[info] Using makefile-style concurrent boot in runlevel 2. [ 15.608346][ C1] random: crng init done [....] 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 '10.128.10.2' (ECDSA) to the list of known hosts. syzkaller login: [ 41.987607][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 42.227584][ T22] usb 1-1: Using ep0 maxpacket: 32 [ 42.347693][ T22] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 42.356905][ T22] usb 1-1: config 0 has no interface number 0 [ 42.363075][ T22] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 42.372252][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.382671][ T22] usb 1-1: config 0 descriptor?? [ 42.637789][ T22] hso 1-1:0.15: Can't find BULK IN endpoint [ 42.643920][ T22] ------------[ cut here ]------------ [ 42.650454][ T22] WARNING: CPU: 1 PID: 22 at net/core/dev.c:8220 rollback_registered_many+0x1df/0xe00 [ 42.660730][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 42.667444][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc1+ #0 [ 42.675020][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.685291][ T22] Workqueue: usb_hub_wq hub_event [ 42.690320][ T22] Call Trace: [ 42.693894][ T22] dump_stack+0xca/0x13e [ 42.698336][ T22] ? rollback_registered_many+0x130/0xe00 [ 42.704054][ T22] panic+0x2a3/0x6da [ 42.708109][ T22] ? add_taint.cold+0x16/0x16 [ 42.713203][ T22] ? printk+0xba/0xed [ 42.717357][ T22] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 42.722819][ T22] ? __warn.cold+0x14/0x3a [ 42.727339][ T22] ? __warn+0xd5/0x1d0 [ 42.731595][ T22] ? rollback_registered_many+0x1df/0xe00 [ 42.737615][ T22] __warn.cold+0x2f/0x3a [ 42.741850][ T22] ? rollback_registered_many+0x1df/0xe00 [ 42.747563][ T22] report_bug+0x27b/0x2f0 [ 42.751902][ T22] do_error_trap+0x12b/0x1e0 [ 42.756484][ T22] ? rollback_registered_many+0x1df/0xe00 [ 42.762295][ T22] do_invalid_op+0x32/0x40 [ 42.766717][ T22] ? rollback_registered_many+0x1df/0xe00 [ 42.772763][ T22] invalid_op+0x23/0x30 [ 42.776920][ T22] RIP: 0010:rollback_registered_many+0x1df/0xe00 [ 42.783244][ 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 bf 5b 8c fc 45 84 ff 0f 85 49 ff ff ff e8 81 5a 8c fc <0f> 0b 4c 89 e7 e8 b7 a3 31 fd 31 ff 41 89 c4 89 c6 e8 9b 5b 8c fc [ 42.802847][ T22] RSP: 0018:ffff8881d968f078 EFLAGS: 00010293 [ 42.808921][ T22] RAX: ffff8881da236000 RBX: ffff8881d67aa200 RCX: ffffffff84b1c1a1 [ 42.816882][ T22] RDX: 0000000000000000 RSI: ffffffff84b1c1af RDI: 0000000000000001 [ 42.825248][ T22] RBP: ffff8881d968f1a8 R08: ffff8881da236000 R09: fffffbfff0ee93d9 [ 42.833298][ T22] R10: fffffbfff0ee93d8 R11: ffffffff87749ec7 R12: ffff8881d67aa270 [ 42.841289][ T22] R13: ffff8881d968f138 R14: dffffc0000000000 R15: 0000000000000000 [ 42.849392][ T22] ? rollback_registered_many+0x1d1/0xe00 [ 42.855304][ T22] ? rollback_registered_many+0x1df/0xe00 [ 42.861026][ T22] ? rollback_registered_many+0x1df/0xe00 [ 42.867027][ T22] ? generic_xdp_install+0x480/0x480 [ 42.872628][ T22] ? __mutex_lock+0x430/0x1360 [ 42.877388][ T22] ? find_held_lock+0x2d/0x110 [ 42.882138][ T22] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 42.887831][ T22] ? unregister_netdev+0xe/0x20 [ 42.892706][ T22] ? mutex_trylock+0x2c0/0x2c0 [ 42.897697][ T22] rollback_registered+0xf2/0x1c0 [ 42.902855][ T22] ? rollback_registered_many+0xe00/0xe00 [ 42.908569][ T22] ? _dev_crit+0x109/0x109 [ 42.913079][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 42.918371][ T22] unregister_netdevice_queue+0x1d7/0x2b0 [ 42.924260][ T22] unregister_netdev+0x18/0x20 [ 42.929028][ T22] hso_free_net_device+0xff/0x300 [ 42.934132][ T22] hso_create_net_device+0x76d/0x9c0 [ 42.939395][ T22] hso_probe+0x28d/0x1a46 [ 42.943808][ T22] usb_probe_interface+0x305/0x7a0 [ 42.949126][ T22] ? usb_probe_device+0x100/0x100 [ 42.954260][ T22] really_probe+0x281/0x6d0 [ 42.958772][ T22] driver_probe_device+0x104/0x210 [ 42.963884][ T22] __device_attach_driver+0x1c2/0x220 [ 42.969267][ T22] ? driver_allows_async_probing+0x160/0x160 [ 42.975239][ T22] bus_for_each_drv+0x162/0x1e0 [ 42.980106][ T22] ? bus_rescan_devices+0x20/0x20 [ 42.985136][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.990975][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 42.996352][ T22] __device_attach+0x217/0x360 [ 43.001478][ T22] ? device_bind_driver+0xd0/0xd0 [ 43.006507][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 43.011779][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 43.017097][ T22] bus_probe_device+0x1e4/0x290 [ 43.021967][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 43.027862][ T22] device_add+0xae6/0x16f0 [ 43.032278][ T22] ? uevent_store+0x50/0x50 [ 43.036773][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 43.042585][ T22] usb_set_configuration+0xdf6/0x1670 [ 43.048316][ T22] generic_probe+0x9d/0xd5 [ 43.052894][ T22] usb_probe_device+0x99/0x100 [ 43.057739][ T22] ? usb_suspend+0x620/0x620 [ 43.062580][ T22] really_probe+0x281/0x6d0 [ 43.067189][ T22] driver_probe_device+0x104/0x210 [ 43.072297][ T22] __device_attach_driver+0x1c2/0x220 [ 43.077754][ T22] ? driver_allows_async_probing+0x160/0x160 [ 43.083802][ T22] bus_for_each_drv+0x162/0x1e0 [ 43.088633][ T22] ? bus_rescan_devices+0x20/0x20 [ 43.093659][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 43.099687][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 43.105698][ T22] __device_attach+0x217/0x360 [ 43.110448][ T22] ? device_bind_driver+0xd0/0xd0 [ 43.115511][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 43.120886][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 43.126244][ T22] bus_probe_device+0x1e4/0x290 [ 43.131079][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 43.137152][ T22] device_add+0xae6/0x16f0 [ 43.141549][ T22] ? uevent_store+0x50/0x50 [ 43.146047][ T22] usb_new_device.cold+0x6a4/0xe79 [ 43.151149][ T22] hub_event+0x1b5c/0x3640 [ 43.155793][ T22] ? hub_port_debounce+0x260/0x260 [ 43.160904][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 43.166432][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 43.171717][ T22] process_one_work+0x92b/0x1530 [ 43.176697][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.182078][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 43.187089][ T22] worker_thread+0x96/0xe20 [ 43.191577][ T22] ? process_one_work+0x1530/0x1530 [ 43.196957][ T22] kthread+0x318/0x420 [ 43.201018][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 43.206499][ T22] ret_from_fork+0x24/0x30 [ 43.212275][ T22] Kernel Offset: disabled [ 43.216790][ T22] Rebooting in 86400 seconds..