[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 14.540031][ C1] random: crng init done [....] 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 '10.128.1.37' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.023727][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 36.263682][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 36.383746][ T12] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 36.391926][ T12] usb 1-1: config 0 has no interface number 0 [ 36.398157][ T12] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 36.407305][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 36.416864][ T12] usb 1-1: config 0 descriptor?? [ 36.673899][ T12] hso 1-1:0.15: Can't find BULK IN endpoint [ 36.679916][ T12] ------------[ cut here ]------------ [ 36.685635][ T12] WARNING: CPU: 0 PID: 12 at net/core/dev.c:8220 rollback_registered_many.cold+0x41/0x1bc [ 36.695513][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 36.702080][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0+ #0 [ 36.709083][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.719120][ T12] Workqueue: usb_hub_wq hub_event [ 36.724122][ T12] Call Trace: [ 36.727427][ T12] dump_stack+0xca/0x13e [ 36.731669][ T12] ? dev_change_tx_queue_len.cold+0x4/0x54 [ 36.737449][ T12] panic+0x2a3/0x6da [ 36.741318][ T12] ? add_taint.cold+0x16/0x16 [ 36.745969][ T12] ? __probe_kernel_read+0x188/0x1d0 [ 36.751225][ T12] ? __warn.cold+0x5/0x4a [ 36.755528][ T12] ? __warn+0xe3/0x1e0 [ 36.759573][ T12] ? rollback_registered_many.cold+0x41/0x1bc [ 36.765610][ T12] __warn.cold+0x20/0x4a [ 36.769851][ T12] ? rollback_registered_many.cold+0x41/0x1bc [ 36.775891][ T12] report_bug+0x262/0x2a0 [ 36.780195][ T12] do_error_trap+0x12b/0x1e0 [ 36.784761][ T12] ? rollback_registered_many.cold+0x41/0x1bc [ 36.790801][ T12] do_invalid_op+0x32/0x40 [ 36.795193][ T12] ? rollback_registered_many.cold+0x41/0x1bc [ 36.801234][ T12] invalid_op+0x23/0x30 [ 36.805365][ T12] RIP: 0010:rollback_registered_many.cold+0x41/0x1bc [ 36.812015][ T12] Code: ff e8 49 f5 8d fc 48 c7 c7 00 64 64 86 e8 16 7f 78 fc 0f 0b e9 95 be ff ff e8 31 f5 8d fc 48 c7 c7 00 64 64 86 e8 fe 7e 78 fc <0f> 0b 4c 89 e7 e8 3b 50 32 fd 31 ff 41 89 c4 89 c6 e8 3f f6 8d fc [ 36.831606][ T12] RSP: 0018:ffff8881da20f088 EFLAGS: 00010282 [ 36.837645][ T12] RAX: 0000000000000024 RBX: ffff8881d28da200 RCX: 0000000000000000 [ 36.845593][ T12] RDX: 0000000000000000 RSI: ffffffff8128d9ad RDI: ffffed103b441e03 [ 36.853545][ T12] RBP: ffff8881da20f1b8 R08: 0000000000000024 R09: fffffbfff11b35a8 [ 36.861493][ T12] R10: fffffbfff11b35a7 R11: ffffffff88d9ad3f R12: ffff8881d28da270 [ 36.869437][ T12] R13: ffff8881da20f148 R14: dffffc0000000000 R15: 0000000000000000 [ 36.877391][ T12] ? vprintk_func+0x7d/0x113 [ 36.881968][ T12] ? rollback_registered_many.cold+0x41/0x1bc [ 36.888009][ T12] ? generic_xdp_install+0x480/0x480 [ 36.893266][ T12] ? __mutex_lock+0x430/0x1360 [ 36.898005][ T12] ? find_held_lock+0x2d/0x110 [ 36.902743][ T12] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 36.908347][ T12] ? unregister_netdev+0xe/0x20 [ 36.913172][ T12] ? mutex_trylock+0x2c0/0x2c0 [ 36.917921][ T12] rollback_registered+0xf2/0x1c0 [ 36.922920][ T12] ? rollback_registered_many+0xc70/0xc70 [ 36.928614][ T12] ? _dev_crit+0x109/0x109 [ 36.933006][ T12] ? kasan_unpoison_shadow+0x30/0x40 [ 36.938265][ T12] unregister_netdevice_queue+0x1d7/0x2b0 [ 36.944043][ T12] unregister_netdev+0x18/0x20 [ 36.948782][ T12] hso_free_net_device+0xff/0x300 [ 36.953867][ T12] hso_create_net_device+0x76d/0x9c0 [ 36.959135][ T12] hso_probe+0x28d/0x1a46 [ 36.963441][ T12] usb_probe_interface+0x305/0x7a0 [ 36.968528][ T12] ? usb_probe_device+0x100/0x100 [ 36.973527][ T12] really_probe+0x281/0x6d0 [ 36.978005][ T12] driver_probe_device+0x101/0x1b0 [ 36.983090][ T12] __device_attach_driver+0x1c2/0x220 [ 36.988438][ T12] ? driver_allows_async_probing+0x160/0x160 [ 36.994390][ T12] bus_for_each_drv+0x162/0x1e0 [ 36.999216][ T12] ? bus_rescan_devices+0x20/0x20 [ 37.004217][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 37.009998][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 37.015256][ T12] __device_attach+0x217/0x360 [ 37.020009][ T12] ? device_bind_driver+0xd0/0xd0 [ 37.025011][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 37.030297][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 37.035586][ T12] bus_probe_device+0x1e4/0x290 [ 37.040424][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 37.046305][ T12] device_add+0xae6/0x16f0 [ 37.050705][ T12] ? uevent_store+0x50/0x50 [ 37.055188][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 37.060992][ T12] usb_set_configuration+0xdf6/0x1670 [ 37.066343][ T12] generic_probe+0x9d/0xd5 [ 37.070763][ T12] usb_probe_device+0x99/0x100 [ 37.075514][ T12] ? usb_suspend+0x620/0x620 [ 37.080140][ T12] really_probe+0x281/0x6d0 [ 37.084673][ T12] driver_probe_device+0x101/0x1b0 [ 37.089765][ T12] __device_attach_driver+0x1c2/0x220 [ 37.095162][ T12] ? driver_allows_async_probing+0x160/0x160 [ 37.101128][ T12] bus_for_each_drv+0x162/0x1e0 [ 37.105954][ T12] ? bus_rescan_devices+0x20/0x20 [ 37.110953][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 37.116732][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 37.121990][ T12] __device_attach+0x217/0x360 [ 37.126738][ T12] ? device_bind_driver+0xd0/0xd0 [ 37.131750][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 37.137007][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 37.142276][ T12] bus_probe_device+0x1e4/0x290 [ 37.147103][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 37.152968][ T12] device_add+0xae6/0x16f0 [ 37.157361][ T12] ? uevent_store+0x50/0x50 [ 37.161849][ T12] usb_new_device.cold+0x6a4/0xe79 [ 37.166931][ T12] hub_event+0x1b5c/0x3640 [ 37.171324][ T12] ? hub_port_debounce+0x260/0x260 [ 37.176408][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 37.181928][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 37.187187][ T12] process_one_work+0x92b/0x1530 [ 37.192098][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 37.197443][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 37.202440][ T12] worker_thread+0x96/0xe20 [ 37.206917][ T12] ? process_one_work+0x1530/0x1530 [ 37.212088][ T12] kthread+0x318/0x420 [ 37.216132][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 37.221479][ T12] ret_from_fork+0x24/0x30 [ 37.226791][ T12] Kernel Offset: disabled [ 37.231186][ T12] Rebooting in 86400 seconds..