forked to background, child pid 3051 no interfaces have a carrier [ 68.602281][ T3052] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.649736][ T3052] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 94.523323][ T119] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 94.883483][ T119] usb 1-1: config 0 has an invalid interface number: 25 but max is 0 [ 94.891680][ T119] usb 1-1: config 0 has no interface number 0 [ 94.898026][ T119] usb 1-1: config 0 interface 25 has no altsetting 0 [ 94.983699][ T119] usb 1-1: New USB device found, idVendor=13d3, idProduct=3342, bcdDevice=9a.c7 [ 94.992934][ T119] usb 1-1: New USB device strings: Mfr=12, Product=0, SerialNumber=0 [ 95.001233][ T119] usb 1-1: Manufacturer: syz [ 95.008899][ T119] usb 1-1: config 0 descriptor?? [ 95.059996][ T119] r8712u: register rtl8712_netdev_ops to netdev_ops [ 95.066741][ T119] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 95.144571][ T5] cfg80211: failed to load regulatory.db executing program [ 95.293575][ T119] ===================================================== [ 95.300617][ T119] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 95.306978][ T119] string+0x4ec/0x6f0 [ 95.310995][ T119] vsnprintf+0x2222/0x3650 [ 95.315449][ T119] pointer+0x1844/0x2060 [ 95.319709][ T119] vsnprintf+0x1a9b/0x3650 [ 95.324153][ T119] vprintk_store+0x537/0x2150 [ 95.328950][ T119] vprintk_emit+0x25c/0x950 [ 95.333660][ T119] dev_vprintk_emit+0x5ef/0x6d0 [ 95.338527][ T119] dev_printk_emit+0x1dd/0x21f [ 95.343302][ T119] __dev_printk+0x3be/0x440 [ 95.347821][ T119] _dev_info+0x1ea/0x22f [ 95.352089][ T119] r871xu_drv_init+0x1929/0x30a0 [ 95.357105][ T119] usb_probe_interface+0xf19/0x1600 [ 95.362329][ T119] really_probe+0x67d/0x1510 [ 95.366944][ T119] __driver_probe_device+0x3e9/0x530 [ 95.372249][ T119] __device_attach_driver+0x79f/0x1120 [ 95.377729][ T119] bus_for_each_drv+0x2d6/0x3f0 [ 95.382632][ T119] __device_attach+0x593/0x8e0 [ 95.387412][ T119] device_initial_probe+0x4a/0x60 [ 95.392462][ T119] bus_probe_device+0x17b/0x3e0 [ 95.397327][ T119] device_add+0x1d3e/0x2400 [ 95.401944][ T119] usb_set_configuration+0x37e9/0x3ed0 [ 95.407438][ T119] usb_generic_driver_probe+0x13c/0x300 [ 95.413003][ T119] usb_probe_device+0x309/0x570 [ 95.417879][ T119] really_probe+0x67d/0x1510 [ 95.422496][ T119] __driver_probe_device+0x3e9/0x530 [ 95.427804][ T119] __device_attach_driver+0x79f/0x1120 [ 95.433282][ T119] bus_for_each_drv+0x2d6/0x3f0 [ 95.438150][ T119] __device_attach+0x593/0x8e0 [ 95.442950][ T119] device_initial_probe+0x4a/0x60 [ 95.447996][ T119] bus_probe_device+0x17b/0x3e0 [ 95.452866][ T119] device_add+0x1d3e/0x2400 [ 95.457379][ T119] usb_new_device+0x1b8e/0x2950 [ 95.462251][ T119] hub_event+0x5ad2/0x8910 [ 95.466687][ T119] process_one_work+0xdb9/0x1820 [ 95.471650][ T119] worker_thread+0x10bc/0x21f0 [ 95.476463][ T119] kthread+0x721/0x850 [ 95.480542][ T119] ret_from_fork+0x1f/0x30 [ 95.484972][ T119] [ 95.487307][ T119] Local variable data created at: [ 95.492332][ T119] usb_read8+0x5d/0x130 [ 95.496506][ T119] r8712_read8+0xa5/0xd0 [ 95.500772][ T119] [ 95.503089][ T119] CPU: 1 PID: 119 Comm: kworker/1:2 Not tainted 5.16.0-rc5-syzkaller #0 [ 95.511526][ T119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.521600][ T119] Workqueue: usb_hub_wq hub_event [ 95.526658][ T119] ===================================================== [ 95.533579][ T119] Disabling lock debugging due to kernel taint [ 95.539722][ T119] Kernel panic - not syncing: kmsan.panic set ... [ 95.546133][ T119] CPU: 1 PID: 119 Comm: kworker/1:2 Tainted: G B 5.16.0-rc5-syzkaller #0 [ 95.555864][ T119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.565943][ T119] Workqueue: usb_hub_wq hub_event [ 95.570999][ T119] Call Trace: [ 95.574291][ T119] [ 95.577243][ T119] dump_stack_lvl+0x1ff/0x28e [ 95.581940][ T119] dump_stack+0x25/0x28 [ 95.586109][ T119] panic+0x487/0xe1f [ 95.590049][ T119] ? add_taint+0x181/0x210 [ 95.594474][ T119] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 95.600304][ T119] kmsan_report+0x2e6/0x2f0 [ 95.604842][ T119] ? __msan_warning+0xb8/0x130 [ 95.609624][ T119] ? string+0x4ec/0x6f0 [ 95.613791][ T119] ? vsnprintf+0x2222/0x3650 [ 95.618392][ T119] ? pointer+0x1844/0x2060 [ 95.622823][ T119] ? vsnprintf+0x1a9b/0x3650 [ 95.627427][ T119] ? vprintk_store+0x537/0x2150 [ 95.632305][ T119] ? vprintk_emit+0x25c/0x950 [ 95.637013][ T119] ? dev_vprintk_emit+0x5ef/0x6d0 [ 95.642044][ T119] ? dev_printk_emit+0x1dd/0x21f [ 95.646989][ T119] ? __dev_printk+0x3be/0x440 [ 95.651679][ T119] ? _dev_info+0x1ea/0x22f [ 95.656105][ T119] ? r871xu_drv_init+0x1929/0x30a0 [ 95.661242][ T119] ? usb_probe_interface+0xf19/0x1600 [ 95.666632][ T119] ? really_probe+0x67d/0x1510 [ 95.671415][ T119] ? __driver_probe_device+0x3e9/0x530 [ 95.676896][ T119] ? __device_attach_driver+0x79f/0x1120 [ 95.682556][ T119] ? bus_for_each_drv+0x2d6/0x3f0 [ 95.687613][ T119] ? __device_attach+0x593/0x8e0 [ 95.692567][ T119] ? device_initial_probe+0x4a/0x60 [ 95.697786][ T119] ? bus_probe_device+0x17b/0x3e0 [ 95.702840][ T119] ? device_add+0x1d3e/0x2400 [ 95.707526][ T119] ? usb_set_configuration+0x37e9/0x3ed0 [ 95.713192][ T119] ? usb_generic_driver_probe+0x13c/0x300 [ 95.718930][ T119] ? usb_probe_device+0x309/0x570 [ 95.723979][ T119] ? really_probe+0x67d/0x1510 [ 95.728762][ T119] ? __driver_probe_device+0x3e9/0x530 [ 95.734240][ T119] ? __device_attach_driver+0x79f/0x1120 [ 95.739905][ T119] ? bus_for_each_drv+0x2d6/0x3f0 [ 95.744944][ T119] ? __device_attach+0x593/0x8e0 [ 95.749895][ T119] ? device_initial_probe+0x4a/0x60 [ 95.755110][ T119] ? bus_probe_device+0x17b/0x3e0 [ 95.760156][ T119] ? device_add+0x1d3e/0x2400 [ 95.764840][ T119] ? usb_new_device+0x1b8e/0x2950 [ 95.769892][ T119] ? hub_event+0x5ad2/0x8910 [ 95.774512][ T119] ? process_one_work+0xdb9/0x1820 [ 95.779662][ T119] ? worker_thread+0x10bc/0x21f0 [ 95.784626][ T119] ? kthread+0x721/0x850 [ 95.788884][ T119] ? ret_from_fork+0x1f/0x30 [ 95.793492][ T119] ? kmsan_get_metadata+0x33/0x220 [ 95.798621][ T119] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 95.804884][ T119] ? kmsan_get_metadata+0x33/0x220 [ 95.810014][ T119] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.815842][ T119] __msan_warning+0xb8/0x130 [ 95.820446][ T119] string+0x4ec/0x6f0 [ 95.824459][ T119] vsnprintf+0x2222/0x3650 [ 95.828926][ T119] pointer+0x1844/0x2060 [ 95.833189][ T119] ? kmsan_get_metadata+0x33/0x220 [ 95.838329][ T119] vsnprintf+0x1a9b/0x3650 [ 95.842794][ T119] vprintk_store+0x537/0x2150 [ 95.847490][ T119] ? vsnprintf+0x355b/0x3650 [ 95.852180][ T119] ? snprintf+0x24a/0x290 [ 95.856545][ T119] vprintk_emit+0x25c/0x950 [ 95.861105][ T119] dev_vprintk_emit+0x5ef/0x6d0 [ 95.866010][ T119] dev_printk_emit+0x1dd/0x21f [ 95.870798][ T119] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 95.876642][ T119] __dev_printk+0x3be/0x440 [ 95.881169][ T119] _dev_info+0x1ea/0x22f [ 95.885443][ T119] ? usb_read8+0xe7/0x130 [ 95.889797][ T119] ? r871xu_drv_init+0x185e/0x30a0 [ 95.894963][ T119] ? r8712_read8+0xa5/0xd0 [ 95.899408][ T119] r871xu_drv_init+0x1929/0x30a0 [ 95.904378][ T119] ? common_interrupt+0x69/0xd0 [ 95.909274][ T119] ? r871x_dev_unload+0x310/0x310 [ 95.914332][ T119] usb_probe_interface+0xf19/0x1600 [ 95.919576][ T119] ? kmsan_get_metadata+0x33/0x220 [ 95.924717][ T119] ? usb_register_driver+0x900/0x900 [ 95.930051][ T119] really_probe+0x67d/0x1510 [ 95.934664][ T119] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 95.940754][ T119] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.946589][ T119] __driver_probe_device+0x3e9/0x530 [ 95.951902][ T119] __device_attach_driver+0x79f/0x1120 [ 95.957398][ T119] bus_for_each_drv+0x2d6/0x3f0 [ 95.962307][ T119] ? deferred_probe_work_func+0x4c0/0x4c0 [ 95.968058][ T119] __device_attach+0x593/0x8e0 [ 95.972867][ T119] ? cgroup_bpf_attach+0xe1/0x2640 [ 95.977999][ T119] device_initial_probe+0x4a/0x60 [ 95.983045][ T119] bus_probe_device+0x17b/0x3e0 [ 95.987934][ T119] device_add+0x1d3e/0x2400 [ 95.992469][ T119] usb_set_configuration+0x37e9/0x3ed0 [ 95.997951][ T119] ? usb_set_configuration+0xb81/0x3ed0 [ 96.003547][ T119] ? usb_choose_configuration+0xcbb/0xf90 [ 96.009303][ T119] usb_generic_driver_probe+0x13c/0x300 [ 96.014863][ T119] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 96.020694][ T119] ? usb_choose_configuration+0xf90/0xf90 [ 96.026437][ T119] usb_probe_device+0x309/0x570 [ 96.031309][ T119] ? kmsan_get_metadata+0x33/0x220 [ 96.036451][ T119] ? usb_register_device_driver+0x580/0x580 [ 96.042384][ T119] really_probe+0x67d/0x1510 [ 96.047008][ T119] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 96.053130][ T119] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 96.058977][ T119] __driver_probe_device+0x3e9/0x530 [ 96.064305][ T119] __device_attach_driver+0x79f/0x1120 [ 96.069814][ T119] bus_for_each_drv+0x2d6/0x3f0 [ 96.074690][ T119] ? deferred_probe_work_func+0x4c0/0x4c0 [ 96.080450][ T119] __device_attach+0x593/0x8e0 [ 96.085250][ T119] ? cgroup_bpf_attach+0xe1/0x2640 [ 96.090474][ T119] device_initial_probe+0x4a/0x60 [ 96.095524][ T119] bus_probe_device+0x17b/0x3e0 [ 96.100397][ T119] device_add+0x1d3e/0x2400 [ 96.104919][ T119] usb_new_device+0x1b8e/0x2950 [ 96.109810][ T119] hub_event+0x5ad2/0x8910 [ 96.114294][ T119] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 96.120241][ T119] ? led_work+0x7b0/0x7b0 [ 96.124594][ T119] ? led_work+0x7b0/0x7b0 [ 96.128945][ T119] process_one_work+0xdb9/0x1820 [ 96.133921][ T119] worker_thread+0x10bc/0x21f0 [ 96.138727][ T119] kthread+0x721/0x850 [ 96.142854][ T119] ? worker_clr_flags+0x370/0x370 [ 96.147911][ T119] ? kthread_blkcg+0x120/0x120 [ 96.152695][ T119] ret_from_fork+0x1f/0x30 [ 96.157138][ T119] [ 96.160361][ T119] Kernel Offset: disabled [ 96.164694][ T119] Rebooting in 86400 seconds..