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 '10.128.1.39' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.937001][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 36.176960][ T22] usb 1-1: Using ep0 maxpacket: 8 [ 36.297049][ T22] usb 1-1: config 0 has an invalid interface number: 97 but max is 0 [ 36.305829][ T22] usb 1-1: config 0 has an invalid descriptor of length 31, skipping remainder of the config [ 36.316128][ T22] usb 1-1: config 0 has no interface number 0 [ 36.322315][ T22] usb 1-1: New USB device found, idVendor=13d3, idProduct=3339, bcdDevice=7f.94 [ 36.331404][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 36.341311][ T22] usb 1-1: config 0 descriptor?? executing program [ 36.617097][ T22] usb 1-1: string descriptor 0 read error: -71 [ 36.626049][ T22] r8712u: register rtl8712_netdev_ops to netdev_ops [ 36.633784][ T22] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 36.677011][ T22] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 36.684672][ T22] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 36.693007][ T22] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 36.702417][ T22] usb 1-1: USB disconnect, device number 2 [ 36.725080][ T1721] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 36.734286][ T1721] usb 1-1: r8712u: Firmware request failed [ 36.740461][ T22] ------------[ cut here ]------------ [ 36.746069][ T22] WARNING: CPU: 1 PID: 22 at net/core/dev.c:8710 rollback_registered_many+0x1de/0xea0 [ 36.755811][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 36.762562][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc1-syzkaller #0 [ 36.770869][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.780924][ T22] Workqueue: usb_hub_wq hub_event [ 36.785957][ T22] Call Trace: [ 36.789267][ T22] dump_stack+0xef/0x16e [ 36.793688][ T22] ? rollback_registered_many+0x130/0xea0 [ 36.799500][ T22] panic+0x2aa/0x6e1 [ 36.803537][ T22] ? add_taint.cold+0x16/0x16 [ 36.808310][ T22] ? printk+0xba/0xed [ 36.812302][ T22] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 36.817753][ T22] ? __warn.cold+0x14/0x30 [ 36.822165][ T22] ? __warn+0xd5/0x1c8 [ 36.826225][ T22] ? rollback_registered_many+0x1de/0xea0 [ 36.832187][ T22] __warn.cold+0x2f/0x30 [ 36.836612][ T22] ? rollback_registered_many+0x1de/0xea0 [ 36.842823][ T22] report_bug+0x27b/0x2f0 [ 36.847369][ T22] do_error_trap+0x12b/0x1e0 [ 36.851964][ T22] ? rollback_registered_many+0x1de/0xea0 [ 36.857983][ T22] do_invalid_op+0x32/0x40 [ 36.863038][ T22] ? rollback_registered_many+0x1de/0xea0 [ 36.869986][ T22] invalid_op+0x23/0x30 [ 36.875129][ T22] RIP: 0010:rollback_registered_many+0x1de/0xea0 [ 36.881758][ T22] 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 [ 36.907812][ T22] RSP: 0018:ffff8881d8c37648 EFLAGS: 00010293 [ 36.914251][ T22] RAX: ffff8881da24e200 RBX: ffff8881cf640000 RCX: ffffffff84b7f5a0 [ 36.923188][ T22] RDX: 0000000000000000 RSI: ffffffff84b7f5ae RDI: 0000000000000001 [ 36.932774][ T22] RBP: ffff8881cf640068 R08: ffff8881da24e200 R09: fffffbfff0f2511d [ 36.940912][ T22] R10: fffffbfff0f2511c R11: ffffffff879288e7 R12: ffff8881d8c37798 [ 36.949042][ T22] R13: ffff8881d8c37730 R14: dffffc0000000000 R15: 0000000000000000 [ 36.958054][ T22] ? rollback_registered_many+0x1d0/0xea0 [ 36.963941][ T22] ? rollback_registered_many+0x1de/0xea0 [ 36.969653][ T22] ? rollback_registered_many+0x1de/0xea0 [ 36.975677][ T22] ? unregister_netdev+0xe/0x20 [ 36.980533][ T22] ? generic_xdp_install+0x490/0x490 [ 36.986214][ T22] ? __mutex_lock+0x42b/0x1360 [ 36.991265][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 36.996605][ T22] ? unregister_netdev+0xe/0x20 [ 37.001480][ T22] ? mark_held_locks+0x9f/0xe0 [ 37.006588][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 37.011794][ T22] ? mutex_trylock+0x2e0/0x2e0 [ 37.016635][ T22] rollback_registered+0xf2/0x1c0 [ 37.021746][ T22] ? rollback_registered_many+0xea0/0xea0 [ 37.027473][ T22] ? wait_for_completion_interruptible+0x420/0x420 [ 37.034352][ T22] ? wake_up_q+0x140/0x140 [ 37.039135][ T22] unregister_netdevice_queue+0x1d7/0x2b0 [ 37.046285][ T22] unregister_netdev+0x18/0x20 [ 37.051310][ T22] r871xu_dev_remove+0xe2/0x215 [ 37.056677][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 37.062502][ T22] ? usb_autoresume_device+0x60/0x60 [ 37.067814][ T22] device_release_driver_internal+0x42f/0x500 [ 37.074652][ T22] bus_remove_device+0x2dc/0x4a0 [ 37.079802][ T22] device_del+0x481/0xd30 [ 37.084152][ T22] ? device_create_with_groups+0x120/0x120 [ 37.090150][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 37.096265][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 37.102341][ T22] usb_disable_device+0x211/0x690 [ 37.107838][ T22] usb_disconnect+0x284/0x8d0 [ 37.112839][ T22] hub_event+0x1753/0x3860 [ 37.117535][ T22] ? hub_port_debounce+0x260/0x260 [ 37.122649][ T22] ? find_held_lock+0x2d/0x110 [ 37.127408][ T22] ? mark_held_locks+0xe0/0xe0 [ 37.132162][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 37.137939][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 37.143230][ T22] process_one_work+0x92b/0x1530 [ 37.148354][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 37.153727][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 37.158751][ T22] worker_thread+0x7ab/0xe20 [ 37.163451][ T22] ? process_one_work+0x1530/0x1530 [ 37.168659][ T22] kthread+0x318/0x420 [ 37.172741][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 37.179240][ T22] ret_from_fork+0x24/0x30 [ 37.184553][ T22] Kernel Offset: disabled [ 37.188917][ T22] Rebooting in 86400 seconds..