[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.987073][ T2646] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 37.356935][ T2646] usb 1-1: config 16 has an invalid interface number: 138 but max is 0 [ 37.365322][ T2646] usb 1-1: config 16 has no interface number 0 [ 37.536861][ T2646] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=9e.43 [ 37.545965][ T2646] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 37.554274][ T2646] usb 1-1: Product: syz [ 37.558559][ T2646] usb 1-1: Manufacturer: syz [ 37.563168][ T2646] usb 1-1: SerialNumber: syz [ 37.609892][ T2646] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 37.827333][ T2372] pvrusb2: Invalid write control endpoint [ 37.829096][ T2646] usb 1-1: USB disconnect, device number 2 [ 37.889597][ T2372] pvrusb2: Invalid write control endpoint [ 37.895601][ T2372] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 37.907806][ T2372] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 37.915391][ T2372] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 37.925524][ T2372] pvrusb2: Device being rendered inoperable [ 37.933999][ T2372] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 37.941879][ T2372] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 37.951706][ T2372] pvrusb2: Attached sub-driver cx25840 [ 37.962857][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 37.971828][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 37.980628][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 37.989544][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 37.997781][ T2372] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 38.031046][ T2372] TUNER: Unable to find symbol tda829x_probe() [ 38.043476][ T2372] DVB: Unable to find symbol tda9887_attach() [ 38.049692][ T2372] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 38.058509][ T2372] pvrusb2: Attached sub-driver tuner [ 38.063870][ T2372] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 38.077322][ T2372] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 38.456351][ T2646] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 38.816216][ T2646] usb 1-1: config 16 has an invalid interface number: 138 but max is 0 [ 38.824548][ T2646] usb 1-1: config 16 has no interface number 0 [ 38.986209][ T2646] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=9e.43 [ 38.995256][ T2646] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.003315][ T2646] usb 1-1: Product: syz [ 39.007568][ T2646] usb 1-1: Manufacturer: syz [ 39.012173][ T2646] usb 1-1: SerialNumber: syz [ 39.068058][ T2646] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 39.287262][ T2372] pvrusb2: Invalid write control endpoint [ 39.293427][ T2646] usb 1-1: USB disconnect, device number 3 [ 39.308511][ T2372] pvrusb2: Invalid write control endpoint [ 39.314263][ T2372] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 39.323692][ T2372] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 39.331319][ T2372] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 39.341624][ T2372] pvrusb2: Device being rendered inoperable [ 39.348379][ T2372] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 39.355436][ T2372] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 39.364582][ T2372] pvrusb2: Attached sub-driver cx25840 [ 39.375511][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 39.383747][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 39.391989][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 39.400144][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 39.408214][ T2372] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 39.440242][ T2372] TUNER: Unable to find symbol tda829x_probe() [ 39.452656][ T2372] DVB: Unable to find symbol tda9887_attach() [ 39.458937][ T2372] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 39.466957][ T2372] pvrusb2: Attached sub-driver tuner [ 39.472251][ T2372] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 39.485501][ T2372] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 39.865664][ T2646] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 40.225625][ T2646] usb 1-1: config 16 has an invalid interface number: 138 but max is 0 [ 40.234190][ T2646] usb 1-1: config 16 has no interface number 0 [ 40.395609][ T2646] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=9e.43 [ 40.405726][ T2646] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 40.415873][ T2646] usb 1-1: Product: syz [ 40.420506][ T2646] usb 1-1: Manufacturer: syz [ 40.425250][ T2646] usb 1-1: SerialNumber: syz [ 40.467751][ T2646] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 40.685858][ T2372] pvrusb2: Invalid write control endpoint [ 40.687240][ T2646] usb 1-1: USB disconnect, device number 4 [ 40.714436][ T2372] pvrusb2: Invalid write control endpoint [ 40.721268][ T2372] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 40.731459][ T2372] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 40.743167][ T2372] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 40.755058][ T2372] pvrusb2: Device being rendered inoperable [ 40.763653][ T2372] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 40.772259][ T2372] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 40.781547][ T2372] pvrusb2: Attached sub-driver cx25840 [ 40.793296][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 40.802156][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 40.811691][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 40.821709][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 40.831146][ T2372] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 40.868630][ T2372] TUNER: Unable to find symbol tda829x_probe() [ 40.881879][ T2372] DVB: Unable to find symbol tda9887_attach() [ 40.889951][ T2372] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 40.899615][ T2372] pvrusb2: Attached sub-driver tuner [ 40.905021][ T2372] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 40.919481][ T2372] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 41.305344][ T2646] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 41.665125][ T2646] usb 1-1: config 16 has an invalid interface number: 138 but max is 0 [ 41.675080][ T2646] usb 1-1: config 16 has no interface number 0 [ 41.835143][ T2646] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=9e.43 [ 41.846047][ T2646] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 41.857960][ T2646] usb 1-1: Product: syz [ 41.865283][ T2646] usb 1-1: Manufacturer: syz [ 41.873518][ T2646] usb 1-1: SerialNumber: syz [ 41.927297][ T2646] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 42.145049][ T2372] pvrusb2: Invalid write control endpoint [ 42.146073][ T2646] usb 1-1: USB disconnect, device number 5 [ 42.176777][ T2372] pvrusb2: Invalid write control endpoint [ 42.183850][ T2372] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 42.194656][ T2372] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 42.204537][ T2372] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 42.217022][ T2372] pvrusb2: Device being rendered inoperable [ 42.224440][ T2372] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 42.234303][ T2372] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 42.245605][ T2372] pvrusb2: Attached sub-driver cx25840 [ 42.259138][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 42.271413][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 42.281883][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 42.291939][ T2372] pvrusb2: Attempted to execute control transfer when device not ok [ 42.302147][ T2372] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 42.343440][ T2372] TUNER: Unable to find symbol tda829x_probe() [ 42.361119][ T2372] DVB: Unable to find symbol tda9887_attach() [ 42.371898][ T2372] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 42.389068][ T2372] pvrusb2: Attached sub-driver tuner [ 42.402078][ T2372] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 42.432527][ T2372] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 42.470088][ T2372] ------------[ cut here ]------------ [ 42.476985][ T2372] sysfs group 'power' not found for kobject '0-0044' [ 42.488034][ T2372] WARNING: CPU: 1 PID: 2372 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 [ 42.500654][ T2372] Modules linked in: [ 42.506760][ T2372] CPU: 1 PID: 2372 Comm: pvrusb2-context Not tainted 5.10.0-rc7-syzkaller #0 [ 42.516823][ T2372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.531065][ T2372] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 42.538915][ T2372] Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 a0 59 f2 85 e8 65 b8 e0 03 <0f> 0b eb 98 e8 d1 69 d6 ff e9 01 ff ff ff 48 89 df e8 c4 69 d6 ff [ 42.565602][ T2372] RSP: 0018:ffffc900060f7b80 EFLAGS: 00010286 [ 42.573592][ T2372] RAX: 0000000000000000 RBX: ffffffff861bdb60 RCX: 0000000000000000 [ 42.584392][ T2372] RDX: ffff888109806500 RSI: ffffffff8128f483 RDI: fffff52000c1ef62 [ 42.595291][ T2372] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8881f6b2f5cf [ 42.604922][ T2372] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881038e7020 [ 42.615281][ T2372] R13: ffffffff861be100 R14: 1ffff92000c1ef98 R15: dffffc0000000000 [ 42.625083][ T2372] FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 [ 42.637647][ T2372] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.645191][ T2372] CR2: 000055ae02c809b8 CR3: 0000000108f4e000 CR4: 00000000001506e0 [ 42.655210][ T2372] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.664800][ T2372] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.675928][ T2372] Call Trace: [ 42.679765][ T2372] ? i2c_adapter_lock_bus+0x130/0x130 [ 42.686213][ T2372] dpm_sysfs_remove+0x97/0xb0 [ 42.692125][ T2372] device_del+0x20c/0xec0 [ 42.699010][ T2372] ? device_link_add_missing_supplier_links+0x370/0x370 [ 42.710546][ T2372] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 42.719884][ T2372] ? _raw_spin_unlock_irqrestore+0x34/0x40 [ 42.730365][ T2372] ? trace_hardirqs_on+0x5b/0x1a0 [ 42.738130][ T2372] ? i2c_adapter_lock_bus+0x130/0x130 [ 42.749659][ T2372] device_unregister+0x22/0xc0 [ 42.758721][ T2372] ? i2c_adapter_lock_bus+0x130/0x130 [ 42.766981][ T2372] __unregister_client+0x95/0xa0 [ 42.776437][ T2372] device_for_each_child+0xf9/0x170 [ 42.787059][ T2372] ? device_remove_class_symlinks+0x210/0x210 [ 42.796000][ T2372] i2c_del_adapter+0x37b/0x680 [ 42.803836][ T2372] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 42.812800][ T2372] pvr2_i2c_core_done+0x69/0xc0 [ 42.819571][ T2372] pvr2_hdw_destroy+0x179/0x3b0 [ 42.829656][ T2372] pvr2_context_destroy+0x84/0x230 [ 42.838774][ T2372] pvr2_context_thread_func+0x64b/0x850 [ 42.846635][ T2372] ? pvr2_context_destroy+0x230/0x230 [ 42.856416][ T2372] ? add_wait_queue_exclusive+0x180/0x180 [ 42.865482][ T2372] ? __kthread_parkme+0x118/0x1d0 [ 42.873947][ T2372] ? pvr2_context_destroy+0x230/0x230 [ 42.884110][ T2372] kthread+0x38c/0x460 [ 42.892531][ T2372] ? _raw_spin_unlock_irq+0x1f/0x30 [ 42.904092][ T2372] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 42.916862][ T2372] ret_from_fork+0x1f/0x30 [ 42.924616][ T2372] Kernel panic - not syncing: panic_on_warn set ... [ 42.937708][ T2372] CPU: 1 PID: 2372 Comm: pvrusb2-context Not tainted 5.10.0-rc7-syzkaller #0 [ 42.955918][ T2372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.974368][ T2372] Call Trace: [ 42.980089][ T2372] dump_stack+0x107/0x163 [ 42.986754][ T2372] panic+0x306/0x73d [ 42.992792][ T2372] ? __warn_printk+0xf3/0xf3 [ 42.999279][ T2372] ? __warn.cold+0x1a/0x44 [ 43.004670][ T2372] ? __warn+0xf1/0x210 [ 43.010515][ T2372] ? sysfs_remove_group+0x126/0x170 [ 43.017455][ T2372] __warn.cold+0x35/0x44 [ 43.024033][ T2372] ? irq_work_queue+0x44/0x50 [ 43.029925][ T2372] ? sysfs_remove_group+0x126/0x170 [ 43.037214][ T2372] report_bug+0x1bd/0x210 [ 43.042980][ T2372] handle_bug+0x3c/0x60 [ 43.047950][ T2372] exc_invalid_op+0x14/0x40 [ 43.054692][ T2372] asm_exc_invalid_op+0x12/0x20 [ 43.061711][ T2372] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 43.072066][ T2372] Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 a0 59 f2 85 e8 65 b8 e0 03 <0f> 0b eb 98 e8 d1 69 d6 ff e9 01 ff ff ff 48 89 df e8 c4 69 d6 ff [ 43.097632][ T2372] RSP: 0018:ffffc900060f7b80 EFLAGS: 00010286 [ 43.105087][ T2372] RAX: 0000000000000000 RBX: ffffffff861bdb60 RCX: 0000000000000000 [ 43.115153][ T2372] RDX: ffff888109806500 RSI: ffffffff8128f483 RDI: fffff52000c1ef62 [ 43.126943][ T2372] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8881f6b2f5cf [ 43.136851][ T2372] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881038e7020 [ 43.146685][ T2372] R13: ffffffff861be100 R14: 1ffff92000c1ef98 R15: dffffc0000000000 [ 43.155733][ T2372] ? vprintk_func+0x93/0x140 [ 43.161489][ T2372] ? i2c_adapter_lock_bus+0x130/0x130 [ 43.172897][ T2372] dpm_sysfs_remove+0x97/0xb0 [ 43.183070][ T2372] device_del+0x20c/0xec0 [ 43.192894][ T2372] ? device_link_add_missing_supplier_links+0x370/0x370 [ 43.205612][ T2372] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 43.216726][ T2372] ? _raw_spin_unlock_irqrestore+0x34/0x40 [ 43.225286][ T2372] ? trace_hardirqs_on+0x5b/0x1a0 [ 43.235053][ T2372] ? i2c_adapter_lock_bus+0x130/0x130 [ 43.243641][ T2372] device_unregister+0x22/0xc0 [ 43.249857][ T2372] ? i2c_adapter_lock_bus+0x130/0x130 [ 43.257239][ T2372] __unregister_client+0x95/0xa0 [ 43.269606][ T2372] device_for_each_child+0xf9/0x170 [ 43.277569][ T2372] ? device_remove_class_symlinks+0x210/0x210 [ 43.287631][ T2372] i2c_del_adapter+0x37b/0x680 [ 43.294214][ T2372] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 43.301560][ T2372] pvr2_i2c_core_done+0x69/0xc0 [ 43.306605][ T2372] pvr2_hdw_destroy+0x179/0x3b0 [ 43.312949][ T2372] pvr2_context_destroy+0x84/0x230 [ 43.321549][ T2372] pvr2_context_thread_func+0x64b/0x850 [ 43.328940][ T2372] ? pvr2_context_destroy+0x230/0x230 [ 43.336401][ T2372] ? add_wait_queue_exclusive+0x180/0x180 [ 43.344713][ T2372] ? __kthread_parkme+0x118/0x1d0 [ 43.350735][ T2372] ? pvr2_context_destroy+0x230/0x230 [ 43.356815][ T2372] kthread+0x38c/0x460 [ 43.361606][ T2372] ? _raw_spin_unlock_irq+0x1f/0x30 [ 43.367338][ T2372] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 43.373823][ T2372] ret_from_fork+0x1f/0x30 [ 43.385950][ T2372] Kernel Offset: disabled [ 43.396614][ T2372] Rebooting in 86400 seconds..