Warning: Permanently added '10.128.1.24' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.837003][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 29.076450][ T22] usb 1-1: Using ep0 maxpacket: 8 [ 29.196557][ T22] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=77.39 [ 29.205687][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.215004][ T22] usb 1-1: config 0 descriptor?? [ 29.258617][ T22] pvrusb2: Hardware description: Terratec Grabster AV400 [ 29.265781][ T22] pvrusb2: ********** [ 29.269866][ T22] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 29.280064][ T22] pvrusb2: Important functionality might not be entirely working. [ 29.287902][ T22] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 29.299189][ T22] pvrusb2: ********** executing program [ 29.466900][ T102] pvrusb2: Invalid write control endpoint [ 29.468108][ T22] usb 1-1: USB disconnect, device number 2 [ 29.484485][ T102] pvrusb2: Invalid write control endpoint [ 29.490368][ T102] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 29.499743][ T102] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 29.507321][ T102] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 29.517297][ T102] pvrusb2: Device being rendered inoperable [ 29.523506][ T102] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 29.530681][ T102] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 29.539571][ T102] pvrusb2: Attached sub-driver cx25840 [ 29.545081][ T102] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 29.555248][ T102] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 29.569993][ T102] ------------[ cut here ]------------ [ 29.575475][ T102] sysfs group 'power' not found for kobject 'i2c-0' [ 29.582161][ T102] WARNING: CPU: 1 PID: 102 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 [ 29.591338][ T102] Kernel panic - not syncing: panic_on_warn set ... [ 29.597917][ T102] CPU: 1 PID: 102 Comm: pvrusb2-context Not tainted 5.4.0-rc5+ #0 [ 29.605700][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.615728][ T102] Call Trace: [ 29.618999][ T102] dump_stack+0xca/0x13e [ 29.623218][ T102] ? sysfs_remove_group+0x70/0x1b0 [ 29.628305][ T102] panic+0x2aa/0x6e1 [ 29.632178][ T102] ? add_taint.cold+0x16/0x16 [ 29.636834][ T102] ? __probe_kernel_read+0x188/0x1d0 [ 29.642093][ T102] ? __warn.cold+0x14/0x33 [ 29.646488][ T102] ? __warn+0xd5/0x1d0 [ 29.650533][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 29.655709][ T102] __warn.cold+0x2f/0x33 [ 29.659936][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 29.665110][ T102] report_bug+0x27b/0x2f0 [ 29.669423][ T102] do_error_trap+0x12b/0x1e0 [ 29.673987][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 29.679171][ T102] do_invalid_op+0x32/0x40 [ 29.683561][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 29.688735][ T102] invalid_op+0x23/0x30 [ 29.692882][ T102] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 29.698660][ T102] 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 a0 d0 85 e8 b0 f1 89 ff <0f> 0b eb 95 e8 f2 9a db ff e9 d2 fe ff ff 48 89 df e8 e5 9a db ff [ 29.718241][ T102] RSP: 0018:ffff8881d4df7c40 EFLAGS: 00010282 [ 29.724380][ T102] RAX: 0000000000000000 RBX: ffffffff85f2c9a0 RCX: 0000000000000000 [ 29.732339][ T102] RDX: 0000000000000000 RSI: ffffffff8128c8ed RDI: ffffed103a9bef7a [ 29.740388][ T102] RBP: 0000000000000000 R08: ffff8881d736c800 R09: 0000000000000000 [ 29.748337][ T102] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d16e4338 [ 29.756296][ T102] R13: ffffffff85f2cf40 R14: ffff8881d16e4900 R15: ffff8881d736c800 [ 29.764252][ T102] ? vprintk_func+0x7d/0x113 [ 29.768822][ T102] dpm_sysfs_remove+0x97/0xb0 [ 29.773481][ T102] device_del+0x12a/0xb20 [ 29.777795][ T102] ? __pm_runtime_disable+0x148/0x3d0 [ 29.783147][ T102] ? __device_link_del+0x2f0/0x2f0 [ 29.788233][ T102] ? pm_runtime_barrier+0x260/0x260 [ 29.793406][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 29.798414][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 29.803411][ T102] device_unregister+0x11/0x30 [ 29.808160][ T102] i2c_del_adapter+0x42b/0x590 [ 29.812901][ T102] ? del_timer_sync+0x11a/0x140 [ 29.817725][ T102] pvr2_i2c_core_done+0x69/0xb6 [ 29.822556][ T102] pvr2_hdw_destroy+0x179/0x370 [ 29.827391][ T102] pvr2_context_destroy+0x84/0x230 [ 29.832495][ T102] pvr2_context_thread_func+0x657/0x860 [ 29.838018][ T102] ? lock_acquire+0x127/0x320 [ 29.842679][ T102] ? pvr2_context_destroy+0x230/0x230 [ 29.848026][ T102] ? finish_wait+0x260/0x260 [ 29.852590][ T102] ? lockdep_hardirqs_on+0x382/0x580 [ 29.857847][ T102] ? __kthread_parkme+0x10a/0x1c0 [ 29.862846][ T102] ? pvr2_context_destroy+0x230/0x230 [ 29.868191][ T102] kthread+0x318/0x420 [ 29.872233][ T102] ? kthread_create_on_node+0xf0/0xf0 [ 29.877587][ T102] ret_from_fork+0x24/0x30 [ 29.882712][ T102] Kernel Offset: disabled [ 29.887060][ T102] Rebooting in 86400 seconds..