Warning: Permanently added '10.128.15.199' (ECDSA) to the list of known hosts. syzkaller login: [ 57.705035][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 58.065039][ T12] usb 1-1: config 0 has an invalid interface number: 161 but max is 0 [ 58.073287][ T12] usb 1-1: config 0 has no interface number 0 [ 58.079441][ T12] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=92.10 [ 58.088522][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.098352][ T12] usb 1-1: config 0 descriptor?? [ 58.355172][ T12] usb 1-1: string descriptor 0 read error: -71 [ 58.363589][ T12] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 58.385529][ T108] pvrusb2: Invalid write control endpoint [ 58.391708][ T12] usb 1-1: USB disconnect, device number 2 [ 58.403651][ T108] pvrusb2: Invalid write control endpoint [ 58.409542][ T108] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 58.418462][ T108] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 58.425598][ T108] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 58.435159][ T108] pvrusb2: Device being rendered inoperable [ 58.441340][ T108] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 58.448498][ T108] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 58.457617][ T108] pvrusb2: Attached sub-driver cx25840 [ 58.467238][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.475625][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.483625][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.491827][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.499847][ T108] 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. [ 58.520555][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.529124][ T108] tda9887 0-0043: creating new instance [ 58.534749][ T108] tda9887 0-0043: tda988[5/6/7] found [ 58.540327][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.548519][ T108] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 58.555479][ T108] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 58.562564][ T108] pvrusb2: Attached sub-driver tuner [ 58.567918][ T108] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 58.580698][ 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. [ 58.602955][ T108] ------------[ cut here ]------------ [ 58.608576][ T108] sysfs group 'power' not found for kobject '0-0043' [ 58.615504][ T108] WARNING: CPU: 1 PID: 108 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 58.624688][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 58.631252][ T108] CPU: 1 PID: 108 Comm: pvrusb2-context Not tainted 5.2.0-rc6+ #13 [ 58.639117][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.649170][ T108] Call Trace: [ 58.652433][ T108] dump_stack+0xca/0x13e [ 58.656787][ T108] ? sysfs_remove_group+0x110/0x1b0 [ 58.662011][ T108] panic+0x292/0x6c9 [ 58.665886][ T108] ? __warn_printk+0xf3/0xf3 [ 58.670490][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 58.675683][ T108] ? __probe_kernel_read+0x16c/0x1b0 [ 58.681018][ T108] ? __warn.cold+0x5/0x4b [ 58.685328][ T108] ? __warn+0xe4/0x1c0 [ 58.689373][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 58.694549][ T108] __warn.cold+0x20/0x4b [ 58.698769][ T108] ? __irq_work_queue_local+0xa3/0xe0 [ 58.704119][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 58.709315][ T108] report_bug+0x262/0x2a0 [ 58.713643][ T108] do_error_trap+0x12b/0x1e0 [ 58.718214][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 58.723492][ T108] do_invalid_op+0x32/0x40 [ 58.727895][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 58.733186][ T108] invalid_op+0x14/0x20 [ 58.737322][ T108] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 58.743102][ 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 [ 58.762685][ T108] RSP: 0018:ffff8881d43c7b68 EFLAGS: 00010286 [ 58.768725][ T108] RAX: 0000000000000000 RBX: ffffffff85f24140 RCX: 0000000000000000 [ 58.776673][ T108] RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103a878f5f [ 58.784625][ T108] RBP: 0000000000000000 R08: ffff8881d44ac800 R09: ffffed103b665d30 [ 58.792576][ T108] R10: ffffed103b665d2f R11: ffff8881db32e97f R12: ffff8881d0436620 [ 58.800525][ T108] R13: ffffffff85f246e0 R14: 1ffff1103a878f98 R15: ffff8881d0436668 [ 58.808493][ T108] ? vprintk_func+0x7d/0x113 [ 58.813066][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 58.818241][ T108] dpm_sysfs_remove+0x97/0xb0 [ 58.822894][ T108] device_del+0x172/0xb80 [ 58.827207][ T108] ? __kasan_slab_free+0x145/0x180 [ 58.832295][ T108] ? kfree_const+0x51/0x60 [ 58.836689][ T108] ? __device_links_no_driver+0x240/0x240 [ 58.842381][ T108] ? kfree_const+0x51/0x60 [ 58.846790][ T108] ? kobject_put+0x18c/0x280 [ 58.851354][ T108] device_unregister+0x11/0x30 [ 58.856095][ T108] i2c_unregister_device+0x13f/0x180 [ 58.861373][ T108] ? i2c_check_mux_children+0xa0/0xa0 [ 58.866720][ T108] __unregister_client+0x78/0x90 [ 58.871635][ T108] device_for_each_child+0xf9/0x170 [ 58.876838][ T108] ? device_remove_class_symlinks+0x210/0x210 [ 58.882887][ T108] ? __radix_tree_lookup+0x1ed/0x260 [ 58.885896][ T12] dummy_hcd dummy_hcd.0: port status 0x00100503 has changes [ 58.888192][ T108] i2c_del_adapter+0x2b2/0x550 [ 58.900322][ T108] ? del_timer_sync+0x121/0x130 [ 58.905179][ T108] pvr2_i2c_core_done+0x69/0xb6 [ 58.910024][ T108] pvr2_hdw_destroy+0x179/0x370 [ 58.915064][ T108] pvr2_context_destroy+0x84/0x230 [ 58.920163][ T108] pvr2_context_thread_func+0x657/0x860 [ 58.925687][ T108] ? lock_acquire+0x100/0x2b0 [ 58.930342][ T108] ? pvr2_context_destroy+0x230/0x230 [ 58.935689][ T108] ? finish_wait+0x260/0x260 [ 58.940256][ T108] ? lockdep_hardirqs_on+0x379/0x580 [ 58.945520][ T108] ? __kthread_parkme+0xfd/0x1b0 [ 58.950437][ T108] ? pvr2_context_destroy+0x230/0x230 [ 58.955785][ T108] kthread+0x30b/0x410 [ 58.959830][ T108] ? kthread_park+0x1a0/0x1a0 [ 58.964487][ T108] ret_from_fork+0x24/0x30 [ 58.965031][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 58.976653][ T108] Kernel Offset: disabled [ 58.980965][ T108] Rebooting in 86400 seconds..