[?25l[?1c7[ ok 8[?25h[?0c. [ 68.895733][ T31] audit: type=1800 audit(1562578972.945:25): pid=10953 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 68.919155][ T31] audit: type=1800 audit(1562578972.965:26): pid=10953 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 68.952507][ T31] audit: type=1800 audit(1562578972.995:27): pid=10953 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.223' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 80.371901][ T3095] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 80.731918][ T3095] usb 1-1: config 0 has an invalid interface number: 70 but max is 0 [ 80.740279][ T3095] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 80.750542][ T3095] usb 1-1: config 0 has no interface number 0 [ 80.756741][ T3095] usb 1-1: config 0 interface 70 altsetting 0 endpoint 0x3 has an invalid bInterval 0, changing to 10 [ 80.767837][ T3095] usb 1-1: New USB device found, idVendor=0b48, idProduct=1008, bcdDevice=69.06 [ 80.776966][ T3095] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 80.786711][ T3095] usb 1-1: config 0 descriptor?? [ 80.835481][ T3095] ================================================================== [ 80.843600][ T3095] BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x7ef/0x1f50 [ 80.851324][ T3095] CPU: 1 PID: 3095 Comm: kworker/1:2 Not tainted 5.2.0-rc4+ #10 [ 80.859019][ T3095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.869104][ T3095] Workqueue: usb_hub_wq hub_event [ 80.874107][ T3095] Call Trace: [ 80.877383][ T3095] dump_stack+0x191/0x1f0 [ 80.881717][ T3095] kmsan_report+0x162/0x2d0 [ 80.886232][ T3095] kmsan_internal_check_memory+0x974/0xa80 [ 80.892107][ T3095] ? process_one_work+0x1572/0x1f00 [ 80.897292][ T3095] ? worker_thread+0x111b/0x2460 [ 80.902216][ T3095] ? kthread+0x4b5/0x4f0 [ 80.906439][ T3095] ? ret_from_fork+0x35/0x40 [ 80.911016][ T3095] ? __device_attach+0x489/0x750 [ 80.915938][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 80.921817][ T3095] kmsan_handle_urb+0x28/0x40 [ 80.926495][ T3095] usb_submit_urb+0x7ef/0x1f50 [ 80.931520][ T3095] usb_start_wait_urb+0x143/0x410 [ 80.936541][ T3095] usb_bulk_msg+0x811/0x920 [ 80.941160][ T3095] ttusb_dec_send_command+0x47d/0xd50 [ 80.946573][ T3095] ttusb_dec_probe+0xe31/0x4df0 [ 80.951419][ T3095] ? __pm_runtime_set_status+0xfce/0x1400 [ 80.957138][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 80.963015][ T3095] ? saa7134_go7007_s_std+0x30/0x30 [ 80.968207][ T3095] ? saa7134_go7007_s_std+0x30/0x30 [ 80.973393][ T3095] usb_probe_interface+0xd19/0x1310 [ 80.978576][ T3095] ? usb_register_driver+0x7d0/0x7d0 [ 80.983849][ T3095] really_probe+0x1344/0x1d90 [ 80.988600][ T3095] driver_probe_device+0x1ba/0x510 [ 80.993714][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 80.999592][ T3095] __device_attach_driver+0x5b8/0x790 [ 81.004977][ T3095] bus_for_each_drv+0x28e/0x3b0 [ 81.009811][ T3095] ? deferred_probe_work_func+0x400/0x400 [ 81.015606][ T3095] __device_attach+0x489/0x750 [ 81.020379][ T3095] device_initial_probe+0x4a/0x60 [ 81.025386][ T3095] bus_probe_device+0x131/0x390 [ 81.030224][ T3095] device_add+0x25b5/0x2df0 [ 81.034727][ T3095] usb_set_configuration+0x309f/0x3710 [ 81.040188][ T3095] generic_probe+0xe7/0x280 [ 81.044672][ T3095] ? usb_choose_configuration+0xae0/0xae0 [ 81.050636][ T3095] usb_probe_device+0x146/0x200 [ 81.055479][ T3095] ? usb_register_device_driver+0x470/0x470 [ 81.061372][ T3095] really_probe+0x1344/0x1d90 [ 81.066043][ T3095] driver_probe_device+0x1ba/0x510 [ 81.071135][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 81.077189][ T3095] __device_attach_driver+0x5b8/0x790 [ 81.082639][ T3095] bus_for_each_drv+0x28e/0x3b0 [ 81.087473][ T3095] ? deferred_probe_work_func+0x400/0x400 [ 81.093178][ T3095] __device_attach+0x489/0x750 [ 81.097927][ T3095] device_initial_probe+0x4a/0x60 [ 81.102955][ T3095] bus_probe_device+0x131/0x390 [ 81.107906][ T3095] device_add+0x25b5/0x2df0 [ 81.112404][ T3095] usb_new_device+0x23e5/0x2fb0 [ 81.117630][ T3095] hub_event+0x5853/0x7320 [ 81.122086][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 81.127967][ T3095] ? led_work+0x720/0x720 [ 81.132273][ T3095] ? led_work+0x720/0x720 [ 81.136604][ T3095] process_one_work+0x1572/0x1f00 [ 81.141721][ T3095] worker_thread+0x111b/0x2460 [ 81.146486][ T3095] kthread+0x4b5/0x4f0 [ 81.150536][ T3095] ? process_one_work+0x1f00/0x1f00 [ 81.155722][ T3095] ? kthread_blkcg+0xf0/0xf0 [ 81.160298][ T3095] ret_from_fork+0x35/0x40 [ 81.164709][ T3095] [ 81.167027][ T3095] Uninit was created at: [ 81.171269][ T3095] kmsan_internal_poison_shadow+0x53/0xa0 [ 81.176970][ T3095] kmsan_kmalloc+0xa4/0x130 [ 81.181471][ T3095] kmem_cache_alloc_trace+0x503/0xae0 [ 81.186829][ T3095] ttusb_dec_send_command+0x155/0xd50 [ 81.192278][ T3095] ttusb_dec_probe+0xe31/0x4df0 [ 81.197134][ T3095] usb_probe_interface+0xd19/0x1310 [ 81.202312][ T3095] really_probe+0x1344/0x1d90 [ 81.206963][ T3095] driver_probe_device+0x1ba/0x510 [ 81.212072][ T3095] __device_attach_driver+0x5b8/0x790 [ 81.217427][ T3095] bus_for_each_drv+0x28e/0x3b0 [ 81.222253][ T3095] __device_attach+0x489/0x750 [ 81.226992][ T3095] device_initial_probe+0x4a/0x60 [ 81.232011][ T3095] bus_probe_device+0x131/0x390 [ 81.236862][ T3095] device_add+0x25b5/0x2df0 [ 81.241345][ T3095] usb_set_configuration+0x309f/0x3710 [ 81.246790][ T3095] generic_probe+0xe7/0x280 [ 81.251268][ T3095] usb_probe_device+0x146/0x200 [ 81.256104][ T3095] really_probe+0x1344/0x1d90 [ 81.260765][ T3095] driver_probe_device+0x1ba/0x510 [ 81.265857][ T3095] __device_attach_driver+0x5b8/0x790 [ 81.271213][ T3095] bus_for_each_drv+0x28e/0x3b0 [ 81.276044][ T3095] __device_attach+0x489/0x750 [ 81.280788][ T3095] device_initial_probe+0x4a/0x60 [ 81.285802][ T3095] bus_probe_device+0x131/0x390 [ 81.290646][ T3095] device_add+0x25b5/0x2df0 [ 81.295128][ T3095] usb_new_device+0x23e5/0x2fb0 [ 81.300050][ T3095] hub_event+0x5853/0x7320 [ 81.304556][ T3095] process_one_work+0x1572/0x1f00 [ 81.309556][ T3095] worker_thread+0x111b/0x2460 [ 81.314321][ T3095] kthread+0x4b5/0x4f0 [ 81.318368][ T3095] ret_from_fork+0x35/0x40 [ 81.322770][ T3095] [ 81.325088][ T3095] Bytes 4-63 of 64 are uninitialized [ 81.330353][ T3095] Memory access of size 64 starts at ffff8880ba4efac0 [ 81.337087][ T3095] ================================================================== [ 81.345229][ T3095] Disabling lock debugging due to kernel taint [ 81.351373][ T3095] Kernel panic - not syncing: panic_on_warn set ... [ 81.357944][ T3095] CPU: 1 PID: 3095 Comm: kworker/1:2 Tainted: G B 5.2.0-rc4+ #10 [ 81.366945][ T3095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.377099][ T3095] Workqueue: usb_hub_wq hub_event [ 81.382137][ T3095] Call Trace: [ 81.385444][ T3095] dump_stack+0x191/0x1f0 [ 81.389763][ T3095] panic+0x3c9/0xc1e [ 81.393694][ T3095] kmsan_report+0x2ca/0x2d0 [ 81.398184][ T3095] kmsan_internal_check_memory+0x974/0xa80 [ 81.403971][ T3095] ? process_one_work+0x1572/0x1f00 [ 81.409158][ T3095] ? worker_thread+0x111b/0x2460 [ 81.414077][ T3095] ? kthread+0x4b5/0x4f0 [ 81.418314][ T3095] ? ret_from_fork+0x35/0x40 [ 81.422899][ T3095] ? __device_attach+0x489/0x750 [ 81.427992][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 81.433869][ T3095] kmsan_handle_urb+0x28/0x40 [ 81.438700][ T3095] usb_submit_urb+0x7ef/0x1f50 [ 81.443461][ T3095] usb_start_wait_urb+0x143/0x410 [ 81.448546][ T3095] usb_bulk_msg+0x811/0x920 [ 81.453075][ T3095] ttusb_dec_send_command+0x47d/0xd50 [ 81.458439][ T3095] ttusb_dec_probe+0xe31/0x4df0 [ 81.463301][ T3095] ? __pm_runtime_set_status+0xfce/0x1400 [ 81.469097][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 81.474969][ T3095] ? saa7134_go7007_s_std+0x30/0x30 [ 81.480162][ T3095] ? saa7134_go7007_s_std+0x30/0x30 [ 81.485354][ T3095] usb_probe_interface+0xd19/0x1310 [ 81.490540][ T3095] ? usb_register_driver+0x7d0/0x7d0 [ 81.495835][ T3095] really_probe+0x1344/0x1d90 [ 81.500501][ T3095] driver_probe_device+0x1ba/0x510 [ 81.505704][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 81.511582][ T3095] __device_attach_driver+0x5b8/0x790 [ 81.516947][ T3095] bus_for_each_drv+0x28e/0x3b0 [ 81.521812][ T3095] ? deferred_probe_work_func+0x400/0x400 [ 81.527516][ T3095] __device_attach+0x489/0x750 [ 81.532267][ T3095] device_initial_probe+0x4a/0x60 [ 81.537272][ T3095] bus_probe_device+0x131/0x390 [ 81.542148][ T3095] device_add+0x25b5/0x2df0 [ 81.546643][ T3095] usb_set_configuration+0x309f/0x3710 [ 81.552122][ T3095] generic_probe+0xe7/0x280 [ 81.557212][ T3095] ? usb_choose_configuration+0xae0/0xae0 [ 81.562912][ T3095] usb_probe_device+0x146/0x200 [ 81.567767][ T3095] ? usb_register_device_driver+0x470/0x470 [ 81.573661][ T3095] really_probe+0x1344/0x1d90 [ 81.578350][ T3095] driver_probe_device+0x1ba/0x510 [ 81.583446][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 81.589343][ T3095] __device_attach_driver+0x5b8/0x790 [ 81.594721][ T3095] bus_for_each_drv+0x28e/0x3b0 [ 81.599550][ T3095] ? deferred_probe_work_func+0x400/0x400 [ 81.605252][ T3095] __device_attach+0x489/0x750 [ 81.610107][ T3095] device_initial_probe+0x4a/0x60 [ 81.615132][ T3095] bus_probe_device+0x131/0x390 [ 81.619969][ T3095] device_add+0x25b5/0x2df0 [ 81.624483][ T3095] usb_new_device+0x23e5/0x2fb0 [ 81.629325][ T3095] hub_event+0x5853/0x7320 [ 81.633848][ T3095] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 81.639735][ T3095] ? led_work+0x720/0x720 [ 81.644049][ T3095] ? led_work+0x720/0x720 [ 81.648385][ T3095] process_one_work+0x1572/0x1f00 [ 81.653511][ T3095] worker_thread+0x111b/0x2460 [ 81.658272][ T3095] kthread+0x4b5/0x4f0 [ 81.662326][ T3095] ? process_one_work+0x1f00/0x1f00 [ 81.667509][ T3095] ? kthread_blkcg+0xf0/0xf0 [ 81.672091][ T3095] ret_from_fork+0x35/0x40 [ 81.677645][ T3095] Kernel Offset: disabled [ 81.681981][ T3095] Rebooting in 86400 seconds..