[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. [ 17.032478][ C1] random: crng init done [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.51' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 53.010450][ T2490] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 53.018903][ T12] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 53.042959][ T30] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 53.050702][ T4615] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 53.058224][ T5] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 53.066006][ T4616] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 53.280787][ T2490] usb 1-1: Using ep0 maxpacket: 8 [ 53.290455][ T4615] usb 3-1: Using ep0 maxpacket: 8 [ 53.310422][ T30] usb 2-1: Using ep0 maxpacket: 8 [ 53.310528][ T5] usb 5-1: Using ep0 maxpacket: 8 [ 53.320962][ T4616] usb 6-1: Using ep0 maxpacket: 8 [ 53.326129][ T12] usb 4-1: Using ep0 maxpacket: 8 [ 53.411015][ T2490] usb 1-1: config 0 interface 0 has no altsetting 0 [ 53.417851][ T2490] usb 1-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 53.427232][ T2490] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 53.435413][ T4615] usb 3-1: config 0 interface 0 has no altsetting 0 [ 53.442273][ T4615] usb 3-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 53.450495][ T30] usb 2-1: config 0 interface 0 has no altsetting 0 [ 53.451495][ T4615] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 53.458176][ T30] usb 2-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 53.466500][ T4616] usb 6-1: config 0 interface 0 has no altsetting 0 [ 53.475750][ T30] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 53.482512][ T4616] usb 6-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 53.494884][ T30] usb 2-1: config 0 descriptor?? [ 53.499685][ T4616] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 53.505592][ T2490] usb 1-1: config 0 descriptor?? [ 53.518397][ T4615] usb 3-1: config 0 descriptor?? [ 53.523943][ T4616] usb 6-1: config 0 descriptor?? [ 53.530611][ T12] usb 4-1: config 0 interface 0 has no altsetting 0 [ 53.538591][ T12] usb 4-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 53.547853][ T12] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 53.556135][ T5] usb 5-1: config 0 interface 0 has no altsetting 0 [ 53.562934][ T5] usb 5-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 53.565487][ T30] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 found [ 53.571998][ T5] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 53.574253][ T2490] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 found [ 53.596236][ T4615] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 found [ 53.604881][ T4616] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 found [ 53.612770][ T5] usb 5-1: config 0 descriptor?? [ 53.618919][ T12] usb 4-1: config 0 descriptor?? [ 53.652297][ T5] snd_usb_toneport 5-1:0.0: Line 6 POD Studio UX2 found [ 53.662422][ T12] snd_usb_toneport 4-1:0.0: Line 6 POD Studio UX2 found executing program executing program executing program executing program [ 53.791470][ T2490] snd_usb_toneport 1-1:0.0: read request failed (error -71) [ 53.798915][ T4615] snd_usb_toneport 3-1:0.0: read request failed (error -71) [ 53.810570][ T30] snd_usb_toneport 2-1:0.0: read request failed (error -71) [ 53.818360][ T2490] snd_usb_toneport 1-1:0.0: read request failed (error -71) [ 53.826195][ T4615] snd_usb_toneport 3-1:0.0: read request failed (error -71) [ 53.840513][ T30] snd_usb_toneport 2-1:0.0: read request failed (error -71) [ 53.850622][ T4615] snd_usb_toneport 3-1:0.0: write request failed (error -71) [ 53.858370][ T2490] snd_usb_toneport 1-1:0.0: write request failed (error -71) [ 53.866199][ T4616] snd_usb_toneport 6-1:0.0: read request failed (error -71) [ 53.874116][ T30] snd_usb_toneport 2-1:0.0: write request failed (error -71) executing program executing program [ 53.892925][ T4616] snd_usb_toneport 6-1:0.0: read request failed (error -71) [ 53.900588][ T30] usb 2-1: send failed (error -71) [ 53.901186][ T4615] usb 3-1: send failed (error -71) [ 53.911232][ T5] snd_usb_toneport 5-1:0.0: read request failed (error -71) [ 53.918848][ T12] snd_usb_toneport 4-1:0.0: read request failed (error -71) [ 53.926777][ T2490] usb 1-1: send failed (error -71) [ 53.932742][ T30] usb 2-1: send failed (error -71) [ 53.944126][ T30] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 now attached [ 53.951978][ T12] snd_usb_toneport 4-1:0.0: read request failed (error -71) [ 53.959408][ T5] snd_usb_toneport 5-1:0.0: read request failed (error -71) [ 53.959668][ T30] usb 2-1: USB disconnect, device number 2 [ 53.967182][ T2490] usb 1-1: send failed (error -71) [ 53.976735][ T30] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 now disconnected [ 53.978730][ T4616] snd_usb_toneport 6-1:0.0: write request failed (error -71) [ 53.995211][ T4615] usb 3-1: send failed (error -71) [ 54.001140][ T12] snd_usb_toneport 4-1:0.0: write request failed (error -71) [ 54.011980][ T2490] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 now attached [ 54.020597][ T5] snd_usb_toneport 5-1:0.0: write request failed (error -71) [ 54.031693][ T4615] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 now attached [ 54.047218][ T12] usb 4-1: send failed (error -71) [ 54.052855][ T4616] usb 6-1: send failed (error -71) [ 54.058880][ T2490] usb 1-1: USB disconnect, device number 2 [ 54.070575][ T5] usb 5-1: send failed (error -71) [ 54.076071][ T12] usb 4-1: send failed (error -71) [ 54.089099][ T4615] usb 3-1: USB disconnect, device number 2 [ 54.096237][ T5] usb 5-1: send failed (error -71) [ 54.105105][ T12] ------------[ cut here ]------------ [ 54.111338][ T12] proc_dir_entry 'asound/PODStudioUX2' already registered [ 54.118734][ T12] WARNING: CPU: 0 PID: 12 at fs/proc/generic.c:359 proc_register+0x3d4/0x540 [ 54.128592][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 54.135276][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc3+ #8 [ 54.142641][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.153173][ T12] Workqueue: usb_hub_wq hub_event [ 54.158194][ T12] Call Trace: [ 54.161516][ T12] dump_stack+0xca/0x13e [ 54.165870][ T12] ? proc_register+0x3d0/0x540 [ 54.171197][ T12] panic+0x292/0x5e1 [ 54.175172][ T12] ? __warn_printk+0xf3/0xf3 [ 54.181054][ T12] ? proc_register+0x3d4/0x540 [ 54.185916][ T12] ? __probe_kernel_read+0x16c/0x1b0 [ 54.191429][ T12] ? __warn.cold+0x5/0x53 [ 54.195739][ T12] ? __warn+0xe4/0x1c0 [ 54.199948][ T12] ? proc_register+0x3d4/0x540 [ 54.204707][ T12] __warn.cold+0x20/0x53 [ 54.208953][ T12] ? proc_register+0x3d4/0x540 [ 54.214241][ T12] report_bug+0x262/0x2a0 [ 54.218631][ T12] do_error_trap+0x12b/0x1e0 [ 54.223359][ T12] ? proc_register+0x3d4/0x540 [ 54.228196][ T12] do_invalid_op+0x32/0x40 [ 54.232652][ T12] ? proc_register+0x3d4/0x540 [ 54.237469][ T12] invalid_op+0x14/0x20 [ 54.241629][ T12] RIP: 0010:proc_register+0x3d4/0x540 [ 54.246986][ T12] Code: ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 61 01 00 00 48 8b 04 24 48 c7 c7 20 27 cf 85 48 8b b0 d0 00 00 00 e8 f7 75 90 ff <0f> 0b 48 c7 c7 c0 14 db 86 e8 ee 87 e6 03 48 8b 4c 24 28 48 b8 00 [ 54.267144][ T12] RSP: 0018:ffff8881d9e0ef60 EFLAGS: 00010282 [ 54.273715][ T12] RAX: 0000000000000000 RBX: ffff8881d7f1d480 RCX: 0000000000000000 [ 54.281764][ T12] RDX: 0000000000000000 RSI: ffffffff8127bbcd RDI: ffffed103b3c1dde [ 54.289857][ T12] RBP: ffff8881cefd58c0 R08: ffff8881d9df9800 R09: ffffed103b643cd3 [ 54.297845][ T12] R10: ffffed103b643cd2 R11: ffff8881db21e697 R12: 0000000000000000 [ 54.305825][ T12] R13: dffffc0000000000 R14: ffff8881d2da7478 R15: 000000000000000c [ 54.313886][ T12] ? vprintk_func+0x7d/0x113 [ 54.318588][ T12] proc_symlink+0x142/0x1c0 [ 54.323115][ T12] ? proc_register+0x540/0x540 [ 54.328014][ T12] ? snd_info_register+0xd7/0x3e0 [ 54.333112][ T12] snd_info_card_register+0x146/0x1e0 [ 54.338475][ T12] snd_card_register+0x433/0x5c0 [ 54.343533][ T12] ? toneport_setup+0x15e/0x360 [ 54.348484][ T12] ? snd_card_set_id+0x90/0x90 [ 54.353253][ T12] ? up_write+0x18/0x150 [ 54.357578][ T12] toneport_init+0x251/0x637 [ 54.362184][ T12] ? usb_set_interface+0x79c/0xa50 [ 54.367283][ T12] line6_probe+0xafc/0x1140 [ 54.371767][ T12] ? line6_toneport_disconnect+0x1a0/0x1a0 [ 54.377571][ T12] ? line6_disconnect+0x1f0/0x1f0 [ 54.382690][ T12] ? rpm_callback+0x230/0x230 [ 54.387361][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 54.392627][ T12] ? __pm_runtime_resume+0x111/0x180 [ 54.398046][ T12] usb_probe_interface+0x30d/0x7b0 [ 54.403450][ T12] ? usb_probe_device+0x110/0x110 [ 54.408475][ T12] really_probe+0x296/0x680 [ 54.412976][ T12] driver_probe_device+0xf9/0x200 [ 54.418065][ T12] __device_attach_driver+0x1c4/0x230 [ 54.423601][ T12] ? driver_allows_async_probing+0x160/0x160 [ 54.429565][ T12] bus_for_each_drv+0x15e/0x1e0 [ 54.434425][ T12] ? bus_rescan_devices+0x20/0x20 [ 54.439451][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 54.445264][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 54.450755][ T12] __device_attach+0x21e/0x360 [ 54.455521][ T12] ? device_bind_driver+0xd0/0xd0 [ 54.460548][ T12] bus_probe_device+0x1ec/0x2a0 [ 54.465420][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 54.471304][ T12] device_add+0xaf4/0x1700 [ 54.475721][ T12] ? uevent_store+0x50/0x50 [ 54.480440][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 54.486238][ T12] usb_set_configuration+0xdf2/0x1670 [ 54.492092][ T12] generic_probe+0x9d/0xd5 [ 54.496509][ T12] usb_probe_device+0xa8/0x110 [ 54.501258][ T12] ? usb_suspend+0x620/0x620 [ 54.505840][ T12] really_probe+0x296/0x680 [ 54.510491][ T12] driver_probe_device+0xf9/0x200 [ 54.515626][ T12] __device_attach_driver+0x1c4/0x230 [ 54.520996][ T12] ? driver_allows_async_probing+0x160/0x160 [ 54.527135][ T12] bus_for_each_drv+0x15e/0x1e0 [ 54.532043][ T12] ? bus_rescan_devices+0x20/0x20 [ 54.537079][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 54.543157][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 54.548555][ T12] __device_attach+0x21e/0x360 [ 54.553580][ T12] ? device_bind_driver+0xd0/0xd0 [ 54.558636][ T12] bus_probe_device+0x1ec/0x2a0 [ 54.563720][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 54.569820][ T12] device_add+0xaf4/0x1700 [ 54.574497][ T12] ? uevent_store+0x50/0x50 [ 54.579099][ T12] usb_new_device.cold+0x8b8/0x1030 [ 54.584947][ T12] ? usb_port_suspend+0xa40/0xa40 [ 54.589982][ T12] ? mark_held_locks+0x9f/0xe0 [ 54.594850][ T12] ? _raw_spin_unlock_irq+0x24/0x30 [ 54.600056][ T12] hub_event+0x1ac9/0x35a0 [ 54.604543][ T12] ? hub_port_debounce+0x260/0x260 [ 54.609755][ T12] process_one_work+0x90a/0x1580 [ 54.614722][ T12] ? wq_pool_ids_show+0x300/0x300 [ 54.619942][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 54.624990][ T12] worker_thread+0x96/0xe20 [ 54.629517][ T12] ? process_one_work+0x1580/0x1580 [ 54.634913][ T12] kthread+0x30e/0x420 [ 54.639090][ T12] ? kthread_park+0x1a0/0x1a0 [ 54.644140][ T12] ret_from_fork+0x3a/0x50 [ 54.649410][ T12] Kernel Offset: disabled [ 54.653986][ T12] Rebooting in 86400 seconds..