Warning: Permanently added '10.128.15.192' (ECDSA) to the list of known hosts. 2020/04/19 01:45:03 parsed 1 programs 2020/04/19 01:45:03 executed programs: 0 [ 29.432688][ T515] cgroup: Unknown subsys name 'perf_event' [ 29.439575][ T514] cgroup: Unknown subsys name 'perf_event' [ 29.442985][ T519] cgroup: Unknown subsys name 'perf_event' [ 29.450293][ T517] cgroup: Unknown subsys name 'perf_event' [ 29.458623][ T514] cgroup: Unknown subsys name 'net_cls' [ 29.460185][ T519] cgroup: Unknown subsys name 'net_cls' [ 29.466105][ T515] cgroup: Unknown subsys name 'net_cls' [ 29.471992][ T521] cgroup: Unknown subsys name 'perf_event' [ 29.477238][ T522] cgroup: Unknown subsys name 'perf_event' [ 29.481900][ T521] cgroup: Unknown subsys name 'net_cls' [ 29.489198][ T517] cgroup: Unknown subsys name 'net_cls' [ 29.503266][ T522] cgroup: Unknown subsys name 'net_cls' [ 37.490197][ T95] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 37.620288][ T83] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 37.670726][ T371] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 37.720169][ T95] usb 5-1: New USB device found, idVendor=056a, idProduct=0061, bcdDevice= 0.40 [ 37.733497][ T95] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.746748][ T95] usb 5-1: config 0 descriptor?? [ 37.750025][ T22] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 37.820054][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 37.830790][ T3222] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 37.841127][ T83] usb 6-1: New USB device found, idVendor=056a, idProduct=0061, bcdDevice= 0.40 [ 37.850316][ T83] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.863160][ T83] usb 6-1: config 0 descriptor?? [ 37.920243][ T371] usb 2-1: New USB device found, idVendor=056a, idProduct=0061, bcdDevice= 0.40 [ 37.929732][ T371] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.943077][ T371] usb 2-1: config 0 descriptor?? [ 37.970128][ T22] usb 3-1: New USB device found, idVendor=056a, idProduct=0061, bcdDevice= 0.40 [ 37.985361][ T22] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 38.000051][ T22] usb 3-1: config 0 descriptor?? [ 38.040117][ T12] usb 1-1: New USB device found, idVendor=056a, idProduct=0061, bcdDevice= 0.40 [ 38.050019][ T3222] usb 4-1: New USB device found, idVendor=056a, idProduct=0061, bcdDevice= 0.40 [ 38.052906][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 38.068522][ T3222] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 38.094634][ T12] usb 1-1: config 0 descriptor?? [ 38.117688][ T3222] usb 4-1: config 0 descriptor?? [ 38.232670][ T95] wacom 0003:056A:0061.0001: Unknown device_type for 'HID 056a:0061'. Assuming pen. [ 38.255790][ T95] input input5: In input_register_device [ 38.279872][ T95] input: Wacom PenStation2 Pen as /devices/platform/dummy_hcd.4/usb5/5-1/5-1:0.0/0003:056A:0061.0001/input/input5 [ 38.299024][ T95] input input5: Attached to handler evdev [ 38.310421][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 38.327417][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.344625][ T83] wacom 0003:056A:0061.0002: Unknown device_type for 'HID 056a:0061'. Assuming pen. [ 38.353066][ T95] Workqueue: usb_hub_wq hub_event [ 38.353086][ T95] Call Trace: [ 38.353103][ T95] dump_stack+0xef/0x16e [ 38.353116][ T95] input_attach_handler.cold+0xa8/0xad [ 38.353126][ T95] input_register_device+0xc4b/0xe53 [ 38.353139][ T95] wacom_parse_and_register+0x3841/0x5270 [ 38.353150][ T95] ? hid_open_report+0x466/0x640 [ 38.353161][ T95] ? wacom_battery_work+0x170/0x170 [ 38.353173][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 38.353188][ T95] wacom_probe+0x94d/0xba0 [ 38.390638][ T83] input input8: In input_register_device [ 38.391874][ T95] ? wacom_parse_and_register+0x5270/0x5270 [ 38.391887][ T95] hid_device_probe+0x2be/0x3f0 [ 38.391904][ T95] ? hid_match_device+0x1f0/0x1f0 [ 38.391917][ T95] really_probe+0x290/0xac0 [ 38.391928][ T95] driver_probe_device+0x223/0x350 [ 38.391937][ T95] __device_attach_driver+0x1d1/0x290 [ 38.391953][ T95] ? driver_allows_async_probing+0x160/0x160 [ 38.417814][ T83] input: Wacom PenStation2 Pen as /devices/platform/dummy_hcd.5/usb6/6-1/6-1:0.0/0003:056A:0061.0002/input/input8 [ 38.424102][ T95] bus_for_each_drv+0x162/0x1e0 [ 38.424118][ T95] ? bus_rescan_devices+0x20/0x20 [ 38.424132][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 38.424144][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 38.424155][ T95] __device_attach+0x217/0x390 [ 38.424166][ T95] ? device_bind_driver+0xd0/0xd0 [ 38.424177][ T95] bus_probe_device+0x1e4/0x290 [ 38.424188][ T95] device_add+0x1459/0x1bf0 [ 38.424200][ T95] ? device_link_remove+0x110/0x110 [ 38.424211][ T95] ? __debugfs_create_file+0x301/0x3f0 [ 38.424222][ T95] hid_add_device+0x33c/0x9a0 [ 38.424233][ T95] ? __hid_bus_reprobe_drivers+0x130/0x130 [ 38.424242][ T95] ? lockdep_init_map+0x1b0/0x5e0 [ 38.424258][ T95] usbhid_probe+0xa81/0xfa0 [ 38.471802][ T22] wacom 0003:056A:0061.0003: Unknown device_type for 'HID 056a:0061'. Assuming pen. [ 38.478686][ T95] usb_probe_interface+0x310/0x800 [ 38.498487][ T22] input input11: In input_register_device [ 38.508154][ T95] ? usb_probe_device+0x230/0x230 [ 38.508166][ T95] really_probe+0x290/0xac0 [ 38.508178][ T95] driver_probe_device+0x223/0x350 [ 38.508190][ T95] __device_attach_driver+0x1d1/0x290 [ 38.508202][ T95] ? driver_allows_async_probing+0x160/0x160 [ 38.508215][ T95] bus_for_each_drv+0x162/0x1e0 [ 38.508228][ T95] ? bus_rescan_devices+0x20/0x20 [ 38.508241][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 38.508252][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 38.508261][ T95] __device_attach+0x217/0x390 [ 38.508271][ T95] ? device_bind_driver+0xd0/0xd0 [ 38.508291][ T95] bus_probe_device+0x1e4/0x290 [ 38.538723][ T22] input: Wacom PenStation2 Pen as /devices/platform/dummy_hcd.2/usb3/3-1/3-1:0.0/0003:056A:0061.0003/input/input11 [ 38.546387][ T95] device_add+0x1459/0x1bf0 [ 38.546400][ T95] ? wait_for_completion+0x3c0/0x3c0 [ 38.546412][ T95] ? device_link_remove+0x110/0x110 [ 38.546423][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 38.546438][ T95] usb_set_configuration+0xece/0x1840 [ 38.546452][ T95] usb_generic_driver_probe+0x9d/0xe0 [ 38.546465][ T95] usb_probe_device+0xd9/0x230 [ 38.546477][ T95] ? usb_suspend+0x5f0/0x5f0 [ 38.546487][ T95] really_probe+0x290/0xac0 [ 38.546497][ T95] driver_probe_device+0x223/0x350 [ 38.546508][ T95] __device_attach_driver+0x1d1/0x290 [ 38.546520][ T95] ? driver_allows_async_probing+0x160/0x160 [ 38.546531][ T95] bus_for_each_drv+0x162/0x1e0 [ 38.546543][ T95] ? bus_rescan_devices+0x20/0x20 [ 38.546554][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 38.546566][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 38.546582][ T95] __device_attach+0x217/0x390 [ 38.601675][ T3222] wacom 0003:056A:0061.0004: Unknown device_type for 'HID 056a:0061'. Assuming pen. [ 38.626670][ T95] ? device_bind_driver+0xd0/0xd0 [ 38.626681][ T95] bus_probe_device+0x1e4/0x290 [ 38.626694][ T95] device_add+0x1459/0x1bf0 [ 38.626705][ T95] ? device_link_remove+0x110/0x110 [ 38.626716][ T95] usb_new_device.cold+0x540/0xcd0 [ 38.626725][ T95] hub_event+0x21cb/0x4300 [ 38.626737][ T95] ? hub_port_debounce+0x350/0x350 [ 38.626747][ T95] ? find_held_lock+0x2d/0x110 [ 38.626764][ T95] ? mark_held_locks+0xe0/0xe0 [ 38.653175][ T3222] input input14: In input_register_device [ 38.665471][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 38.665483][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 38.665496][ T95] process_one_work+0x94b/0x1620 [ 38.665512][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 38.665525][ T95] ? do_raw_spin_lock+0x129/0x290 [ 38.665538][ T95] worker_thread+0x96/0xe20 [ 38.665551][ T95] ? process_one_work+0x1620/0x1620 [ 38.665562][ T95] kthread+0x318/0x420 [ 38.665573][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 38.665585][ T95] ret_from_fork+0x24/0x30 [ 38.672345][ T371] wacom 0003:056A:0061.0005: Unknown device_type for 'HID 056a:0061'. Assuming pen. [ 38.685447][ T83] input input8: Attached to handler evdev [ 38.704804][ T371] input input17: In input_register_device [ 38.712685][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 38.724624][ T371] input: Wacom PenStation2 Pen as /devices/platform/dummy_hcd.1/usb2/2-1/2-1:0.0/0003:056A:0061.0005/input/input17 [ 38.745625][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.745643][ T83] Workqueue: usb_hub_wq hub_event [ 38.745649][ T83] Call Trace: [ 38.745666][ T83] dump_stack+0xef/0x16e [ 38.745680][ T83] input_attach_handler.cold+0xa8/0xad [ 38.745691][ T83] input_register_device+0xc4b/0xe53 [ 38.745703][ T83] wacom_parse_and_register+0x3841/0x5270 [ 38.745713][ T83] ? wacom_battery_work+0x170/0x170 [ 38.745732][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 39.180613][ T95] wacom 0003:056A:0061.0001: hidraw0: USB HID v0.00 Device [HID 056a:0061] on usb-dummy_hcd.4-1/input0 [ 39.183859][ T83] wacom_probe+0x94d/0xba0 [ 39.183872][ T83] ? wacom_parse_and_register+0x5270/0x5270 [ 39.183883][ T83] hid_device_probe+0x2be/0x3f0 [ 39.183895][ T83] ? hid_match_device+0x1f0/0x1f0 [ 39.183905][ T83] really_probe+0x290/0xac0 [ 39.183921][ T83] driver_probe_device+0x223/0x350 [ 39.216291][ T95] usb 5-1: USB disconnect, device number 2 [ 39.225360][ T83] __device_attach_driver+0x1d1/0x290 [ 39.225373][ T83] ? driver_allows_async_probing+0x160/0x160 [ 39.225386][ T83] bus_for_each_drv+0x162/0x1e0 [ 39.225400][ T83] ? bus_rescan_devices+0x20/0x20 [ 39.225414][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 39.225426][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 39.225435][ T83] __device_attach+0x217/0x390 [ 39.225445][ T83] ? device_bind_driver+0xd0/0xd0 [ 39.225454][ T83] bus_probe_device+0x1e4/0x290 [ 39.225472][ T83] device_add+0x1459/0x1bf0 [ 39.246473][ T95] usbhid 5-1:0.0: Stop: 1 1 0 0 [ 39.252189][ T83] ? device_link_remove+0x110/0x110 [ 39.252203][ T83] ? __debugfs_create_file+0x301/0x3f0 [ 39.252216][ T83] hid_add_device+0x33c/0x9a0 [ 39.252228][ T83] ? __hid_bus_reprobe_drivers+0x130/0x130 [ 39.252241][ T83] ? lockdep_init_map+0x1b0/0x5e0 [ 39.252253][ T83] usbhid_probe+0xa81/0xfa0 [ 39.252267][ T83] usb_probe_interface+0x310/0x800 [ 39.252278][ T83] ? usb_probe_device+0x230/0x230 [ 39.252287][ T83] really_probe+0x290/0xac0 [ 39.252304][ T83] driver_probe_device+0x223/0x350 [ 39.267146][ T95] ------------[ cut here ]------------ [ 39.278967][ T83] __device_attach_driver+0x1d1/0x290 [ 39.278980][ T83] ? driver_allows_async_probing+0x160/0x160 [ 39.278991][ T83] bus_for_each_drv+0x162/0x1e0 [ 39.279003][ T83] ? bus_rescan_devices+0x20/0x20 [ 39.279016][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 39.279027][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 39.279036][ T83] __device_attach+0x217/0x390 [ 39.279045][ T83] ? device_bind_driver+0xd0/0xd0 [ 39.279061][ T83] bus_probe_device+0x1e4/0x290 [ 39.293964][ T95] usbhid 5-1:0.0: Stop while open = 1 [ 39.302676][ T83] device_add+0x1459/0x1bf0 [ 39.302690][ T83] ? wait_for_completion+0x3c0/0x3c0 [ 39.302701][ T83] ? device_link_remove+0x110/0x110 [ 39.302711][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 39.302723][ T83] usb_set_configuration+0xece/0x1840 [ 39.302741][ T83] usb_generic_driver_probe+0x9d/0xe0 [ 39.312430][ T95] WARNING: CPU: 0 PID: 95 at drivers/hid/usbhid/hid-core.c:1205 usbhid_stop.cold+0x1fb/0x5e6 [ 39.324013][ T83] usb_probe_device+0xd9/0x230 [ 39.324031][ T83] ? usb_suspend+0x5f0/0x5f0 [ 39.334246][ T95] Kernel panic - not syncing: panic_on_warn set ... [ 39.344079][ T83] really_probe+0x290/0xac0 [ 40.034356][ T83] driver_probe_device+0x223/0x350 [ 40.042559][ T83] __device_attach_driver+0x1d1/0x290 [ 40.051335][ T83] ? driver_allows_async_probing+0x160/0x160 [ 40.060621][ T83] bus_for_each_drv+0x162/0x1e0 [ 40.071066][ T83] ? bus_rescan_devices+0x20/0x20 [ 40.078188][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 40.090085][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 40.100764][ T83] __device_attach+0x217/0x390 [ 40.112165][ T83] ? device_bind_driver+0xd0/0xd0 [ 40.117366][ T83] bus_probe_device+0x1e4/0x290 [ 40.122221][ T83] device_add+0x1459/0x1bf0 [ 40.126708][ T83] ? device_link_remove+0x110/0x110 [ 40.132583][ T83] usb_new_device.cold+0x540/0xcd0 [ 40.138373][ T83] hub_event+0x21cb/0x4300 [ 40.144802][ T83] ? hub_port_debounce+0x350/0x350 [ 40.151927][ T83] ? find_held_lock+0x2d/0x110 [ 40.159920][ T83] ? mark_held_locks+0xe0/0xe0 [ 40.165690][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.175158][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.183385][ T83] process_one_work+0x94b/0x1620 [ 40.190638][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.197348][ T83] ? do_raw_spin_lock+0x129/0x290 [ 40.203208][ T83] worker_thread+0x96/0xe20 [ 40.208065][ T83] ? process_one_work+0x1620/0x1620 [ 40.213811][ T83] kthread+0x318/0x420 [ 40.220219][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 40.231518][ T83] ret_from_fork+0x24/0x30 [ 40.235930][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc7-syzkaller #0 2020/04/19 01:45:14 executed programs: 6 [ 40.244278][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.245484][ T3222] input: Wacom PenStation2 Pen as /devices/platform/dummy_hcd.3/usb4/4-1/4-1:0.0/0003:056A:0061.0004/input/input14 [ 40.258790][ T95] Workqueue: usb_hub_wq hub_event [ 40.258798][ T95] Call Trace: [ 40.258816][ T95] dump_stack+0xef/0x16e [ 40.258830][ T95] ? usbhid_stop.cold+0x136/0x5e6 [ 40.258840][ T95] panic+0x2aa/0x6e1 [ 40.258849][ T95] ? add_taint.cold+0x16/0x16 [ 40.258860][ T95] ? __probe_kernel_read+0x188/0x1d0 [ 40.258869][ T95] ? __warn.cold+0x14/0x30 [ 40.258879][ T95] ? __warn+0xd5/0x1c8 [ 40.258889][ T95] ? usbhid_stop.cold+0x1fb/0x5e6 [ 40.258897][ T95] __warn.cold+0x2f/0x30 [ 40.258906][ T95] ? usbhid_stop.cold+0x1fb/0x5e6 [ 40.258921][ T95] report_bug+0x27b/0x2f0 [ 40.282971][ T83] wacom 0003:056A:0061.0002: hidraw0: USB HID v0.00 Device [HID 056a:0061] on usb-dummy_hcd.5-1/input0 [ 40.287457][ T95] do_error_trap+0x12b/0x1e0 [ 40.287471][ T95] ? usbhid_stop.cold+0x1fb/0x5e6 [ 40.287480][ T95] do_invalid_op+0x32/0x40 [ 40.287495][ T95] ? usbhid_stop.cold+0x1fb/0x5e6 [ 40.298845][ T22] input input11: Attached to handler evdev [ 40.303647][ T95] invalid_op+0x23/0x30 [ 40.303663][ T95] RIP: 0010:usbhid_stop.cold+0x1fb/0x5e6 [ 40.303675][ T95] Code: 48 89 7c 24 08 e8 7b 87 bd fc 48 8b 7c 24 08 e8 a1 57 f7 fd 48 8b 14 24 44 89 f1 48 c7 c7 60 3d 84 86 48 89 c6 e8 23 18 92 fc <0f> 0b e8 54 87 bd fc 48 8d bb ac 1e 00 00 b8 ff ff 37 00 48 89 fa [ 40.303687][ T95] RSP: 0018:ffff8881d5cbf640 EFLAGS: 00010282 [ 40.460545][ T95] RAX: 0000000000000000 RBX: ffff8881bcd1c000 RCX: 0000000000000000 [ 40.471428][ T95] RDX: 0000000000000000 RSI: ffffffff812974dd RDI: ffffed103ab97eba [ 40.481049][ T95] RBP: ffff8881ccac4000 R08: ffff8881d712e200 R09: ffffed103b646248 [ 40.490631][ T95] R10: ffffed103b646247 R11: ffff8881db23123f R12: ffff8881ccac4008 [ 40.500357][ T95] R13: ffff8881d8859000 R14: 0000000000000001 R15: ffff8881bcd1dfd8 [ 40.509391][ T95] ? vprintk_func+0x7d/0x113 [ 40.516537][ T95] wacom_remove+0x88/0x3b0 [ 40.523400][ T95] hid_device_remove+0xed/0x1d0 [ 40.530166][ T95] ? wacom_close+0x80/0x80 [ 40.535614][ T95] ? hid_compare_device_paths+0xc0/0xc0 [ 40.542532][ T95] device_release_driver_internal+0x231/0x500 [ 40.549639][ T95] bus_remove_device+0x2eb/0x5a0 [ 40.556303][ T95] device_del+0x481/0xd30 [ 40.562182][ T95] ? device_create_with_groups+0x120/0x120 [ 40.571233][ T95] ? do_raw_spin_lock+0x129/0x290 [ 40.579381][ T95] hid_destroy_device+0xe1/0x150 [ 40.587409][ T95] usbhid_disconnect+0x9f/0xe0 [ 40.594620][ T95] usb_unbind_interface+0x1bd/0x8a0 [ 40.603250][ T95] ? __pm_runtime_idle+0xd1/0x310 [ 40.611424][ T95] ? usb_autoresume_device+0x60/0x60 [ 40.622079][ T95] device_release_driver_internal+0x42f/0x500 [ 40.630565][ T95] bus_remove_device+0x2eb/0x5a0 [ 40.638808][ T95] device_del+0x481/0xd30 [ 40.645469][ T95] ? device_create_with_groups+0x120/0x120 [ 40.656224][ T95] ? usb_remove_ep_devs+0x3e/0x80 [ 40.662834][ T95] ? remove_intf_ep_devs+0x13f/0x1d0 [ 40.670632][ T95] usb_disable_device+0x23d/0x790 [ 40.678181][ T95] usb_disconnect+0x293/0x900 [ 40.684677][ T95] hub_event+0x1a1d/0x4300 [ 40.689622][ T95] ? hub_port_debounce+0x350/0x350 [ 40.699178][ T95] ? find_held_lock+0x2d/0x110 [ 40.707580][ T95] ? mark_held_locks+0xe0/0xe0 [ 40.713571][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.720239][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.726032][ T95] process_one_work+0x94b/0x1620 [ 40.731781][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.738127][ T95] ? do_raw_spin_lock+0x129/0x290 [ 40.744360][ T95] worker_thread+0x7ab/0xe20 [ 40.750675][ T95] ? process_one_work+0x1620/0x1620 [ 40.756480][ T95] kthread+0x318/0x420 [ 40.761451][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 40.771835][ T95] ret_from_fork+0x24/0x30 [ 40.776351][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.6.0-rc7-syzkaller #0 [ 40.789112][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.804469][ T22] Workqueue: usb_hub_wq hub_event [ 40.813422][ T22] Call Trace: [ 40.818370][ T22] dump_stack+0xef/0x16e [ 40.823917][ T22] input_attach_handler.cold+0xa8/0xad [ 40.832822][ T22] input_register_device+0xc4b/0xe53 [ 40.838717][ T22] wacom_parse_and_register+0x3841/0x5270 [ 40.846418][ T22] ? wacom_battery_work+0x170/0x170 [ 40.853320][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.860194][ T22] wacom_probe+0x94d/0xba0 [ 40.864873][ T22] ? wacom_parse_and_register+0x5270/0x5270 [ 40.870842][ T22] hid_device_probe+0x2be/0x3f0 [ 40.876766][ T22] ? hid_match_device+0x1f0/0x1f0 [ 40.885375][ T22] really_probe+0x290/0xac0 [ 40.891085][ T22] driver_probe_device+0x223/0x350 [ 40.898377][ T22] __device_attach_driver+0x1d1/0x290 [ 40.906436][ T22] ? driver_allows_async_probing+0x160/0x160 [ 40.913521][ T22] bus_for_each_drv+0x162/0x1e0 [ 40.919367][ T22] ? bus_rescan_devices+0x20/0x20 [ 40.926644][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 40.933685][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 40.941025][ T22] __device_attach+0x217/0x390 [ 40.946239][ T22] ? device_bind_driver+0xd0/0xd0 [ 40.952919][ T22] bus_probe_device+0x1e4/0x290 [ 40.958864][ T22] device_add+0x1459/0x1bf0 [ 40.965358][ T22] ? device_link_remove+0x110/0x110 [ 40.970716][ T22] ? __debugfs_create_file+0x301/0x3f0 [ 40.978524][ T22] hid_add_device+0x33c/0x9a0 [ 40.984125][ T22] ? __hid_bus_reprobe_drivers+0x130/0x130 [ 40.990569][ T22] ? lockdep_init_map+0x1b0/0x5e0 [ 41.000458][ T22] usbhid_probe+0xa81/0xfa0 [ 41.006185][ T22] usb_probe_interface+0x310/0x800 [ 41.015662][ T22] ? usb_probe_device+0x230/0x230 [ 41.025049][ T22] really_probe+0x290/0xac0 [ 41.031667][ T22] driver_probe_device+0x223/0x350 [ 41.038339][ T22] __device_attach_driver+0x1d1/0x290 [ 41.043698][ T22] ? driver_allows_async_probing+0x160/0x160 [ 41.050855][ T22] bus_for_each_drv+0x162/0x1e0 [ 41.057198][ T22] ? bus_rescan_devices+0x20/0x20 [ 41.064320][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 41.072270][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 41.078433][ T22] __device_attach+0x217/0x390 [ 41.085940][ T22] ? device_bind_driver+0xd0/0xd0 [ 41.092973][ T22] bus_probe_device+0x1e4/0x290 [ 41.098689][ T22] device_add+0x1459/0x1bf0 [ 41.103350][ T22] ? wait_for_completion+0x3c0/0x3c0 [ 41.108964][ T22] ? device_link_remove+0x110/0x110 [ 41.114162][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 41.121474][ T22] usb_set_configuration+0xece/0x1840 [ 41.129141][ T22] usb_generic_driver_probe+0x9d/0xe0 [ 41.135902][ T22] usb_probe_device+0xd9/0x230 [ 41.142294][ T22] ? usb_suspend+0x5f0/0x5f0 [ 41.149686][ T22] really_probe+0x290/0xac0 [ 41.158808][ T22] driver_probe_device+0x223/0x350 [ 41.166198][ T22] __device_attach_driver+0x1d1/0x290 [ 41.171640][ T22] ? driver_allows_async_probing+0x160/0x160 [ 41.179621][ T22] bus_for_each_drv+0x162/0x1e0 [ 41.186082][ T22] ? bus_rescan_devices+0x20/0x20 [ 41.194458][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 41.201451][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 41.210324][ T22] __device_attach+0x217/0x390 [ 41.217100][ T22] ? device_bind_driver+0xd0/0xd0 [ 41.224763][ T22] bus_probe_device+0x1e4/0x290 [ 41.232346][ T22] device_add+0x1459/0x1bf0 [ 41.239290][ T22] ? device_link_remove+0x110/0x110 [ 41.247742][ T22] usb_new_device.cold+0x540/0xcd0 [ 41.255462][ T22] hub_event+0x21cb/0x4300 [ 41.260051][ T22] ? hub_port_debounce+0x350/0x350 [ 41.265596][ T22] ? find_held_lock+0x2d/0x110 [ 41.271047][ T22] ? mark_held_locks+0xe0/0xe0 [ 41.278844][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.284689][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.294877][ T22] process_one_work+0x94b/0x1620 [ 41.302439][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.308542][ T22] ? do_raw_spin_lock+0x129/0x290 [ 41.315192][ T22] worker_thread+0x96/0xe20 [ 41.319696][ T22] ? process_one_work+0x1620/0x1620 [ 41.327418][ T22] kthread+0x318/0x420 [ 41.332413][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 41.340643][ T22] ret_from_fork+0x24/0x30 [ 41.346673][ T95] Kernel Offset: disabled [ 41.352496][ T95] Rebooting in 86400 seconds..