[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. [....] startpar: service(s) returned failure: ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. 2019/05/15 03:50:34 parsed 1 programs 2019/05/15 03:50:36 executed programs: 0 syzkaller login: [ 131.646164][ T4628] e cgroup1: Unknown subsys name 'perf_event' [ 131.646342][ T4625] e cgroup1: Unknown subsys name 'perf_event' [ 131.652647][ T4623] e cgroup1: Unknown subsys name 'perf_event' [ 131.660966][ T4627] e cgroup1: Unknown subsys name 'perf_event' [ 131.671946][ T4628] e cgroup1: Unknown subsys name 'net_cls' [ 131.672744][ T4623] e cgroup1: Unknown subsys name 'net_cls' [ 131.678557][ T4625] e cgroup1: Unknown subsys name 'net_cls' [ 131.685064][ T4630] e cgroup1: Unknown subsys name 'perf_event' [ 131.689746][ T4627] e cgroup1: Unknown subsys name 'net_cls' [ 131.695830][ T4630] e cgroup1: Unknown subsys name 'net_cls' [ 131.702602][ T4631] e cgroup1: Unknown subsys name 'perf_event' [ 131.716291][ T4631] e cgroup1: Unknown subsys name 'net_cls' [ 134.618235][ T1477] usb 6-1: new low-speed USB device number 2 using dummy_hcd [ 134.638246][ T4874] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 134.645723][ T5] usb 2-1: new low-speed USB device number 2 using dummy_hcd [ 134.653228][ T12] usb 4-1: new low-speed USB device number 2 using dummy_hcd [ 134.668280][ T5613] usb 5-1: new low-speed USB device number 2 using dummy_hcd [ 134.738240][ T23] usb 3-1: new low-speed USB device number 2 using dummy_hcd [ 134.988275][ T1477] usb 6-1: config 0 interface 0 has no altsetting 0 [ 134.995037][ T1477] usb 6-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 135.004228][ T1477] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 135.014120][ T1477] usb 6-1: config 0 descriptor?? [ 135.028469][ T4874] usb 1-1: config 0 interface 0 has no altsetting 0 [ 135.035135][ T4874] usb 1-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 135.044231][ T4874] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 135.052358][ T5] usb 2-1: config 0 interface 0 has no altsetting 0 [ 135.059146][ T5] usb 2-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 135.068237][ T5] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 135.072119][ T1477] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 found [ 135.076297][ T12] usb 4-1: config 0 interface 0 has no altsetting 0 [ 135.089933][ T12] usb 4-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 135.099007][ T12] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 135.107161][ T5613] usb 5-1: config 0 interface 0 has no altsetting 0 [ 135.114036][ T5613] usb 5-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 135.118311][ T23] usb 3-1: config 0 interface 0 has no altsetting 0 [ 135.123106][ T5613] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 135.124597][ T5613] usb 5-1: config 0 descriptor?? [ 135.129791][ T23] usb 3-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 135.138064][ T5] usb 2-1: config 0 descriptor?? [ 135.142727][ T23] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 135.152786][ T4874] usb 1-1: config 0 descriptor?? [ 135.172168][ T23] usb 3-1: config 0 descriptor?? [ 135.177681][ T12] usb 4-1: config 0 descriptor?? [ 135.210632][ T5613] snd_usb_toneport 5-1:0.0: Line 6 POD Studio UX2 found [ 135.216922][ T23] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 found [ 135.219643][ T5] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 found [ 135.240766][ T12] snd_usb_toneport 4-1:0.0: Line 6 POD Studio UX2 found [ 135.248729][ T4874] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 found 2019/05/15 03:50:42 executed programs: 6 [ 137.348343][ T1477] snd_usb_toneport 6-1:0.0: set_interface failed [ 137.358705][ T4874] snd_usb_toneport 1-1:0.0: set_interface failed [ 137.365178][ T12] snd_usb_toneport 4-1:0.0: set_interface failed [ 137.377524][ T1477] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 now disconnected [ 137.379458][ T4874] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 now disconnected [ 137.393751][ T5] snd_usb_toneport 2-1:0.0: set_interface failed [ 137.403927][ T12] snd_usb_toneport 4-1:0.0: Line 6 POD Studio UX2 now disconnected [ 137.415360][ T5] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 now disconnected [ 137.429603][ T5613] snd_usb_toneport 5-1:0.0: set_interface failed [ 137.436152][ T5613] snd_usb_toneport 5-1:0.0: Line 6 POD Studio UX2 now disconnected [ 137.438538][ T1477] snd_usb_toneport: probe of 6-1:0.0 failed with error -71 [ 137.451809][ T12] snd_usb_toneport: probe of 4-1:0.0 failed with error -71 [ 137.464324][ T5] snd_usb_toneport: probe of 2-1:0.0 failed with error -71 [ 137.482858][ T5613] snd_usb_toneport: probe of 5-1:0.0 failed with error -71 [ 137.490524][ T23] snd_usb_toneport 3-1:0.0: set_interface failed [ 137.493487][ T4874] snd_usb_toneport: probe of 1-1:0.0 failed with error -71 [ 137.497482][ T23] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 now disconnected [ 137.521730][ T5] usb 2-1: USB disconnect, device number 2 [ 137.524762][ T1477] usb 6-1: USB disconnect, device number 2 [ 137.535176][ T5613] usb 5-1: USB disconnect, device number 2 [ 137.542582][ T12] usb 4-1: USB disconnect, device number 2 [ 137.548114][ T23] snd_usb_toneport: probe of 3-1:0.0 failed with error -71 [ 137.558474][ T4874] usb 1-1: USB disconnect, device number 2 [ 137.576659][ T23] usb 3-1: USB disconnect, device number 2 [ 137.908256][ T5613] usb 5-1: new low-speed USB device number 3 using dummy_hcd [ 137.915825][ T5] usb 2-1: new low-speed USB device number 3 using dummy_hcd [ 137.928239][ T1477] usb 6-1: new low-speed USB device number 3 using dummy_hcd [ 137.928274][ T4874] usb 1-1: new low-speed USB device number 3 using dummy_hcd [ 137.943202][ T12] usb 4-1: new low-speed USB device number 3 using dummy_hcd [ 137.948301][ T23] usb 3-1: new low-speed USB device number 3 using dummy_hcd [ 138.268372][ T5613] usb 5-1: config 0 interface 0 has no altsetting 0 [ 138.275093][ T5613] usb 5-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 138.284247][ T5613] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 138.292443][ T5] usb 2-1: config 0 interface 0 has no altsetting 0 [ 138.299123][ T5] usb 2-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 138.308294][ T5] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 138.317434][ T5] usb 2-1: config 0 descriptor?? [ 138.323303][ T5613] usb 5-1: config 0 descriptor?? [ 138.328428][ T12] usb 4-1: config 0 interface 0 has no altsetting 0 [ 138.335031][ T12] usb 4-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 138.338349][ T1477] usb 6-1: config 0 interface 0 has no altsetting 0 [ 138.344178][ T12] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 138.350792][ T1477] usb 6-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 138.358868][ T4874] usb 1-1: config 0 interface 0 has no altsetting 0 [ 138.367850][ T1477] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 138.374507][ T4874] usb 1-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 138.382595][ T23] usb 3-1: config 0 interface 0 has no altsetting 0 [ 138.391610][ T4874] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 138.398256][ T23] usb 3-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 138.398271][ T23] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 138.404477][ T23] usb 3-1: config 0 descriptor?? [ 138.408680][ T12] usb 4-1: config 0 descriptor?? [ 138.432813][ T1477] usb 6-1: config 0 descriptor?? [ 138.435906][ T5] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 found [ 138.447856][ T5613] snd_usb_toneport 5-1:0.0: Line 6 POD Studio UX2 found [ 138.455931][ T4874] usb 1-1: config 0 descriptor?? [ 138.470807][ T23] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 found [ 138.500637][ T1477] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 found [ 138.500642][ T4874] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 found [ 138.502630][ T12] snd_usb_toneport 4-1:0.0: Line 6 POD Studio UX2 found [ 140.358518][ T1477] snd_usb_toneport 6-1:0.0: set_interface failed [ 140.358562][ T1477] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 now disconnected [ 140.378719][ T4874] snd_usb_toneport 1-1:0.0: set_interface failed [ 140.381685][ T1477] ------------[ cut here ]------------ [ 140.385115][ T4874] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 now disconnected [ 140.385274][ T4874] snd_usb_toneport: probe of 1-1:0.0 failed with error -71 [ 140.390782][ T1477] list_del corruption. prev->next should be ffff8881d13fa728, but was ffff8881d82ebd68 [ 140.390890][ T1477] WARNING: CPU: 1 PID: 1477 at lib/list_debug.c:51 __list_del_entry_valid+0x101/0x170 [ 140.398981][ T12] snd_usb_toneport 4-1:0.0: set_interface failed [ 140.405904][ T1477] Kernel panic - not syncing: panic_on_warn set ... [ 140.421934][ T5670] udc dummy_udc.3: registering UDC driver [USB fuzzer] [ 140.425095][ T1477] CPU: 1 PID: 1477 Comm: kworker/1:2 Not tainted 5.1.0-rc3+ #8 [ 140.425102][ T1477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 140.425117][ T1477] Workqueue: usb_hub_wq hub_event [ 140.425130][ T1477] Call Trace: [ 140.425152][ T1477] dump_stack+0xca/0x13e [ 140.431868][ T12] snd_usb_toneport 4-1:0.0: Line 6 POD Studio UX2 now disconnected [ 140.438076][ T1477] ? __list_del_entry_valid+0x10/0x170 [ 140.438088][ T1477] panic+0x292/0x5e1 [ 140.438100][ T1477] ? __warn_printk+0xf3/0xf3 [ 140.438111][ T1477] ? __list_del_entry_valid+0x101/0x170 [ 140.438130][ T1477] ? __probe_kernel_read+0x16c/0x1b0 [ 140.449613][ T4874] dummy_hcd dummy_hcd.0: port status 0x00010100 has changes [ 140.452848][ T1477] ? __warn.cold+0x5/0x53 [ 140.452859][ T1477] ? __warn+0xe4/0x1c0 [ 140.463416][ T5670] dummy_hcd dummy_hcd.3: port status 0x00010101 has changes [ 140.467985][ T1477] ? __list_del_entry_valid+0x101/0x170 [ 140.471803][ T12] snd_usb_toneport: probe of 4-1:0.0 failed with error -71 [ 140.475546][ T1477] __warn.cold+0x20/0x53 [ 140.475560][ T1477] ? __list_del_entry_valid+0x101/0x170 [ 140.475573][ T1477] report_bug+0x262/0x2a0 [ 140.475587][ T1477] do_error_trap+0x12b/0x1e0 [ 140.475599][ T1477] ? __list_del_entry_valid+0x101/0x170 [ 140.475617][ T1477] do_invalid_op+0x32/0x40 [ 140.484120][ T4874] usb 1-1: USB disconnect, device number 3 [ 140.488939][ T1477] ? __list_del_entry_valid+0x101/0x170 [ 140.488952][ T1477] invalid_op+0x14/0x20 [ 140.488967][ T1477] RIP: 0010:__list_del_entry_valid+0x101/0x170 [ 140.488979][ T1477] Code: c4 08 31 c0 41 5c 41 5d c3 4c 89 e2 48 c7 c7 20 f7 d8 85 e8 1c 2a 35 ff 0f 0b 31 c0 eb c6 48 c7 c7 80 f7 d8 85 e8 0a 2a 35 ff <0f> 0b 31 c0 eb b4 48 c7 c7 e0 f7 d8 85 e8 f8 29 35 ff 0f 0b 31 c0 [ 140.488986][ T1477] RSP: 0018:ffff8881d7a1f078 EFLAGS: 00010282 [ 140.488996][ T1477] RAX: 0000000000000000 RBX: ffff8881d13fa630 RCX: 0000000000000000 [ 140.489003][ T1477] RDX: 0000000000000000 RSI: ffffffff8127bbcd RDI: ffffed103af43e01 [ 140.489010][ T1477] RBP: ffff8881d13fa640 R08: ffff8881d7a10000 R09: 0000000000000000 [ 140.489017][ T1477] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d13fad68 [ 140.489024][ T1477] R13: ffff8881d7f1d858 R14: ffff8881d13fa630 R15: ffff8881d13fa718 [ 140.489045][ T1477] ? vprintk_func+0x7d/0x113 [ 140.498818][ T12] dummy_hcd dummy_hcd.3: port status 0x00010101 has changes [ 140.503056][ T1477] ? __list_del_entry_valid+0x101/0x170 [ 140.508864][ T12] usb 4-1: USB disconnect, device number 3 [ 140.515597][ T1477] snd_info_free_entry+0x132/0x340 [ 140.515611][ T1477] snd_info_card_free+0x3e/0x80 [ 140.515625][ T1477] ? line6_write_data+0x2d0/0x2d0 [ 140.515636][ T1477] release_card_device+0x63/0xd0 [ 140.515653][ T1477] ? card_id_show_attr+0x30/0x30 [ 140.707951][ T1477] device_release+0x78/0x210 [ 140.712535][ T1477] ? dev_attr_show+0xa0/0xa0 [ 140.717116][ T1477] kobject_put+0x17d/0x270 [ 140.721522][ T1477] put_device+0x1c/0x30 [ 140.725672][ T1477] snd_card_free_when_closed+0x35/0x50 [ 140.731132][ T1477] line6_disconnect.cold+0xa3/0xbc [ 140.736235][ T1477] line6_probe+0xb1e/0x1140 [ 140.740737][ T1477] ? line6_toneport_disconnect+0x1a0/0x1a0 [ 140.746538][ T1477] ? line6_disconnect+0x1f0/0x1f0 [ 140.751553][ T1477] ? rpm_callback+0x230/0x230 [ 140.756234][ T1477] ? lockdep_hardirqs_on+0x379/0x580 [ 140.761550][ T1477] ? __pm_runtime_resume+0x111/0x180 [ 140.766832][ T1477] usb_probe_interface+0x30d/0x7b0 [ 140.771940][ T1477] ? usb_probe_device+0x110/0x110 [ 140.776955][ T1477] really_probe+0x296/0x680 [ 140.781451][ T1477] driver_probe_device+0xf9/0x200 [ 140.786466][ T1477] __device_attach_driver+0x1c4/0x230 [ 140.791827][ T1477] ? driver_allows_async_probing+0x160/0x160 [ 140.797797][ T1477] bus_for_each_drv+0x15e/0x1e0 [ 140.802638][ T1477] ? bus_rescan_devices+0x20/0x20 [ 140.807666][ T1477] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 140.813464][ T1477] ? lockdep_hardirqs_on+0x379/0x580 [ 140.818754][ T1477] __device_attach+0x21e/0x360 [ 140.823524][ T1477] ? device_bind_driver+0xd0/0xd0 [ 140.828550][ T1477] bus_probe_device+0x1ec/0x2a0 [ 140.833401][ T1477] ? blocking_notifier_call_chain+0x54/0xa0 [ 140.839287][ T1477] device_add+0xaf4/0x1700 [ 140.843698][ T1477] ? uevent_store+0x50/0x50 [ 140.848207][ T1477] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 140.854010][ T1477] usb_set_configuration+0xdf2/0x1670 [ 140.859379][ T1477] generic_probe+0x9d/0xd5 [ 140.863792][ T1477] usb_probe_device+0xa8/0x110 [ 140.868552][ T1477] ? usb_suspend+0x620/0x620 [ 140.873138][ T1477] really_probe+0x296/0x680 [ 140.877635][ T1477] driver_probe_device+0xf9/0x200 [ 140.882673][ T1477] __device_attach_driver+0x1c4/0x230 [ 140.888066][ T1477] ? driver_allows_async_probing+0x160/0x160 [ 140.894080][ T1477] bus_for_each_drv+0x15e/0x1e0 [ 140.898952][ T1477] ? bus_rescan_devices+0x20/0x20 [ 140.903998][ T1477] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 140.909818][ T1477] ? lockdep_hardirqs_on+0x379/0x580 [ 140.915121][ T1477] __device_attach+0x21e/0x360 [ 140.919909][ T1477] ? device_bind_driver+0xd0/0xd0 [ 140.924946][ T1477] bus_probe_device+0x1ec/0x2a0 [ 140.929809][ T1477] ? blocking_notifier_call_chain+0x54/0xa0 [ 140.935723][ T1477] device_add+0xaf4/0x1700 [ 140.940155][ T1477] ? uevent_store+0x50/0x50 [ 140.944671][ T1477] usb_new_device.cold+0x8b8/0x1030 [ 140.949883][ T1477] ? usb_port_suspend+0xa40/0xa40 [ 140.954920][ T1477] ? mark_held_locks+0x9f/0xe0 [ 140.959699][ T1477] ? _raw_spin_unlock_irq+0x24/0x30 [ 140.964909][ T1477] hub_event+0x1ac9/0x35a0 [ 140.969340][ T1477] ? hub_port_debounce+0x260/0x260 [ 140.974468][ T1477] process_one_work+0x90a/0x1580 [ 140.979419][ T1477] ? wq_pool_ids_show+0x300/0x300 [ 140.984455][ T1477] ? do_raw_spin_lock+0x11a/0x280 [ 140.989488][ T1477] worker_thread+0x7ab/0xe20 [ 140.994097][ T1477] ? process_one_work+0x1580/0x1580 [ 140.999303][ T1477] kthread+0x30e/0x420 [ 141.003381][ T1477] ? kthread_park+0x1a0/0x1a0 [ 141.008067][ T1477] ret_from_fork+0x3a/0x50 [ 141.013055][ T1477] Kernel Offset: disabled [ 141.017453][ T1477] Rebooting in 86400 seconds..