[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 85.347530][ T32] audit: type=1800 audit(1559714268.392:25): pid=11384 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 85.372033][ T32] audit: type=1800 audit(1559714268.422:26): pid=11384 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 85.407886][ T32] audit: type=1800 audit(1559714268.442:27): pid=11384 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 '10.128.0.71' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 96.769975][T11535] IPVS: ftp: loaded support on port[0] = 21 [ 97.082493][ T12] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 97.442499][ T12] usb 1-1: config 0 has an invalid interface number: 130 but max is 0 [ 97.450774][ T12] usb 1-1: config 0 has no interface number 0 [ 97.457058][ T12] usb 1-1: New USB device found, idVendor=09c0, idProduct=0206, bcdDevice=ce.c9 [ 97.466310][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 97.476103][ T12] usb 1-1: config 0 descriptor?? [ 97.516545][ T12] dvb-usb: found a 'Genpix SkyWalker-2 DVB-S receiver' in warm state. [ 97.702701][ T12] gp8psk: usb in 128 operation failed. [ 97.708246][ T12] ================================================================== [ 97.716323][ T12] BUG: KMSAN: uninit-value in gp8psk_power_ctrl+0x33e/0xca0 [ 97.723612][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0+ #1 [ 97.730629][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.740713][ T12] Workqueue: usb_hub_wq hub_event [ 97.745735][ T12] Call Trace: [ 97.749055][ T12] dump_stack+0x191/0x1f0 [ 97.753399][ T12] kmsan_report+0x130/0x2a0 [ 97.757911][ T12] __msan_warning+0x75/0xe0 [ 97.762411][ T12] gp8psk_power_ctrl+0x33e/0xca0 [ 97.767358][ T12] ? __kmalloc+0x156/0x3a0 [ 97.771786][ T12] dvb_usb_device_init+0x15ad/0x2cc0 [ 97.777075][ T12] ? pm_runtime_enable+0x303/0x4f0 [ 97.782224][ T12] gp8psk_usb_probe+0xa2/0x190 [ 97.786997][ T12] ? vp702x_fe_refresh_state+0x560/0x560 [ 97.792644][ T12] usb_probe_interface+0xd66/0x1320 [ 97.803916][ T12] ? usb_register_driver+0x7d0/0x7d0 [ 97.809292][ T12] really_probe+0xdae/0x1d80 [ 97.813909][ T12] driver_probe_device+0x1b3/0x4f0 [ 97.823040][ T12] __device_attach_driver+0x5b8/0x790 [ 97.828453][ T12] bus_for_each_drv+0x28e/0x3b0 [ 97.833313][ T12] ? deferred_probe_work_func+0x400/0x400 [ 97.839057][ T12] __device_attach+0x454/0x730 [ 97.843829][ T12] device_initial_probe+0x4a/0x60 [ 97.848849][ T12] bus_probe_device+0x137/0x390 [ 97.853727][ T12] device_add+0x288d/0x30e0 [ 97.858255][ T12] usb_set_configuration+0x30dc/0x3750 [ 97.863758][ T12] generic_probe+0xe7/0x280 [ 97.868282][ T12] ? usb_choose_configuration+0xae0/0xae0 [ 97.874026][ T12] usb_probe_device+0x14c/0x200 [ 97.878888][ T12] ? usb_register_device_driver+0x470/0x470 [ 97.884784][ T12] really_probe+0xdae/0x1d80 [ 97.889379][ T12] driver_probe_device+0x1b3/0x4f0 [ 97.894579][ T12] __device_attach_driver+0x5b8/0x790 [ 97.899956][ T12] bus_for_each_drv+0x28e/0x3b0 [ 97.904889][ T12] ? deferred_probe_work_func+0x400/0x400 [ 97.910607][ T12] __device_attach+0x454/0x730 [ 97.915578][ T12] device_initial_probe+0x4a/0x60 [ 97.926511][ T12] bus_probe_device+0x137/0x390 [ 97.931374][ T12] device_add+0x288d/0x30e0 [ 97.937870][ T12] usb_new_device+0x23e5/0x2ff0 [ 97.942751][ T12] hub_event+0x48d1/0x7290 [ 97.947227][ T12] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 97.953220][ T12] ? led_work+0x720/0x720 [ 97.957541][ T12] ? led_work+0x720/0x720 [ 97.961869][ T12] process_one_work+0x1572/0x1f00 [ 97.966921][ T12] worker_thread+0x111b/0x2460 [ 97.973477][ T12] kthread+0x4b5/0x4f0 [ 97.977543][ T12] ? process_one_work+0x1f00/0x1f00 [ 97.982736][ T12] ? kthread_blkcg+0xf0/0xf0 [ 97.987319][ T12] ret_from_fork+0x35/0x40 [ 97.991733][ T12] [ 97.994074][ T12] Local variable description: ----status@gp8psk_power_ctrl [ 98.001279][ T12] Variable was created at: [ 98.005689][ T12] gp8psk_power_ctrl+0x63/0xca0 [ 98.010530][ T12] dvb_usb_device_init+0x15ad/0x2cc0 [ 98.015795][ T12] ================================================================== [ 98.023882][ T12] Disabling lock debugging due to kernel taint [ 98.030023][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 98.036598][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.1.0+ #1 [ 98.045022][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.055197][ T12] Workqueue: usb_hub_wq hub_event [ 98.060206][ T12] Call Trace: [ 98.063496][ T12] dump_stack+0x191/0x1f0 [ 98.067827][ T12] panic+0x3ca/0xafe [ 98.071848][ T12] kmsan_report+0x298/0x2a0 [ 98.076371][ T12] __msan_warning+0x75/0xe0 [ 98.080875][ T12] gp8psk_power_ctrl+0x33e/0xca0 [ 98.085832][ T12] ? __kmalloc+0x156/0x3a0 [ 98.090289][ T12] dvb_usb_device_init+0x15ad/0x2cc0 [ 98.102235][ T12] ? pm_runtime_enable+0x303/0x4f0 [ 98.107479][ T12] gp8psk_usb_probe+0xa2/0x190 [ 98.112248][ T12] ? vp702x_fe_refresh_state+0x560/0x560 [ 98.118069][ T12] usb_probe_interface+0xd66/0x1320 [ 98.123284][ T12] ? usb_register_driver+0x7d0/0x7d0 [ 98.128568][ T12] really_probe+0xdae/0x1d80 [ 98.133169][ T12] driver_probe_device+0x1b3/0x4f0 [ 98.138281][ T12] __device_attach_driver+0x5b8/0x790 [ 98.143658][ T12] bus_for_each_drv+0x28e/0x3b0 [ 98.148499][ T12] ? deferred_probe_work_func+0x400/0x400 [ 98.154242][ T12] __device_attach+0x454/0x730 [ 98.159066][ T12] device_initial_probe+0x4a/0x60 [ 98.164092][ T12] bus_probe_device+0x137/0x390 [ 98.169983][ T12] device_add+0x288d/0x30e0 [ 98.174641][ T12] usb_set_configuration+0x30dc/0x3750 [ 98.180145][ T12] generic_probe+0xe7/0x280 [ 98.185695][ T12] ? usb_choose_configuration+0xae0/0xae0 [ 98.191408][ T12] usb_probe_device+0x14c/0x200 [ 98.196257][ T12] ? usb_register_device_driver+0x470/0x470 [ 98.202312][ T12] really_probe+0xdae/0x1d80 [ 98.207118][ T12] driver_probe_device+0x1b3/0x4f0 [ 98.212317][ T12] __device_attach_driver+0x5b8/0x790 [ 98.217713][ T12] bus_for_each_drv+0x28e/0x3b0 [ 98.222550][ T12] ? deferred_probe_work_func+0x400/0x400 [ 98.228271][ T12] __device_attach+0x454/0x730 [ 98.233074][ T12] device_initial_probe+0x4a/0x60 [ 98.238202][ T12] bus_probe_device+0x137/0x390 [ 98.243054][ T12] device_add+0x288d/0x30e0 [ 98.247598][ T12] usb_new_device+0x23e5/0x2ff0 [ 98.252499][ T12] hub_event+0x48d1/0x7290 [ 98.256965][ T12] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 98.262859][ T12] ? led_work+0x720/0x720 [ 98.267177][ T12] ? led_work+0x720/0x720 [ 98.271524][ T12] process_one_work+0x1572/0x1f00 [ 98.276574][ T12] worker_thread+0x111b/0x2460 [ 98.281360][ T12] kthread+0x4b5/0x4f0 [ 98.285420][ T12] ? process_one_work+0x1f00/0x1f00 [ 98.290701][ T12] ? kthread_blkcg+0xf0/0xf0 [ 98.295284][ T12] ret_from_fork+0x35/0x40 [ 98.301002][ T12] Kernel Offset: disabled [ 98.305349][ T12] Rebooting in 86400 seconds..