forked to background, child pid 3056 no interfaces have a carrier [ 68.362019][ T3057] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.383430][ T3057] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 95.123454][ T1447] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.219' (ECDSA) to the list of known hosts. executing program [ 95.882188][ T116] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 96.242381][ T116] usb 1-1: config 0 has an invalid interface number: 56 but max is 0 [ 96.250624][ T116] usb 1-1: config 0 contains an unexpected descriptor of type 0x2, skipping [ 96.259528][ T116] usb 1-1: config 0 has no interface number 0 [ 96.265806][ T116] usb 1-1: config 0 interface 56 altsetting 0 endpoint 0x4 has invalid maxpacket 1024, setting to 64 [ 96.276900][ T116] usb 1-1: config 0 interface 56 altsetting 0 endpoint 0xB has invalid maxpacket 1024, setting to 64 [ 96.287970][ T116] usb 1-1: config 0 interface 56 altsetting 0 endpoint 0x9 has invalid maxpacket 1023, setting to 64 [ 96.299085][ T116] usb 1-1: config 0 interface 56 altsetting 0 has an invalid endpoint with address 0x80, skipping [ 96.309877][ T116] usb 1-1: config 0 interface 56 altsetting 0 has a duplicate endpoint with address 0xE, skipping [ 96.320680][ T116] usb 1-1: config 0 interface 56 altsetting 0 has a duplicate endpoint with address 0xB, skipping [ 96.332067][ T116] usb 1-1: config 0 interface 56 altsetting 0 has a duplicate endpoint with address 0x1, skipping [ 96.343026][ T116] usb 1-1: New USB device found, idVendor=04f2, idProduct=aff2, bcdDevice=6f.de [ 96.352381][ T116] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 96.363628][ T116] usb 1-1: config 0 descriptor?? [ 96.385326][ T3477] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 96.409760][ T116] r8712u: register rtl8712_netdev_ops to netdev_ops [ 96.416571][ T116] usb 1-1: r8712u: USB_SPEED_LOW with 6 endpoints executing program [ 96.643000][ T116] ===================================================== [ 96.650029][ T116] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 [ 96.656377][ T116] string+0x4ec/0x6f0 [ 96.660493][ T116] vsnprintf+0x2222/0x3650 [ 96.664928][ T116] pointer+0x1844/0x2060 [ 96.669245][ T116] vsnprintf+0x1a9b/0x3650 [ 96.673688][ T116] vprintk_store+0x537/0x2150 [ 96.678438][ T116] vprintk_emit+0x25c/0x950 [ 96.682972][ T116] dev_vprintk_emit+0x5ef/0x6d0 [ 96.687845][ T116] dev_printk_emit+0x1dd/0x21f [ 96.692648][ T116] __dev_printk+0x3be/0x440 [ 96.697177][ T116] _dev_info+0x1ea/0x22f [ 96.701438][ T116] r871xu_drv_init+0x1929/0x30a0 [ 96.706414][ T116] usb_probe_interface+0xf19/0x1600 [ 96.711626][ T116] really_probe+0x67d/0x1510 [ 96.716233][ T116] __driver_probe_device+0x3e9/0x530 [ 96.721535][ T116] __device_attach_driver+0x79f/0x1120 [ 96.727014][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 96.731896][ T116] __device_attach+0x593/0x8e0 [ 96.736836][ T116] device_initial_probe+0x4a/0x60 [ 96.741902][ T116] bus_probe_device+0x17b/0x3e0 [ 96.746812][ T116] device_add+0x1d3e/0x2400 [ 96.751337][ T116] usb_set_configuration+0x37e9/0x3ed0 [ 96.756830][ T116] usb_generic_driver_probe+0x13c/0x300 [ 96.762427][ T116] usb_probe_device+0x309/0x570 [ 96.767308][ T116] really_probe+0x67d/0x1510 [ 96.771933][ T116] __driver_probe_device+0x3e9/0x530 [ 96.777251][ T116] __device_attach_driver+0x79f/0x1120 [ 96.782729][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 96.787607][ T116] __device_attach+0x593/0x8e0 [ 96.792405][ T116] device_initial_probe+0x4a/0x60 [ 96.797449][ T116] bus_probe_device+0x17b/0x3e0 [ 96.802328][ T116] device_add+0x1d3e/0x2400 [ 96.806872][ T116] usb_new_device+0x1b8e/0x2950 [ 96.811741][ T116] hub_event+0x5ad2/0x8910 [ 96.816171][ T116] process_one_work+0xdb9/0x1820 [ 96.821136][ T116] worker_thread+0x10bc/0x21f0 [ 96.825921][ T116] kthread+0x721/0x850 [ 96.830020][ T116] ret_from_fork+0x1f/0x30 [ 96.834458][ T116] [ 96.836788][ T116] Local variable data created at: [ 96.841811][ T116] usb_read8+0x5d/0x130 [ 96.845990][ T116] r8712_read8+0xa5/0xd0 [ 96.850271][ T116] [ 96.852936][ T116] CPU: 1 PID: 116 Comm: kworker/1:2 Not tainted 5.16.0-rc5-syzkaller #0 [ 96.861285][ T116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.871438][ T116] Workqueue: usb_hub_wq hub_event [ 96.876490][ T116] ===================================================== [ 96.883418][ T116] Disabling lock debugging due to kernel taint [ 96.889581][ T116] Kernel panic - not syncing: kmsan.panic set ... [ 96.895987][ T116] CPU: 1 PID: 116 Comm: kworker/1:2 Tainted: G B 5.16.0-rc5-syzkaller #0 [ 96.905726][ T116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.915789][ T116] Workqueue: usb_hub_wq hub_event [ 96.920837][ T116] Call Trace: [ 96.924114][ T116] [ 96.927046][ T116] dump_stack_lvl+0x1ff/0x28e [ 96.931750][ T116] dump_stack+0x25/0x28 [ 96.935927][ T116] panic+0x487/0xe1f [ 96.939844][ T116] ? add_taint+0x181/0x210 [ 96.944363][ T116] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 96.950192][ T116] kmsan_report+0x2e6/0x2f0 [ 96.954727][ T116] ? __msan_warning+0xb8/0x130 [ 96.959511][ T116] ? string+0x4ec/0x6f0 [ 96.963683][ T116] ? vsnprintf+0x2222/0x3650 [ 96.968317][ T116] ? pointer+0x1844/0x2060 [ 96.972769][ T116] ? vsnprintf+0x1a9b/0x3650 [ 96.977378][ T116] ? vprintk_store+0x537/0x2150 [ 96.982261][ T116] ? vprintk_emit+0x25c/0x950 [ 96.986961][ T116] ? dev_vprintk_emit+0x5ef/0x6d0 [ 96.992013][ T116] ? dev_printk_emit+0x1dd/0x21f [ 96.997432][ T116] ? __dev_printk+0x3be/0x440 [ 97.002137][ T116] ? _dev_info+0x1ea/0x22f [ 97.006574][ T116] ? r871xu_drv_init+0x1929/0x30a0 [ 97.011706][ T116] ? usb_probe_interface+0xf19/0x1600 [ 97.017099][ T116] ? really_probe+0x67d/0x1510 [ 97.021883][ T116] ? __driver_probe_device+0x3e9/0x530 [ 97.027382][ T116] ? __device_attach_driver+0x79f/0x1120 [ 97.033065][ T116] ? bus_for_each_drv+0x2d6/0x3f0 [ 97.038146][ T116] ? __device_attach+0x593/0x8e0 [ 97.043130][ T116] ? device_initial_probe+0x4a/0x60 [ 97.048346][ T116] ? bus_probe_device+0x17b/0x3e0 [ 97.053410][ T116] ? device_add+0x1d3e/0x2400 [ 97.058118][ T116] ? usb_set_configuration+0x37e9/0x3ed0 [ 97.063787][ T116] ? usb_generic_driver_probe+0x13c/0x300 [ 97.069572][ T116] ? usb_probe_device+0x309/0x570 [ 97.074647][ T116] ? really_probe+0x67d/0x1510 [ 97.079429][ T116] ? __driver_probe_device+0x3e9/0x530 [ 97.084910][ T116] ? __device_attach_driver+0x79f/0x1120 [ 97.090581][ T116] ? bus_for_each_drv+0x2d6/0x3f0 [ 97.095649][ T116] ? __device_attach+0x593/0x8e0 [ 97.100613][ T116] ? device_initial_probe+0x4a/0x60 [ 97.105826][ T116] ? bus_probe_device+0x17b/0x3e0 [ 97.110878][ T116] ? device_add+0x1d3e/0x2400 [ 97.115588][ T116] ? usb_new_device+0x1b8e/0x2950 [ 97.120646][ T116] ? hub_event+0x5ad2/0x8910 [ 97.125254][ T116] ? process_one_work+0xdb9/0x1820 [ 97.130400][ T116] ? worker_thread+0x10bc/0x21f0 [ 97.135367][ T116] ? kthread+0x721/0x850 [ 97.139646][ T116] ? ret_from_fork+0x1f/0x30 [ 97.144265][ T116] ? kmsan_get_metadata+0x33/0x220 [ 97.149403][ T116] ? kmsan_internal_set_shadow_origin+0x5e/0xc0 [ 97.155682][ T116] ? kmsan_get_metadata+0x33/0x220 [ 97.160836][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.166673][ T116] __msan_warning+0xb8/0x130 [ 97.171289][ T116] string+0x4ec/0x6f0 [ 97.175301][ T116] vsnprintf+0x2222/0x3650 [ 97.179754][ T116] pointer+0x1844/0x2060 [ 97.184028][ T116] ? kmsan_get_metadata+0x33/0x220 [ 97.189170][ T116] vsnprintf+0x1a9b/0x3650 [ 97.193623][ T116] vprintk_store+0x537/0x2150 [ 97.198322][ T116] ? vsnprintf+0x355b/0x3650 [ 97.202949][ T116] ? snprintf+0x24a/0x290 [ 97.207310][ T116] vprintk_emit+0x25c/0x950 [ 97.211856][ T116] dev_vprintk_emit+0x5ef/0x6d0 [ 97.216778][ T116] dev_printk_emit+0x1dd/0x21f [ 97.221706][ T116] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 97.227553][ T116] __dev_printk+0x3be/0x440 [ 97.232111][ T116] _dev_info+0x1ea/0x22f [ 97.236404][ T116] ? usb_read8+0xe7/0x130 [ 97.240751][ T116] ? r871xu_drv_init+0x185e/0x30a0 [ 97.245892][ T116] ? r8712_read8+0xa5/0xd0 [ 97.250375][ T116] r871xu_drv_init+0x1929/0x30a0 [ 97.255341][ T116] ? __pm_runtime_set_status+0x1ac6/0x1e20 [ 97.261217][ T116] ? kmsan_get_metadata+0x33/0x220 [ 97.266355][ T116] ? r871x_dev_unload+0x310/0x310 [ 97.271402][ T116] ? r871x_dev_unload+0x310/0x310 [ 97.276445][ T116] usb_probe_interface+0xf19/0x1600 [ 97.281666][ T116] ? kmsan_get_metadata+0x33/0x220 [ 97.286805][ T116] ? usb_register_driver+0x900/0x900 [ 97.292103][ T116] really_probe+0x67d/0x1510 [ 97.296734][ T116] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 97.302874][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.308713][ T116] __driver_probe_device+0x3e9/0x530 [ 97.314110][ T116] __device_attach_driver+0x79f/0x1120 [ 97.319600][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 97.324477][ T116] ? deferred_probe_work_func+0x4c0/0x4c0 [ 97.330226][ T116] __device_attach+0x593/0x8e0 [ 97.335012][ T116] ? cgroup_bpf_attach+0xe1/0x2640 [ 97.340156][ T116] device_initial_probe+0x4a/0x60 [ 97.345243][ T116] bus_probe_device+0x17b/0x3e0 [ 97.350129][ T116] device_add+0x1d3e/0x2400 [ 97.354663][ T116] usb_set_configuration+0x37e9/0x3ed0 [ 97.360166][ T116] ? usb_set_configuration+0xb31/0x3ed0 [ 97.365789][ T116] usb_generic_driver_probe+0x13c/0x300 [ 97.371380][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.377221][ T116] ? usb_choose_configuration+0xf90/0xf90 [ 97.382969][ T116] usb_probe_device+0x309/0x570 [ 97.387855][ T116] ? kmsan_get_metadata+0x33/0x220 [ 97.393001][ T116] ? usb_register_device_driver+0x580/0x580 [ 97.398933][ T116] really_probe+0x67d/0x1510 [ 97.403546][ T116] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 97.409647][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.415505][ T116] __driver_probe_device+0x3e9/0x530 [ 97.420842][ T116] __device_attach_driver+0x79f/0x1120 [ 97.426332][ T116] bus_for_each_drv+0x2d6/0x3f0 [ 97.431214][ T116] ? deferred_probe_work_func+0x4c0/0x4c0 [ 97.436964][ T116] __device_attach+0x593/0x8e0 [ 97.441754][ T116] ? cgroup_bpf_attach+0xe1/0x2640 [ 97.446892][ T116] device_initial_probe+0x4a/0x60 [ 97.451942][ T116] bus_probe_device+0x17b/0x3e0 [ 97.456864][ T116] device_add+0x1d3e/0x2400 [ 97.461408][ T116] usb_new_device+0x1b8e/0x2950 [ 97.466330][ T116] hub_event+0x5ad2/0x8910 [ 97.470813][ T116] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 97.476654][ T116] ? led_work+0x7b0/0x7b0 [ 97.481028][ T116] ? led_work+0x7b0/0x7b0 [ 97.485375][ T116] process_one_work+0xdb9/0x1820 [ 97.490362][ T116] worker_thread+0x10bc/0x21f0 [ 97.495177][ T116] kthread+0x721/0x850 [ 97.499268][ T116] ? worker_clr_flags+0x370/0x370 [ 97.504348][ T116] ? kthread_blkcg+0x120/0x120 [ 97.509153][ T116] ret_from_fork+0x1f/0x30 [ 97.513601][ T116] [ 97.516913][ T116] Kernel Offset: disabled [ 97.521272][ T116] Rebooting in 86400 seconds..