[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 '10.128.0.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.022019][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 25.262011][ T21] usb 1-1: Using ep0 maxpacket: 8 [ 25.382057][ T21] usb 1-1: config 0 has an invalid interface number: 97 but max is 0 [ 25.390229][ T21] usb 1-1: config 0 has no interface number 0 [ 25.396415][ T21] usb 1-1: New USB device found, idVendor=07fd, idProduct=0004, bcdDevice=d5.ac [ 25.405459][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 25.414718][ T21] usb 1-1: config 0 descriptor?? executing program [ 25.692081][ T21] usb 1-1: string descriptor 0 read error: -71 [ 25.700374][ T21] usb 1-1: Waiting for MOTU Microbook II to boot up... [ 25.707511][ T21] kasan: CONFIG_KASAN_INLINE enabled [ 25.712873][ T21] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.720933][ T21] general protection fault: 0000 [#1] SMP KASAN [ 25.727146][ T21] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.3.0-rc2+ #23 [ 25.734576][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.744612][ T21] Workqueue: usb_hub_wq hub_event [ 25.749627][ T21] RIP: 0010:snd_usb_pipe_sanity_check+0x80/0x130 [ 25.755929][ T21] Code: 48 c1 ea 03 80 3c 02 00 0f 85 b3 00 00 00 48 8b 6d 00 c1 eb 1e 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 03 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 7b 48 b8 00 00 [ 25.775514][ T21] RSP: 0018:ffff8881da2f7010 EFLAGS: 00010246 [ 25.781551][ T21] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff8484d252 [ 25.789497][ T21] RDX: 0000000000000000 RSI: ffffffff8484d26c RDI: 0000000000000003 [ 25.797461][ T21] RBP: 0000000000000000 R08: ffff8881da22e000 R09: ffffed103b665d58 [ 25.805417][ T21] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: 0000000000000000 [ 25.813390][ T21] R13: ffff8881d400ba80 R14: 1ffff1103b45ee06 R15: ffff8881c79244a0 [ 25.821339][ T21] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 25.830246][ T21] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.836814][ T21] CR2: 00007f31b2a87000 CR3: 00000001d3fd4000 CR4: 00000000001406e0 [ 25.844765][ T21] Call Trace: [ 25.848057][ T21] snd_usb_motu_microbookii_communicate.constprop.0+0xa0/0x2fb [ 25.855582][ T21] ? create_standard_audio_quirk.cold+0x77/0x77 [ 25.861801][ T21] snd_usb_apply_boot_quirk.cold+0x163/0x370 [ 25.867757][ T21] ? snd_usb_apply_interface_quirk+0x5f0/0x5f0 [ 25.873883][ T21] ? mark_lock+0xbc/0x1130 [ 25.878272][ T21] ? __lock_acquire+0x145e/0x3b50 [ 25.883270][ T21] ? mark_lock+0xbc/0x1130 [ 25.887663][ T21] usb_audio_probe+0x2ec/0x2010 [ 25.892491][ T21] ? usb_audio_resume+0x20/0x20 [ 25.897317][ T21] ? mark_held_locks+0x9f/0xe0 [ 25.902064][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 25.907856][ T21] usb_probe_interface+0x305/0x7a0 [ 25.912943][ T21] ? usb_probe_device+0x100/0x100 [ 25.917941][ T21] really_probe+0x281/0x650 [ 25.922419][ T21] driver_probe_device+0x101/0x1b0 [ 25.927522][ T21] __device_attach_driver+0x1c2/0x220 [ 25.932870][ T21] ? driver_allows_async_probing+0x160/0x160 [ 25.938820][ T21] bus_for_each_drv+0x15c/0x1e0 [ 25.943657][ T21] ? bus_rescan_devices+0x20/0x20 [ 25.948661][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 25.954444][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 25.959702][ T21] __device_attach+0x217/0x360 [ 25.964455][ T21] ? device_bind_driver+0xd0/0xd0 [ 25.969455][ T21] ? kobject_uevent_env+0x29e/0x1160 [ 25.974736][ T21] ? kobject_uevent_env+0x2a8/0x1160 [ 25.980010][ T21] bus_probe_device+0x1e4/0x290 [ 25.984834][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 25.990702][ T21] device_add+0xae6/0x16f0 [ 25.995094][ T21] ? uevent_store+0x50/0x50 [ 25.999573][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 26.005360][ T21] usb_set_configuration+0xdf6/0x1670 [ 26.010710][ T21] generic_probe+0x9d/0xd5 [ 26.015124][ T21] usb_probe_device+0x99/0x100 [ 26.019888][ T21] ? usb_suspend+0x620/0x620 [ 26.024452][ T21] really_probe+0x281/0x650 [ 26.028928][ T21] driver_probe_device+0x101/0x1b0 [ 26.034013][ T21] __device_attach_driver+0x1c2/0x220 [ 26.039359][ T21] ? driver_allows_async_probing+0x160/0x160 [ 26.045310][ T21] bus_for_each_drv+0x15c/0x1e0 [ 26.050142][ T21] ? bus_rescan_devices+0x20/0x20 [ 26.055159][ T21] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 26.060937][ T21] ? lockdep_hardirqs_on+0x379/0x580 [ 26.066195][ T21] __device_attach+0x217/0x360 [ 26.070933][ T21] ? device_bind_driver+0xd0/0xd0 [ 26.075947][ T21] ? kobject_uevent_env+0x29e/0x1160 [ 26.081206][ T21] ? kobject_uevent_env+0x2a8/0x1160 [ 26.086464][ T21] bus_probe_device+0x1e4/0x290 [ 26.091291][ T21] ? blocking_notifier_call_chain+0x54/0xa0 [ 26.097170][ T21] device_add+0xae6/0x16f0 [ 26.101581][ T21] ? uevent_store+0x50/0x50 [ 26.106083][ T21] usb_new_device.cold+0x6a4/0xe79 [ 26.111168][ T21] hub_event+0x1b5c/0x3640 [ 26.115559][ T21] ? hub_port_debounce+0x260/0x260 [ 26.120643][ T21] process_one_work+0x92b/0x1530 [ 26.125557][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 26.130906][ T21] ? do_raw_spin_lock+0x11a/0x280 [ 26.135902][ T21] worker_thread+0x96/0xe20 [ 26.140406][ T21] ? process_one_work+0x1530/0x1530 [ 26.145625][ T21] kthread+0x318/0x420 [ 26.149682][ T21] ? kthread_create_on_node+0xf0/0xf0 [ 26.155039][ T21] ret_from_fork+0x24/0x30 [ 26.159422][ T21] Modules linked in: [ 26.163332][ T21] ---[ end trace 41e8577a8c48635e ]--- [ 26.168786][ T21] RIP: 0010:snd_usb_pipe_sanity_check+0x80/0x130 [ 26.175127][ T21] Code: 48 c1 ea 03 80 3c 02 00 0f 85 b3 00 00 00 48 8b 6d 00 c1 eb 1e 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 03 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 7b 48 b8 00 00 [ 26.194754][ T21] RSP: 0018:ffff8881da2f7010 EFLAGS: 00010246 [ 26.200809][ T21] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff8484d252 [ 26.208782][ T21] RDX: 0000000000000000 RSI: ffffffff8484d26c RDI: 0000000000000003 [ 26.216770][ T21] RBP: 0000000000000000 R08: ffff8881da22e000 R09: ffffed103b665d58 [ 26.224744][ T21] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: 0000000000000000 [ 26.232732][ T21] R13: ffff8881d400ba80 R14: 1ffff1103b45ee06 R15: ffff8881c79244a0 [ 26.240685][ T21] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 26.249627][ T21] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.256220][ T21] CR2: 00007f31b2a87000 CR3: 00000001d3fd4000 CR4: 00000000001406e0 [ 26.264209][ T21] Kernel panic - not syncing: Fatal exception [ 26.270316][ T21] Kernel Offset: disabled [ 26.274635][ T21] Rebooting in 86400 seconds..