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 '10.128.0.12' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.657022][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 33.897042][ T17] usb 1-1: Using ep0 maxpacket: 8 [ 34.017161][ T17] usb 1-1: New USB device found, idVendor=050d, idProduct=11f1, bcdDevice=11.3f [ 34.027153][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 34.036987][ T17] usb 1-1: config 0 descriptor?? executing program [ 34.317183][ T17] usb 1-1: string descriptor 0 read error: -71 [ 34.326134][ T17] r8712u: register rtl8712_netdev_ops to netdev_ops [ 34.332961][ T17] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 34.377052][ T17] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 34.383975][ T17] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 34.391527][ T17] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 34.401047][ T17] usb 1-1: USB disconnect, device number 2 [ 34.428862][ T1718] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 34.438211][ T1718] usb 1-1: r8712u: Firmware request failed [ 34.444340][ T17] ------------[ cut here ]------------ [ 34.450084][ T17] WARNING: CPU: 1 PID: 17 at net/core/dev.c:8710 rollback_registered_many+0x1de/0xea0 [ 34.459774][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 34.466521][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.5.0-rc1-syzkaller #0 [ 34.474757][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.485496][ T17] Workqueue: usb_hub_wq hub_event [ 34.490517][ T17] Call Trace: [ 34.493902][ T17] dump_stack+0xef/0x16e [ 34.498139][ T17] ? rollback_registered_many+0x130/0xea0 [ 34.503843][ T17] panic+0x2aa/0x6e1 [ 34.507737][ T17] ? add_taint.cold+0x16/0x16 [ 34.512401][ T17] ? printk+0xba/0xed [ 34.516550][ T17] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 34.522246][ T17] ? __warn.cold+0x14/0x30 [ 34.526659][ T17] ? __warn+0xd5/0x1c8 [ 34.530739][ T17] ? rollback_registered_many+0x1de/0xea0 [ 34.536560][ T17] __warn.cold+0x2f/0x30 [ 34.541006][ T17] ? rollback_registered_many+0x1de/0xea0 [ 34.547157][ T17] report_bug+0x27b/0x2f0 [ 34.551732][ T17] do_error_trap+0x12b/0x1e0 [ 34.556333][ T17] ? rollback_registered_many+0x1de/0xea0 [ 34.562125][ T17] do_invalid_op+0x32/0x40 [ 34.566534][ T17] ? rollback_registered_many+0x1de/0xea0 [ 34.572261][ T17] invalid_op+0x23/0x30 [ 34.576418][ T17] RIP: 0010:rollback_registered_many+0x1de/0xea0 [ 34.583000][ T17] Code: 84 c0 74 06 0f 8e c1 0a 00 00 44 0f b6 bb 28 05 00 00 31 ff 44 89 fe e8 90 0b 87 fc 45 84 ff 0f 85 49 ff ff ff e8 22 0a 87 fc <0f> 0b 48 89 ef e8 18 57 30 fd 31 ff 89 c5 89 c6 e8 6d 0b 87 fc 40 [ 34.603298][ T17] RSP: 0018:ffff8881da267648 EFLAGS: 00010293 [ 34.609444][ T17] RAX: ffff8881da24b100 RBX: ffff8881cf500000 RCX: ffffffff84b7f5a0 [ 34.617427][ T17] RDX: 0000000000000000 RSI: ffffffff84b7f5ae RDI: 0000000000000001 [ 34.626244][ T17] RBP: ffff8881cf500068 R08: ffff8881da24b100 R09: fffffbfff0f2511d [ 34.634239][ T17] R10: fffffbfff0f2511c R11: ffffffff879288e7 R12: ffff8881da267798 [ 34.642318][ T17] R13: ffff8881da267730 R14: dffffc0000000000 R15: 0000000000000000 [ 34.650304][ T17] ? rollback_registered_many+0x1d0/0xea0 [ 34.656015][ T17] ? rollback_registered_many+0x1de/0xea0 [ 34.661752][ T17] ? rollback_registered_many+0x1de/0xea0 [ 34.667465][ T17] ? unregister_netdev+0xe/0x20 [ 34.672302][ T17] ? generic_xdp_install+0x490/0x490 [ 34.677946][ T17] ? __mutex_lock+0x42b/0x1360 [ 34.682703][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 34.688201][ T17] ? unregister_netdev+0xe/0x20 [ 34.693049][ T17] ? mark_held_locks+0x9f/0xe0 [ 34.697978][ T17] ? _raw_spin_unlock_irq+0x1f/0x30 [ 34.703173][ T17] ? mutex_trylock+0x2e0/0x2e0 [ 34.707958][ T17] rollback_registered+0xf2/0x1c0 [ 34.712985][ T17] ? rollback_registered_many+0xea0/0xea0 [ 34.718876][ T17] ? wait_for_completion_interruptible+0x420/0x420 [ 34.725406][ T17] ? wake_up_q+0x140/0x140 [ 34.729815][ T17] unregister_netdevice_queue+0x1d7/0x2b0 [ 34.735627][ T17] unregister_netdev+0x18/0x20 [ 34.740377][ T17] r871xu_dev_remove+0xe2/0x215 [ 34.745215][ T17] usb_unbind_interface+0x1bd/0x8a0 [ 34.750404][ T17] ? usb_autoresume_device+0x60/0x60 [ 34.755685][ T17] device_release_driver_internal+0x42f/0x500 [ 34.761831][ T17] bus_remove_device+0x2dc/0x4a0 [ 34.766792][ T17] device_del+0x481/0xd30 [ 34.771109][ T17] ? device_create_with_groups+0x120/0x120 [ 34.776900][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 34.782536][ T17] ? remove_intf_ep_devs+0x13f/0x1d0 [ 34.787818][ T17] usb_disable_device+0x211/0x690 [ 34.792974][ T17] usb_disconnect+0x284/0x8d0 [ 34.797642][ T17] hub_event+0x1753/0x3860 [ 34.802099][ T17] ? hub_port_debounce+0x260/0x260 [ 34.807210][ T17] ? find_held_lock+0x2d/0x110 [ 34.811985][ T17] ? mark_held_locks+0xe0/0xe0 [ 34.816735][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 34.825241][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 34.830523][ T17] process_one_work+0x92b/0x1530 [ 34.835450][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 34.840821][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 34.845829][ T17] worker_thread+0x7ab/0xe20 [ 34.850444][ T17] ? process_one_work+0x1530/0x1530 [ 34.855648][ T17] kthread+0x318/0x420 [ 34.862697][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 34.868175][ T17] ret_from_fork+0x24/0x30 [ 34.873499][ T17] Kernel Offset: disabled [ 34.877865][ T17] Rebooting in 86400 seconds..