Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. syzkaller login: [ 45.710885][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 45.950859][ T22] usb 1-1: Using ep0 maxpacket: 8 [ 46.070886][ T22] usb 1-1: config 0 has an invalid interface number: 130 but max is 0 [ 46.079129][ T22] usb 1-1: config 0 has no interface number 0 [ 46.085276][ T22] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=4c.03 [ 46.094338][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 46.103586][ T22] usb 1-1: config 0 descriptor?? [ 46.153093][ T22] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 46.351489][ T109] pvrusb2: Invalid write control endpoint [ 46.357958][ T22] usb 1-1: USB disconnect, device number 2 [ 46.369946][ T109] pvrusb2: Invalid write control endpoint [ 46.376046][ T109] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 46.385115][ T109] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 46.392248][ T109] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 46.401895][ T109] pvrusb2: Device being rendered inoperable [ 46.408287][ T109] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 46.415456][ T109] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 46.424138][ T109] pvrusb2: Attached sub-driver cx25840 [ 46.433570][ T109] pvrusb2: Attempted to execute control transfer when device not ok [ 46.442058][ T109] pvrusb2: Attempted to execute control transfer when device not ok [ 46.450033][ T109] pvrusb2: Attempted to execute control transfer when device not ok [ 46.458040][ T109] pvrusb2: Attempted to execute control transfer when device not ok [ 46.466043][ T109] 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. [ 46.486819][ T109] pvrusb2: Attempted to execute control transfer when device not ok [ 46.495066][ T109] tda9887 0-0043: creating new instance [ 46.500859][ T109] tda9887 0-0043: tda988[5/6/7] found [ 46.506242][ T109] pvrusb2: Attempted to execute control transfer when device not ok [ 46.514611][ T109] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 46.521635][ T109] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 46.528631][ T109] pvrusb2: Attached sub-driver tuner [ 46.534016][ T109] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 46.546902][ T109] 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. [ 46.569561][ T109] ------------[ cut here ]------------ [ 46.575305][ T109] sysfs group 'power' not found for kobject '0-0043' [ 46.582153][ T109] WARNING: CPU: 1 PID: 109 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 46.591330][ T109] Kernel panic - not syncing: panic_on_warn set ... [ 46.597901][ T109] CPU: 1 PID: 109 Comm: pvrusb2-context Not tainted 5.2.0-rc1+ #10 [ 46.605771][ T109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.615814][ T109] Call Trace: [ 46.619094][ T109] dump_stack+0xca/0x13e [ 46.623323][ T109] ? sysfs_remove_group+0x60/0x1b0 [ 46.628420][ T109] panic+0x292/0x6c9 [ 46.632304][ T109] ? __warn_printk+0xf3/0xf3 [ 46.636881][ T109] ? sysfs_remove_group+0x155/0x1b0 [ 46.642067][ T109] ? __probe_kernel_read+0x16c/0x1b0 [ 46.647335][ T109] ? __warn.cold+0x5/0x4b [ 46.651699][ T109] ? __warn+0xe4/0x1c0 [ 46.655761][ T109] ? sysfs_remove_group+0x155/0x1b0 [ 46.660964][ T109] __warn.cold+0x20/0x4b [ 46.665193][ T109] ? __irq_work_queue_local+0xa3/0xe0 [ 46.670569][ T109] ? sysfs_remove_group+0x155/0x1b0 [ 46.675802][ T109] report_bug+0x262/0x2a0 [ 46.680172][ T109] do_error_trap+0x12b/0x1e0 [ 46.684748][ T109] ? sysfs_remove_group+0x155/0x1b0 [ 46.689933][ T109] do_invalid_op+0x32/0x40 [ 46.694342][ T109] ? sysfs_remove_group+0x155/0x1b0 [ 46.699527][ T109] invalid_op+0x14/0x20 [ 46.703670][ T109] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 46.709463][ T109] 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 20 49 d0 85 e8 66 3e 8c ff <0f> 0b eb 95 e8 42 4e dc ff e9 d2 fe ff ff 48 89 df e8 35 4e dc ff [ 46.729119][ T109] RSP: 0018:ffff8881d43c7b68 EFLAGS: 00010286 [ 46.735184][ T109] RAX: 0000000000000000 RBX: ffffffff85f23a20 RCX: 0000000000000000 [ 46.743142][ T109] RDX: 0000000000000000 RSI: ffffffff8127e98d RDI: ffffed103a878f5f [ 46.751102][ T109] RBP: 0000000000000000 R08: ffff8881d43b8000 R09: ffffed103b665d30 [ 46.759060][ T109] R10: ffffed103b665d2f R11: ffff8881db32e97f R12: ffff8881cfb62220 [ 46.767069][ T109] R13: ffffffff85f23fc0 R14: 1ffff1103a878f98 R15: ffff8881cfb62268 [ 46.775039][ T109] ? vprintk_func+0x7d/0x113 [ 46.779713][ T109] ? sysfs_remove_group+0x155/0x1b0 [ 46.784901][ T109] dpm_sysfs_remove+0x97/0xb0 [ 46.789731][ T109] device_del+0x172/0xb80 [ 46.794050][ T109] ? __kasan_slab_free+0x145/0x180 [ 46.799147][ T109] ? kfree_const+0x51/0x60 [ 46.803558][ T109] ? __device_links_no_driver+0x240/0x240 [ 46.809355][ T109] ? kfree_const+0x51/0x60 [ 46.813755][ T109] ? kobject_put+0x18c/0x280 [ 46.818333][ T109] device_unregister+0x11/0x30 [ 46.823084][ T109] i2c_unregister_device+0x13f/0x180 [ 46.828362][ T109] ? i2c_check_mux_children+0xa0/0xa0 [ 46.833728][ T109] __unregister_client+0x78/0x90 [ 46.838650][ T109] device_for_each_child+0xf9/0x170 [ 46.843836][ T109] ? device_remove_class_symlinks+0x210/0x210 [ 46.849890][ T109] ? __radix_tree_lookup+0x1ed/0x260 [ 46.855160][ T109] i2c_del_adapter+0x2b2/0x550 [ 46.859921][ T109] ? del_timer_sync+0x121/0x130 [ 46.864775][ T109] pvr2_i2c_core_done+0x69/0xb6 [ 46.869741][ T109] pvr2_hdw_destroy+0x179/0x370 [ 46.874726][ T109] pvr2_context_destroy+0x84/0x230 [ 46.879835][ T109] pvr2_context_thread_func+0x657/0x860 [ 46.885367][ T109] ? lock_acquire+0x100/0x2b0 [ 46.890032][ T109] ? pvr2_context_destroy+0x230/0x230 [ 46.895395][ T109] ? finish_wait+0x260/0x260 [ 46.899971][ T109] ? lockdep_hardirqs_on+0x379/0x580 [ 46.905249][ T109] ? __kthread_parkme+0xfd/0x1b0 [ 46.910222][ T109] ? pvr2_context_destroy+0x230/0x230 [ 46.915577][ T109] kthread+0x30b/0x410 [ 46.919632][ T109] ? kthread_park+0x1a0/0x1a0 [ 46.924299][ T109] ret_from_fork+0x24/0x30 [ 46.929294][ T109] Kernel Offset: disabled [ 46.933661][ T109] Rebooting in 86400 seconds..