[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[ 14.778339][ T1669] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 15.120919][ C0] random: crng init done Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.90' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.590542][ T78] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 41.830530][ T78] usb 1-1: Using ep0 maxpacket: 16 [ 41.990623][ T78] usb 1-1: unable to get BOS descriptor or descriptor too short [ 42.070609][ T78] usb 1-1: config 101 has an invalid interface number: 85 but max is 1 [ 42.078947][ T78] usb 1-1: config 101 contains an unexpected descriptor of type 0x2, skipping [ 42.087940][ T78] usb 1-1: config 101 has an invalid interface number: 42 but max is 1 [ 42.096223][ T78] usb 1-1: config 101 has no interface number 0 [ 42.102490][ T78] usb 1-1: config 101 has no interface number 1 [ 42.108762][ T78] usb 1-1: config 101 interface 85 altsetting 4 endpoint 0xD has invalid maxpacket 591, setting to 64 [ 42.119738][ T78] usb 1-1: config 101 interface 85 altsetting 4 has an invalid endpoint with address 0x80, skipping [ 42.130530][ T78] usb 1-1: config 101 interface 85 altsetting 4 has an invalid endpoint with address 0x80, skipping [ 42.141336][ T78] usb 1-1: config 101 interface 85 altsetting 4 bulk endpoint 0x5 has invalid maxpacket 995 [ 42.151423][ T78] usb 1-1: config 101 interface 85 altsetting 4 endpoint 0xF has invalid maxpacket 335, setting to 64 [ 42.162387][ T78] usb 1-1: config 101 interface 85 altsetting 4 endpoint 0x6 has invalid maxpacket 765, setting to 64 [ 42.173390][ T78] usb 1-1: config 101 interface 42 altsetting 2 endpoint 0x9 has invalid maxpacket 474, setting to 64 [ 42.184446][ T78] usb 1-1: config 101 interface 85 has no altsetting 0 [ 42.191320][ T78] usb 1-1: config 101 interface 42 has no altsetting 0 [ 42.430618][ T78] usb 1-1: string descriptor 0 read error: -22 [ 42.436944][ T78] usb 1-1: New USB device found, idVendor=0b05, idProduct=1791, bcdDevice=c1.19 [ 42.446169][ T78] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 42.493335][ T78] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.500090][ T78] usb 1-1: r8712u: USB_SPEED_HIGH with 4 endpoints [ 42.600615][ T78] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 42.607249][ T78] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 42.614812][ T78] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 42.626119][ T78] r8712u: register rtl8712_netdev_ops to netdev_ops [ 42.632849][ T78] usb 1-1: r8712u: USB_SPEED_HIGH with 1 endpoints [ 42.667368][ T1728] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 42.676453][ T78] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 42.683628][ T78] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 42.691405][ T78] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 42.699558][ T1728] usb 1-1: r8712u: Firmware request failed [ 42.707634][ T78] usb 1-1: USB disconnect, device number 2 [ 42.716301][ T1728] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 42.725664][ T1728] usb 1-1: r8712u: Firmware request failed [ 42.732040][ T78] ------------[ cut here ]------------ [ 42.737607][ T78] WARNING: CPU: 1 PID: 78 at net/core/dev.c:8709 rollback_registered_many+0x1de/0xea0 [ 42.747134][ T78] Kernel panic - not syncing: panic_on_warn set ... [ 42.754116][ T78] CPU: 1 PID: 78 Comm: kworker/1:1 Not tainted 5.4.0-syzkaller #0 [ 42.761907][ T78] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.771975][ T78] Workqueue: usb_hub_wq hub_event [ 42.776987][ T78] Call Trace: [ 42.780263][ T78] dump_stack+0xef/0x16e [ 42.784492][ T78] ? rollback_registered_many+0x120/0xea0 [ 42.790193][ T78] panic+0x2aa/0x6e1 [ 42.794070][ T78] ? add_taint.cold+0x16/0x16 [ 42.798812][ T78] ? printk+0xba/0xed [ 42.802783][ T78] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 42.808228][ T78] ? __warn.cold+0x14/0x30 [ 42.812623][ T78] ? __warn+0xd5/0x1c8 [ 42.816697][ T78] ? rollback_registered_many+0x1de/0xea0 [ 42.822409][ T78] __warn.cold+0x2f/0x30 [ 42.826650][ T78] ? rollback_registered_many+0x1de/0xea0 [ 42.832374][ T78] report_bug+0x27b/0x2f0 [ 42.836694][ T78] do_error_trap+0x12b/0x1e0 [ 42.841276][ T78] ? rollback_registered_many+0x1de/0xea0 [ 42.846971][ T78] do_invalid_op+0x32/0x40 [ 42.851365][ T78] ? rollback_registered_many+0x1de/0xea0 [ 42.857061][ T78] invalid_op+0x23/0x30 [ 42.861197][ T78] RIP: 0010:rollback_registered_many+0x1de/0xea0 [ 42.867510][ T78] 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 80 55 89 fc 45 84 ff 0f 85 49 ff ff ff e8 42 54 89 fc <0f> 0b 48 89 ef e8 18 47 31 fd 31 ff 89 c5 89 c6 e8 5d 55 89 fc 40 [ 42.887098][ T78] RSP: 0018:ffff8881d92c7648 EFLAGS: 00010293 [ 42.893141][ T78] RAX: ffff8881d9151880 RBX: ffff8881cf480000 RCX: ffffffff84b529b0 [ 42.901092][ T78] RDX: 0000000000000000 RSI: ffffffff84b529be RDI: 0000000000000001 [ 42.909125][ T78] RBP: ffff8881cf480068 R08: ffff8881d9151880 R09: fffffbfff0ee4565 [ 42.917082][ T78] R10: fffffbfff0ee4564 R11: ffffffff87722b27 R12: ffff8881d92c7798 [ 42.925033][ T78] R13: ffff8881d92c7730 R14: dffffc0000000000 R15: 0000000000000000 [ 42.932993][ T78] ? rollback_registered_many+0x1d0/0xea0 [ 42.938691][ T78] ? rollback_registered_many+0x1de/0xea0 [ 42.944563][ T78] ? rollback_registered_many+0x1de/0xea0 [ 42.950257][ T78] ? unregister_netdev+0xe/0x20 [ 42.955083][ T78] ? generic_xdp_install+0x490/0x490 [ 42.960355][ T78] ? __mutex_lock+0x42b/0x1360 [ 42.965214][ T78] ? do_raw_spin_lock+0x11a/0x280 [ 42.970222][ T78] ? unregister_netdev+0xe/0x20 [ 42.975047][ T78] ? mark_held_locks+0x9f/0xe0 [ 42.979789][ T78] ? _raw_spin_unlock_irq+0x1f/0x30 [ 42.984994][ T78] ? mutex_trylock+0x2e0/0x2e0 [ 42.989779][ T78] rollback_registered+0xf2/0x1c0 [ 42.994801][ T78] ? rollback_registered_many+0xea0/0xea0 [ 43.000498][ T78] ? wait_for_completion_interruptible+0x420/0x420 [ 43.006998][ T78] ? _raw_spin_unlock_irq+0x1f/0x30 [ 43.012172][ T78] ? wake_up_q+0x140/0x140 [ 43.016594][ T78] unregister_netdevice_queue+0x1d7/0x2b0 [ 43.022290][ T78] unregister_netdev+0x18/0x20 [ 43.027040][ T78] r871xu_dev_remove+0xe2/0x215 [ 43.031882][ T78] usb_unbind_interface+0x1bd/0x8a0 [ 43.037067][ T78] ? usb_autoresume_device+0x60/0x60 [ 43.042333][ T78] device_release_driver_internal+0x42f/0x500 [ 43.048376][ T78] bus_remove_device+0x2dc/0x4a0 [ 43.053294][ T78] device_del+0x481/0xd30 [ 43.057620][ T78] ? device_create_with_groups+0x120/0x120 [ 43.063403][ T78] ? usb_remove_ep_devs+0x3e/0x80 [ 43.068403][ T78] ? remove_intf_ep_devs+0x13f/0x1d0 [ 43.073695][ T78] usb_disable_device+0x211/0x690 [ 43.078700][ T78] usb_disconnect+0x284/0x8d0 [ 43.083426][ T78] hub_event+0x1753/0x3860 [ 43.087836][ T78] ? hub_port_debounce+0x260/0x260 [ 43.092939][ T78] ? find_held_lock+0x2d/0x110 [ 43.097699][ T78] ? mark_held_locks+0xe0/0xe0 [ 43.102535][ T78] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 43.108258][ T78] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 43.113550][ T78] process_one_work+0x92b/0x1530 [ 43.118473][ T78] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.123823][ T78] ? do_raw_spin_lock+0x11a/0x280 [ 43.128857][ T78] worker_thread+0x7ab/0xe20 [ 43.133422][ T78] ? process_one_work+0x1530/0x1530 [ 43.138605][ T78] kthread+0x318/0x420 [ 43.142658][ T78] ? kthread_create_on_node+0xf0/0xf0 [ 43.148005][ T78] ret_from_fork+0x24/0x30 [ 43.153078][ T78] Kernel Offset: disabled [ 43.157448][ T78] Rebooting in 86400 seconds..