[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [ 14.710424][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.89' (ECDSA) to the list of known hosts. syzkaller login: [ 29.333799][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 29.573784][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 29.693875][ T12] usb 1-1: config 0 has an invalid interface number: 108 but max is 0 [ 29.702364][ T12] usb 1-1: config 0 has no interface number 0 [ 29.708848][ T12] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=85.c7 [ 29.718002][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.735971][ T12] usb 1-1: config 0 descriptor?? [ 29.776115][ T12] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 29.984409][ T108] pvrusb2: Invalid write control endpoint [ 29.990712][ T12] usb 1-1: USB disconnect, device number 2 [ 30.000606][ T108] pvrusb2: Invalid write control endpoint [ 30.006495][ T108] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 30.015689][ T108] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 30.022964][ T108] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 30.032622][ T108] pvrusb2: Device being rendered inoperable [ 30.039002][ T108] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 30.046175][ T108] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 30.054990][ T108] pvrusb2: Attached sub-driver cx25840 [ 30.064587][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 30.072689][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 30.081012][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 30.089167][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 30.097194][ 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. [ 30.118204][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 30.126471][ T108] tda9887 0-0043: creating new instance [ 30.132262][ T108] tda9887 0-0043: tda988[5/6/7] found [ 30.138265][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 30.146382][ T108] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 30.153598][ T108] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 30.161159][ T108] pvrusb2: Attached sub-driver tuner [ 30.166848][ T108] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 30.179690][ 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. [ 30.200739][ T108] ------------[ cut here ]------------ [ 30.206511][ T108] sysfs group 'power' not found for kobject '0-0043' [ 30.213489][ T108] WARNING: CPU: 1 PID: 108 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 30.222971][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 30.229662][ T108] CPU: 1 PID: 108 Comm: pvrusb2-context Not tainted 5.2.0-rc6+ #13 [ 30.237905][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.248199][ T108] Call Trace: [ 30.251480][ T108] dump_stack+0xca/0x13e [ 30.255756][ T108] ? sysfs_remove_group+0x110/0x1b0 [ 30.260947][ T108] panic+0x292/0x6c9 [ 30.264829][ T108] ? __warn_printk+0xf3/0xf3 [ 30.269420][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 30.277705][ T108] ? __probe_kernel_read+0x16c/0x1b0 [ 30.283340][ T108] ? __warn.cold+0x5/0x4b [ 30.287728][ T108] ? __warn+0xe4/0x1c0 [ 30.291916][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 30.297818][ T108] __warn.cold+0x20/0x4b [ 30.302224][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 30.307535][ T108] report_bug+0x262/0x2a0 [ 30.311860][ T108] do_error_trap+0x12b/0x1e0 [ 30.316908][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 30.322097][ T108] do_invalid_op+0x32/0x40 [ 30.326640][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 30.331997][ T108] invalid_op+0x14/0x20 [ 30.336586][ T108] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 30.342584][ 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 [ 30.362566][ T108] RSP: 0018:ffff8881d43dfb68 EFLAGS: 00010286 [ 30.369253][ T108] RAX: 0000000000000000 RBX: ffffffff85f24140 RCX: 0000000000000000 [ 30.377484][ T108] RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103a87bf5f [ 30.385456][ T108] RBP: 0000000000000000 R08: ffff8881d4191800 R09: ffffed103b663ed7 [ 30.393514][ T108] R10: ffffed103b663ed6 R11: ffff8881db31f6b7 R12: ffff8881d0ad4420 [ 30.401656][ T108] R13: ffffffff85f246e0 R14: 1ffff1103a87bf98 R15: ffff8881d0ad4468 [ 30.409977][ T108] ? vprintk_func+0x7d/0x113 [ 30.414701][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 30.419897][ T108] dpm_sysfs_remove+0x97/0xb0 [ 30.424882][ T108] device_del+0x172/0xb80 [ 30.429981][ T108] ? __kasan_slab_free+0x145/0x180 [ 30.435179][ T108] ? kfree_const+0x51/0x60 [ 30.439718][ T108] ? __device_links_no_driver+0x240/0x240 [ 30.445702][ T108] ? kfree_const+0x51/0x60 [ 30.450167][ T108] ? kobject_put+0x18c/0x280 [ 30.455266][ T108] device_unregister+0x11/0x30 [ 30.460100][ T108] i2c_unregister_device+0x13f/0x180 [ 30.465495][ T108] ? i2c_check_mux_children+0xa0/0xa0 [ 30.471540][ T108] __unregister_client+0x78/0x90 [ 30.476747][ T108] device_for_each_child+0xf9/0x170 [ 30.481944][ T108] ? device_remove_class_symlinks+0x210/0x210 [ 30.488091][ T108] ? __radix_tree_lookup+0x1ed/0x260 [ 30.493372][ T108] i2c_del_adapter+0x2b2/0x550 [ 30.498138][ T108] ? del_timer_sync+0x121/0x130 [ 30.502986][ T108] pvr2_i2c_core_done+0x69/0xb6 [ 30.507840][ T108] pvr2_hdw_destroy+0x179/0x370 [ 30.512689][ T108] pvr2_context_destroy+0x84/0x230 [ 30.517797][ T108] pvr2_context_thread_func+0x657/0x860 [ 30.523334][ T108] ? lock_acquire+0x100/0x2b0 [ 30.528094][ T108] ? pvr2_context_destroy+0x230/0x230 [ 30.533491][ T108] ? finish_wait+0x260/0x260 [ 30.538073][ T108] ? lockdep_hardirqs_on+0x379/0x580 [ 30.543461][ T108] ? __kthread_parkme+0xfd/0x1b0 [ 30.548653][ T108] ? pvr2_context_destroy+0x230/0x230 [ 30.554009][ T108] kthread+0x30b/0x410 [ 30.558502][ T108] ? kthread_park+0x1a0/0x1a0 [ 30.563721][ T108] ret_from_fork+0x24/0x30 [ 30.569116][ T108] Kernel Offset: disabled [ 30.573634][ T108] Rebooting in 86400 seconds..