Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts. syzkaller login: [ 50.888517][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 51.128447][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 51.248579][ T12] usb 1-1: config index 0 descriptor too short (expected 806, got 349) [ 51.256892][ T12] usb 1-1: config 0 has an invalid interface number: 188 but max is 0 [ 51.265116][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 51.275237][ T12] usb 1-1: config 0 has no interface number 0 [ 51.281371][ T12] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=39.67 [ 51.290444][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 51.299646][ T12] usb 1-1: config 0 descriptor?? [ 51.340069][ T12] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 51.569102][ T108] pvrusb2: Invalid write control endpoint [ 51.575204][ T12] usb 1-1: USB disconnect, device number 2 [ 51.581201][ T108] pvrusb2: Invalid write control endpoint [ 51.581212][ T108] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 51.581227][ T108] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 51.603085][ T108] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 51.612771][ T108] pvrusb2: Device being rendered inoperable [ 51.619085][ T108] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 51.626369][ T108] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 51.635482][ T108] pvrusb2: Attached sub-driver cx25840 [ 51.644890][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 51.653338][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 51.661361][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 51.669455][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 51.677426][ 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. [ 51.698358][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 51.706771][ T108] tda9887 0-0043: creating new instance [ 51.712470][ T108] tda9887 0-0043: tda988[5/6/7] found [ 51.717882][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 51.725972][ T108] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 51.733019][ T108] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 51.740195][ T108] pvrusb2: Attached sub-driver tuner [ 51.745474][ T108] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 51.758372][ 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. [ 51.779389][ T108] tda9887 0-0043: destroying instance [ 51.785143][ T108] ------------[ cut here ]------------ [ 51.790788][ T108] sysfs group 'power' not found for kobject 'i2c-0' [ 51.797457][ T108] WARNING: CPU: 1 PID: 108 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 51.806658][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 51.813280][ T108] CPU: 1 PID: 108 Comm: pvrusb2-context Not tainted 5.2.0-rc6+ #14 [ 51.821156][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.834241][ T108] Call Trace: [ 51.838410][ T108] dump_stack+0xca/0x13e [ 51.842643][ T108] ? sysfs_remove_group+0x110/0x1b0 [ 51.847913][ T108] panic+0x292/0x6c9 [ 51.851862][ T108] ? __warn_printk+0xf3/0xf3 [ 51.856478][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 51.861714][ T108] ? __probe_kernel_read+0x16c/0x1b0 [ 51.866992][ T108] ? __warn.cold+0x5/0x4b [ 51.871313][ T108] ? __warn+0xe4/0x1c0 [ 51.875369][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 51.880560][ T108] __warn.cold+0x20/0x4b [ 51.884980][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 51.890174][ T108] report_bug+0x262/0x2a0 [ 51.894503][ T108] do_error_trap+0x12b/0x1e0 [ 51.899086][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 51.904386][ T108] do_invalid_op+0x32/0x40 [ 51.908790][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 51.914184][ T108] invalid_op+0x14/0x20 [ 51.918348][ T108] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 51.924186][ 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 [ 51.943863][ T108] RSP: 0018:ffff8881d43efc40 EFLAGS: 00010282 [ 51.949971][ T108] RAX: 0000000000000000 RBX: ffffffff85f24140 RCX: 0000000000000000 [ 51.958054][ T108] RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103a87df7a [ 51.966363][ T108] RBP: 0000000000000000 R08: ffff8881d7afb000 R09: ffffed103b663ed7 [ 51.974348][ T108] R10: ffffed103b663ed6 R11: ffff8881db31f6b7 R12: ffff8881d561c338 [ 51.982944][ T108] R13: ffffffff85f246e0 R14: ffff8881d561c878 R15: ffff8881d561c380 [ 51.990980][ T108] ? vprintk_func+0x7d/0x113 [ 51.995628][ T108] dpm_sysfs_remove+0x97/0xb0 [ 52.000309][ T108] device_del+0x172/0xb80 [ 52.004629][ T108] ? __pm_runtime_disable+0x148/0x3d0 [ 52.010092][ T108] ? __device_links_no_driver+0x240/0x240 [ 52.015859][ T108] ? pm_runtime_barrier+0x260/0x260 [ 52.021066][ T108] ? lockdep_init_map+0x1b0/0x5e0 [ 52.026096][ T108] ? lockdep_init_map+0x1b0/0x5e0 [ 52.031122][ T108] device_unregister+0x11/0x30 [ 52.035897][ T108] i2c_del_adapter+0x3f2/0x550 [ 52.040665][ T108] ? del_timer_sync+0x121/0x130 [ 52.045524][ T108] pvr2_i2c_core_done+0x69/0xb6 [ 52.050370][ T108] pvr2_hdw_destroy+0x179/0x370 [ 52.055207][ T108] pvr2_context_destroy+0x84/0x230 [ 52.060303][ T108] pvr2_context_thread_func+0x657/0x860 [ 52.065965][ T108] ? lock_acquire+0x100/0x2b0 [ 52.070641][ T108] ? pvr2_context_destroy+0x230/0x230 [ 52.076017][ T108] ? finish_wait+0x260/0x260 [ 52.080602][ T108] ? lockdep_hardirqs_on+0x379/0x580 [ 52.085877][ T108] ? __kthread_parkme+0xfd/0x1b0 [ 52.090803][ T108] ? pvr2_context_destroy+0x230/0x230 [ 52.096347][ T108] kthread+0x30b/0x410 [ 52.100412][ T108] ? kthread_park+0x1a0/0x1a0 [ 52.105070][ T108] ret_from_fork+0x24/0x30 [ 52.109829][ T108] Kernel Offset: disabled [ 52.114196][ T108] Rebooting in 86400 seconds..