[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 84.916430][ T30] audit: type=1800 audit(1559753694.967:25): pid=11951 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 84.952005][ T30] audit: type=1800 audit(1559753694.987:26): pid=11951 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 84.976535][ T30] audit: type=1800 audit(1559753694.997:27): pid=11951 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 '10.128.0.252' (ECDSA) to the list of known hosts. syzkaller login: [ 96.542022][ T3358] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 96.552010][ T17] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 96.562185][ T12] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 96.572031][ T5] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 96.572227][ T33] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 96.587405][T12114] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 96.782635][ T3358] usb 1-1: Using ep0 maxpacket: 8 [ 96.792053][ T17] usb 2-1: Using ep0 maxpacket: 8 [ 96.802123][ T12] usb 4-1: Using ep0 maxpacket: 8 [ 96.812067][ T5] usb 6-1: Using ep0 maxpacket: 8 [ 96.832054][T12114] usb 5-1: Using ep0 maxpacket: 8 [ 96.837726][ T33] usb 3-1: Using ep0 maxpacket: 8 [ 96.902171][ T3358] usb 1-1: config 0 has an invalid interface number: 81 but max is 0 [ 96.910463][ T3358] usb 1-1: config 0 has no interface number 0 [ 96.916889][ T3358] usb 1-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 96.922412][ T17] usb 2-1: config 0 has an invalid interface number: 81 but max is 0 [ 96.926167][ T3358] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 96.934287][ T17] usb 2-1: config 0 has no interface number 0 [ 96.943669][ T12] usb 4-1: config 0 has an invalid interface number: 81 but max is 0 [ 96.948529][ T17] usb 2-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 96.948609][ T17] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 96.956874][ T12] usb 4-1: config 0 has no interface number 0 [ 96.969526][ T17] usb 2-1: config 0 descriptor?? [ 96.974044][ T12] usb 4-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 96.994295][ T12] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 97.002725][ T5] usb 6-1: config 0 has an invalid interface number: 81 but max is 0 [ 97.010984][ T5] usb 6-1: config 0 has no interface number 0 [ 97.012315][T12114] usb 5-1: config 0 has an invalid interface number: 81 but max is 0 [ 97.017274][ T5] usb 6-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 97.025463][T12114] usb 5-1: config 0 has no interface number 0 [ 97.025589][T12114] usb 5-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 97.034684][ T5] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 97.040775][T12114] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 97.051596][ T3358] usb 1-1: config 0 descriptor?? [ 97.058864][ T33] usb 3-1: config 0 has an invalid interface number: 81 but max is 0 [ 97.074647][ T5] usb 6-1: config 0 descriptor?? [ 97.079379][ T33] usb 3-1: config 0 has no interface number 0 [ 97.087191][ T12] usb 4-1: config 0 descriptor?? [ 97.090604][ T33] usb 3-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 97.090688][ T33] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 97.125898][T12114] usb 5-1: config 0 descriptor?? [ 97.145101][ T33] usb 3-1: config 0 descriptor?? [ 97.232398][ T17] asix 2-1:0.81 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 97.242816][ T17] asix: probe of 2-1:0.81 failed with error -71 [ 97.310646][ T17] usb 2-1: USB disconnect, device number 2 [ 97.322392][ T12] asix 4-1:0.81 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 97.332743][ T12] asix: probe of 4-1:0.81 failed with error -71 [ 97.343448][ T3358] asix 1-1:0.81 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 97.353659][ T3358] asix: probe of 1-1:0.81 failed with error -71 [ 97.358126][ T5] asix 6-1:0.81 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 97.370718][ T5] asix: probe of 6-1:0.81 failed with error -71 [ 97.382831][ T33] asix 3-1:0.81 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 97.393204][ T33] asix: probe of 3-1:0.81 failed with error -71 [ 97.404651][T12114] asix 5-1:0.81 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 97.414910][T12114] asix 5-1:0.81 (unnamed net_device) (uninitialized): Error reading PHYID register: ffffffb9 [ 97.445108][ T3358] usb 1-1: USB disconnect, device number 2 [ 97.455062][ T12] usb 4-1: USB disconnect, device number 2 [ 97.471787][ T5] usb 6-1: USB disconnect, device number 2 [ 97.478470][ T33] usb 3-1: USB disconnect, device number 2 [ 97.489541][T12114] asix 5-1:0.81 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 [ 97.499949][T12114] asix 5-1:0.81 (unnamed net_device) (uninitialized): Failed to send software reset: ffffffb9 [ 97.692314][T12114] asix 5-1:0.81 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 [ 97.702897][T12114] asix 5-1:0.81 (unnamed net_device) (uninitialized): Failed to send software reset: ffffffb9 [ 97.782037][ T17] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 97.831931][ T3358] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 97.842331][ T12] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 97.852455][ T5] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 97.861998][ T33] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 97.892156][T12114] ================================================================== [ 97.900385][T12114] BUG: KMSAN: uninit-value in usbnet_probe+0x2aba/0x3940 [ 97.907436][T12114] CPU: 1 PID: 12114 Comm: kworker/1:2 Not tainted 5.1.0+ #1 [ 97.914708][T12114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.924785][T12114] Workqueue: usb_hub_wq hub_event [ 97.929800][T12114] Call Trace: [ 97.933131][T12114] dump_stack+0x191/0x1f0 [ 97.937473][T12114] kmsan_report+0x130/0x2a0 [ 97.942000][T12114] __msan_warning+0x75/0xe0 [ 97.946539][T12114] usbnet_probe+0x2aba/0x3940 [ 97.951281][T12114] ? usbnet_disconnect+0x660/0x660 [ 97.956405][T12114] usb_probe_interface+0xd66/0x1320 [ 97.961630][T12114] ? usb_register_driver+0x7d0/0x7d0 [ 97.966926][T12114] really_probe+0xdae/0x1d80 [ 97.971581][T12114] driver_probe_device+0x1b3/0x4f0 [ 97.976726][T12114] __device_attach_driver+0x5b8/0x790 [ 97.982141][T12114] bus_for_each_drv+0x28e/0x3b0 [ 97.986987][T12114] ? deferred_probe_work_func+0x400/0x400 [ 97.992730][T12114] __device_attach+0x454/0x730 [ 97.997513][T12114] device_initial_probe+0x4a/0x60 [ 98.002550][T12114] bus_probe_device+0x137/0x390 [ 98.007414][T12114] device_add+0x288d/0x30e0 [ 98.011964][T12114] usb_set_configuration+0x30dc/0x3750 [ 98.017473][T12114] generic_probe+0xe7/0x280 [ 98.021982][T12114] ? usb_choose_configuration+0xae0/0xae0 [ 98.027722][T12114] usb_probe_device+0x14c/0x200 [ 98.032572][T12114] ? usb_register_device_driver+0x470/0x470 [ 98.038463][T12114] really_probe+0xdae/0x1d80 [ 98.043073][T12114] driver_probe_device+0x1b3/0x4f0 [ 98.048204][T12114] __device_attach_driver+0x5b8/0x790 [ 98.053597][T12114] bus_for_each_drv+0x28e/0x3b0 [ 98.058456][T12114] ? deferred_probe_work_func+0x400/0x400 [ 98.064189][T12114] __device_attach+0x454/0x730 [ 98.069166][T12114] device_initial_probe+0x4a/0x60 [ 98.073043][ T3358] usb 1-1: Using ep0 maxpacket: 8 [ 98.074225][T12114] bus_probe_device+0x137/0x390 [ 98.074266][T12114] device_add+0x288d/0x30e0 [ 98.074329][T12114] usb_new_device+0x23e5/0x2ff0 [ 98.082827][ T12] usb 4-1: Using ep0 maxpacket: 8 [ 98.084223][T12114] hub_event+0x48d1/0x7290 [ 98.084329][T12114] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 98.092808][ T5] usb 6-1: Using ep0 maxpacket: 8 [ 98.093621][T12114] ? led_work+0x720/0x720 [ 98.118255][T12114] ? led_work+0x720/0x720 [ 98.122585][T12114] process_one_work+0x1572/0x1f00 [ 98.127628][T12114] worker_thread+0x111b/0x2460 [ 98.132479][T12114] kthread+0x4b5/0x4f0 [ 98.136563][T12114] ? process_one_work+0x1f00/0x1f00 [ 98.141784][T12114] ? kthread_blkcg+0xf0/0xf0 [ 98.146388][T12114] ret_from_fork+0x35/0x40 [ 98.150805][T12114] [ 98.153140][T12114] Uninit was stored to memory at: [ 98.158168][T12114] kmsan_internal_chain_origin+0x133/0x230 [ 98.163999][T12114] kmsan_memcpy_memmove_metadata+0x969/0xd40 [ 98.169984][T12114] kmsan_memcpy_metadata+0xb/0x10 [ 98.175000][T12114] __msan_memcpy+0x56/0x70 [ 98.179416][T12114] ax88178_bind+0x241/0xad0 [ 98.183927][T12114] usbnet_probe+0x10f5/0x3940 [ 98.188609][T12114] usb_probe_interface+0xd66/0x1320 [ 98.192307][ T3358] usb 1-1: config 0 has an invalid interface number: 81 but max is 0 [ 98.193802][T12114] really_probe+0xdae/0x1d80 [ 98.193819][T12114] driver_probe_device+0x1b3/0x4f0 [ 98.193836][T12114] __device_attach_driver+0x5b8/0x790 [ 98.193880][T12114] bus_for_each_drv+0x28e/0x3b0 [ 98.202180][ T3358] usb 1-1: config 0 has no interface number 0 [ 98.206564][T12114] __device_attach+0x454/0x730 [ 98.211713][ T3358] usb 1-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 98.217028][T12114] device_initial_probe+0x4a/0x60 [ 98.217044][T12114] bus_probe_device+0x137/0x390 [ 98.217061][T12114] device_add+0x288d/0x30e0 [ 98.217080][T12114] usb_set_configuration+0x30dc/0x3750 [ 98.217097][T12114] generic_probe+0xe7/0x280 [ 98.217113][T12114] usb_probe_device+0x14c/0x200 [ 98.217127][T12114] really_probe+0xdae/0x1d80 [ 98.217142][T12114] driver_probe_device+0x1b3/0x4f0 [ 98.217156][T12114] __device_attach_driver+0x5b8/0x790 [ 98.217170][T12114] bus_for_each_drv+0x28e/0x3b0 [ 98.217183][T12114] __device_attach+0x454/0x730 [ 98.217198][T12114] device_initial_probe+0x4a/0x60 [ 98.217212][T12114] bus_probe_device+0x137/0x390 [ 98.217256][T12114] device_add+0x288d/0x30e0 [ 98.222203][ T3358] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.228166][T12114] usb_new_device+0x23e5/0x2ff0 [ 98.228206][T12114] hub_event+0x48d1/0x7290 [ 98.237150][ T12] usb 4-1: config 0 has an invalid interface number: 81 but max is 0 [ 98.242410][T12114] process_one_work+0x1572/0x1f00 [ 98.242425][T12114] worker_thread+0x111b/0x2460 [ 98.242443][T12114] kthread+0x4b5/0x4f0 [ 98.242459][T12114] ret_from_fork+0x35/0x40 [ 98.242464][T12114] [ 98.242473][T12114] Local variable description: ----buf@ax88178_bind [ 98.242478][T12114] Variable was created at: [ 98.242497][T12114] ax88178_bind+0x60/0xad0 [ 98.242531][T12114] Disabling lock debugging due to kernel taint [ 98.247620][ T12] usb 4-1: config 0 has no interface number 0 [ 98.252404][T12114] Kernel panic - not syncing: panic_on_warn set ... [ 98.252426][T12114] CPU: 1 PID: 12114 Comm: kworker/1:2 Tainted: G B 5.1.0+ #1 [ 98.252434][T12114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.252457][T12114] Workqueue: usb_hub_wq hub_event [ 98.252467][T12114] Call Trace: [ 98.252500][T12114] dump_stack+0x191/0x1f0 [ 98.252532][T12114] panic+0x3ca/0xafe [ 98.252600][T12114] kmsan_report+0x298/0x2a0 [ 98.257153][ T12] usb 4-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 98.262536][T12114] __msan_warning+0x75/0xe0 [ 98.262566][T12114] usbnet_probe+0x2aba/0x3940 [ 98.262641][T12114] ? usbnet_disconnect+0x660/0x660 [ 98.267289][ T12] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.272088][T12114] usb_probe_interface+0xd66/0x1320 [ 98.272130][T12114] ? usb_register_driver+0x7d0/0x7d0 [ 98.272155][T12114] really_probe+0xdae/0x1d80 [ 98.272202][T12114] driver_probe_device+0x1b3/0x4f0 [ 98.281319][ T5] usb 6-1: config 0 has an invalid interface number: 81 but max is 0 [ 98.281915][T12114] __device_attach_driver+0x5b8/0x790 [ 98.281958][T12114] bus_for_each_drv+0x28e/0x3b0 [ 98.281977][T12114] ? deferred_probe_work_func+0x400/0x400 [ 98.282009][T12114] __device_attach+0x454/0x730 [ 98.282051][T12114] device_initial_probe+0x4a/0x60 [ 98.287577][ T5] usb 6-1: config 0 has no interface number 0 [ 98.292295][T12114] bus_probe_device+0x137/0x390 [ 98.292333][T12114] device_add+0x288d/0x30e0 [ 98.292426][T12114] usb_set_configuration+0x30dc/0x3750 [ 98.297280][ T5] usb 6-1: New USB device found, idVendor=04bb, idProduct=0930, bcdDevice= f.22 [ 98.302279][T12114] generic_probe+0xe7/0x280 [ 98.302304][T12114] ? usb_choose_configuration+0xae0/0xae0 [ 98.302352][T12114] usb_probe_device+0x14c/0x200 [ 98.307266][ T5] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 98.311747][T12114] ? usb_register_device_driver+0x470/0x470 [ 98.323274][ T12] usb 4-1: config 0 descriptor?? [ 98.324564][T12114] really_probe+0xdae/0x1d80 [ 98.324630][T12114] driver_probe_device+0x1b3/0x4f0 [ 98.330276][ T3358] usb 1-1: config 0 descriptor?? [ 98.337176][T12114] __device_attach_driver+0x5b8/0x790 [ 98.337221][T12114] bus_for_each_drv+0x28e/0x3b0 [ 98.337241][T12114] ? deferred_probe_work_func+0x400/0x400 [ 98.337271][T12114] __device_attach+0x454/0x730 [ 98.337307][T12114] device_initial_probe+0x4a/0x60 [ 98.337329][T12114] bus_probe_device+0x137/0x390 [ 98.337366][T12114] device_add+0x288d/0x30e0 [ 98.337426][T12114] usb_new_device+0x23e5/0x2ff0 [ 98.345539][ T5] usb 6-1: config 0 descriptor?? [ 98.347261][T12114] hub_event+0x48d1/0x7290 [ 98.347368][T12114] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 98.545747][T12132] usb-fuzzer-gadget dummy_udc.3: unregistering UDC driver [USB fuzzer] [ 98.550302][T12114] ? led_work+0x720/0x720 [ 98.555469][T12132] dummy_hcd dummy_hcd.3: port status 0x00010100 has changes [ 98.560582][T12114] ? led_work+0x720/0x720 [ 98.565719][ C0] dummy_hcd dummy_hcd.3: no ep configured for urb 000000006b98b8ce [ 98.573460][T12114] process_one_work+0x1572/0x1f00 [ 98.581537][T12131] usb-fuzzer-gadget dummy_udc.5: unregistering UDC driver [USB fuzzer] [ 98.584352][T12114] worker_thread+0x111b/0x2460 [ 98.584413][T12114] kthread+0x4b5/0x4f0 [ 98.584459][T12114] ? process_one_work+0x1f00/0x1f00 [ 98.589524][T12131] dummy_hcd dummy_hcd.5: port status 0x00010100 has changes [ 98.594231][T12114] ? kthread_blkcg+0xf0/0xf0 [ 98.602031][ C0] dummy_hcd dummy_hcd.5: no ep configured for urb 00000000c727b939 [ 98.605263][T12114] ret_from_fork+0x35/0x40 [ 98.610458][ T5] asix 6-1:0.81 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 [ 98.616957][T12114] Kernel Offset: disabled [ 98.761732][T12114] Rebooting in 86400 seconds..