Warning: Permanently added '10.128.0.96' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 143.252470][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 143.612551][ T17] usb 1-1: New USB device found, idVendor=09c0, idProduct=0201, bcdDevice=cc.5e [ 143.626609][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 143.639353][ T17] usb 1-1: config 0 descriptor?? [ 143.688456][ T17] dvb-usb: found a 'Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver' in warm state. executing program [ 143.892517][ T17] gp8psk: usb in 128 operation failed. [ 143.898093][ T17] ===================================================== [ 143.905080][ T17] BUG: KMSAN: uninit-value in gp8psk_power_ctrl+0x4dc/0x1740 [ 143.912506][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.10.0-rc4-syzkaller #0 [ 143.921197][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.931381][ T17] Workqueue: usb_hub_wq hub_event [ 143.936457][ T17] Call Trace: [ 143.939776][ T17] dump_stack+0x21c/0x280 [ 143.944137][ T17] kmsan_report+0xfb/0x1e0 [ 143.948586][ T17] __msan_warning+0x5f/0xa0 [ 143.953117][ T17] gp8psk_power_ctrl+0x4dc/0x1740 [ 143.958164][ T17] ? __kmalloc+0x397/0x550 [ 143.962602][ T17] ? gp8psk_frontend_attach+0x360/0x360 [ 143.968156][ T17] dvb_usb_device_init+0x1700/0x3370 [ 143.973553][ T17] gp8psk_usb_probe+0xa2/0x1a0 [ 143.978336][ T17] ? vp702x_fe_refresh_state+0x580/0x580 [ 143.983983][ T17] usb_probe_interface+0xfcc/0x1520 [ 143.989202][ T17] ? usb_register_driver+0x900/0x900 [ 143.994506][ T17] really_probe+0xebd/0x2420 [ 143.999144][ T17] driver_probe_device+0x29d/0x3a0 [ 144.004307][ T17] __device_attach_driver+0x63f/0x830 [ 144.009727][ T17] bus_for_each_drv+0x2c8/0x3f0 [ 144.014702][ T17] ? state_synced_show+0x130/0x130 [ 144.019858][ T17] __device_attach+0x56a/0x890 [ 144.024750][ T17] device_initial_probe+0x4a/0x60 [ 144.029822][ T17] bus_probe_device+0x17e/0x3d0 [ 144.034704][ T17] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.040544][ T17] device_add+0x397e/0x3f00 [ 144.045094][ T17] usb_set_configuration+0x39a2/0x4000 [ 144.050595][ T17] ? usb_set_configuration+0xa71/0x4000 [ 144.056783][ T17] ? usb_choose_configuration+0xc3f/0xee0 [ 144.062543][ T17] usb_generic_driver_probe+0x138/0x300 [ 144.068211][ T17] ? usb_choose_configuration+0xee0/0xee0 [ 144.073962][ T17] usb_probe_device+0x317/0x570 [ 144.078858][ T17] ? usb_register_device_driver+0x590/0x590 [ 144.084781][ T17] really_probe+0xebd/0x2420 [ 144.089401][ T17] driver_probe_device+0x29d/0x3a0 [ 144.094583][ T17] __device_attach_driver+0x63f/0x830 [ 144.099989][ T17] bus_for_each_drv+0x2c8/0x3f0 [ 144.104869][ T17] ? state_synced_show+0x130/0x130 [ 144.110022][ T17] __device_attach+0x56a/0x890 [ 144.114820][ T17] device_initial_probe+0x4a/0x60 [ 144.119895][ T17] bus_probe_device+0x17e/0x3d0 [ 144.124764][ T17] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.130576][ T17] device_add+0x397e/0x3f00 [ 144.135093][ T17] usb_new_device+0x1bd4/0x2a30 [ 144.140045][ T17] hub_event+0x5b99/0x8870 [ 144.144482][ T17] ? kmsan_get_metadata+0x116/0x180 [ 144.149686][ T17] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.155768][ T17] ? led_work+0x780/0x780 [ 144.160110][ T17] process_one_work+0x1219/0x1fe0 [ 144.165152][ T17] worker_thread+0x123c/0x2730 [ 144.169951][ T17] kthread+0x51c/0x560 [ 144.174034][ T17] ? process_one_work+0x1fe0/0x1fe0 [ 144.179244][ T17] ? kthread_blkcg+0x110/0x110 [ 144.184038][ T17] ret_from_fork+0x1f/0x30 [ 144.188450][ T17] [ 144.190775][ T17] Local variable ----status@gp8psk_power_ctrl created at: [ 144.197904][ T17] gp8psk_power_ctrl+0x62/0x1740 [ 144.202882][ T17] gp8psk_power_ctrl+0x62/0x1740 [ 144.207821][ T17] ===================================================== [ 144.214760][ T17] Disabling lock debugging due to kernel taint [ 144.221156][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 144.227774][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.10.0-rc4-syzkaller #0 [ 144.237933][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 144.248039][ T17] Workqueue: usb_hub_wq hub_event [ 144.253084][ T17] Call Trace: [ 144.256401][ T17] dump_stack+0x21c/0x280 [ 144.260770][ T17] panic+0x4c6/0xea7 [ 144.264684][ T17] ? add_taint+0x17c/0x210 [ 144.269121][ T17] kmsan_report+0x1de/0x1e0 [ 144.273640][ T17] __msan_warning+0x5f/0xa0 [ 144.278163][ T17] gp8psk_power_ctrl+0x4dc/0x1740 [ 144.283204][ T17] ? __kmalloc+0x397/0x550 [ 144.287640][ T17] ? gp8psk_frontend_attach+0x360/0x360 [ 144.293200][ T17] dvb_usb_device_init+0x1700/0x3370 [ 144.298511][ T17] gp8psk_usb_probe+0xa2/0x1a0 [ 144.303314][ T17] ? vp702x_fe_refresh_state+0x580/0x580 [ 144.308970][ T17] usb_probe_interface+0xfcc/0x1520 [ 144.314190][ T17] ? usb_register_driver+0x900/0x900 [ 144.319490][ T17] really_probe+0xebd/0x2420 [ 144.324104][ T17] driver_probe_device+0x29d/0x3a0 [ 144.329236][ T17] __device_attach_driver+0x63f/0x830 [ 144.334723][ T17] bus_for_each_drv+0x2c8/0x3f0 [ 144.340719][ T17] ? state_synced_show+0x130/0x130 [ 144.345843][ T17] __device_attach+0x56a/0x890 [ 144.350619][ T17] device_initial_probe+0x4a/0x60 [ 144.355655][ T17] bus_probe_device+0x17e/0x3d0 [ 144.360530][ T17] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.366514][ T17] device_add+0x397e/0x3f00 [ 144.371030][ T17] usb_set_configuration+0x39a2/0x4000 [ 144.376503][ T17] ? usb_set_configuration+0xa71/0x4000 [ 144.382075][ T17] ? usb_choose_configuration+0xc3f/0xee0 [ 144.387830][ T17] usb_generic_driver_probe+0x138/0x300 [ 144.393406][ T17] ? usb_choose_configuration+0xee0/0xee0 [ 144.399173][ T17] usb_probe_device+0x317/0x570 [ 144.404052][ T17] ? usb_register_device_driver+0x590/0x590 [ 144.409968][ T17] really_probe+0xebd/0x2420 [ 144.414599][ T17] driver_probe_device+0x29d/0x3a0 [ 144.419756][ T17] __device_attach_driver+0x63f/0x830 [ 144.425253][ T17] bus_for_each_drv+0x2c8/0x3f0 [ 144.430125][ T17] ? state_synced_show+0x130/0x130 [ 144.435250][ T17] __device_attach+0x56a/0x890 [ 144.440766][ T17] device_initial_probe+0x4a/0x60 [ 144.445805][ T17] bus_probe_device+0x17e/0x3d0 [ 144.450676][ T17] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.456500][ T17] device_add+0x397e/0x3f00 [ 144.461081][ T17] usb_new_device+0x1bd4/0x2a30 [ 144.465953][ T17] hub_event+0x5b99/0x8870 [ 144.471174][ T17] ? kmsan_get_metadata+0x116/0x180 [ 144.476384][ T17] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.482203][ T17] ? led_work+0x780/0x780 [ 144.486545][ T17] process_one_work+0x1219/0x1fe0 [ 144.491590][ T17] worker_thread+0x123c/0x2730 [ 144.496376][ T17] kthread+0x51c/0x560 [ 144.500464][ T17] ? process_one_work+0x1fe0/0x1fe0 [ 144.505703][ T17] ? kthread_blkcg+0x110/0x110 [ 144.510488][ T17] ret_from_fork+0x1f/0x30 [ 144.515325][ T17] Kernel Offset: disabled [ 144.520184][ T17] Rebooting in 86400 seconds..