[ 102.400261][ T30] audit: type=1800 audit(1563960789.448:25): pid=12240 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 102.441851][ T30] audit: type=1800 audit(1563960789.478:26): pid=12240 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 102.462158][ T30] audit: type=1800 audit(1563960789.488:27): pid=12240 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. [ 103.676456][T12304] sshd (12304) used greatest stack depth: 54352 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 121.221935][ T17] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 121.622073][ T17] usb 1-1: unable to get BOS descriptor or descriptor too short [ 121.822065][ T17] usb 1-1: config 255 has an invalid interface number: 1 but max is 0 [ 121.830403][ T17] usb 1-1: config 255 has an invalid interface number: 210 but max is 0 [ 121.838942][ T17] usb 1-1: config 255 has 2 interfaces, different from the descriptor's value: 1 [ 121.848295][ T17] usb 1-1: config 255 has no interface number 0 [ 121.854767][ T17] usb 1-1: config 255 interface 1 altsetting 32 has 0 endpoint descriptors, different from the interface descriptor's value: 1 [ 121.868034][ T17] usb 1-1: too many endpoints for config 255 interface 210 altsetting 165: 119, using maximum allowed: 30 [ 121.879821][ T17] usb 1-1: config 255 interface 210 altsetting 165 has 1 endpoint descriptor, different from the interface descriptor's value: 119 [ 121.893540][ T17] usb 1-1: config 255 interface 1 has no altsetting 0 [ 121.900343][ T17] usb 1-1: config 255 interface 210 has no altsetting 0 [ 122.142047][ T17] usb 1-1: string descriptor 0 read error: -22 [ 122.148409][ T17] usb 1-1: New USB device found, idVendor=07fa, idProduct=0846, bcdDevice=56.6d [ 122.157617][ T17] usb 1-1: New USB device strings: Mfr=5, Product=127, SerialNumber=255 [ 122.206559][ T17] HFC-S_USB: probe of 1-1:255.1 failed with error -5 [ 122.213645][ T17] HFC-S USB: probing interface(1) actalt(32) minor(-1) [ 122.220647][ T17] hfc_usb: probe of 1-1:255.1 failed with error -5 [ 122.232676][ T17] ================================================================== [ 122.240775][ T17] BUG: KMSAN: uninit-value in hfcsusb_probe+0xf46/0x4db0 [ 122.247813][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.2.0+ #15 [ 122.254927][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.265000][ T17] Workqueue: usb_hub_wq hub_event [ 122.270133][ T17] Call Trace: [ 122.273548][ T17] dump_stack+0x191/0x1f0 [ 122.277886][ T17] kmsan_report+0x162/0x2d0 [ 122.282388][ T17] __msan_warning+0x75/0xe0 [ 122.286894][ T17] hfcsusb_probe+0xf46/0x4db0 [ 122.291597][ T17] ? l1oip_4bit_alloc+0x780/0x780 [ 122.296616][ T17] ? l1oip_4bit_alloc+0x780/0x780 [ 122.303029][ T17] usb_probe_interface+0xd19/0x1310 [ 122.308652][ T17] ? usb_register_driver+0x7d0/0x7d0 [ 122.314026][ T17] really_probe+0x1344/0x1d90 [ 122.318754][ T17] driver_probe_device+0x1ba/0x510 [ 122.323870][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 122.329762][ T17] __device_attach_driver+0x5b8/0x790 [ 122.335146][ T17] bus_for_each_drv+0x28e/0x3b0 [ 122.340023][ T17] ? deferred_probe_work_func+0x400/0x400 [ 122.345749][ T17] __device_attach+0x489/0x750 [ 122.350519][ T17] device_initial_probe+0x4a/0x60 [ 122.355538][ T17] bus_probe_device+0x131/0x390 [ 122.360389][ T17] device_add+0x25b5/0x2df0 [ 122.364988][ T17] usb_set_configuration+0x309f/0x3710 [ 122.370678][ T17] generic_probe+0xe7/0x280 [ 122.375196][ T17] ? usb_choose_configuration+0xae0/0xae0 [ 122.380920][ T17] usb_probe_device+0x146/0x200 [ 122.385763][ T17] ? usb_register_device_driver+0x470/0x470 [ 122.391649][ T17] really_probe+0x1344/0x1d90 [ 122.396373][ T17] driver_probe_device+0x1ba/0x510 [ 122.401496][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 122.407384][ T17] __device_attach_driver+0x5b8/0x790 [ 122.412865][ T17] bus_for_each_drv+0x28e/0x3b0 [ 122.417711][ T17] ? deferred_probe_work_func+0x400/0x400 [ 122.423431][ T17] __device_attach+0x489/0x750 [ 122.428251][ T17] device_initial_probe+0x4a/0x60 [ 122.433424][ T17] bus_probe_device+0x131/0x390 [ 122.438281][ T17] device_add+0x25b5/0x2df0 [ 122.442807][ T17] usb_new_device+0x23e5/0x2fb0 [ 122.447678][ T17] hub_event+0x5853/0x7320 [ 122.452144][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 122.458027][ T17] ? led_work+0x720/0x720 [ 122.462347][ T17] ? led_work+0x720/0x720 [ 122.466673][ T17] process_one_work+0x1572/0x1f00 [ 122.471729][ T17] worker_thread+0x111b/0x2460 [ 122.476533][ T17] kthread+0x4b5/0x4f0 [ 122.480591][ T17] ? process_one_work+0x1f00/0x1f00 [ 122.485798][ T17] ? kthread_blkcg+0xf0/0xf0 [ 122.490385][ T17] ret_from_fork+0x35/0x40 [ 122.494800][ T17] [ 122.497113][ T17] Local variable description: ----bookmark@__wake_up_common_lock [ 122.504841][ T17] Variable was created at: [ 122.509297][ T17] __wake_up_common_lock+0xa2/0x3a0 [ 122.514528][ T17] __wake_up_sync_key+0xcf/0x120 [ 122.519481][ T17] ================================================================== [ 122.527524][ T17] Disabling lock debugging due to kernel taint [ 122.533756][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 122.540335][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.2.0+ #15 [ 122.548814][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.558870][ T17] Workqueue: usb_hub_wq hub_event [ 122.563883][ T17] Call Trace: [ 122.567171][ T17] dump_stack+0x191/0x1f0 [ 122.571607][ T17] panic+0x3c9/0xc1e [ 122.575728][ T17] kmsan_report+0x2ca/0x2d0 [ 122.580245][ T17] __msan_warning+0x75/0xe0 [ 122.584752][ T17] hfcsusb_probe+0xf46/0x4db0 [ 122.589639][ T17] ? l1oip_4bit_alloc+0x780/0x780 [ 122.594664][ T17] ? l1oip_4bit_alloc+0x780/0x780 [ 122.599702][ T17] usb_probe_interface+0xd19/0x1310 [ 122.604916][ T17] ? usb_register_driver+0x7d0/0x7d0 [ 122.610190][ T17] really_probe+0x1344/0x1d90 [ 122.615043][ T17] driver_probe_device+0x1ba/0x510 [ 122.620155][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 122.626046][ T17] __device_attach_driver+0x5b8/0x790 [ 122.631461][ T17] bus_for_each_drv+0x28e/0x3b0 [ 122.636308][ T17] ? deferred_probe_work_func+0x400/0x400 [ 122.642028][ T17] __device_attach+0x489/0x750 [ 122.646939][ T17] device_initial_probe+0x4a/0x60 [ 122.651975][ T17] bus_probe_device+0x131/0x390 [ 122.656826][ T17] device_add+0x25b5/0x2df0 [ 122.661357][ T17] usb_set_configuration+0x309f/0x3710 [ 122.666912][ T17] generic_probe+0xe7/0x280 [ 122.671458][ T17] ? usb_choose_configuration+0xae0/0xae0 [ 122.677266][ T17] usb_probe_device+0x146/0x200 [ 122.682117][ T17] ? usb_register_device_driver+0x470/0x470 [ 122.688209][ T17] really_probe+0x1344/0x1d90 [ 122.692893][ T17] driver_probe_device+0x1ba/0x510 [ 122.698003][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 122.703899][ T17] __device_attach_driver+0x5b8/0x790 [ 122.709273][ T17] bus_for_each_drv+0x28e/0x3b0 [ 122.714116][ T17] ? deferred_probe_work_func+0x400/0x400 [ 122.719835][ T17] __device_attach+0x489/0x750 [ 122.724605][ T17] device_initial_probe+0x4a/0x60 [ 122.729626][ T17] bus_probe_device+0x131/0x390 [ 122.734481][ T17] device_add+0x25b5/0x2df0 [ 122.739048][ T17] usb_new_device+0x23e5/0x2fb0 [ 122.743964][ T17] hub_event+0x5853/0x7320 [ 122.748443][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 122.754325][ T17] ? led_work+0x720/0x720 [ 122.758641][ T17] ? led_work+0x720/0x720 [ 122.763064][ T17] process_one_work+0x1572/0x1f00 [ 122.768154][ T17] worker_thread+0x111b/0x2460 [ 122.773009][ T17] kthread+0x4b5/0x4f0 [ 122.777072][ T17] ? process_one_work+0x1f00/0x1f00 [ 122.782268][ T17] ? kthread_blkcg+0xf0/0xf0 [ 122.786853][ T17] ret_from_fork+0x35/0x40 [ 122.792285][ T17] Kernel Offset: disabled [ 122.796619][ T17] Rebooting in 86400 seconds..