Warning: Permanently added '10.128.0.122' (ECDSA) to the list of known hosts. syzkaller login: [ 89.589740][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 89.829725][ T21] usb 1-1: Using ep0 maxpacket: 8 [ 89.949771][ T21] usb 1-1: config 1 has an invalid interface number: 111 but max is 0 [ 89.958305][ T21] usb 1-1: config 1 has no interface number 0 [ 89.964512][ T21] usb 1-1: New USB device found, idVendor=1164, idProduct=0602, bcdDevice=6e.b4 [ 89.973597][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 90.229790][ T21] usb 1-1: string descriptor 0 read error: -71 [ 90.237835][ T21] pvrusb2: Hardware description: Gotview USB 2.0 DVD Deluxe [ 90.260509][ T108] pvrusb2: Invalid write control endpoint [ 90.266884][ T21] usb 1-1: USB disconnect, device number 2 [ 90.276611][ T108] pvrusb2: Invalid write control endpoint [ 90.282444][ T108] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 90.291373][ T108] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 90.298469][ T108] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 90.308153][ T108] pvrusb2: Device being rendered inoperable [ 90.314529][ T108] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 90.321837][ T108] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 90.330524][ T108] pvrusb2: Attached sub-driver cx25840 [ 90.339815][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 90.347910][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 90.356466][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 90.364889][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 90.373084][ T108] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD Deluxe failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 90.394551][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 90.403252][ T108] tda9887 0-0043: creating new instance [ 90.408972][ T108] tda9887 0-0043: tda988[5/6/7] found [ 90.414662][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 90.422727][ T108] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 90.429744][ T108] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 90.436822][ T108] pvrusb2: Attached sub-driver tuner [ 90.442227][ T108] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 90.455121][ T108] 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. [ 90.476316][ T108] ------------[ cut here ]------------ [ 90.481916][ T108] sysfs group 'power' not found for kobject '0-0043' [ 90.488774][ T108] WARNING: CPU: 0 PID: 108 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 90.498045][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 90.504683][ T108] CPU: 0 PID: 108 Comm: pvrusb2-context Not tainted 5.2.0-rc6+ #13 [ 90.512552][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.522731][ T108] Call Trace: [ 90.526132][ T108] dump_stack+0xca/0x13e [ 90.530450][ T108] ? sysfs_remove_group+0x110/0x1b0 [ 90.535641][ T108] panic+0x292/0x6c9 [ 90.539535][ T108] ? __warn_printk+0xf3/0xf3 [ 90.544117][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 90.549398][ T108] ? __probe_kernel_read+0x16c/0x1b0 [ 90.554674][ T108] ? __warn.cold+0x5/0x4b [ 90.559028][ T108] ? __warn+0xe4/0x1c0 [ 90.563082][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 90.568256][ T108] __warn.cold+0x20/0x4b [ 90.572490][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 90.577676][ T108] report_bug+0x262/0x2a0 [ 90.582089][ T108] do_error_trap+0x12b/0x1e0 [ 90.586806][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 90.592258][ T108] do_invalid_op+0x32/0x40 [ 90.596809][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 90.602207][ T108] invalid_op+0x14/0x20 [ 90.606561][ T108] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 90.612356][ T108] 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 41 48 8b 33 48 c7 c7 e0 4a d0 85 e8 16 1a 8c ff <0f> 0b eb 95 e8 22 46 dc ff e9 d2 fe ff ff 48 89 df e8 15 46 dc ff [ 90.631945][ T108] RSP: 0018:ffff8881d43f7b68 EFLAGS: 00010286 [ 90.637998][ T108] RAX: 0000000000000000 RBX: ffffffff85f24140 RCX: 0000000000000000 [ 90.645955][ T108] RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103a87ef5f [ 90.653913][ T108] RBP: 0000000000000000 R08: ffff8881d469c800 R09: ffffed103b643ed7 [ 90.661914][ T108] R10: ffffed103b643ed6 R11: ffff8881db21f6b7 R12: ffff8881d04d4ca0 [ 90.669880][ T108] R13: ffffffff85f246e0 R14: 1ffff1103a87ef98 R15: ffff8881d04d4ce8 [ 90.678124][ T108] ? vprintk_func+0x7d/0x113 [ 90.682746][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 90.688115][ T108] dpm_sysfs_remove+0x97/0xb0 [ 90.692881][ T108] device_del+0x172/0xb80 [ 90.697198][ T108] ? __kasan_slab_free+0x145/0x180 [ 90.702290][ T108] ? kfree_const+0x51/0x60 [ 90.706796][ T108] ? __device_links_no_driver+0x240/0x240 [ 90.712579][ T108] ? kfree_const+0x51/0x60 [ 90.716984][ T108] ? kobject_put+0x18c/0x280 [ 90.721672][ T108] device_unregister+0x11/0x30 [ 90.726756][ T108] i2c_unregister_device+0x13f/0x180 [ 90.732186][ T108] ? i2c_check_mux_children+0xa0/0xa0 [ 90.737619][ T108] __unregister_client+0x78/0x90 [ 90.742632][ T108] device_for_each_child+0xf9/0x170 [ 90.747904][ T108] ? device_remove_class_symlinks+0x210/0x210 [ 90.749784][ T21] dummy_hcd dummy_hcd.0: port status 0x00100503 has changes [ 90.753970][ T108] ? __radix_tree_lookup+0x1ed/0x260 [ 90.766633][ T108] i2c_del_adapter+0x2b2/0x550 [ 90.771401][ T108] ? del_timer_sync+0x121/0x130 [ 90.776452][ T108] pvr2_i2c_core_done+0x69/0xb6 [ 90.781298][ T108] pvr2_hdw_destroy+0x179/0x370 [ 90.786135][ T108] pvr2_context_destroy+0x84/0x230 [ 90.791441][ T108] pvr2_context_thread_func+0x657/0x860 [ 90.797057][ T108] ? lock_acquire+0x100/0x2b0 [ 90.801715][ T108] ? pvr2_context_destroy+0x230/0x230 [ 90.807177][ T108] ? finish_wait+0x260/0x260 [ 90.811755][ T108] ? lockdep_hardirqs_on+0x379/0x580 [ 90.817033][ T108] ? __kthread_parkme+0xfd/0x1b0 [ 90.821963][ T108] ? pvr2_context_destroy+0x230/0x230 [ 90.827415][ T108] kthread+0x30b/0x410 [ 90.829730][ T21] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 90.831475][ T108] ? kthread_park+0x1a0/0x1a0 [ 90.831490][ T108] ret_from_fork+0x24/0x30 [ 90.839407][ T108] Kernel Offset: disabled [ 90.858416][ T108] Rebooting in 86400 seconds..