INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.588884][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 56.948791][ T21] usb 1-1: config index 0 descriptor too short (expected 65270, got 58) [ 56.958407][ T21] usb 1-1: config 0 has an invalid interface number: 111 but max is 0 [ 56.966774][ T21] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 56.977082][ T21] usb 1-1: config 0 has no interface number 0 [ 56.983461][ T21] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=dc.0e [ 56.992556][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 57.002281][ T21] usb 1-1: config 0 descriptor?? executing program [ 57.258933][ T21] usb 1-1: string descriptor 0 read error: -71 [ 57.267676][ T21] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 57.289317][ T108] pvrusb2: Invalid write control endpoint [ 57.296637][ T21] usb 1-1: USB disconnect, device number 2 [ 57.310135][ T108] pvrusb2: Invalid write control endpoint [ 57.316221][ T108] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 57.325798][ T108] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 57.333048][ T108] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 57.342656][ T108] pvrusb2: Device being rendered inoperable [ 57.349170][ T108] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 57.356315][ T108] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 57.366161][ T108] pvrusb2: Attached sub-driver cx25840 [ 57.376432][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 57.384674][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 57.393374][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 57.401474][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 57.409534][ 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. [ 57.431926][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 57.440423][ T108] tda9887 0-0043: creating new instance [ 57.446497][ T108] tda9887 0-0043: tda988[5/6/7] found [ 57.452053][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 57.460315][ T108] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 57.467638][ T108] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 57.474980][ T108] pvrusb2: Attached sub-driver tuner [ 57.480365][ T108] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 57.493525][ 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. [ 57.516835][ T108] ------------[ cut here ]------------ [ 57.522499][ T108] sysfs group 'power' not found for kobject '0-0043' [ 57.529376][ T108] WARNING: CPU: 1 PID: 108 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 57.538911][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 57.545623][ T108] CPU: 1 PID: 108 Comm: pvrusb2-context Not tainted 5.2.0-rc6+ #13 [ 57.553507][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.563749][ T108] Call Trace: [ 57.567122][ T108] dump_stack+0xca/0x13e [ 57.571866][ T108] ? sysfs_remove_group+0x110/0x1b0 [ 57.577089][ T108] panic+0x292/0x6c9 [ 57.580992][ T108] ? __warn_printk+0xf3/0xf3 [ 57.585678][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 57.590967][ T108] ? __probe_kernel_read+0x16c/0x1b0 [ 57.597196][ T108] ? __warn.cold+0x5/0x4b [ 57.601838][ T108] ? __warn+0xe4/0x1c0 [ 57.606395][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 57.612028][ T108] __warn.cold+0x20/0x4b [ 57.617512][ T108] ? __irq_work_queue_local+0xa3/0xe0 [ 57.622949][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 57.629035][ T108] report_bug+0x262/0x2a0 [ 57.633511][ T108] do_error_trap+0x12b/0x1e0 [ 57.639154][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 57.644993][ T108] do_invalid_op+0x32/0x40 [ 57.649494][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 57.654726][ T108] invalid_op+0x14/0x20 [ 57.658906][ T108] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 57.665068][ 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 [ 57.685445][ T108] RSP: 0018:ffff8881d43bfb68 EFLAGS: 00010286 [ 57.691641][ T108] RAX: 0000000000000000 RBX: ffffffff85f24140 RCX: 0000000000000000 [ 57.699708][ T108] RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103a877f5f [ 57.708285][ T108] RBP: 0000000000000000 R08: ffff8881d4443000 R09: ffffed103b665d30 [ 57.716442][ T108] R10: ffffed103b665d2f R11: ffff8881db32e97f R12: ffff8881d4a44420 [ 57.724711][ T108] R13: ffffffff85f246e0 R14: 1ffff1103a877f98 R15: ffff8881d4a44468 [ 57.732842][ T108] ? vprintk_func+0x7d/0x113 [ 57.737521][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 57.742829][ T108] dpm_sysfs_remove+0x97/0xb0 [ 57.748030][ T108] device_del+0x172/0xb80 [ 57.752455][ T108] ? __kasan_slab_free+0x145/0x180 [ 57.757800][ T108] ? kfree_const+0x51/0x60 [ 57.762452][ T108] ? __device_links_no_driver+0x240/0x240 [ 57.768315][ T108] ? kfree_const+0x51/0x60 [ 57.773047][ T108] ? kobject_put+0x18c/0x280 [ 57.777730][ T108] device_unregister+0x11/0x30 [ 57.782909][ T108] i2c_unregister_device+0x13f/0x180 [ 57.788213][ T108] ? i2c_check_mux_children+0xa0/0xa0 [ 57.793603][ T108] __unregister_client+0x78/0x90 [ 57.798615][ T108] device_for_each_child+0xf9/0x170 [ 57.803981][ T108] ? device_remove_class_symlinks+0x210/0x210 [ 57.810448][ T108] ? __radix_tree_lookup+0x1ed/0x260 [ 57.815806][ T108] i2c_del_adapter+0x2b2/0x550 [ 57.820599][ T108] ? del_timer_sync+0x121/0x130 [ 57.825583][ T108] pvr2_i2c_core_done+0x69/0xb6 [ 57.830698][ T108] pvr2_hdw_destroy+0x179/0x370 [ 57.835748][ T108] pvr2_context_destroy+0x84/0x230 [ 57.841180][ T108] pvr2_context_thread_func+0x657/0x860 [ 57.846748][ T108] ? lock_acquire+0x100/0x2b0 [ 57.851648][ T108] ? pvr2_context_destroy+0x230/0x230 [ 57.857033][ T108] ? finish_wait+0x260/0x260 [ 57.862098][ T108] ? lockdep_hardirqs_on+0x379/0x580 [ 57.867447][ T108] ? __kthread_parkme+0xfd/0x1b0 [ 57.872503][ T108] ? pvr2_context_destroy+0x230/0x230 [ 57.877892][ T108] kthread+0x30b/0x410 [ 57.882067][ T108] ? kthread_park+0x1a0/0x1a0 [ 57.886765][ T108] ret_from_fork+0x24/0x30 [ 57.891622][ T108] Kernel Offset: disabled [ 57.896116][ T108] Rebooting in 86400 seconds..