[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 15.582894][ C1] random: crng init done [ 15.587207][ C1] random: 7 urandom warning(s) missed due to ratelimiting Warning: Permanently added '10.128.10.46' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 24.477151][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 24.477159][ T12] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 24.497551][ T168] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 24.507141][ T140] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 24.514843][ T5] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 24.522385][ T374] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 24.716857][ T17] usb 1-1: Using ep0 maxpacket: 16 [ 24.727363][ T12] usb 5-1: Using ep0 maxpacket: 16 [ 24.737203][ T168] usb 4-1: Using ep0 maxpacket: 16 [ 24.777548][ T374] usb 6-1: Using ep0 maxpacket: 16 [ 24.782736][ T140] usb 2-1: Using ep0 maxpacket: 16 [ 24.788814][ T5] usb 3-1: Using ep0 maxpacket: 16 [ 24.846866][ T17] usb 1-1: New USB device found, idVendor=177f, idProduct=0154, bcdDevice=1a.63 [ 24.847162][ T12] usb 5-1: New USB device found, idVendor=177f, idProduct=0154, bcdDevice=1a.63 [ 24.856016][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.865105][ T12] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.874980][ T168] usb 4-1: New USB device found, idVendor=177f, idProduct=0154, bcdDevice=1a.63 [ 24.883797][ T12] usb 5-1: config 0 descriptor?? [ 24.890209][ T168] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.901785][ T168] usb 4-1: config 0 descriptor?? [ 24.910860][ T17] usb 1-1: config 0 descriptor?? [ 24.916970][ T5] usb 3-1: New USB device found, idVendor=177f, idProduct=0154, bcdDevice=1a.63 [ 24.926037][ T5] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.936678][ T374] usb 6-1: New USB device found, idVendor=177f, idProduct=0154, bcdDevice=1a.63 [ 24.945702][ T374] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.953818][ T140] usb 2-1: New USB device found, idVendor=177f, idProduct=0154, bcdDevice=1a.63 [ 24.963028][ T140] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.969767][ T168] r8712u: register rtl8712_netdev_ops to netdev_ops [ 24.973130][ T12] r8712u: register rtl8712_netdev_ops to netdev_ops [ 24.977793][ T168] usb 4-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 24.984342][ T12] usb 5-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 24.996230][ T17] r8712u: register rtl8712_netdev_ops to netdev_ops [ 25.001905][ T140] usb 2-1: config 0 descriptor?? [ 25.003961][ T17] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 25.016286][ T374] usb 6-1: config 0 descriptor?? [ 25.022134][ T5] usb 3-1: config 0 descriptor?? [ 25.068928][ T374] r8712u: register rtl8712_netdev_ops to netdev_ops [ 25.075556][ T374] usb 6-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 25.084502][ T5] r8712u: register rtl8712_netdev_ops to netdev_ops [ 25.091181][ T5] usb 3-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 25.100111][ T140] r8712u: register rtl8712_netdev_ops to netdev_ops [ 25.106783][ T140] usb 2-1: r8712u: USB_SPEED_HIGH with 0 endpoints executing program [ 25.116657][ T17] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 25.123320][ T17] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 25.126506][ T12] usb 5-1: r8712u: Boot from EFUSE: Autoload Failed [ 25.130995][ T17] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 25.137485][ T12] usb 5-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 25.152629][ T12] usb 5-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 25.163253][ T12] usb 5-1: USB disconnect, device number 2 executing program executing program [ 25.167703][ T168] usb 4-1: r8712u: Boot from EFUSE: Autoload Failed [ 25.175653][ T168] usb 4-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 25.183180][ T168] usb 4-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 25.206518][ T374] usb 6-1: r8712u: Boot from EFUSE: Autoload Failed [ 25.211557][ T17] usb 1-1: USB disconnect, device number 2 [ 25.213199][ T374] usb 6-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 25.226488][ T374] usb 6-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 25.230535][ T168] usb 4-1: USB disconnect, device number 2 [ 25.234405][ T5] usb 3-1: r8712u: Boot from EFUSE: Autoload Failed [ 25.246927][ T5] usb 3-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 25.254362][ T5] usb 3-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" executing program executing program executing program [ 25.262095][ T140] usb 2-1: r8712u: Boot from EFUSE: Autoload Failed [ 25.272660][ T140] usb 2-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 25.280184][ T140] usb 2-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 25.288557][ T379] usb 5-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 25.297734][ T379] usb 5-1: r8712u: Firmware request failed [ 25.300141][ T22] usb 1-1: r8712u: Firmware request failed [ 25.304224][ T12] ------------[ cut here ]------------ [ 25.309539][ T83] usb 4-1: r8712u: Firmware request failed [ 25.314865][ T12] WARNING: CPU: 0 PID: 12 at net/core/dev.c:8794 rollback_registered_many+0x1ed/0xec0 [ 25.330176][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 25.336757][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.7.0-rc6-syzkaller #0 [ 25.344895][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.354935][ T12] Workqueue: usb_hub_wq hub_event [ 25.359939][ T12] Call Trace: [ 25.363228][ T12] dump_stack+0xef/0x16e [ 25.367476][ T12] ? rollback_registered_many+0x130/0xec0 [ 25.373194][ T12] panic+0x2aa/0x6e1 [ 25.377087][ T12] ? add_taint.cold+0x16/0x16 [ 25.381764][ T12] ? printk+0xba/0xed [ 25.385744][ T12] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 25.391193][ T12] ? __warn.cold+0x14/0x30 [ 25.395601][ T12] ? __warn+0xd5/0x1c8 [ 25.399706][ T12] ? rollback_registered_many+0x1ed/0xec0 [ 25.405407][ T12] __warn.cold+0x2f/0x30 [ 25.409671][ T12] ? rollback_registered_many+0x1ed/0xec0 [ 25.415369][ T12] report_bug+0x27b/0x2f0 [ 25.419687][ T12] do_error_trap+0x12b/0x1e0 [ 25.424254][ T12] ? rollback_registered_many+0x1ed/0xec0 [ 25.429993][ T12] do_invalid_op+0x32/0x40 [ 25.434387][ T12] ? rollback_registered_many+0x1ed/0xec0 [ 25.440107][ T12] invalid_op+0x23/0x30 [ 25.444239][ T12] RIP: 0010:rollback_registered_many+0x1ed/0xec0 [ 25.450541][ T12] Code: 05 00 00 31 ff 44 89 fe e8 a0 96 70 fc 45 84 ff 0f 85 49 ff ff ff e8 62 95 70 fc 0f 1f 44 00 00 e8 58 95 70 fc e8 53 95 70 fc <0f> 0b 48 89 ef e8 e9 d9 1c fd 31 ff 89 c5 89 c6 e8 6e 96 70 fc 40 [ 25.470134][ T12] RSP: 0018:ffff8881da21f620 EFLAGS: 00010293 [ 25.476192][ T12] RAX: ffff8881da2098c0 RBX: ffff8881ccbc0000 RCX: ffffffff84cfa9a0 [ 25.484141][ T12] RDX: 0000000000000000 RSI: ffffffff84cfa9bd RDI: 0000000000000001 [ 25.492185][ T12] RBP: ffff8881ccbc0068 R08: ffff8881da2098c0 R09: fffffbfff0f8c361 [ 25.500134][ T12] R10: ffffffff87c61b07 R11: fffffbfff0f8c360 R12: ffff8881da21f768 [ 25.508082][ T12] R13: dffffc0000000000 R14: ffff8881da21f700 R15: 0000000000000000 [ 25.516042][ T12] ? rollback_registered_many+0x1d0/0xec0 [ 25.521740][ T12] ? rollback_registered_many+0x1ed/0xec0 [ 25.527439][ T12] ? find_held_lock+0x2d/0x110 [ 25.532189][ T12] ? netif_set_real_num_tx_queues+0x710/0x710 [ 25.538261][ T12] ? __mutex_lock+0x42b/0x1360 [ 25.543016][ T12] ? lock_downgrade+0x720/0x720 [ 25.547845][ T12] ? unregister_netdev+0xe/0x20 [ 25.552680][ T12] ? mark_held_locks+0x9f/0xe0 [ 25.557467][ T12] ? mutex_trylock+0x2c0/0x2c0 [ 25.562225][ T12] rollback_registered+0xf2/0x1c0 [ 25.567228][ T12] ? rollback_registered_many+0xec0/0xec0 [ 25.572921][ T12] ? wait_for_completion_interruptible+0x2f0/0x2f0 [ 25.579394][ T12] unregister_netdevice_queue+0x1d7/0x2b0 [ 25.585090][ T12] unregister_netdev+0x18/0x20 [ 25.589830][ T12] r871xu_dev_remove+0xe2/0x215 [ 25.594664][ T12] usb_unbind_interface+0x1bd/0x8a0 [ 25.599840][ T12] ? __pm_runtime_idle+0xd1/0x310 [ 25.604848][ T12] ? usb_autoresume_device+0x60/0x60 [ 25.610119][ T12] device_release_driver_internal+0x432/0x500 [ 25.616182][ T12] bus_remove_device+0x2eb/0x5a0 [ 25.621112][ T12] device_del+0x481/0xd30 [ 25.625418][ T12] ? mark_held_locks+0x9f/0xe0 [ 25.630171][ T12] ? device_create_with_groups+0x120/0x120 [ 25.635963][ T12] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 25.641245][ T12] ? remove_intf_ep_devs+0x13f/0x1d0 [ 25.646516][ T12] usb_disable_device+0x23d/0x790 [ 25.651528][ T12] usb_disconnect+0x293/0x900 [ 25.656214][ T12] hub_event+0x1abf/0x43c0 [ 25.660606][ T12] ? hub_port_debounce+0x350/0x350 [ 25.665709][ T12] ? __x64_sys_sysinfo+0x30/0x40 [ 25.670639][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.676160][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.681421][ T12] ? _raw_spin_unlock_irq+0x1f/0x30 [ 25.686592][ T12] process_one_work+0x965/0x1630 [ 25.691525][ T12] ? lock_release+0x720/0x720 [ 25.696201][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 25.701549][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 25.706475][ T12] worker_thread+0x7ab/0xe20 [ 25.711047][ T12] ? process_one_work+0x1630/0x1630 [ 25.716231][ T12] kthread+0x326/0x430 [ 25.720276][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 25.725621][ T12] ret_from_fork+0x24/0x30 [ 25.730178][ T12] Kernel Offset: disabled [ 25.734550][ T12] Rebooting in 86400 seconds..