[ 61.684864][ T30] audit: type=1800 audit(1559616929.731:27): pid=10495 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 61.705382][ T30] audit: type=1800 audit(1559616929.741:28): pid=10495 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 63.153398][ T30] audit: type=1800 audit(1559616931.211:29): pid=10495 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 63.176787][ T30] audit: type=1800 audit(1559616931.231:30): pid=10495 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 73.141821][ T3338] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 73.381807][ T3338] usb 1-1: Using ep0 maxpacket: 8 [ 73.501790][ T3338] usb 1-1: config 4 has an invalid interface number: 176 but max is 0 [ 73.510013][ T3338] usb 1-1: config 4 has an invalid descriptor of length 195, skipping remainder of the config [ 73.520408][ T3338] usb 1-1: config 4 has no interface number 0 [ 73.526595][ T3338] usb 1-1: config 4 interface 176 altsetting 0 endpoint 0x6 has invalid maxpacket 126, setting to 64 [ 73.537573][ T3338] usb 1-1: config 4 interface 176 altsetting 0 has an invalid endpoint with address 0xFF, skipping [ 73.548331][ T3338] usb 1-1: config 4 interface 176 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 73.561473][ T3338] usb 1-1: New USB device found, idVendor=06a2, idProduct=6810, bcdDevice=1b.af [ 73.570582][ T3338] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 executing program [ 73.821794][ T3338] usb 1-1: string descriptor 0 read error: -71 [ 73.831287][ T3338] gspca_main: gspca_topro-2.14.0 probing 06a2:6810 [ 73.861759][ T3338] gspca_topro: reg_w err -71 [ 73.931697][ T3338] ================================================================== [ 73.939798][ T3338] BUG: KMSAN: uninit-value in i2c_w+0xb7a/0xd70 [ 73.946022][ T3338] CPU: 1 PID: 3338 Comm: kworker/1:2 Not tainted 5.1.0+ #1 [ 73.953193][ T3338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.963243][ T3338] Workqueue: usb_hub_wq hub_event [ 73.968239][ T3338] Call Trace: [ 73.971522][ T3338] dump_stack+0x191/0x1f0 [ 73.975837][ T3338] kmsan_report+0x130/0x2a0 [ 73.980323][ T3338] __msan_warning+0x75/0xe0 [ 73.984822][ T3338] i2c_w+0xb7a/0xd70 [ 73.988699][ T3338] sd_init+0xc05/0x7ca0 [ 73.992843][ T3338] ? sd_config+0x260/0x260 [ 73.997237][ T3338] gspca_dev_probe2+0xee0/0x2240 [ 74.002170][ T3338] gspca_dev_probe+0x346/0x3b0 [ 74.006915][ T3338] sd_probe+0x8d/0xa0 [ 74.010929][ T3338] ? sd_s_ctrl+0x2590/0x2590 [ 74.015530][ T3338] usb_probe_interface+0xd66/0x1320 [ 74.020718][ T3338] ? usb_register_driver+0x7d0/0x7d0 [ 74.025995][ T3338] really_probe+0xdae/0x1d80 [ 74.030568][ T3338] driver_probe_device+0x1b3/0x4f0 [ 74.035661][ T3338] __device_attach_driver+0x5b8/0x790 [ 74.041016][ T3338] bus_for_each_drv+0x28e/0x3b0 [ 74.045844][ T3338] ? deferred_probe_work_func+0x400/0x400 [ 74.051563][ T3338] __device_attach+0x454/0x730 [ 74.056319][ T3338] device_initial_probe+0x4a/0x60 [ 74.061321][ T3338] bus_probe_device+0x137/0x390 [ 74.066155][ T3338] device_add+0x288d/0x30e0 [ 74.070659][ T3338] usb_set_configuration+0x30dc/0x3750 [ 74.076122][ T3338] generic_probe+0xe7/0x280 [ 74.080607][ T3338] ? usb_choose_configuration+0xae0/0xae0 [ 74.086306][ T3338] usb_probe_device+0x14c/0x200 [ 74.091135][ T3338] ? usb_register_device_driver+0x470/0x470 [ 74.097005][ T3338] really_probe+0xdae/0x1d80 [ 74.101589][ T3338] driver_probe_device+0x1b3/0x4f0 [ 74.106696][ T3338] __device_attach_driver+0x5b8/0x790 [ 74.112056][ T3338] bus_for_each_drv+0x28e/0x3b0 [ 74.116895][ T3338] ? deferred_probe_work_func+0x400/0x400 [ 74.122598][ T3338] __device_attach+0x454/0x730 [ 74.127344][ T3338] device_initial_probe+0x4a/0x60 [ 74.132348][ T3338] bus_probe_device+0x137/0x390 [ 74.137182][ T3338] device_add+0x288d/0x30e0 [ 74.141788][ T3338] usb_new_device+0x23e5/0x2ff0 [ 74.146630][ T3338] hub_event+0x48d1/0x7290 [ 74.151049][ T3338] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 74.156918][ T3338] ? led_work+0x720/0x720 [ 74.161223][ T3338] ? led_work+0x720/0x720 [ 74.165530][ T3338] process_one_work+0x1572/0x1f00 [ 74.170539][ T3338] worker_thread+0x111b/0x2460 [ 74.175309][ T3338] kthread+0x4b5/0x4f0 [ 74.179357][ T3338] ? process_one_work+0x1f00/0x1f00 [ 74.184549][ T3338] ? kthread_blkcg+0xf0/0xf0 [ 74.189115][ T3338] ret_from_fork+0x35/0x40 [ 74.193531][ T3338] [ 74.195839][ T3338] Uninit was created at: [ 74.200063][ T3338] kmsan_internal_poison_shadow+0x92/0x150 [ 74.205846][ T3338] kmsan_kmalloc+0xa4/0x130 [ 74.210325][ T3338] kmem_cache_alloc_trace+0x503/0xae0 [ 74.215674][ T3338] gspca_dev_probe2+0x30c/0x2240 [ 74.220594][ T3338] gspca_dev_probe+0x346/0x3b0 [ 74.225334][ T3338] sd_probe+0x8d/0xa0 [ 74.229297][ T3338] usb_probe_interface+0xd66/0x1320 [ 74.234474][ T3338] really_probe+0xdae/0x1d80 [ 74.239040][ T3338] driver_probe_device+0x1b3/0x4f0 [ 74.244125][ T3338] __device_attach_driver+0x5b8/0x790 [ 74.249474][ T3338] bus_for_each_drv+0x28e/0x3b0 [ 74.254301][ T3338] __device_attach+0x454/0x730 [ 74.259038][ T3338] device_initial_probe+0x4a/0x60 [ 74.264038][ T3338] bus_probe_device+0x137/0x390 [ 74.268865][ T3338] device_add+0x288d/0x30e0 [ 74.273347][ T3338] usb_set_configuration+0x30dc/0x3750 [ 74.278780][ T3338] generic_probe+0xe7/0x280 [ 74.283260][ T3338] usb_probe_device+0x14c/0x200 [ 74.288087][ T3338] really_probe+0xdae/0x1d80 [ 74.292654][ T3338] driver_probe_device+0x1b3/0x4f0 [ 74.297753][ T3338] __device_attach_driver+0x5b8/0x790 [ 74.303097][ T3338] bus_for_each_drv+0x28e/0x3b0 [ 74.307919][ T3338] __device_attach+0x454/0x730 [ 74.312656][ T3338] device_initial_probe+0x4a/0x60 [ 74.317653][ T3338] bus_probe_device+0x137/0x390 [ 74.322484][ T3338] device_add+0x288d/0x30e0 [ 74.326966][ T3338] usb_new_device+0x23e5/0x2ff0 [ 74.331799][ T3338] hub_event+0x48d1/0x7290 [ 74.336204][ T3338] process_one_work+0x1572/0x1f00 [ 74.341219][ T3338] worker_thread+0x111b/0x2460 [ 74.345976][ T3338] kthread+0x4b5/0x4f0 [ 74.350019][ T3338] ret_from_fork+0x35/0x40 [ 74.354407][ T3338] ================================================================== [ 74.362451][ T3338] Disabling lock debugging due to kernel taint [ 74.368574][ T3338] Kernel panic - not syncing: panic_on_warn set ... [ 74.375139][ T3338] CPU: 1 PID: 3338 Comm: kworker/1:2 Tainted: G B 5.1.0+ #1 [ 74.383712][ T3338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.393759][ T3338] Workqueue: usb_hub_wq hub_event [ 74.398761][ T3338] Call Trace: [ 74.402034][ T3338] dump_stack+0x191/0x1f0 [ 74.406343][ T3338] panic+0x3ca/0xafe [ 74.410229][ T3338] kmsan_report+0x298/0x2a0 [ 74.414712][ T3338] __msan_warning+0x75/0xe0 [ 74.419196][ T3338] i2c_w+0xb7a/0xd70 [ 74.423073][ T3338] sd_init+0xc05/0x7ca0 [ 74.427218][ T3338] ? sd_config+0x260/0x260 [ 74.431639][ T3338] gspca_dev_probe2+0xee0/0x2240 [ 74.436576][ T3338] gspca_dev_probe+0x346/0x3b0 [ 74.441323][ T3338] sd_probe+0x8d/0xa0 [ 74.445287][ T3338] ? sd_s_ctrl+0x2590/0x2590 [ 74.449858][ T3338] usb_probe_interface+0xd66/0x1320 [ 74.455044][ T3338] ? usb_register_driver+0x7d0/0x7d0 [ 74.460305][ T3338] really_probe+0xdae/0x1d80 [ 74.464881][ T3338] driver_probe_device+0x1b3/0x4f0 [ 74.469982][ T3338] __device_attach_driver+0x5b8/0x790 [ 74.475339][ T3338] bus_for_each_drv+0x28e/0x3b0 [ 74.480168][ T3338] ? deferred_probe_work_func+0x400/0x400 [ 74.485866][ T3338] __device_attach+0x454/0x730 [ 74.490611][ T3338] device_initial_probe+0x4a/0x60 [ 74.495612][ T3338] bus_probe_device+0x137/0x390 [ 74.500448][ T3338] device_add+0x288d/0x30e0 [ 74.504946][ T3338] usb_set_configuration+0x30dc/0x3750 [ 74.510407][ T3338] generic_probe+0xe7/0x280 [ 74.514898][ T3338] ? usb_choose_configuration+0xae0/0xae0 [ 74.520601][ T3338] usb_probe_device+0x14c/0x200 [ 74.525432][ T3338] ? usb_register_device_driver+0x470/0x470 [ 74.531317][ T3338] really_probe+0xdae/0x1d80 [ 74.535894][ T3338] driver_probe_device+0x1b3/0x4f0 [ 74.540985][ T3338] __device_attach_driver+0x5b8/0x790 [ 74.546342][ T3338] bus_for_each_drv+0x28e/0x3b0 [ 74.551171][ T3338] ? deferred_probe_work_func+0x400/0x400 [ 74.556872][ T3338] __device_attach+0x454/0x730 [ 74.561636][ T3338] device_initial_probe+0x4a/0x60 [ 74.566646][ T3338] bus_probe_device+0x137/0x390 [ 74.571571][ T3338] device_add+0x288d/0x30e0 [ 74.576080][ T3338] usb_new_device+0x23e5/0x2ff0 [ 74.580921][ T3338] hub_event+0x48d1/0x7290 [ 74.585346][ T3338] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 74.591216][ T3338] ? led_work+0x720/0x720 [ 74.595520][ T3338] ? led_work+0x720/0x720 [ 74.599834][ T3338] process_one_work+0x1572/0x1f00 [ 74.604851][ T3338] worker_thread+0x111b/0x2460 [ 74.609606][ T3338] kthread+0x4b5/0x4f0 [ 74.613659][ T3338] ? process_one_work+0x1f00/0x1f00 [ 74.618838][ T3338] ? kthread_blkcg+0xf0/0xf0 [ 74.623410][ T3338] ret_from_fork+0x35/0x40 [ 74.629007][ T3338] Kernel Offset: disabled [ 74.633342][ T3338] Rebooting in 86400 seconds..