Warning: Permanently added '10.128.0.199' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 43.766199][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 44.006192][ T83] usb 1-1: Using ep0 maxpacket: 8 [ 44.126291][ T83] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=77.39 [ 44.135410][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.144777][ T83] usb 1-1: config 0 descriptor?? [ 44.198539][ T83] pvrusb2: Hardware description: Terratec Grabster AV400 [ 44.205656][ T83] pvrusb2: ********** [ 44.209701][ T83] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 44.219785][ T83] pvrusb2: Important functionality might not be entirely working. [ 44.227639][ T83] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 44.238951][ T83] pvrusb2: ********** executing program [ 44.406694][ T103] pvrusb2: Invalid write control endpoint [ 44.416542][ T83] usb 1-1: USB disconnect, device number 2 [ 44.426546][ T103] pvrusb2: Invalid write control endpoint [ 44.432379][ T103] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 44.441994][ T103] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 44.449697][ T103] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 44.459706][ T103] pvrusb2: Device being rendered inoperable [ 44.466382][ T103] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 44.473518][ T103] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 44.482291][ T103] pvrusb2: Attached sub-driver cx25840 [ 44.487845][ T103] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 44.497958][ T103] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 44.856127][ T83] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 45.096143][ T83] usb 1-1: Using ep0 maxpacket: 8 [ 45.216250][ T83] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=77.39 [ 45.225392][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.234317][ T83] usb 1-1: config 0 descriptor?? [ 45.277930][ T83] pvrusb2: Hardware description: Terratec Grabster AV400 [ 45.284981][ T83] pvrusb2: ********** [ 45.289008][ T83] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 45.299128][ T83] pvrusb2: Important functionality might not be entirely working. [ 45.307829][ T83] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 45.319120][ T83] pvrusb2: ********** executing program [ 45.486946][ T103] pvrusb2: Invalid write control endpoint [ 45.487490][ T83] usb 1-1: USB disconnect, device number 3 [ 45.503201][ T103] pvrusb2: Invalid write control endpoint [ 45.509020][ T103] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 45.518498][ T103] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 45.526127][ T103] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 45.536396][ T103] pvrusb2: Device being rendered inoperable [ 45.542372][ T103] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 45.549469][ T103] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 45.557862][ T103] pvrusb2: Attached sub-driver cx25840 [ 45.563878][ T103] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 45.574000][ T103] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 45.585568][ T103] ------------[ cut here ]------------ [ 45.591106][ T103] sysfs group 'power' not found for kobject 'i2c-0' [ 45.597801][ T103] WARNING: CPU: 1 PID: 103 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 [ 45.607163][ T103] Kernel panic - not syncing: panic_on_warn set ... [ 45.613731][ T103] CPU: 1 PID: 103 Comm: pvrusb2-context Not tainted 5.4.0-rc3+ #0 [ 45.621507][ T103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.631542][ T103] Call Trace: [ 45.634836][ T103] dump_stack+0xca/0x13e [ 45.639058][ T103] ? sysfs_remove_group+0x120/0x1b0 [ 45.644241][ T103] panic+0x2aa/0x6e1 [ 45.648115][ T103] ? add_taint.cold+0x16/0x16 [ 45.652942][ T103] ? __probe_kernel_read+0x188/0x1d0 [ 45.658202][ T103] ? __warn.cold+0x14/0x33 [ 45.662606][ T103] ? __warn+0xd5/0x1d0 [ 45.666658][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 45.672177][ T103] __warn.cold+0x2f/0x33 [ 45.676400][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 45.681573][ T103] report_bug+0x27b/0x2f0 [ 45.685877][ T103] do_error_trap+0x12b/0x1e0 [ 45.690446][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 45.695620][ T103] do_invalid_op+0x32/0x40 [ 45.700024][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 45.705215][ T103] invalid_op+0x23/0x30 [ 45.709356][ T103] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 45.715137][ T103] 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 9d d0 85 e8 60 06 8a ff <0f> 0b eb 95 e8 92 9f db ff e9 d2 fe ff ff 48 89 df e8 85 9f db ff [ 45.734720][ T103] RSP: 0018:ffff8881d4e07c40 EFLAGS: 00010282 [ 45.740781][ T103] RAX: 0000000000000000 RBX: ffffffff85f2c9c0 RCX: 0000000000000000 [ 45.748753][ T103] RDX: 0000000000000000 RSI: ffffffff8128bcbd RDI: ffffed103a9c0f7a [ 45.756720][ T103] RBP: 0000000000000000 R08: ffff8881d7986000 R09: ffffed103b665d58 [ 45.764692][ T103] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: ffff8881cfd9c338 [ 45.772654][ T103] R13: ffffffff85f2cf60 R14: ffff8881cfd9c900 R15: ffff8881d7986000 [ 45.780618][ T103] ? vprintk_func+0x7d/0x113 [ 45.785193][ T103] dpm_sysfs_remove+0x97/0xb0 [ 45.789851][ T103] device_del+0x12a/0xb20 [ 45.794183][ T103] ? __pm_runtime_disable+0x148/0x3d0 [ 45.799551][ T103] ? __device_link_del+0x2f0/0x2f0 [ 45.805064][ T103] ? pm_runtime_barrier+0x260/0x260 [ 45.810267][ T103] ? lockdep_init_map+0x1b0/0x5e0 [ 45.815294][ T103] ? lockdep_init_map+0x1b0/0x5e0 [ 45.820319][ T103] device_unregister+0x11/0x30 [ 45.825075][ T103] i2c_del_adapter+0x42b/0x590 [ 45.829821][ T103] ? del_timer_sync+0x11a/0x140 [ 45.834660][ T103] pvr2_i2c_core_done+0x69/0xb6 [ 45.839499][ T103] pvr2_hdw_destroy+0x179/0x370 [ 45.844343][ T103] pvr2_context_destroy+0x84/0x230 [ 45.849431][ T103] pvr2_context_thread_func+0x657/0x860 [ 45.854954][ T103] ? lock_acquire+0x127/0x320 [ 45.859608][ T103] ? pvr2_context_destroy+0x230/0x230 [ 45.864956][ T103] ? finish_wait+0x260/0x260 [ 45.869557][ T103] ? lockdep_hardirqs_on+0x382/0x580 [ 45.874830][ T103] ? __kthread_parkme+0x10a/0x1c0 [ 45.879833][ T103] ? pvr2_context_destroy+0x230/0x230 [ 45.885189][ T103] kthread+0x318/0x420 [ 45.889237][ T103] ? kthread_create_on_node+0xf0/0xf0 [ 45.894594][ T103] ret_from_fork+0x24/0x30 [ 45.899567][ T103] Kernel Offset: disabled [ 45.904049][ T103] Rebooting in 86400 seconds..