Warning: Permanently added '10.128.0.193' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.837972][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 42.077938][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 42.198018][ T12] usb 1-1: config 1 has an invalid interface number: 158 but max is 0 [ 42.206313][ T12] usb 1-1: config 1 has no interface number 0 [ 42.212564][ T12] usb 1-1: config 1 interface 158 altsetting 0 endpoint 0xB has wMaxPacketSize 0, skipping [ 42.222577][ T12] usb 1-1: config 1 interface 158 altsetting 0 endpoint 0x8A has wMaxPacketSize 0, skipping [ 42.232725][ T12] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=22.bc [ 42.241785][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.290489][ T12] pvrusb2: Hardware description: Terratec Grabster AV400 [ 42.297616][ T12] pvrusb2: ********** [ 42.301661][ T12] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 42.311746][ T12] pvrusb2: Important functionality might not be entirely working. [ 42.319603][ T12] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 42.330988][ T12] pvrusb2: ********** executing program [ 42.508342][ T102] pvrusb2: Invalid write control endpoint [ 42.510136][ T12] usb 1-1: USB disconnect, device number 2 [ 42.522940][ T102] pvrusb2: Invalid write control endpoint [ 42.529004][ T102] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 42.538688][ T102] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 42.546238][ T102] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 42.556243][ T102] pvrusb2: Device being rendered inoperable [ 42.562634][ T102] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 42.569940][ T102] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 42.578941][ T102] pvrusb2: Attached sub-driver cx25840 [ 42.584474][ T102] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 42.594656][ T102] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 42.609112][ T102] ------------[ cut here ]------------ [ 42.614653][ T102] sysfs group 'power' not found for kobject 'i2c-0' [ 42.621383][ T102] WARNING: CPU: 0 PID: 102 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 [ 42.630582][ T102] Kernel panic - not syncing: panic_on_warn set ... [ 42.637362][ T102] CPU: 0 PID: 102 Comm: pvrusb2-context Not tainted 5.5.0-rc2-syzkaller #0 [ 42.645931][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.656015][ T102] Call Trace: [ 42.659310][ T102] dump_stack+0xef/0x16e [ 42.663539][ T102] ? sysfs_remove_group+0x150/0x1b0 [ 42.668725][ T102] panic+0x2aa/0x6e1 [ 42.672724][ T102] ? add_taint.cold+0x16/0x16 [ 42.677389][ T102] ? __probe_kernel_read+0x188/0x1d0 [ 42.683839][ T102] ? __warn.cold+0x14/0x30 [ 42.688365][ T102] ? __warn+0xd5/0x1c8 [ 42.692447][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 42.697624][ T102] __warn.cold+0x2f/0x30 [ 42.701901][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 42.707121][ T102] report_bug+0x27b/0x2f0 [ 42.711450][ T102] do_error_trap+0x12b/0x1e0 [ 42.716022][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 42.721223][ T102] do_invalid_op+0x32/0x40 [ 42.725622][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 42.730820][ T102] invalid_op+0x23/0x30 [ 42.735061][ T102] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 42.740881][ 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 a0 ba d0 85 e8 63 1b 86 ff <0f> 0b eb 95 e8 42 85 d9 ff e9 d2 fe ff ff 48 89 df e8 35 85 d9 ff [ 42.760470][ T102] RSP: 0018:ffff8881d4f1fc40 EFLAGS: 00010282 [ 42.766518][ T102] RAX: 0000000000000000 RBX: ffffffff85f379e0 RCX: 0000000000000000 [ 42.774576][ T102] RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103a9e3f7a [ 42.782547][ T102] RBP: 0000000000000000 R08: ffff8881d56b4980 R09: 0000000000000000 [ 42.790509][ T102] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881cfb3c338 [ 42.798485][ T102] R13: ffffffff85f37f80 R14: ffff8881cfb3c920 R15: ffff8881d56b4980 [ 42.806449][ T102] ? vprintk_func+0x7d/0x113 [ 42.811026][ T102] dpm_sysfs_remove+0x97/0xb0 [ 42.815685][ T102] device_del+0x18b/0xd30 [ 42.821153][ T102] ? __pm_runtime_disable+0x148/0x3d0 [ 42.826517][ T102] ? device_create_with_groups+0x120/0x120 [ 42.832318][ T102] ? pm_runtime_barrier+0x260/0x260 [ 42.837496][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 42.842561][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 42.847580][ T102] device_unregister+0x11/0x30 [ 42.852352][ T102] i2c_del_adapter+0x42b/0x590 [ 42.857105][ T102] ? del_timer_sync+0x115/0x130 [ 42.862037][ T102] pvr2_i2c_core_done+0x69/0xb6 [ 42.866874][ T102] pvr2_hdw_destroy+0x179/0x370 [ 42.871708][ T102] pvr2_context_destroy+0x84/0x230 [ 42.876810][ T102] pvr2_context_thread_func+0x657/0x860 [ 42.882354][ T102] ? lock_acquire+0x127/0x320 [ 42.887022][ T102] ? pvr2_context_destroy+0x230/0x230 [ 42.892373][ T102] ? finish_wait+0x260/0x260 [ 42.896957][ T102] ? lockdep_hardirqs_on+0x382/0x580 [ 42.902232][ T102] ? __kthread_parkme+0x10a/0x1c0 [ 42.907240][ T102] ? pvr2_context_destroy+0x230/0x230 [ 42.912605][ T102] kthread+0x318/0x420 [ 42.916664][ T102] ? kthread_create_on_node+0xf0/0xf0 [ 42.922018][ T102] ret_from_fork+0x24/0x30 [ 42.927004][ T102] Kernel Offset: disabled [ 42.931354][ T102] Rebooting in 86400 seconds..