[ 86.857267][ T30] audit: type=1800 audit(1559577679.917:25): pid=11759 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 86.882145][ T30] audit: type=1800 audit(1559577679.937:26): pid=11759 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 86.917543][ T30] audit: type=1800 audit(1559577679.967:27): pid=11759 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[1G[[32m ok [39;49m8[?25h[?0c. [ 88.111638][T11827] sshd (11827) used greatest stack depth: 54296 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.238' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 98.402053][ T3931] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 98.402118][ T33] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 98.422119][ T3336] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 98.429836][ T17] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 98.437872][T11923] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 98.441995][ T5] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 98.652475][ T33] usb 2-1: Using ep0 maxpacket: 32 [ 98.661993][ T3931] usb 1-1: Using ep0 maxpacket: 32 [ 98.662245][ T3336] usb 5-1: Using ep0 maxpacket: 32 [ 98.672892][ T17] usb 6-1: Using ep0 maxpacket: 32 [ 98.682090][T11923] usb 4-1: Using ep0 maxpacket: 32 [ 98.722270][ T5] usb 3-1: Using ep0 maxpacket: 32 [ 98.772244][ T33] usb 2-1: config 0 has an invalid interface number: 215 but max is 0 [ 98.780611][ T33] usb 2-1: config 0 has no interface number 0 [ 98.787026][ T33] usb 2-1: New USB device found, idVendor=07d1, idProduct=3c05, bcdDevice=e4.14 [ 98.792240][ T3931] usb 1-1: config 0 has an invalid interface number: 215 but max is 0 [ 98.796316][ T33] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.804587][ T3931] usb 1-1: config 0 has no interface number 0 [ 98.813984][ T17] usb 6-1: config 0 has an invalid interface number: 215 but max is 0 [ 98.818750][ T3931] usb 1-1: New USB device found, idVendor=07d1, idProduct=3c05, bcdDevice=e4.14 [ 98.827541][ T17] usb 6-1: config 0 has no interface number 0 [ 98.836564][ T3931] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.842753][ T17] usb 6-1: New USB device found, idVendor=07d1, idProduct=3c05, bcdDevice=e4.14 [ 98.859818][ T17] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.860982][ T3931] usb 1-1: config 0 descriptor?? [ 98.872159][T11923] usb 4-1: config 0 has an invalid interface number: 215 but max is 0 [ 98.881278][T11923] usb 4-1: config 0 has no interface number 0 [ 98.887613][T11923] usb 4-1: New USB device found, idVendor=07d1, idProduct=3c05, bcdDevice=e4.14 [ 98.892060][ T5] usb 3-1: config 0 has an invalid interface number: 215 but max is 0 [ 98.896866][T11923] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.897852][ T3336] usb 5-1: config 0 has an invalid interface number: 215 but max is 0 [ 98.905383][ T5] usb 3-1: config 0 has no interface number 0 [ 98.913456][ T3336] usb 5-1: config 0 has no interface number 0 [ 98.921683][ T5] usb 3-1: New USB device found, idVendor=07d1, idProduct=3c05, bcdDevice=e4.14 [ 98.927857][ T3336] usb 5-1: New USB device found, idVendor=07d1, idProduct=3c05, bcdDevice=e4.14 [ 98.934051][ T5] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.943154][ T3336] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.956192][ T5] usb 3-1: config 0 descriptor?? [ 98.962109][T11923] usb 4-1: config 0 descriptor?? [ 98.980390][ T33] usb 2-1: config 0 descriptor?? [ 98.986611][ T17] usb 6-1: config 0 descriptor?? [ 98.993227][ T3336] usb 5-1: config 0 descriptor?? executing program executing program [ 99.162680][ T3931] asix 1-1:0.215 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 99.173097][ T3931] asix: probe of 1-1:0.215 failed with error -71 [ 99.180185][ T3931] usb 1-1: USB disconnect, device number 2 [ 99.212541][T11923] asix 4-1:0.215 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 99.212647][ T5] asix 3-1:0.215 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 99.233207][ T5] asix: probe of 3-1:0.215 failed with error -71 [ 99.233346][T11923] asix: probe of 4-1:0.215 failed with error -71 executing program [ 99.254681][ T33] asix 2-1:0.215 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 99.265072][ T33] asix: probe of 2-1:0.215 failed with error -71 [ 99.276458][ T3336] asix 5-1:0.215 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 99.286826][ T3336] asix: probe of 5-1:0.215 failed with error -71 [ 99.297582][ T17] ================================================================== [ 99.305692][ T17] BUG: KMSAN: uninit-value in ax88772_bind+0x93d/0x11e0 executing program [ 99.312649][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.1.0+ #1 [ 99.319684][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.329762][ T17] Workqueue: usb_hub_wq hub_event [ 99.329776][ T17] Call Trace: [ 99.329818][ T17] dump_stack+0x191/0x1f0 [ 99.329855][ T17] kmsan_report+0x130/0x2a0 [ 99.329898][ T17] __msan_warning+0x75/0xe0 [ 99.338233][ T17] ax88772_bind+0x93d/0x11e0 [ 99.356151][ T17] ? ax88178_change_mtu+0x650/0x650 executing program executing program [ 99.356951][ T5] usb 3-1: USB disconnect, device number 2 [ 99.361375][ T17] usbnet_probe+0x10f5/0x3940 [ 99.361446][ T17] ? usbnet_disconnect+0x660/0x660 [ 99.361476][ T17] usb_probe_interface+0xd66/0x1320 [ 99.361553][ T17] ? usb_register_driver+0x7d0/0x7d0 [ 99.387615][ T17] really_probe+0xdae/0x1d80 [ 99.392272][ T17] driver_probe_device+0x1b3/0x4f0 [ 99.397437][ T17] __device_attach_driver+0x5b8/0x790 [ 99.397484][ T17] bus_for_each_drv+0x28e/0x3b0 [ 99.397506][ T17] ? deferred_probe_work_func+0x400/0x400 [ 99.397540][ T17] __device_attach+0x454/0x730 [ 99.397581][ T17] device_initial_probe+0x4a/0x60 [ 99.407832][ T17] bus_probe_device+0x137/0x390 [ 99.423351][ T17] device_add+0x288d/0x30e0 [ 99.423422][ T17] usb_set_configuration+0x30dc/0x3750 [ 99.423513][ T17] generic_probe+0xe7/0x280 [ 99.432885][ T17] ? usb_choose_configuration+0xae0/0xae0 [ 99.448563][ T17] usb_probe_device+0x14c/0x200 [ 99.453419][ T17] ? usb_register_device_driver+0x470/0x470 [ 99.459337][ T17] really_probe+0xdae/0x1d80 [ 99.463989][ T17] driver_probe_device+0x1b3/0x4f0 [ 99.469150][ T17] __device_attach_driver+0x5b8/0x790 [ 99.474580][ T17] bus_for_each_drv+0x28e/0x3b0 [ 99.479426][ T17] ? deferred_probe_work_func+0x400/0x400 [ 99.485161][ T17] __device_attach+0x454/0x730 [ 99.489951][ T17] device_initial_probe+0x4a/0x60 [ 99.494992][ T17] bus_probe_device+0x137/0x390 [ 99.499860][ T17] device_add+0x288d/0x30e0 [ 99.504410][ T17] usb_new_device+0x23e5/0x2ff0 [ 99.509315][ T17] hub_event+0x48d1/0x7290 [ 99.513809][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 99.519727][ T17] ? led_work+0x720/0x720 [ 99.524060][ T17] ? led_work+0x720/0x720 [ 99.528406][ T17] process_one_work+0x1572/0x1f00 [ 99.533472][ T17] worker_thread+0x111b/0x2460 [ 99.538294][ T17] kthread+0x4b5/0x4f0 [ 99.542387][ T17] ? process_one_work+0x1f00/0x1f00 [ 99.547592][ T17] ? kthread_blkcg+0xf0/0xf0 [ 99.552172][ T17] ret_from_fork+0x35/0x40 [ 99.556597][ T17] [ 99.558934][ T17] Local variable description: ----buf@ax88772_bind [ 99.565449][ T17] Variable was created at: [ 99.569889][ T17] ax88772_bind+0x5f/0x11e0 [ 99.574400][ T17] usbnet_probe+0x10f5/0x3940 [ 99.579060][ T17] ================================================================== [ 99.587127][ T17] Disabling lock debugging due to kernel taint [ 99.593277][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 99.599876][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.1.0+ #1 [ 99.608295][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.618371][ T17] Workqueue: usb_hub_wq hub_event [ 99.623398][ T17] Call Trace: [ 99.626701][ T17] dump_stack+0x191/0x1f0 [ 99.631047][ T17] panic+0x3ca/0xafe [ 99.634965][ T17] kmsan_report+0x298/0x2a0 [ 99.639478][ T17] __msan_warning+0x75/0xe0 [ 99.644013][ T17] ax88772_bind+0x93d/0x11e0 [ 99.648649][ T17] ? ax88178_change_mtu+0x650/0x650 [ 99.653858][ T17] usbnet_probe+0x10f5/0x3940 [ 99.658555][ T17] ? usbnet_disconnect+0x660/0x660 [ 99.663668][ T17] usb_probe_interface+0xd66/0x1320 [ 99.668883][ T17] ? usb_register_driver+0x7d0/0x7d0 [ 99.674198][ T17] really_probe+0xdae/0x1d80 [ 99.678852][ T17] driver_probe_device+0x1b3/0x4f0 [ 99.683991][ T17] __device_attach_driver+0x5b8/0x790 [ 99.689407][ T17] bus_for_each_drv+0x28e/0x3b0 [ 99.694277][ T17] ? deferred_probe_work_func+0x400/0x400 [ 99.700004][ T17] __device_attach+0x454/0x730 [ 99.704770][ T17] device_initial_probe+0x4a/0x60 [ 99.709816][ T17] bus_probe_device+0x137/0x390 [ 99.714705][ T17] device_add+0x288d/0x30e0 [ 99.719922][ T17] usb_set_configuration+0x30dc/0x3750 [ 99.725447][ T17] generic_probe+0xe7/0x280 [ 99.729979][ T17] ? usb_choose_configuration+0xae0/0xae0 [ 99.735709][ T17] usb_probe_device+0x14c/0x200 [ 99.740572][ T17] ? usb_register_device_driver+0x470/0x470 [ 99.746462][ T17] really_probe+0xdae/0x1d80 [ 99.751086][ T17] driver_probe_device+0x1b3/0x4f0 [ 99.756211][ T17] __device_attach_driver+0x5b8/0x790 [ 99.761608][ T17] bus_for_each_drv+0x28e/0x3b0 [ 99.766455][ T17] ? deferred_probe_work_func+0x400/0x400 [ 99.772180][ T17] __device_attach+0x454/0x730 [ 99.776967][ T17] device_initial_probe+0x4a/0x60 [ 99.781999][ T17] bus_probe_device+0x137/0x390 [ 99.786862][ T17] device_add+0x288d/0x30e0 [ 99.791412][ T17] usb_new_device+0x23e5/0x2ff0 [ 99.796282][ T17] hub_event+0x48d1/0x7290 [ 99.800751][ T17] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 99.806653][ T17] ? led_work+0x720/0x720 [ 99.810992][ T17] ? led_work+0x720/0x720 [ 99.815330][ T17] process_one_work+0x1572/0x1f00 [ 99.820579][ T17] worker_thread+0x111b/0x2460 [ 99.825396][ T17] kthread+0x4b5/0x4f0 [ 99.829512][ T17] ? process_one_work+0x1f00/0x1f00 [ 99.834727][ T17] ? kthread_blkcg+0xf0/0xf0 [ 99.839352][ T17] ret_from_fork+0x35/0x40 [ 99.844842][ T17] Kernel Offset: disabled [ 99.849182][ T17] Rebooting in 86400 seconds..