[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [ 15.027248][ 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 '10.128.0.110' (ECDSA) to the list of known hosts. syzkaller login: [ 49.021033][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 49.260947][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 49.381098][ T12] usb 1-1: config 0 has an invalid interface number: 219 but max is 0 [ 49.389381][ T12] usb 1-1: config 0 has no interface number 0 [ 49.395584][ T12] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=85.c3 [ 49.404655][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.413926][ T12] usb 1-1: config 0 descriptor?? [ 49.691063][ T12] usb 1-1: string descriptor 0 read error: -71 [ 49.698886][ T12] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 49.721650][ T108] pvrusb2: Invalid write control endpoint [ 49.728132][ T12] usb 1-1: USB disconnect, device number 2 [ 49.739387][ T108] pvrusb2: Invalid write control endpoint [ 49.745600][ T108] pvrusb2: WARNING: Detected a wedged cx25840 chip; the device will not work. [ 49.754971][ T108] pvrusb2: WARNING: Try power cycling the pvrusb2 device. [ 49.762567][ T108] pvrusb2: WARNING: Disabling further access to the device to prevent other foul-ups. [ 49.773454][ T108] pvrusb2: Device being rendered inoperable [ 49.779979][ T108] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 49.787187][ T108] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 49.795947][ T108] pvrusb2: Attached sub-driver cx25840 [ 49.805906][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 49.814404][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 49.822566][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 49.830691][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 49.838835][ 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. [ 49.859721][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 49.868303][ T108] tda9887 0-0043: creating new instance [ 49.873961][ T108] tda9887 0-0043: tda988[5/6/7] found [ 49.879452][ T108] pvrusb2: Attempted to execute control transfer when device not ok [ 49.887526][ T108] tda9887 0-0043: i2c i/o error: rc == -5 (should be 4) [ 49.894516][ T108] tuner: 0-0043: Tuner 74 found with type(s) Radio TV. [ 49.901825][ T108] pvrusb2: Attached sub-driver tuner [ 49.907148][ T108] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 49.920000][ 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. [ 49.941914][ T108] ------------[ cut here ]------------ [ 49.947404][ T108] sysfs group 'power' not found for kobject '0-0043' [ 49.954504][ T108] WARNING: CPU: 0 PID: 108 at fs/sysfs/group.c:254 sysfs_remove_group+0x155/0x1b0 [ 49.964075][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 49.971111][ T108] CPU: 0 PID: 108 Comm: pvrusb2-context Not tainted 5.2.0-rc5+ #11 [ 49.979547][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.989950][ T108] Call Trace: [ 49.993253][ T108] dump_stack+0xca/0x13e [ 49.997594][ T108] ? sysfs_remove_group+0xa0/0x1b0 [ 50.002745][ T108] panic+0x292/0x6c9 [ 50.006641][ T108] ? __warn_printk+0xf3/0xf3 [ 50.011227][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 50.016430][ T108] ? __probe_kernel_read+0x16c/0x1b0 [ 50.021711][ T108] ? __warn.cold+0x5/0x4b [ 50.026033][ T108] ? __warn+0xe4/0x1c0 [ 50.030093][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 50.035329][ T108] __warn.cold+0x20/0x4b [ 50.039584][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 50.044779][ T108] report_bug+0x262/0x2a0 [ 50.049145][ T108] do_error_trap+0x12b/0x1e0 [ 50.053736][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 50.058931][ T108] do_invalid_op+0x32/0x40 [ 50.063343][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 50.068609][ T108] invalid_op+0x14/0x20 [ 50.072757][ T108] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 50.078547][ 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 60 4a d0 85 e8 a6 1f 8c ff <0f> 0b eb 95 e8 82 48 dc ff e9 d2 fe ff ff 48 89 df e8 75 48 dc ff [ 50.098251][ T108] RSP: 0018:ffff8881d43d7b68 EFLAGS: 00010286 [ 50.104462][ T108] RAX: 0000000000000000 RBX: ffffffff85f240c0 RCX: 0000000000000000 [ 50.112437][ T108] RDX: 0000000000000000 RSI: ffffffff8127ec0d RDI: ffffed103a87af5f [ 50.120481][ T108] RBP: 0000000000000000 R08: ffff8881d43c8000 R09: 0000000000000000 [ 50.129017][ T108] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d0875da0 [ 50.136995][ T108] R13: ffffffff85f24660 R14: 1ffff1103a87af98 R15: ffff8881d0875de8 [ 50.145089][ T108] ? vprintk_func+0x7d/0x113 [ 50.149781][ T108] ? sysfs_remove_group+0x155/0x1b0 [ 50.154968][ T108] dpm_sysfs_remove+0x97/0xb0 [ 50.159650][ T108] device_del+0x172/0xb80 [ 50.163972][ T108] ? __kasan_slab_free+0x145/0x180 [ 50.179341][ T108] ? kfree_const+0x51/0x60 [ 50.184284][ T108] ? __device_links_no_driver+0x240/0x240 [ 50.190008][ T108] ? kfree_const+0x51/0x60 [ 50.194435][ T108] ? kobject_put+0x18c/0x280 [ 50.199116][ T108] device_unregister+0x11/0x30 [ 50.203984][ T108] i2c_unregister_device+0x13f/0x180 [ 50.209311][ T108] ? i2c_check_mux_children+0xa0/0xa0 [ 50.214681][ T108] __unregister_client+0x78/0x90 [ 50.219615][ T108] device_for_each_child+0xf9/0x170 [ 50.224805][ T108] ? device_remove_class_symlinks+0x210/0x210 [ 50.230867][ T108] ? __radix_tree_lookup+0x1ed/0x260 [ 50.236142][ T108] i2c_del_adapter+0x2b2/0x550 [ 50.240940][ T108] ? del_timer_sync+0x121/0x130 [ 50.245785][ T108] pvr2_i2c_core_done+0x69/0xb6 [ 50.250629][ T108] pvr2_hdw_destroy+0x179/0x370 [ 50.255512][ T108] pvr2_context_destroy+0x84/0x230 [ 50.260621][ T108] pvr2_context_thread_func+0x657/0x860 [ 50.266160][ T108] ? lock_acquire+0x100/0x2b0 [ 50.270941][ T108] ? pvr2_context_destroy+0x230/0x230 [ 50.276384][ T108] ? finish_wait+0x260/0x260 [ 50.281078][ T108] ? lockdep_hardirqs_on+0x379/0x580 [ 50.286360][ T108] ? __kthread_parkme+0xfd/0x1b0 [ 50.291291][ T108] ? pvr2_context_destroy+0x230/0x230 [ 50.296757][ T108] kthread+0x30b/0x410 [ 50.300826][ T108] ? kthread_park+0x1a0/0x1a0 [ 50.305631][ T108] ret_from_fork+0x24/0x30 [ 50.310768][ T108] Kernel Offset: disabled [ 50.315145][ T108] Rebooting in 86400 seconds..