INIT: Entering runlevel: 2 [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 '10.128.0.246' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 22.587114][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 22.826648][ T22] usb 1-1: Using ep0 maxpacket: 32 [ 22.946751][ T22] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 22.954909][ T22] usb 1-1: config 0 has no interface number 0 [ 22.961059][ T22] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 22.970127][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 22.979437][ T22] usb 1-1: config 0 descriptor?? [ 23.236872][ T22] hso 1-1:0.15: Can't find BULK IN endpoint [ 23.242993][ T22] ------------[ cut here ]------------ [ 23.248493][ T22] WARNING: CPU: 1 PID: 22 at net/core/dev.c:8488 rollback_registered_many+0x1df/0xe00 [ 23.258007][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 23.264569][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc6+ #0 [ 23.271909][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.281947][ T22] Workqueue: usb_hub_wq hub_event [ 23.286942][ T22] Call Trace: [ 23.290207][ T22] dump_stack+0xca/0x13e [ 23.294437][ T22] ? rollback_registered_many+0xf0/0xe00 [ 23.300054][ T22] panic+0x2aa/0x6e1 [ 23.303925][ T22] ? add_taint.cold+0x16/0x16 [ 23.308573][ T22] ? printk+0xba/0xed [ 23.312528][ T22] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 23.317962][ T22] ? __warn.cold+0x14/0x33 [ 23.322351][ T22] ? __warn+0xd5/0x1d0 [ 23.326394][ T22] ? rollback_registered_many+0x1df/0xe00 [ 23.332085][ T22] __warn.cold+0x2f/0x33 [ 23.336303][ T22] ? rollback_registered_many+0x1df/0xe00 [ 23.341994][ T22] report_bug+0x27b/0x2f0 [ 23.346298][ T22] do_error_trap+0x12b/0x1e0 [ 23.350863][ T22] ? rollback_registered_many+0x1df/0xe00 [ 23.356558][ T22] do_invalid_op+0x32/0x40 [ 23.360960][ T22] ? rollback_registered_many+0x1df/0xe00 [ 23.366652][ T22] invalid_op+0x23/0x30 [ 23.370783][ T22] RIP: 0010:rollback_registered_many+0x1df/0xe00 [ 23.377082][ T22] Code: 84 c0 74 06 0f 8e 39 0a 00 00 44 0f b6 bb 28 05 00 00 31 ff 44 89 fe e8 af 4d 8f fc 45 84 ff 0f 85 49 ff ff ff e8 71 4c 8f fc <0f> 0b 4c 89 e7 e8 b7 b6 34 fd 31 ff 41 89 c4 89 c6 e8 8b 4d 8f fc [ 23.396759][ T22] RSP: 0018:ffff8881d932f038 EFLAGS: 00010293 [ 23.402810][ T22] RAX: ffff8881da24e000 RBX: ffff8881d489e000 RCX: ffffffff84aed9e1 [ 23.411538][ T22] RDX: 0000000000000000 RSI: ffffffff84aed9ef RDI: 0000000000000001 [ 23.419483][ T22] RBP: ffff8881d932f168 R08: ffff8881da24e000 R09: fffffbfff0ee2b61 [ 23.427430][ T22] R10: fffffbfff0ee2b60 R11: ffffffff87715b07 R12: ffff8881d489e070 [ 23.435375][ T22] R13: ffff8881d932f0f8 R14: dffffc0000000000 R15: 0000000000000000 [ 23.443325][ T22] ? rollback_registered_many+0x1d1/0xe00 [ 23.449018][ T22] ? rollback_registered_many+0x1df/0xe00 [ 23.454715][ T22] ? rollback_registered_many+0x1df/0xe00 [ 23.460407][ T22] ? generic_xdp_install+0x480/0x480 [ 23.465665][ T22] ? __mutex_lock+0x430/0x1360 [ 23.470404][ T22] ? find_held_lock+0x2d/0x110 [ 23.475160][ T22] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 23.480767][ T22] ? unregister_netdev+0xe/0x20 [ 23.485601][ T22] ? mutex_trylock+0x2c0/0x2c0 [ 23.490339][ T22] rollback_registered+0xf2/0x1c0 [ 23.495338][ T22] ? rollback_registered_many+0xe00/0xe00 [ 23.501030][ T22] ? _dev_crit+0x109/0x109 [ 23.505422][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 23.510681][ T22] unregister_netdevice_queue+0x1d7/0x2b0 [ 23.516398][ T22] unregister_netdev+0x18/0x20 [ 23.521146][ T22] hso_free_net_device+0xff/0x300 [ 23.526145][ T22] hso_create_net_device+0x76d/0x9c0 [ 23.531400][ T22] hso_probe+0x28d/0x1b7b [ 23.535704][ T22] usb_probe_interface+0x305/0x7a0 [ 23.540802][ T22] ? usb_probe_device+0x100/0x100 [ 23.545800][ T22] really_probe+0x281/0x6d0 [ 23.550277][ T22] driver_probe_device+0x104/0x210 [ 23.555362][ T22] __device_attach_driver+0x1c2/0x220 [ 23.560710][ T22] ? driver_allows_async_probing+0x160/0x160 [ 23.566662][ T22] bus_for_each_drv+0x162/0x1e0 [ 23.571497][ T22] ? bus_rescan_devices+0x20/0x20 [ 23.576494][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 23.582282][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 23.587550][ T22] __device_attach+0x217/0x360 [ 23.592288][ T22] ? device_bind_driver+0xd0/0xd0 [ 23.597284][ T22] ? kobject_uevent_env+0x29e/0x1160 [ 23.602541][ T22] ? kobject_uevent_env+0x2a8/0x1160 [ 23.607800][ T22] bus_probe_device+0x1e4/0x290 [ 23.612626][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 23.618492][ T22] device_add+0xae6/0x16f0 [ 23.622881][ T22] ? uevent_store+0x50/0x50 [ 23.627359][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 23.633138][ T22] usb_set_configuration+0xdf6/0x1670 [ 23.638482][ T22] generic_probe+0x9d/0xd5 [ 23.642960][ T22] usb_probe_device+0x99/0x100 [ 23.647786][ T22] ? usb_suspend+0x620/0x620 [ 23.654778][ T22] really_probe+0x281/0x6d0 [ 23.659260][ T22] driver_probe_device+0x104/0x210 [ 23.664345][ T22] __device_attach_driver+0x1c2/0x220 [ 23.669702][ T22] ? driver_allows_async_probing+0x160/0x160 [ 23.675655][ T22] bus_for_each_drv+0x162/0x1e0 [ 23.680481][ T22] ? bus_rescan_devices+0x20/0x20 [ 23.685480][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 23.691259][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 23.696516][ T22] __device_attach+0x217/0x360 [ 23.701256][ T22] ? device_bind_driver+0xd0/0xd0 [ 23.706252][ T22] ? kobject_uevent_env+0x29e/0x1160 [ 23.711508][ T22] ? kobject_uevent_env+0x2a8/0x1160 [ 23.716764][ T22] bus_probe_device+0x1e4/0x290 [ 23.721681][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 23.727546][ T22] device_add+0xae6/0x16f0 [ 23.731934][ T22] ? uevent_store+0x50/0x50 [ 23.736409][ T22] usb_new_device.cold+0x6a4/0xe79 [ 23.741494][ T22] hub_event+0x1df8/0x3800 [ 23.745884][ T22] ? hub_port_debounce+0x260/0x260 [ 23.750966][ T22] ? find_held_lock+0x2d/0x110 [ 23.755703][ T22] ? mark_held_locks+0xe0/0xe0 [ 23.760441][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 23.765960][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 23.771218][ T22] process_one_work+0x92b/0x1530 [ 23.776127][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 23.781473][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 23.786478][ T22] worker_thread+0x96/0xe20 [ 23.790956][ T22] ? process_one_work+0x1530/0x1530 [ 23.796127][ T22] kthread+0x318/0x420 [ 23.800168][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 23.805510][ T22] ret_from_fork+0x24/0x30 [ 23.810639][ T22] Kernel Offset: disabled [ 23.815007][ T22] Rebooting in 86400 seconds..