ T18] ? vsnprintf+0x1acd/0x3600 [ 130.674329][ T18] ? pointer+0x1c90/0x1db0 [ 130.674333][ T18] ? vsnprintf+0x15f2/0x3600 [ 130.674336][ T18] ? vprintk_store+0x29d/0x1d90 [ 130.674340][ T18] ? vprintk_emit+0x28e/0x8b0 [ 130.674344][ T18] ? dev_vprintk_emit+0x5f7/0x6d8 [ 130.674348][ T18] ? dev_printk_emit+0x1ce/0x210 [ 130.674352][ T18] ? __dev_printk+0x3dc/0x458 [ 130.674356][ T18] ? _dev_info+0x1e5/0x22a [ 130.674360][ T18] ? r871xu_drv_init+0x1a59/0x2fe0 [ 130.674364][ T18] ? usb_probe_interface+0xfcc/0x1520 [ 130.674368][ T18] ? really_probe+0xc71/0x25a0 [ 130.674372][ T18] ? driver_probe_device+0x31b/0x420 [ 130.674376][ T18] ? __device_attach_driver+0x6d8/0x8d0 [ 130.674380][ T18] ? bus_for_each_drv+0x2c8/0x3f0 [ 130.674384][ T18] ? __device_attach+0x57f/0x8a0 [ 130.674388][ T18] ? device_initial_probe+0x4a/0x60 [ 130.674392][ T18] ? bus_probe_device+0x17e/0x3d0 [ 130.674396][ T18] ? device_add+0x2bba/0x35c0 [ 130.674400][ T18] ? usb_set_configuration+0x3872/0x3eb0 [ 130.674404][ T18] ? usb_generic_driver_probe+0x138/0x300 [ 130.674408][ T18] ? usb_probe_device+0x317/0x570 [ 130.674412][ T18] ? really_probe+0xc71/0x25a0 [ 130.674416][ T18] ? driver_probe_device+0x31b/0x420 [ 130.674420][ T18] ? __device_attach_driver+0x6d8/0x8d0 [ 130.674424][ T18] ? bus_for_each_drv+0x2c8/0x3f0 [ 130.674428][ T18] ? __device_attach+0x57f/0x8a0 [ 130.674432][ T18] ? device_initial_probe+0x4a/0x60 [ 130.674436][ T18] ? bus_probe_device+0x17e/0x3d0 [ 130.674440][ T18] ? device_add+0x2bba/0x35c0 [ 130.674444][ T18] ? usb_new_device+0x1bd4/0x2a30 [ 130.674448][ T18] ? hub_event+0x5a11/0x87a0 [ 130.674452][ T18] ? process_one_work+0x1219/0x1fe0 [ 130.674456][ T18] ? worker_thread+0x10ec/0x2340 [ 130.674459][ T18] ? kthread+0x521/0x560 [ 130.674463][ T18] ? ret_from_fork+0x1f/0x30 [ 130.674467][ T18] ? kmsan_internal_set_shadow_origin+0x52/0xb0 [ 130.674472][ T18] ? __msan_poison_alloca+0x15a/0x1a0 [ 130.674476][ T18] __msan_warning+0xd7/0x150 [ 130.674479][ T18] string+0x573/0x6d0 [ 130.674483][ T18] vsnprintf+0x1acd/0x3600 [ 130.674486][ T18] pointer+0x1c90/0x1db0 [ 130.674490][ T18] ? kmsan_get_shadow_origin_ptr+0x90/0xc0 [ 130.674494][ T18] vsnprintf+0x15f2/0x3600 [ 130.674498][ T18] vprintk_store+0x29d/0x1d90 [ 130.674502][ T18] ? kmsan_internal_set_shadow_origin+0x52/0xb0 [ 130.674506][ T18] vprintk_emit+0x28e/0x8b0 [ 130.674510][ T18] dev_vprintk_emit+0x5f7/0x6d8 [ 130.674514][ T18] dev_printk_emit+0x1ce/0x210 [ 130.674518][ T18] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 130.674522][ T18] ? kmsan_get_shadow_origin_ptr+0x90/0xc0 [ 130.674527][ T18] __dev_printk+0x3dc/0x458 [ 130.674530][ T18] _dev_info+0x1e5/0x22a [ 130.674534][ T18] ? usb_read8+0xe7/0x130 [ 130.674538][ T18] ? r871xu_drv_init+0x1986/0x2fe0 [ 130.674542][ T18] ? r8712_usb_set_intf_ops+0x240/0x240 [ 130.674546][ T18] r871xu_drv_init+0x1a59/0x2fe0 [ 130.674550][ T18] ? r871x_dev_unload+0x310/0x310 [ 130.674554][ T18] usb_probe_interface+0xfcc/0x1520 [ 130.674558][ T18] ? usb_register_driver+0x900/0x900 [ 130.674562][ T18] really_probe+0xc71/0x25a0 [ 130.674566][ T18] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 130.674571][ T18] driver_probe_device+0x31b/0x420 [ 130.674575][ T18] __device_attach_driver+0x6d8/0x8d0 [ 130.674579][ T18] bus_for_each_drv+0x2c8/0x3f0 [ 130.674583][ T18] ? deferred_probe_work_func+0x4d0/0x4d0 [ 130.674587][ T18] __device_attach+0x57f/0x8a0 [ 130.674591][ T18] device_initial_probe+0x4a/0x60 [ 130.674595][ T18] bus_probe_device+0x17e/0x3d0 [ 130.674599][ T18] ? kmsan_get_shadow_origin_ptr+0x90/0xc0 [ 130.674603][ T18] device_add+0x2bba/0x35c0 [ 130.674607][ T18] usb_set_configuration+0x3872/0x3eb0 [ 130.674611][ T18] ? usb_set_configuration+0xad1/0x3eb0 [ 130.674615][ T18] usb_generic_driver_probe+0x138/0x300 [ 130.674620][ T18] ? usb_choose_configuration+0xee0/0xee0 [ 130.674624][ T18] usb_probe_device+0x317/0x570 [ 130.674628][ T18] ? usb_register_device_driver+0x590/0x590 [ 130.674632][ T18] really_probe+0xc71/0x25a0 [ 130.674636][ T18] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 130.674640][ T18] driver_probe_device+0x31b/0x420 [ 130.674644][ T18] __device_attach_driver+0x6d8/0x8d0 [ 130.674648][ T18] bus_for_each_drv+0x2c8/0x3f0 [ 130.674652][ T18] ? deferred_probe_work_func+0x4d0/0x4d0 [ 130.674657][ T18] __device_attach+0x57f/0x8a0 [ 130.674660][ T18] device_initial_probe+0x4a/0x60 [ 130.674664][ T18] bus_probe_device+0x17e/0x3d0 [ 130.674668][ T18] ? kmsan_get_shadow_origin_ptr+0x90/0xc0 [ 130.674672][ T18] device_add+0x2bba/0x35c0 [ 130.674676][ T18] usb_new_device+0x1bd4/0x2a30 [ 130.674680][ T18] hub_event+0x5a11/0x87a0 [ 130.674684][ T18] ? kmsan_get_metadata+0x116/0x180 [ 130.674688][ T18] ? kmsan_get_shadow_origin_ptr+0x90/0xc0 [ 130.674692][ T18] ? led_work+0x780/0x780 [ 130.674696][ T18] process_one_work+0x1219/0x1fe0 [ 130.674699][ T18] worker_thread+0x10ec/0x2340 [ 130.674703][ T18] kthread+0x521/0x560 [ 130.674707][ T18] ? process_one_work+0x1fe0/0x1fe0 [ 130.674711][ T18] ? kthread_blkcg+0x110/0x110 [ 130.674715][ T18] ret_from_fork+0x1f/0x30 [ 130.676117][ T18] Kernel Offset: disabled