forked to background, child pid 3048 no interfaces have a carrier [ 64.139022][ T3049] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.189765][ T3049] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.185' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 90.441874][ T3137] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 90.681916][ T3137] usb 1-1: Using ep0 maxpacket: 16 [ 90.802010][ T3137] usb 1-1: config 2 has an invalid interface descriptor of length 2, skipping [ 90.811513][ T3137] usb 1-1: config 2 interface 0 altsetting 0 endpoint 0xF has an invalid bInterval 187, changing to 11 [ 90.822941][ T3137] usb 1-1: config 2 interface 0 altsetting 0 endpoint 0xF has invalid maxpacket 34001, setting to 1024 [ 90.834207][ T3137] usb 1-1: config 2 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 5 [ 91.002261][ T3137] usb 1-1: New USB device found, idVendor=06f8, idProduct=e032, bcdDevice=99.26 [ 91.011424][ T3137] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 91.019639][ T3137] usb 1-1: Product: syz [ 91.023968][ T3137] usb 1-1: Manufacturer: syz [ 91.028620][ T3137] usb 1-1: SerialNumber: syz [ 91.054832][ T3468] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 91.327946][ T3137] r8712u: register rtl8712_netdev_ops to netdev_ops [ 91.334917][ T3137] usb 1-1: r8712u: USB_SPEED_HIGH with 1 endpoints [ 91.382060][ T3137] ===================================================== [ 91.389104][ T3137] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 91.395464][ T3137] string+0x4ec/0x6f0 [ 91.399475][ T3137] vsnprintf+0x2222/0x3650 [ 91.403904][ T3137] pointer+0x1844/0x2060 [ 91.408161][ T3137] vsnprintf+0x1a9b/0x3650 [ 91.412585][ T3137] vprintk_store+0x537/0x2150 [ 91.417282][ T3137] vprintk_emit+0x25c/0x950 [ 91.421809][ T3137] dev_vprintk_emit+0x5ef/0x6d0 [ 91.426703][ T3137] dev_printk_emit+0x1dd/0x21f [ 91.431498][ T3137] __dev_printk+0x3be/0x440 [ 91.436029][ T3137] _dev_info+0x1ea/0x22f [ 91.440287][ T3137] r871xu_drv_init+0x1929/0x3070 [ 91.445250][ T3137] usb_probe_interface+0xf19/0x1600 [ 91.450473][ T3137] really_probe+0x653/0x14b0 [ 91.455099][ T3137] __driver_probe_device+0x3e9/0x530 [ 91.460417][ T3137] __device_attach_driver+0x79f/0x1120 [ 91.465895][ T3137] bus_for_each_drv+0x2d6/0x3f0 [ 91.470759][ T3137] __device_attach+0x593/0x8e0 [ 91.475555][ T3137] device_initial_probe+0x4a/0x60 [ 91.480598][ T3137] bus_probe_device+0x17b/0x3e0 [ 91.485477][ T3137] device_add+0x1fff/0x26e0 [ 91.490000][ T3137] usb_set_configuration+0x37e9/0x3ed0 [ 91.495486][ T3137] usb_generic_driver_probe+0x13c/0x300 [ 91.501054][ T3137] usb_probe_device+0x309/0x570 [ 91.505924][ T3137] really_probe+0x653/0x14b0 [ 91.510527][ T3137] __driver_probe_device+0x3e9/0x530 [ 91.515827][ T3137] __device_attach_driver+0x79f/0x1120 [ 91.521303][ T3137] bus_for_each_drv+0x2d6/0x3f0 [ 91.526177][ T3137] __device_attach+0x593/0x8e0 [ 91.530960][ T3137] device_initial_probe+0x4a/0x60 [ 91.536015][ T3137] bus_probe_device+0x17b/0x3e0 [ 91.540887][ T3137] device_add+0x1fff/0x26e0 [ 91.545416][ T3137] usb_new_device+0x1b8e/0x2950 [ 91.550286][ T3137] hub_event+0x58e3/0x89e0 [ 91.554736][ T3137] process_one_work+0xdb6/0x1820 [ 91.559691][ T3137] worker_thread+0x10b3/0x21e0 [ 91.564470][ T3137] kthread+0x3c7/0x500 [ 91.568569][ T3137] ret_from_fork+0x1f/0x30 [ 91.573073][ T3137] [ 91.575392][ T3137] Local variable data created at: [ 91.580404][ T3137] usb_read8+0x5d/0x130 [ 91.584588][ T3137] r8712_read8+0xa5/0xd0 [ 91.588844][ T3137] [ 91.591157][ T3137] CPU: 1 PID: 3137 Comm: kworker/1:3 Not tainted 5.17.0-rc4-syzkaller #0 [ 91.599580][ T3137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.609647][ T3137] Workqueue: usb_hub_wq hub_event [ 91.615152][ T3137] ===================================================== [ 91.622075][ T3137] Disabling lock debugging due to kernel taint [ 91.628226][ T3137] Kernel panic - not syncing: kmsan.panic set ... [ 91.634651][ T3137] CPU: 1 PID: 3137 Comm: kworker/1:3 Tainted: G B 5.17.0-rc4-syzkaller #0 [ 91.644479][ T3137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.654553][ T3137] Workqueue: usb_hub_wq hub_event [ 91.659598][ T3137] Call Trace: [ 91.662884][ T3137] [ 91.665812][ T3137] dump_stack_lvl+0x1ff/0x28e [ 91.670522][ T3137] dump_stack+0x25/0x28 [ 91.674700][ T3137] panic+0x487/0xe1f [ 91.678634][ T3137] ? add_taint+0x181/0x210 [ 91.683069][ T3137] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 91.688897][ T3137] kmsan_report+0x2e6/0x2f0 [ 91.693438][ T3137] ? __msan_warning+0xb8/0x130 [ 91.698228][ T3137] ? string+0x4ec/0x6f0 [ 91.702388][ T3137] ? vsnprintf+0x2222/0x3650 [ 91.707100][ T3137] ? pointer+0x1844/0x2060 [ 91.711523][ T3137] ? vsnprintf+0x1a9b/0x3650 [ 91.716122][ T3137] ? vprintk_store+0x537/0x2150 [ 91.720997][ T3137] ? vprintk_emit+0x25c/0x950 [ 91.725691][ T3137] ? dev_vprintk_emit+0x5ef/0x6d0 [ 91.730775][ T3137] ? dev_printk_emit+0x1dd/0x21f [ 91.735735][ T3137] ? __dev_printk+0x3be/0x440 [ 91.740439][ T3137] ? _dev_info+0x1ea/0x22f [ 91.744894][ T3137] ? r871xu_drv_init+0x1929/0x3070 [ 91.750040][ T3137] ? usb_probe_interface+0xf19/0x1600 [ 91.755458][ T3137] ? really_probe+0x653/0x14b0 [ 91.760236][ T3137] ? __driver_probe_device+0x3e9/0x530 [ 91.765715][ T3137] ? __device_attach_driver+0x79f/0x1120 [ 91.771372][ T3137] ? bus_for_each_drv+0x2d6/0x3f0 [ 91.776409][ T3137] ? __device_attach+0x593/0x8e0 [ 91.781362][ T3137] ? device_initial_probe+0x4a/0x60 [ 91.786578][ T3137] ? bus_probe_device+0x17b/0x3e0 [ 91.791628][ T3137] ? device_add+0x1fff/0x26e0 [ 91.796352][ T3137] ? usb_set_configuration+0x37e9/0x3ed0 [ 91.802012][ T3137] ? usb_generic_driver_probe+0x13c/0x300 [ 91.807756][ T3137] ? usb_probe_device+0x309/0x570 [ 91.812806][ T3137] ? really_probe+0x653/0x14b0 [ 91.817604][ T3137] ? __driver_probe_device+0x3e9/0x530 [ 91.823097][ T3137] ? __device_attach_driver+0x79f/0x1120 [ 91.828746][ T3137] ? bus_for_each_drv+0x2d6/0x3f0 [ 91.833785][ T3137] ? __device_attach+0x593/0x8e0 [ 91.838762][ T3137] ? device_initial_probe+0x4a/0x60 [ 91.843980][ T3137] ? bus_probe_device+0x17b/0x3e0 [ 91.849018][ T3137] ? device_add+0x1fff/0x26e0 [ 91.853718][ T3137] ? usb_new_device+0x1b8e/0x2950 [ 91.858759][ T3137] ? hub_event+0x58e3/0x89e0 [ 91.863362][ T3137] ? process_one_work+0xdb6/0x1820 [ 91.868497][ T3137] ? worker_thread+0x10b3/0x21e0 [ 91.873445][ T3137] ? kthread+0x3c7/0x500 [ 91.877707][ T3137] ? ret_from_fork+0x1f/0x30 [ 91.882316][ T3137] ? stack_trace_save+0x43/0x60 [ 91.887192][ T3137] ? __stack_depot_save+0x21/0x4d0 [ 91.892326][ T3137] ? kmsan_get_metadata+0x33/0x220 [ 91.897476][ T3137] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 91.903745][ T3137] ? kmsan_get_metadata+0x33/0x220 [ 91.908885][ T3137] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 91.914729][ T3137] __msan_warning+0xb8/0x130 [ 91.919343][ T3137] string+0x4ec/0x6f0 [ 91.923344][ T3137] vsnprintf+0x2222/0x3650 [ 91.927787][ T3137] pointer+0x1844/0x2060 [ 91.932050][ T3137] ? kmsan_get_metadata+0x33/0x220 [ 91.937224][ T3137] vsnprintf+0x1a9b/0x3650 [ 91.941674][ T3137] vprintk_store+0x537/0x2150 [ 91.946402][ T3137] ? vsnprintf+0x355b/0x3650 [ 91.951018][ T3137] ? snprintf+0x24a/0x290 [ 91.955368][ T3137] vprintk_emit+0x25c/0x950 [ 91.959910][ T3137] dev_vprintk_emit+0x5ef/0x6d0 [ 91.964812][ T3137] dev_printk_emit+0x1dd/0x21f [ 91.969617][ T3137] __dev_printk+0x3be/0x440 [ 91.974152][ T3137] _dev_info+0x1ea/0x22f [ 91.978434][ T3137] ? usb_read8+0xe7/0x130 [ 91.982797][ T3137] ? r871xu_drv_init+0x185e/0x3070 [ 91.987928][ T3137] ? r8712_read8+0xa5/0xd0 [ 91.992369][ T3137] r871xu_drv_init+0x1929/0x3070 [ 91.997342][ T3137] ? __pm_runtime_set_status+0x1aed/0x1e40 [ 92.003187][ T3137] ? kmsan_get_metadata+0x33/0x220 [ 92.008345][ T3137] ? r871x_dev_unload+0x310/0x310 [ 92.013741][ T3137] ? r871x_dev_unload+0x310/0x310 [ 92.018798][ T3137] usb_probe_interface+0xf19/0x1600 [ 92.024064][ T3137] ? kmsan_get_metadata+0x33/0x220 [ 92.029220][ T3137] ? usb_register_driver+0x900/0x900 [ 92.034537][ T3137] really_probe+0x653/0x14b0 [ 92.039157][ T3137] __driver_probe_device+0x3e9/0x530 [ 92.044467][ T3137] __device_attach_driver+0x79f/0x1120 [ 92.049956][ T3137] bus_for_each_drv+0x2d6/0x3f0 [ 92.054834][ T3137] ? deferred_probe_work_func+0x4c0/0x4c0 [ 92.060584][ T3137] __device_attach+0x593/0x8e0 [ 92.065367][ T3137] ? btf_func_check_meta+0x1a1/0x8d0 [ 92.070673][ T3137] device_initial_probe+0x4a/0x60 [ 92.075727][ T3137] bus_probe_device+0x17b/0x3e0 [ 92.080596][ T3137] device_add+0x1fff/0x26e0 [ 92.085132][ T3137] usb_set_configuration+0x37e9/0x3ed0 [ 92.090622][ T3137] ? usb_set_configuration+0xbb1/0x3ed0 [ 92.096214][ T3137] usb_generic_driver_probe+0x13c/0x300 [ 92.101791][ T3137] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 92.107681][ T3137] ? usb_choose_configuration+0xf90/0xf90 [ 92.113463][ T3137] usb_probe_device+0x309/0x570 [ 92.118367][ T3137] ? kmsan_get_metadata+0x33/0x220 [ 92.123513][ T3137] ? usb_register_device_driver+0x580/0x580 [ 92.129519][ T3137] really_probe+0x653/0x14b0 [ 92.134138][ T3137] __driver_probe_device+0x3e9/0x530 [ 92.139451][ T3137] __device_attach_driver+0x79f/0x1120 [ 92.144946][ T3137] bus_for_each_drv+0x2d6/0x3f0 [ 92.149834][ T3137] ? deferred_probe_work_func+0x4c0/0x4c0 [ 92.155583][ T3137] __device_attach+0x593/0x8e0 [ 92.160376][ T3137] ? btf_func_check_meta+0x1a1/0x8d0 [ 92.165699][ T3137] device_initial_probe+0x4a/0x60 [ 92.170761][ T3137] bus_probe_device+0x17b/0x3e0 [ 92.175644][ T3137] device_add+0x1fff/0x26e0 [ 92.180189][ T3137] usb_new_device+0x1b8e/0x2950 [ 92.185079][ T3137] hub_event+0x58e3/0x89e0 [ 92.189558][ T3137] ? kmsan_get_metadata+0x33/0x220 [ 92.194701][ T3137] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 92.200553][ T3137] ? led_work+0x7b0/0x7b0 [ 92.204898][ T3137] process_one_work+0xdb6/0x1820 [ 92.209868][ T3137] worker_thread+0x10b3/0x21e0 [ 92.214922][ T3137] kthread+0x3c7/0x500 [ 92.219037][ T3137] ? worker_clr_flags+0x370/0x370 [ 92.224121][ T3137] ? kthread_blkcg+0x120/0x120 [ 92.228922][ T3137] ret_from_fork+0x1f/0x30 [ 92.233393][ T3137] [ 92.236588][ T3137] Kernel Offset: disabled [ 92.240917][ T3137] Rebooting in 86400 seconds..