Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 149.232557][ T2079] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 149.632643][ T2079] usb 1-1: New USB device found, idVendor=09c0, idProduct=0201, bcdDevice=cc.5e [ 149.641783][ T2079] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 149.664224][ T2079] usb 1-1: config 0 descriptor?? [ 149.708771][ T2079] dvb-usb: found a 'Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver' in warm state. executing program [ 149.914287][ T2079] gp8psk: usb in 128 operation failed. [ 149.919841][ T2079] ===================================================== [ 149.926805][ T2079] BUG: KMSAN: uninit-value in gp8psk_power_ctrl+0x4dc/0x1740 [ 149.934717][ T2079] CPU: 1 PID: 2079 Comm: kworker/1:2 Not tainted 5.10.0-rc4-syzkaller #0 [ 149.943133][ T2079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.953220][ T2079] Workqueue: usb_hub_wq hub_event [ 149.958266][ T2079] Call Trace: [ 149.961576][ T2079] dump_stack+0x21c/0x280 [ 149.965921][ T2079] kmsan_report+0xfb/0x1e0 [ 149.970354][ T2079] __msan_warning+0x5f/0xa0 [ 149.974875][ T2079] gp8psk_power_ctrl+0x4dc/0x1740 [ 149.979914][ T2079] ? __kmalloc+0x397/0x550 [ 149.984351][ T2079] ? gp8psk_frontend_attach+0x360/0x360 [ 149.989911][ T2079] dvb_usb_device_init+0x1700/0x3370 [ 149.995221][ T2079] gp8psk_usb_probe+0xa2/0x1a0 [ 150.000002][ T2079] ? vp702x_fe_refresh_state+0x580/0x580 [ 150.005678][ T2079] usb_probe_interface+0xfcc/0x1520 [ 150.010891][ T2079] ? usb_register_driver+0x900/0x900 [ 150.016189][ T2079] really_probe+0xebd/0x2420 [ 150.020801][ T2079] driver_probe_device+0x29d/0x3a0 [ 150.025931][ T2079] __device_attach_driver+0x63f/0x830 [ 150.031322][ T2079] bus_for_each_drv+0x2c8/0x3f0 [ 150.036176][ T2079] ? state_synced_show+0x130/0x130 [ 150.041276][ T2079] __device_attach+0x56a/0x890 [ 150.046029][ T2079] device_initial_probe+0x4a/0x60 [ 150.051078][ T2079] bus_probe_device+0x17e/0x3d0 [ 150.055933][ T2079] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.061759][ T2079] device_add+0x397e/0x3f00 [ 150.066270][ T2079] usb_set_configuration+0x39a2/0x4000 [ 150.071719][ T2079] ? usb_set_configuration+0xb11/0x4000 [ 150.077400][ T2079] ? usb_choose_configuration+0xc3f/0xee0 [ 150.083237][ T2079] usb_generic_driver_probe+0x138/0x300 [ 150.088806][ T2079] ? usb_choose_configuration+0xee0/0xee0 [ 150.094514][ T2079] usb_probe_device+0x317/0x570 [ 150.099367][ T2079] ? usb_register_device_driver+0x590/0x590 [ 150.105259][ T2079] really_probe+0xebd/0x2420 [ 150.109839][ T2079] driver_probe_device+0x29d/0x3a0 [ 150.114958][ T2079] __device_attach_driver+0x63f/0x830 [ 150.120341][ T2079] bus_for_each_drv+0x2c8/0x3f0 [ 150.125226][ T2079] ? state_synced_show+0x130/0x130 [ 150.130342][ T2079] __device_attach+0x56a/0x890 [ 150.135146][ T2079] device_initial_probe+0x4a/0x60 [ 150.140177][ T2079] bus_probe_device+0x17e/0x3d0 [ 150.145019][ T2079] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.150812][ T2079] device_add+0x397e/0x3f00 [ 150.155318][ T2079] usb_new_device+0x1bd4/0x2a30 [ 150.160172][ T2079] hub_event+0x5b99/0x8870 [ 150.164619][ T2079] ? kmsan_get_metadata+0x116/0x180 [ 150.169814][ T2079] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.175619][ T2079] ? led_work+0x780/0x780 [ 150.179948][ T2079] process_one_work+0x1219/0x1fe0 [ 150.184963][ T2079] worker_thread+0x123c/0x2730 [ 150.189728][ T2079] kthread+0x51c/0x560 [ 150.193782][ T2079] ? process_one_work+0x1fe0/0x1fe0 [ 150.198965][ T2079] ? kthread_blkcg+0x110/0x110 [ 150.203713][ T2079] ret_from_fork+0x1f/0x30 [ 150.208114][ T2079] [ 150.210547][ T2079] Local variable ----status@gp8psk_power_ctrl created at: [ 150.217674][ T2079] gp8psk_power_ctrl+0x62/0x1740 [ 150.222624][ T2079] gp8psk_power_ctrl+0x62/0x1740 [ 150.227559][ T2079] ===================================================== [ 150.234480][ T2079] Disabling lock debugging due to kernel taint [ 150.240612][ T2079] Kernel panic - not syncing: panic_on_warn set ... [ 150.247194][ T2079] CPU: 1 PID: 2079 Comm: kworker/1:2 Tainted: G B 5.10.0-rc4-syzkaller #0 [ 150.256975][ T2079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.267066][ T2079] Workqueue: usb_hub_wq hub_event [ 150.272120][ T2079] Call Trace: [ 150.275416][ T2079] dump_stack+0x21c/0x280 [ 150.279746][ T2079] panic+0x4c6/0xea7 [ 150.283739][ T2079] ? add_taint+0x17c/0x210 [ 150.288142][ T2079] kmsan_report+0x1de/0x1e0 [ 150.292626][ T2079] __msan_warning+0x5f/0xa0 [ 150.297118][ T2079] gp8psk_power_ctrl+0x4dc/0x1740 [ 150.302139][ T2079] ? __kmalloc+0x397/0x550 [ 150.306538][ T2079] ? gp8psk_frontend_attach+0x360/0x360 [ 150.312066][ T2079] dvb_usb_device_init+0x1700/0x3370 [ 150.317337][ T2079] gp8psk_usb_probe+0xa2/0x1a0 [ 150.322087][ T2079] ? vp702x_fe_refresh_state+0x580/0x580 [ 150.327730][ T2079] usb_probe_interface+0xfcc/0x1520 [ 150.332936][ T2079] ? usb_register_driver+0x900/0x900 [ 150.338217][ T2079] really_probe+0xebd/0x2420 [ 150.342792][ T2079] driver_probe_device+0x29d/0x3a0 [ 150.347901][ T2079] __device_attach_driver+0x63f/0x830 [ 150.353304][ T2079] bus_for_each_drv+0x2c8/0x3f0 [ 150.358183][ T2079] ? state_synced_show+0x130/0x130 [ 150.363299][ T2079] __device_attach+0x56a/0x890 [ 150.368064][ T2079] device_initial_probe+0x4a/0x60 [ 150.373084][ T2079] bus_probe_device+0x17e/0x3d0 [ 150.377946][ T2079] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.383769][ T2079] device_add+0x397e/0x3f00 [ 150.388278][ T2079] usb_set_configuration+0x39a2/0x4000 [ 150.393722][ T2079] ? usb_set_configuration+0xb11/0x4000 [ 150.399271][ T2079] ? usb_choose_configuration+0xc3f/0xee0 [ 150.404993][ T2079] usb_generic_driver_probe+0x138/0x300 [ 150.410544][ T2079] ? usb_choose_configuration+0xee0/0xee0 [ 150.416248][ T2079] usb_probe_device+0x317/0x570 [ 150.421106][ T2079] ? usb_register_device_driver+0x590/0x590 [ 150.426998][ T2079] really_probe+0xebd/0x2420 [ 150.431571][ T2079] driver_probe_device+0x29d/0x3a0 [ 150.436666][ T2079] __device_attach_driver+0x63f/0x830 [ 150.442033][ T2079] bus_for_each_drv+0x2c8/0x3f0 [ 150.446864][ T2079] ? state_synced_show+0x130/0x130 [ 150.451983][ T2079] __device_attach+0x56a/0x890 [ 150.456731][ T2079] device_initial_probe+0x4a/0x60 [ 150.461755][ T2079] bus_probe_device+0x17e/0x3d0 [ 150.466589][ T2079] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.472379][ T2079] device_add+0x397e/0x3f00 [ 150.476883][ T2079] usb_new_device+0x1bd4/0x2a30 [ 150.481736][ T2079] hub_event+0x5b99/0x8870 [ 150.486140][ T2079] ? kmsan_get_metadata+0x116/0x180 [ 150.491321][ T2079] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.497107][ T2079] ? led_work+0x780/0x780 [ 150.501419][ T2079] process_one_work+0x1219/0x1fe0 [ 150.506444][ T2079] worker_thread+0x123c/0x2730 [ 150.511197][ T2079] kthread+0x51c/0x560 [ 150.515249][ T2079] ? process_one_work+0x1fe0/0x1fe0 [ 150.520438][ T2079] ? kthread_blkcg+0x110/0x110 [ 150.525207][ T2079] ret_from_fork+0x1f/0x30 [ 150.530040][ T2079] Kernel Offset: disabled [ 150.534369][ T2079] Rebooting in 86400 seconds..