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 '10.128.1.20' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 41.804115][ T21] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 41.804122][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 41.819230][ T1737] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 41.826853][ T17] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 41.834360][ T1736] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 41.841870][ T1735] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 42.054237][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 42.074068][ T1736] usb 4-1: Using ep0 maxpacket: 8 [ 42.084092][ T21] usb 6-1: Using ep0 maxpacket: 8 [ 42.089255][ T1735] usb 3-1: Using ep0 maxpacket: 8 [ 42.094398][ T1737] usb 5-1: Using ep0 maxpacket: 8 [ 42.099467][ T17] usb 2-1: Using ep0 maxpacket: 8 [ 42.174153][ T12] usb 1-1: config 0 has an invalid interface number: 76 but max is 0 [ 42.182375][ T12] usb 1-1: config 0 has no interface number 0 [ 42.188632][ T12] usb 1-1: New USB device found, idVendor=13d3, idProduct=3336, bcdDevice=4d.6c [ 42.194168][ T1736] usb 4-1: config 0 has an invalid interface number: 76 but max is 0 [ 42.197676][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.198889][ T12] usb 1-1: config 0 descriptor?? [ 42.205914][ T1736] usb 4-1: config 0 has no interface number 0 [ 42.225310][ T21] usb 6-1: config 0 has an invalid interface number: 76 but max is 0 [ 42.233376][ T21] usb 6-1: config 0 has no interface number 0 [ 42.239521][ T1735] usb 3-1: config 0 has an invalid interface number: 76 but max is 0 [ 42.247649][ T1735] usb 3-1: config 0 has no interface number 0 [ 42.253864][ T1737] usb 5-1: config 0 has an invalid interface number: 76 but max is 0 [ 42.259078][ T12] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.261977][ T1737] usb 5-1: config 0 has no interface number 0 [ 42.268586][ T12] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 42.274686][ T17] usb 2-1: config 0 has an invalid interface number: 76 but max is 0 [ 42.289241][ T17] usb 2-1: config 0 has no interface number 0 [ 42.295379][ T21] usb 6-1: New USB device found, idVendor=13d3, idProduct=3336, bcdDevice=4d.6c [ 42.304438][ T21] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.312432][ T1735] usb 3-1: New USB device found, idVendor=13d3, idProduct=3336, bcdDevice=4d.6c [ 42.321495][ T1735] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.329565][ T1737] usb 5-1: New USB device found, idVendor=13d3, idProduct=3336, bcdDevice=4d.6c [ 42.338814][ T1737] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.346861][ T17] usb 2-1: New USB device found, idVendor=13d3, idProduct=3336, bcdDevice=4d.6c [ 42.355916][ T17] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.364575][ T1736] usb 4-1: New USB device found, idVendor=13d3, idProduct=3336, bcdDevice=4d.6c [ 42.373609][ T1736] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.382376][ T21] usb 6-1: config 0 descriptor?? [ 42.388064][ T1735] usb 3-1: config 0 descriptor?? [ 42.394051][ T1737] usb 5-1: config 0 descriptor?? [ 42.395861][ T12] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 42.399374][ T17] usb 2-1: config 0 descriptor?? [ 42.405692][ T12] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 executing program [ 42.405704][ T12] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 42.427657][ T21] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.434397][ T21] usb 6-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 42.436796][ T107] usb 1-1: USB disconnect, device number 2 [ 42.442790][ T1735] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.453455][ T1735] usb 3-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 42.462069][ T1737] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.468751][ T1737] usb 5-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 42.475895][ T12] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 42.485289][ T1736] usb 4-1: config 0 descriptor?? [ 42.495022][ T12] usb 1-1: r8712u: Firmware request failed [ 42.501120][ T107] WARNING: CPU: 0 PID: 107 at net/core/dev.c:8172 rollback_registered_many+0x1df/0xe00 [ 42.510816][ T107] Kernel panic - not syncing: panic_on_warn set ... [ 42.517507][ T107] CPU: 0 PID: 107 Comm: kworker/0:2 Not tainted 5.2.0-rc6+ #13 [ 42.525037][ T107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.525968][ T1736] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.535098][ T107] Workqueue: usb_hub_wq hub_event [ 42.535119][ T107] Call Trace: [ 42.535134][ T107] dump_stack+0xca/0x13e [ 42.535151][ T107] ? rollback_registered_many+0x180/0xe00 [ 42.541724][ T1736] usb 4-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 42.546717][ T107] panic+0x292/0x6c9 [ 42.546726][ T107] ? __warn_printk+0xf3/0xf3 [ 42.546735][ T107] ? rollback_registered_many+0x1df/0xe00 [ 42.546747][ T107] ? __probe_kernel_read+0x16c/0x1b0 [ 42.546755][ T107] ? __warn.cold+0x5/0x4b [ 42.546763][ T107] ? __warn+0xe4/0x1c0 [ 42.546772][ T107] ? rollback_registered_many+0x1df/0xe00 [ 42.546781][ T107] __warn.cold+0x20/0x4b [ 42.546790][ T107] ? rollback_registered_many+0x1df/0xe00 [ 42.546806][ T107] report_bug+0x262/0x2a0 [ 42.552403][ T17] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.554291][ T107] do_error_trap+0x12b/0x1e0 [ 42.554303][ T107] ? rollback_registered_many+0x1df/0xe00 [ 42.554311][ T107] do_invalid_op+0x32/0x40 [ 42.554325][ T107] ? rollback_registered_many+0x1df/0xe00 [ 42.560025][ T17] usb 2-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 42.566498][ T107] invalid_op+0x14/0x20 [ 42.566510][ T107] RIP: 0010:rollback_registered_many+0x1df/0xe00 [ 42.566521][ T107] 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 8f 11 8b fc 45 84 ff 0f 85 49 ff ff ff e8 51 10 8b fc <0f> 0b 4c 89 e7 e8 57 02 2d fd 31 ff 41 89 c4 89 c6 e8 6b 11 8b fc [ 42.566527][ T107] RSP: 0018:ffff8881d428f6a8 EFLAGS: 00010293 [ 42.566536][ T107] RAX: ffff8881d7af9800 RBX: ffff8881cf4e8000 RCX: ffffffff84b1cb51 [ 42.566541][ T107] RDX: 0000000000000000 RSI: ffffffff84b1cb5f RDI: 0000000000000001 [ 42.566547][ T107] RBP: ffff8881d428f7d8 R08: ffff8881d7af9800 R09: fffffbfff0f2f0bd [ 42.566554][ T107] R10: fffffbfff0f2f0bc R11: ffffffff879785e7 R12: ffff8881cf4e8070 [ 42.566560][ T107] R13: ffff8881d428f768 R14: dffffc0000000000 R15: 0000000000000000 [ 42.566571][ T107] ? rollback_registered_many+0x1d1/0xe00 [ 42.566580][ T107] ? rollback_registered_many+0x1df/0xe00 [ 42.566590][ T107] ? rollback_registered_many+0x1df/0xe00 [ 42.566604][ T107] ? generic_xdp_install+0x480/0x480 [ 42.584699][ T1735] usb 3-1: r8712u: Boot from EFUSE: Autoload Failed [ 42.586017][ T107] ? __mutex_lock+0x3a2/0x12b0 [ 42.590326][ T1735] usb 3-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 42.594362][ T107] ? unregister_netdev+0xe/0x20 [ 42.594373][ T107] ? mark_held_locks+0x9f/0xe0 [ 42.594383][ T107] ? _raw_spin_unlock_irq+0x24/0x30 [ 42.594393][ T107] ? mutex_trylock+0x1a0/0x1a0 [ 42.594402][ T107] rollback_registered+0xf2/0x1c0 [ 42.594416][ T107] ? rollback_registered_many+0xe00/0xe00 [ 42.600105][ T1735] usb 3-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 42.604319][ T107] ? wait_for_completion_interruptible+0x410/0x410 [ 42.604328][ T107] ? wake_up_q+0xf0/0xf0 [ 42.604339][ T107] unregister_netdevice_queue+0x1d7/0x2b0 [ 42.604348][ T107] unregister_netdev+0x18/0x20 [ 42.604359][ T107] r871xu_dev_remove+0xe2/0x215 [ 42.604370][ T107] usb_unbind_interface+0x1bd/0x8a0 [ 42.604380][ T107] ? usb_autoresume_device+0x60/0x60 [ 42.604393][ T107] device_release_driver_internal+0x404/0x4c0 [ 42.604403][ T107] bus_remove_device+0x2dc/0x4a0 [ 42.604413][ T107] device_del+0x460/0xb80 [ 42.604424][ T107] ? __device_links_no_driver+0x240/0x240 [ 42.604434][ T107] ? lockdep_hardirqs_on+0x379/0x580 [ 42.604444][ T107] ? remove_intf_ep_devs+0x13f/0x1d0 [ 42.604453][ T107] usb_disable_device+0x211/0x690 [ 42.604468][ T107] usb_disconnect+0x284/0x830 [ 42.610498][ T1737] usb 5-1: r8712u: Boot from EFUSE: Autoload Failed [ 42.614458][ T107] hub_event+0x1409/0x3590 [ 42.614470][ T107] ? hub_port_debounce+0x260/0x260 [ 42.614482][ T107] process_one_work+0x905/0x1570 [ 42.614497][ T107] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.621052][ T1737] usb 5-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 42.625612][ T107] ? do_raw_spin_lock+0x11a/0x280 [ 42.625624][ T107] worker_thread+0x96/0xe20 [ 42.625636][ T107] ? process_one_work+0x1570/0x1570 [ 42.625647][ T107] kthread+0x30b/0x410 [ 42.625656][ T107] ? kthread_park+0x1a0/0x1a0 [ 42.625665][ T107] ret_from_fork+0x24/0x30 [ 42.631989][ T107] Kernel Offset: disabled [ 42.955556][ T107] Rebooting in 86400 seconds..