[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 14.521518][ C1] random: crng init done [....] 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 '10.128.10.9' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 22.207201][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 22.567225][ T12] usb 1-1: config 0 has an invalid interface number: 36 but max is 0 [ 22.575553][ T12] usb 1-1: config 0 has no interface number 0 [ 22.581850][ T12] usb 1-1: New USB device found, idVendor=11ba, idProduct=1001, bcdDevice=5f.90 [ 22.590912][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 22.600160][ T12] usb 1-1: config 0 descriptor?? executing program [ 22.877346][ T12] usb 1-1: string descriptor 0 read error: -71 [ 22.885575][ T12] pvrusb2: Hardware description: OnAir USB2 Hybrid USB tuner [ 22.907510][ T102] pvrusb2: Invalid write control endpoint [ 22.908725][ T12] usb 1-1: USB disconnect, device number 2 [ 22.921646][ T102] pvrusb2: Invalid write control endpoint [ 22.927639][ T102] pvrusb2: Invalid write control endpoint [ 22.933376][ T102] pvrusb2: Invalid write control endpoint [ 22.939199][ T102] pvrusb2: Invalid write control endpoint [ 22.944917][ T102] pvrusb2: Invalid write control endpoint [ 22.950901][ T102] pvrusb2: Invalid write control endpoint [ 22.956607][ T102] pvrusb2: Invalid write control endpoint [ 22.962578][ T102] pvrusb2: Invalid write control endpoint [ 22.968371][ T102] pvrusb2: Invalid write control endpoint [ 22.974087][ T102] pvrusb2: Invalid write control endpoint [ 22.979830][ T102] pvrusb2: Invalid write control endpoint [ 22.985550][ T102] pvrusb2: Invalid write control endpoint [ 22.991285][ T102] pvrusb2: Invalid write control endpoint [ 22.996997][ T102] pvrusb2: Invalid write control endpoint [ 23.002726][ T102] pvrusb2: Invalid write control endpoint [ 23.008475][ T102] pvrusb2: Invalid write control endpoint [ 23.014177][ T102] pvrusb2: Invalid write control endpoint [ 23.019917][ T102] pvrusb2: Invalid write control endpoint [ 23.025632][ T102] pvrusb2: Invalid write control endpoint [ 23.031370][ T102] pvrusb2: Invalid write control endpoint [ 23.037109][ T102] pvrusb2: Invalid write control endpoint [ 23.042808][ T102] pvrusb2: Invalid write control endpoint [ 23.048547][ T102] pvrusb2: Invalid write control endpoint [ 23.054299][ T102] pvrusb2: Invalid write control endpoint [ 23.060187][ T102] pvrusb2: Invalid write control endpoint [ 23.065896][ T102] pvrusb2: Invalid write control endpoint [ 23.071633][ T102] pvrusb2: Invalid write control endpoint [ 23.077393][ T102] pvrusb2: Invalid write control endpoint [ 23.083137][ T102] pvrusb2: Invalid write control endpoint [ 23.088885][ T102] pvrusb2: Invalid write control endpoint [ 23.094759][ T102] pvrusb2: Invalid write control endpoint [ 23.100520][ T102] pvrusb2: Invalid write control endpoint [ 23.106867][ T102] pvrusb2: Module ID 3 (saa7115) for device OnAir USB2 Hybrid USB tuner failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 23.128543][ T102] cs53l32a 0-0011: chip found @ 0x22 (pvrusb2_a) [ 23.134995][ T102] pvrusb2: Invalid write control endpoint [ 23.140826][ T102] pvrusb2: Invalid write control endpoint [ 23.146595][ T102] pvrusb2: Invalid write control endpoint [ 23.152867][ T102] pvrusb2: Invalid write control endpoint [ 23.158628][ T102] pvrusb2: Invalid write control endpoint [ 23.164335][ T102] pvrusb2: Invalid write control endpoint [ 23.170074][ T102] pvrusb2: Invalid write control endpoint [ 23.175976][ T102] pvrusb2: Invalid write control endpoint [ 23.181722][ T102] pvrusb2: Invalid write control endpoint [ 23.187464][ T102] pvrusb2: Invalid write control endpoint [ 23.193162][ T102] pvrusb2: Invalid write control endpoint [ 23.198934][ T102] pvrusb2: Invalid write control endpoint [ 23.204799][ T102] pvrusb2: Invalid write control endpoint [ 23.210536][ T102] pvrusb2: Invalid write control endpoint [ 23.216331][ T102] pvrusb2: Invalid write control endpoint [ 23.222081][ T102] pvrusb2: Invalid write control endpoint [ 23.227817][ T102] pvrusb2: Invalid write control endpoint [ 23.233526][ T102] pvrusb2: Invalid write control endpoint [ 23.239279][ T102] pvrusb2: Invalid write control endpoint [ 23.244998][ T102] pvrusb2: Invalid write control endpoint [ 23.250747][ T102] pvrusb2: Invalid write control endpoint [ 23.257003][ T102] pvrusb2: Attached sub-driver cs53l32a [ 23.266641][ T102] pvrusb2: Invalid write control endpoint [ 23.272843][ T102] pvrusb2: Invalid write control endpoint [ 23.278617][ T102] pvrusb2: Invalid write control endpoint [ 23.284343][ T102] pvrusb2: Invalid write control endpoint [ 23.290094][ T102] pvrusb2: Module ID 4 (tuner) for device OnAir USB2 Hybrid USB tuner failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 23.306939][ T102] pvrusb2: Device being rendered inoperable [ 23.313057][ T102] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 23.325832][ T102] 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. [ 23.347584][ T102] ------------[ cut here ]------------ [ 23.353080][ T102] sysfs group 'power' not found for kobject 'i2c-0' [ 23.359758][ T102] WARNING: CPU: 0 PID: 102 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 [ 23.368946][ T102] Kernel panic - not syncing: panic_on_warn set ... [ 23.375530][ T102] CPU: 0 PID: 102 Comm: pvrusb2-context Not tainted 5.5.0-rc1-syzkaller #0 [ 23.384107][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.394149][ T102] Call Trace: [ 23.397432][ T102] dump_stack+0xef/0x16e [ 23.401660][ T102] ? sysfs_remove_group+0x110/0x1b0 [ 23.406847][ T102] panic+0x2aa/0x6e1 [ 23.410732][ T102] ? add_taint.cold+0x16/0x16 [ 23.415448][ T102] ? __probe_kernel_read+0x188/0x1d0 [ 23.420714][ T102] ? __warn.cold+0x14/0x30 [ 23.425111][ T102] ? __warn+0xd5/0x1c8 [ 23.429159][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 23.434335][ T102] __warn.cold+0x2f/0x30 [ 23.438558][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 23.443776][ T102] report_bug+0x27b/0x2f0 [ 23.448085][ T102] do_error_trap+0x12b/0x1e0 [ 23.452651][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 23.457825][ T102] do_invalid_op+0x32/0x40 [ 23.462219][ T102] ? sysfs_remove_group+0x155/0x1b0 [ 23.467393][ T102] invalid_op+0x23/0x30 [ 23.471526][ T102] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 23.477362][ 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 20 bc d0 85 e8 23 1b 86 ff <0f> 0b eb 95 e8 32 85 d9 ff e9 d2 fe ff ff 48 89 df e8 25 85 d9 ff [ 23.496954][ T102] RSP: 0018:ffff8881d4f2fc40 EFLAGS: 00010282 [ 23.503047][ T102] RAX: 0000000000000000 RBX: ffffffff85f37aa0 RCX: 0000000000000000 [ 23.510997][ T102] RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103a9e5f7a [ 23.519015][ T102] RBP: 0000000000000000 R08: ffff8881d56e3100 R09: 0000000000000000 [ 23.527015][ T102] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d1afc338 [ 23.534966][ T102] R13: ffffffff85f38040 R14: ffff8881d1afc920 R15: ffff8881d56e3100 [ 23.542925][ T102] ? vprintk_func+0x7d/0x113 [ 23.547494][ T102] dpm_sysfs_remove+0x97/0xb0 [ 23.552148][ T102] device_del+0x18b/0xd30 [ 23.556482][ T102] ? __pm_runtime_disable+0x148/0x3d0 [ 23.561828][ T102] ? device_create_with_groups+0x120/0x120 [ 23.567635][ T102] ? pm_runtime_barrier+0x260/0x260 [ 23.572851][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 23.577851][ T102] ? lockdep_init_map+0x1b0/0x5e0 [ 23.582864][ T102] device_unregister+0x11/0x30 [ 23.587608][ T102] i2c_del_adapter+0x42b/0x590 [ 23.592348][ T102] ? del_timer_sync+0x115/0x130 [ 23.597178][ T102] pvr2_i2c_core_done+0x69/0xb6 [ 23.602006][ T102] pvr2_hdw_destroy+0x179/0x370 [ 23.606832][ T102] pvr2_context_destroy+0x84/0x230 [ 23.611930][ T102] pvr2_context_thread_func+0x657/0x860 [ 23.617454][ T102] ? lock_acquire+0x127/0x320 [ 23.622116][ T102] ? pvr2_context_destroy+0x230/0x230 [ 23.627469][ T102] ? finish_wait+0x260/0x260 [ 23.632033][ T102] ? lockdep_hardirqs_on+0x382/0x580 [ 23.637307][ T102] ? __kthread_parkme+0x10a/0x1c0 [ 23.642322][ T102] ? pvr2_context_destroy+0x230/0x230 [ 23.647782][ T102] kthread+0x318/0x420 [ 23.651827][ T102] ? kthread_create_on_node+0xf0/0xf0 [ 23.657173][ T102] ret_from_fork+0x24/0x30 [ 23.662321][ T102] Kernel Offset: disabled [ 23.666699][ T102] Rebooting in 86400 seconds..