[info] Using makefile-style concurrent boot in runlevel 2. [ 14.121789][ 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 '10.128.0.252' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.832537][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 24.042533][ T95] usb 1-1: config 0 has an invalid interface number: 97 but max is 0 [ 24.050738][ T95] usb 1-1: config 0 has no interface number 0 [ 24.057109][ T95] usb 1-1: New USB device found, idVendor=06f8, idProduct=e034, bcdDevice=3a.76 [ 24.066164][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.076125][ T95] usb 1-1: config 0 descriptor?? executing program [ 24.352911][ T95] usb 1-1: string descriptor 0 read error: -71 [ 24.361559][ T95] r8712u: register rtl8712_netdev_ops to netdev_ops [ 24.368386][ T95] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 24.423708][ T95] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 24.430357][ T95] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 24.437924][ T95] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 24.453714][ T95] usb 1-1: USB disconnect, device number 2 [ 24.466921][ T12] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 24.476100][ T12] usb 1-1: r8712u: Firmware request failed [ 24.482146][ T95] ------------[ cut here ]------------ [ 24.487689][ T95] WARNING: CPU: 0 PID: 95 at net/core/dev.c:8786 rollback_registered_many+0x1ed/0xec0 [ 24.497208][ T95] Kernel panic - not syncing: panic_on_warn set ... [ 24.503788][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc1-syzkaller #0 [ 24.511932][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.521988][ T95] Workqueue: usb_hub_wq hub_event [ 24.526988][ T95] Call Trace: [ 24.530267][ T95] dump_stack+0xef/0x16e [ 24.534508][ T95] ? rollback_registered_many+0x190/0xec0 [ 24.540238][ T95] panic+0x2aa/0x6e1 [ 24.544111][ T95] ? add_taint.cold+0x16/0x16 [ 24.548765][ T95] ? printk+0xba/0xed [ 24.552724][ T95] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 24.558161][ T95] ? __warn.cold+0x14/0x30 [ 24.562552][ T95] ? __warn+0xd5/0x1c8 [ 24.566610][ T95] ? rollback_registered_many+0x1ed/0xec0 [ 24.572318][ T95] __warn.cold+0x2f/0x30 [ 24.576539][ T95] ? rollback_registered_many+0x1ed/0xec0 [ 24.582256][ T95] report_bug+0x27b/0x2f0 [ 24.586583][ T95] do_error_trap+0x12b/0x1e0 [ 24.591157][ T95] ? rollback_registered_many+0x1ed/0xec0 [ 24.596982][ T95] do_invalid_op+0x32/0x40 [ 24.601385][ T95] ? rollback_registered_many+0x1ed/0xec0 [ 24.607140][ T95] invalid_op+0x23/0x30 [ 24.611318][ T95] RIP: 0010:rollback_registered_many+0x1ed/0xec0 [ 24.617676][ T95] Code: 05 00 00 31 ff 44 89 fe e8 10 38 7a fc 45 84 ff 0f 85 49 ff ff ff e8 d2 36 7a fc 0f 1f 44 00 00 e8 c8 36 7a fc e8 c3 36 7a fc <0f> 0b 48 89 ef e8 69 24 25 fd 31 ff 89 c5 89 c6 e8 de 37 7a fc 40 [ 24.637351][ T95] RSP: 0018:ffff8881d552f640 EFLAGS: 00010293 [ 24.643397][ T95] RAX: ffff8881d711c980 RBX: ffff8881cdcf0000 RCX: ffffffff84c52b40 [ 24.651355][ T95] RDX: 0000000000000000 RSI: ffffffff84c52b5d RDI: 0000000000000001 [ 24.659309][ T95] RBP: ffff8881cdcf0068 R08: ffff8881d711c980 R09: fffffbfff0f86f5d [ 24.667270][ T95] R10: fffffbfff0f86f5c R11: ffffffff87c37ae7 R12: ffff8881d552f788 [ 24.675238][ T95] R13: dffffc0000000000 R14: ffff8881d552f720 R15: 0000000000000000 [ 24.683222][ T95] ? rollback_registered_many+0x1d0/0xec0 [ 24.688916][ T95] ? rollback_registered_many+0x1ed/0xec0 [ 24.694615][ T95] ? unregister_netdev+0xe/0x20 [ 24.699464][ T95] ? netif_set_real_num_tx_queues+0x710/0x710 [ 24.705508][ T95] ? __mutex_lock+0x42b/0x1360 [ 24.710254][ T95] ? do_raw_spin_lock+0x129/0x290 [ 24.715258][ T95] ? unregister_netdev+0xe/0x20 [ 24.720088][ T95] ? mark_held_locks+0x9f/0xe0 [ 24.724831][ T95] ? _raw_spin_unlock_irq+0x1f/0x30 [ 24.730018][ T95] ? mutex_trylock+0x2c0/0x2c0 [ 24.734766][ T95] rollback_registered+0xf2/0x1c0 [ 24.739791][ T95] ? rollback_registered_many+0xec0/0xec0 [ 24.745536][ T95] ? wait_for_completion_interruptible+0x420/0x420 [ 24.752022][ T95] ? wake_up_q+0x140/0x140 [ 24.756419][ T95] unregister_netdevice_queue+0x1d7/0x2b0 [ 24.762116][ T95] unregister_netdev+0x18/0x20 [ 24.766872][ T95] r871xu_dev_remove+0xe2/0x215 [ 24.771703][ T95] usb_unbind_interface+0x1bd/0x8a0 [ 24.776889][ T95] ? __pm_runtime_idle+0xd1/0x310 [ 24.781891][ T95] ? usb_autoresume_device+0x60/0x60 [ 24.787177][ T95] device_release_driver_internal+0x42f/0x500 [ 24.793232][ T95] bus_remove_device+0x2eb/0x5a0 [ 24.798146][ T95] device_del+0x481/0xd30 [ 24.802463][ T95] ? mark_held_locks+0x9f/0xe0 [ 24.807205][ T95] ? device_create_with_groups+0x120/0x120 [ 24.812987][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 24.818264][ T95] ? remove_intf_ep_devs+0x13f/0x1d0 [ 24.823526][ T95] usb_disable_device+0x23d/0x790 [ 24.828527][ T95] usb_disconnect+0x293/0x900 [ 24.833183][ T95] hub_event+0x1a1d/0x4300 [ 24.837579][ T95] ? hub_port_debounce+0x350/0x350 [ 24.842667][ T95] ? find_held_lock+0x2d/0x110 [ 24.847410][ T95] ? mark_held_locks+0xe0/0xe0 [ 24.852149][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 24.857669][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 24.862943][ T95] process_one_work+0x94b/0x1620 [ 24.867870][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 24.873225][ T95] ? do_raw_spin_lock+0x129/0x290 [ 24.878232][ T95] worker_thread+0x7ab/0xe20 [ 24.882798][ T95] ? process_one_work+0x1620/0x1620 [ 24.888035][ T95] kthread+0x318/0x420 [ 24.892102][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 24.897479][ T95] ret_from_fork+0x24/0x30 [ 24.902652][ T95] Kernel Offset: disabled [ 24.907035][ T95] Rebooting in 86400 seconds..