Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. syzkaller login: [ 58.191806][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 58.551860][ T12] usb 1-1: config 0 has an invalid interface number: 159 but max is 0 [ 58.560276][ T12] usb 1-1: config 0 has no interface number 0 [ 58.566606][ T12] usb 1-1: New USB device found, idVendor=1164, idProduct=0602, bcdDevice=5e.49 [ 58.576556][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.585740][ T12] usb 1-1: config 0 descriptor?? [ 58.623666][ T12] pvrusb2: Hardware description: Gotview USB 2.0 DVD Deluxe [ 58.832610][ T108] pvrusb2: Invalid write control endpoint [ 58.839439][ T12] usb 1-1: USB disconnect, device number 2 [ 58.848940][ T108] pvrusb2: Invalid write control endpoint [ 58.855001][ T108] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 58.864286][ T108] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 58.872391][ T108] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 58.882495][ T108] pvrusb2: Device being rendered inoperable [ 58.888910][ T108] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 58.896220][ T108] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 58.905382][ T108] pvrusb2: Attached sub-driver cx25840 [ 58.914936][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.923087][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.931269][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.939750][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.947919][ 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. [ 58.970239][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.978563][ T108] tda9887 0-0043: creating new instance [ 58.984343][ T108] tda9887 0-0043: tda988[5/6/7] found [ 58.989720][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 58.997918][ T108] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 59.005545][ T108] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 59.023773][ T108] pvrusb2: Attached sub-driver tuner [ 59.031373][ T108] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 59.045433][ 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. [ 59.067567][ T108] ------------[ cut here ]------------ [ 59.073118][ T108] sysfs group 'power' not found for kobject '0-0043' [ 59.080546][ T108] WARNING: CPU: 0 PID: 108 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 59.090337][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 59.097060][ T108] CPU: 0 PID: 108 Comm: pvrusb2-context Not tainted 5.2.0-rc1+ #10 [ 59.105036][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.115329][ T108] Call Trace: [ 59.118969][ T108] dump_stack+0xca/0x13e [ 59.123478][ T108] ? sysfs_remove_group+0x60/0x1b0 [ 59.128791][ T108] panic+0x292/0x6c9 [ 59.132964][ T108] ? __warn_printk+0xf3/0xf3 [ 59.137758][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 59.143076][ T108] ? __probe_kernel_read+0x16c/0x1b0 [ 59.148591][ T108] ? __warn.cold+0x5/0x4b [ 59.153209][ T108] ? __warn+0xe4/0x1c0 [ 59.157640][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 59.162934][ T108] __warn.cold+0x20/0x4b [ 59.167394][ T108] ? __irq_work_queue_local+0xa3/0xe0 [ 59.172902][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 59.178425][ T108] report_bug+0x262/0x2a0 [ 59.182847][ T108] do_error_trap+0x12b/0x1e0 [ 59.187556][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 59.192757][ T108] do_invalid_op+0x32/0x40 [ 59.197271][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 59.202681][ T108] invalid_op+0x14/0x20 [ 59.206900][ T108] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 59.212805][ 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 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 [ 59.232836][ T108] RSP: 0018:ffff8881d43d7b68 EFLAGS: 00010286 [ 59.239376][ T108] RAX: 0000000000000000 RBX: ffffffff85f23a20 RCX: 0000000000000000 [ 59.247674][ T108] RDX: 0000000000000000 RSI: ffffffff8127e98d RDI: ffffed103a87af5f [ 59.255752][ T108] RBP: 0000000000000000 R08: ffff8881d45f4800 R09: ffffed103b645d30 [ 59.264199][ T108] R10: ffffed103b645d2f R11: ffff8881db22e97f R12: ffff8881cfed9120 [ 59.272424][ T108] R13: ffffffff85f23fc0 R14: 1ffff1103a87af98 R15: ffff8881cfed9168 [ 59.280623][ T108] ? vprintk_func+0x7d/0x113 [ 59.285272][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 59.290662][ T108] dpm_sysfs_remove+0x97/0xb0 [ 59.295344][ T108] device_del+0x172/0xb80 [ 59.299658][ T108] ? __kasan_slab_free+0x145/0x180 [ 59.304761][ T108] ? kfree_const+0x51/0x60 [ 59.309304][ T108] ? __device_links_no_driver+0x240/0x240 [ 59.315010][ T108] ? kfree_const+0x51/0x60 [ 59.319534][ T108] ? kobject_put+0x18c/0x280 [ 59.324110][ T108] device_unregister+0x11/0x30 [ 59.328869][ T108] i2c_unregister_device+0x13f/0x180 [ 59.334277][ T108] ? i2c_check_mux_children+0xa0/0xa0 [ 59.339656][ T108] __unregister_client+0x78/0x90 [ 59.344594][ T108] device_for_each_child+0xf9/0x170 [ 59.350154][ T108] ? device_remove_class_symlinks+0x210/0x210 [ 59.356225][ T108] ? __radix_tree_lookup+0x1ed/0x260 [ 59.361636][ T108] i2c_del_adapter+0x2b2/0x550 [ 59.366513][ T108] ? del_timer_sync+0x121/0x130 [ 59.371346][ T108] pvr2_i2c_core_done+0x69/0xb6 [ 59.376189][ T108] pvr2_hdw_destroy+0x179/0x370 [ 59.381035][ T108] pvr2_context_destroy+0x84/0x230 [ 59.386253][ T108] pvr2_context_thread_func+0x657/0x860 [ 59.391996][ T108] ? lock_acquire+0x100/0x2b0 [ 59.396674][ T108] ? pvr2_context_destroy+0x230/0x230 [ 59.402044][ T108] ? finish_wait+0x260/0x260 [ 59.406835][ T108] ? lockdep_hardirqs_on+0x379/0x580 [ 59.412120][ T108] ? __kthread_parkme+0xfd/0x1b0 [ 59.417185][ T108] ? pvr2_context_destroy+0x230/0x230 [ 59.422544][ T108] kthread+0x30b/0x410 [ 59.426708][ T108] ? kthread_park+0x1a0/0x1a0 [ 59.431375][ T108] ret_from_fork+0x24/0x30 [ 59.437033][ T108] Kernel Offset: disabled [ 59.441407][ T108] Rebooting in 86400 seconds..