[info] Using makefile-style concurrent boot in runlevel 2. [ 15.305283][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.0.63' (ECDSA) to the list of known hosts. 2019/12/27 19:44:47 parsed 1 programs 2019/12/27 19:44:49 executed programs: 0 syzkaller login: [ 1010.788185][ T1740] cgroup1: Unknown subsys name 'perf_event' [ 1010.794764][ T1740] cgroup1: Unknown subsys name 'net_cls' [ 1012.048058][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 1012.287953][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 1012.408073][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 1012.419074][ T12] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 1012.432069][ T12] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 [ 1012.441181][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 1012.451255][ T12] usb 1-1: config 0 descriptor?? [ 1012.930378][ T12] microsoft 0003:045E:07DA.0001: ignoring exceeding usage max [ 1012.939909][ T12] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 1012.947294][ T12] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 1012.954563][ T12] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 1012.961820][ T12] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 1012.969083][ T12] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 1012.980885][ T12] input: HID 045e:07da as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:045E:07DA.0001/input/input5 [ 1013.067045][ T12] microsoft 0003:045E:07DA.0001: input,hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.0-1/input0 [ 1013.128346][ T1992] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 1013.137710][ T22] usb 1-1: USB disconnect, device number 2 [ 1013.897947][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 1014.137930][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 1014.258043][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 1014.268946][ T12] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 1014.282203][ T12] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 [ 1014.291268][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 1014.300192][ T12] usb 1-1: config 0 descriptor?? [ 1014.838342][ T12] usbhid 1-1:0.0: can't add hid device: -71 [ 1014.844429][ T12] usbhid: probe of 1-1:0.0 failed with error -71 [ 1014.852425][ T12] usb 1-1: USB disconnect, device number 3 [ 1015.207947][ T12] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 1015.447934][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 1015.568101][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 1015.579014][ T12] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 1015.591827][ T12] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 [ 1015.600877][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 1015.610181][ T12] usb 1-1: config 0 descriptor?? [ 1016.079354][ T12] microsoft 0003:045E:07DA.0002: ignoring exceeding usage max [ 1016.089081][ T12] microsoft 0003:045E:07DA.0002: unknown main item tag 0x0 [ 1016.096403][ T12] microsoft 0003:045E:07DA.0002: unknown main item tag 0x0 [ 1016.104084][ T12] microsoft 0003:045E:07DA.0002: unknown main item tag 0x0 [ 1016.111330][ T12] microsoft 0003:045E:07DA.0002: unknown main item tag 0x0 [ 1016.118606][ T12] microsoft 0003:045E:07DA.0002: unknown main item tag 0x0 [ 1016.130172][ T12] input: HID 045e:07da as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:045E:07DA.0002/input/input6 [ 1016.216983][ T12] microsoft 0003:045E:07DA.0002: input,hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.0-1/input0 [ 1016.278329][ T2003] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 1016.286445][ T12] usb 1-1: USB disconnect, device number 4 [ 1017.047943][ T22] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 1017.287906][ T22] usb 1-1: Using ep0 maxpacket: 16 [ 1017.408060][ T22] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 1017.419127][ T22] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 1017.431939][ T22] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 [ 1017.440985][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 1017.450023][ T22] usb 1-1: config 0 descriptor?? 2019/12/27 19:44:56 executed programs: 2 [ 1017.759107][ T22] microsoft 0003:045E:07DA.0003: ignoring exceeding usage max [ 1019.863964][ T2013] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 1022.939147][ T2017] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 2019/12/27 19:45:02 executed programs: 4 [ 1122.787853][ C1] rcu: INFO: rcu_sched self-detected stall on CPU [ 1122.794442][ C1] rcu: 1-....: (10499 ticks this GP) idle=87a/1/0x4000000000000002 softirq=2722/2722 fqs=5228 [ 1122.805150][ C1] (t=10500 jiffies g=2069 q=211) [ 1122.810245][ C1] NMI backtrace for cpu 1 [ 1122.814557][ C1] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc2-syzkaller #0 [ 1122.822740][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1122.836578][ C1] Workqueue: usb_hub_wq hub_event [ 1122.841592][ C1] Call Trace: [ 1122.844885][ C1] [ 1122.847766][ C1] dump_stack+0xef/0x16e [ 1122.852013][ C1] ? lapic_can_unplug_cpu.cold+0x1c/0x3b [ 1122.857702][ C1] nmi_cpu_backtrace.cold+0x55/0x96 [ 1122.862930][ C1] ? lapic_can_unplug_cpu.cold+0x3b/0x3b [ 1122.869033][ C1] nmi_trigger_cpumask_backtrace+0x1b0/0x1c7 [ 1122.875044][ C1] rcu_dump_cpu_stacks+0x169/0x1b3 [ 1122.880140][ C1] rcu_sched_clock_irq.cold+0x503/0x95f [ 1122.885795][ C1] ? trace_hardirqs_off+0x50/0x1d0 [ 1122.890895][ C1] update_process_times+0x25/0x60 [ 1122.895909][ C1] tick_sched_handle+0x9b/0x180 [ 1122.900842][ C1] tick_sched_timer+0x42/0x130 [ 1122.905709][ C1] __hrtimer_run_queues+0x303/0xc60 [ 1122.910897][ C1] ? tick_sched_do_timer+0x1a0/0x1a0 [ 1122.916161][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 1122.922117][ C1] ? ktime_get_update_offsets_now+0x24c/0x320 [ 1122.928170][ C1] hrtimer_interrupt+0x2e8/0x730 [ 1122.933179][ C1] smp_apic_timer_interrupt+0xf5/0x500 [ 1122.938637][ C1] apic_timer_interrupt+0xf/0x20 [ 1122.943564][ C1] [ 1122.946494][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 1122.952628][ C1] Code: 0f 1f 84 00 00 00 00 00 65 48 8b 04 25 00 0f 02 00 65 8b 15 18 0f c3 7e 81 e2 00 01 1f 00 48 8b 34 24 75 2b 8b 90 b0 12 00 00 <83> fa 02 75 20 48 8b 88 b8 12 00 00 8b 80 b4 12 00 00 48 8b 11 48 [ 1122.973145][ C1] RSP: 0018:ffff8881d8c36ca8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1122.981538][ C1] RAX: ffff8881da24e200 RBX: 0000000000000000 RCX: ffffffff8459833c [ 1122.989489][ C1] RDX: 0000000000000000 RSI: ffffffff84598347 RDI: 0000000000000005 [ 1122.997454][ C1] RBP: ffff8881d9b50e00 R08: ffff8881da24e200 R09: ffffc900005c90cc [ 1123.005404][ C1] R10: fffff520000bc81b R11: ffffc900005e40db R12: ffff8881c4e00000 [ 1123.013357][ C1] R13: 0000000000000000 R14: ffff8881d9b50e00 R15: dffffc0000000000 [ 1123.021367][ C1] ? hid_setup_resolution_multiplier+0x34c/0x990 [ 1123.029411][ C1] ? hid_setup_resolution_multiplier+0x357/0x990 [ 1123.035722][ C1] hid_setup_resolution_multiplier+0x357/0x990 [ 1123.041863][ C1] hid_open_report+0x438/0x640 [ 1123.046630][ C1] ? hid_parser_global+0x1440/0x1440 [ 1123.051945][ C1] ? add_dr+0xb4/0x190 [ 1123.056003][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1123.061845][ C1] ms_probe+0x12d/0x4d0 [ 1123.065993][ C1] ? ms_remove+0x90/0x90 [ 1123.070215][ C1] hid_device_probe+0x2be/0x3f0 [ 1123.075052][ C1] ? hid_match_device+0x1f0/0x1f0 [ 1123.080095][ C1] really_probe+0x281/0x6d0 [ 1123.084580][ C1] driver_probe_device+0x104/0x210 [ 1123.089670][ C1] __device_attach_driver+0x1c2/0x220 [ 1123.095108][ C1] ? driver_allows_async_probing+0x160/0x160 [ 1123.101064][ C1] bus_for_each_drv+0x162/0x1e0 [ 1123.105910][ C1] ? bus_rescan_devices+0x20/0x20 [ 1123.110918][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1123.116721][ C1] ? lockdep_hardirqs_on+0x382/0x580 [ 1123.121996][ C1] __device_attach+0x217/0x360 [ 1123.126739][ C1] ? device_bind_driver+0xd0/0xd0 [ 1123.131744][ C1] bus_probe_device+0x1e4/0x290 [ 1123.136575][ C1] device_add+0x1480/0x1c20 [ 1123.141069][ C1] ? device_links_flush_sync_list+0x350/0x350 [ 1123.147134][ C1] ? __debugfs_create_file+0x301/0x3f0 [ 1123.152678][ C1] hid_add_device+0x33c/0x9a0 [ 1123.157419][ C1] ? debug_object_fixup+0x30/0x30 [ 1123.162425][ C1] ? __hid_bus_reprobe_drivers+0x130/0x130 [ 1123.168212][ C1] ? lockdep_init_map+0x1b0/0x5e0 [ 1123.173259][ C1] usbhid_probe+0xa81/0xfa0 [ 1123.177783][ C1] usb_probe_interface+0x305/0x7a0 [ 1123.182877][ C1] ? usb_probe_device+0x100/0x100 [ 1123.187882][ C1] really_probe+0x281/0x6d0 [ 1123.192373][ C1] driver_probe_device+0x104/0x210 [ 1123.197476][ C1] __device_attach_driver+0x1c2/0x220 [ 1123.202830][ C1] ? driver_allows_async_probing+0x160/0x160 [ 1123.208790][ C1] bus_for_each_drv+0x162/0x1e0 [ 1123.213874][ C1] ? bus_rescan_devices+0x20/0x20 [ 1123.218889][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1123.224681][ C1] ? lockdep_hardirqs_on+0x382/0x580 [ 1123.229944][ C1] __device_attach+0x217/0x360 [ 1123.234947][ C1] ? device_bind_driver+0xd0/0xd0 [ 1123.239969][ C1] bus_probe_device+0x1e4/0x290 [ 1123.244925][ C1] device_add+0x1480/0x1c20 [ 1123.249935][ C1] ? wait_for_completion+0x3c0/0x3c0 [ 1123.255287][ C1] ? device_links_flush_sync_list+0x350/0x350 [ 1123.261444][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1123.267242][ C1] usb_set_configuration+0xe67/0x1740 [ 1123.272609][ C1] generic_probe+0x9d/0xd5 [ 1123.277004][ C1] usb_probe_device+0x99/0x100 [ 1123.281771][ C1] ? usb_suspend+0x620/0x620 [ 1123.286350][ C1] really_probe+0x281/0x6d0 [ 1123.291180][ C1] driver_probe_device+0x104/0x210 [ 1123.296279][ C1] __device_attach_driver+0x1c2/0x220 [ 1123.301631][ C1] ? driver_allows_async_probing+0x160/0x160 [ 1123.307620][ C1] bus_for_each_drv+0x162/0x1e0 [ 1123.312467][ C1] ? bus_rescan_devices+0x20/0x20 [ 1123.317542][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1123.323436][ C1] ? lockdep_hardirqs_on+0x382/0x580 [ 1123.328716][ C1] __device_attach+0x217/0x360 [ 1123.333466][ C1] ? device_bind_driver+0xd0/0xd0 [ 1123.338468][ C1] bus_probe_device+0x1e4/0x290 [ 1123.343299][ C1] device_add+0x1480/0x1c20 [ 1123.347779][ C1] ? device_links_flush_sync_list+0x350/0x350 [ 1123.353826][ C1] usb_new_device.cold+0x6a4/0xe79 [ 1123.359369][ C1] hub_event+0x1e59/0x3860 [ 1123.363774][ C1] ? hub_port_debounce+0x260/0x260 [ 1123.368882][ C1] ? find_held_lock+0x2d/0x110 [ 1123.373626][ C1] ? mark_held_locks+0xe0/0xe0 [ 1123.378911][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1123.384434][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1123.389698][ C1] process_one_work+0x92b/0x1530 [ 1123.394615][ C1] ? pwq_dec_nr_in_flight+0x310/0x310 [ 1123.399972][ C1] ? do_raw_spin_lock+0x11a/0x280 [ 1123.405026][ C1] worker_thread+0x96/0xe20 [ 1123.409511][ C1] ? process_one_work+0x1530/0x1530 [ 1123.414686][ C1] kthread+0x318/0x420 [ 1123.418766][ C1] ? kthread_create_on_node+0xf0/0xf0 [ 1123.424653][ C1] ret_from_fork+0x24/0x30