[info] Using makefile-style concurrent boot in runlevel 2. [ 14.582952][ C1] random: crng init done [....] 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 '10.128.0.79' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.350125][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 44.590081][ T22] usb 1-1: Using ep0 maxpacket: 32 [ 44.710180][ T22] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 44.718434][ T22] usb 1-1: config 0 has no interface number 0 [ 44.724683][ T22] usb 1-1: New USB device found, idVendor=06f8, idProduct=e034, bcdDevice=42.13 [ 44.733762][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.743116][ T22] usb 1-1: config 0 descriptor?? executing program [ 45.040162][ T22] usb 1-1: string descriptor 0 read error: -71 [ 45.049150][ T22] r8712u: register rtl8712_netdev_ops to netdev_ops [ 45.055947][ T22] usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints [ 45.100150][ T22] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 45.106793][ T22] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 45.114295][ T22] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 45.123373][ T22] usb 1-1: USB disconnect, device number 2 [ 45.149642][ T1722] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 45.158722][ T1722] usb 1-1: r8712u: Firmware request failed [ 45.164812][ T22] ------------[ cut here ]------------ [ 45.170385][ T22] WARNING: CPU: 1 PID: 22 at net/core/dev.c:8710 rollback_registered_many+0x1de/0xea0 [ 45.179904][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 45.186497][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc2-syzkaller #0 [ 45.194635][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.204681][ T22] Workqueue: usb_hub_wq hub_event [ 45.209694][ T22] Call Trace: [ 45.212991][ T22] dump_stack+0xef/0x16e [ 45.217231][ T22] ? rollback_registered_many+0x170/0xea0 [ 45.222929][ T22] panic+0x2aa/0x6e1 [ 45.226805][ T22] ? add_taint.cold+0x16/0x16 [ 45.231460][ T22] ? printk+0xba/0xed [ 45.235421][ T22] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 45.240857][ T22] ? __warn.cold+0x14/0x30 [ 45.245250][ T22] ? __warn+0xd5/0x1c8 [ 45.249297][ T22] ? rollback_registered_many+0x1de/0xea0 [ 45.254993][ T22] __warn.cold+0x2f/0x30 [ 45.259234][ T22] ? rollback_registered_many+0x1de/0xea0 [ 45.265046][ T22] report_bug+0x27b/0x2f0 [ 45.269362][ T22] do_error_trap+0x12b/0x1e0 [ 45.273953][ T22] ? rollback_registered_many+0x1de/0xea0 [ 45.279667][ T22] do_invalid_op+0x32/0x40 [ 45.284150][ T22] ? rollback_registered_many+0x1de/0xea0 [ 45.289888][ T22] invalid_op+0x23/0x30 [ 45.294036][ T22] RIP: 0010:rollback_registered_many+0x1de/0xea0 [ 45.300345][ 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 70 0a 87 fc 45 84 ff 0f 85 49 ff ff ff e8 32 09 87 fc <0f> 0b 48 89 ef e8 38 53 30 fd 31 ff 89 c5 89 c6 e8 4d 0a 87 fc 40 [ 45.320196][ T22] RSP: 0018:ffff8881d8c37648 EFLAGS: 00010293 [ 45.326244][ T22] RAX: ffff8881da24e200 RBX: ffff8881cfbc0000 RCX: ffffffff84b7f660 [ 45.334196][ T22] RDX: 0000000000000000 RSI: ffffffff84b7f66e RDI: 0000000000000001 [ 45.342149][ T22] RBP: ffff8881cfbc0068 R08: ffff8881da24e200 R09: fffffbfff0f250b5 [ 45.350101][ T22] R10: fffffbfff0f250b4 R11: ffffffff879285a7 R12: ffff8881d8c37798 [ 45.358074][ T22] R13: ffff8881d8c37730 R14: dffffc0000000000 R15: 0000000000000000 [ 45.366040][ T22] ? rollback_registered_many+0x1d0/0xea0 [ 45.371752][ T22] ? rollback_registered_many+0x1de/0xea0 [ 45.377467][ T22] ? rollback_registered_many+0x1de/0xea0 [ 45.383178][ T22] ? unregister_netdev+0xe/0x20 [ 45.388012][ T22] ? generic_xdp_install+0x490/0x490 [ 45.393369][ T22] ? __mutex_lock+0x42b/0x1360 [ 45.398175][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 45.403192][ T22] ? unregister_netdev+0xe/0x20 [ 45.408050][ T22] ? mark_held_locks+0x9f/0xe0 [ 45.412796][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 45.418011][ T22] ? mutex_trylock+0x2e0/0x2e0 [ 45.422763][ T22] rollback_registered+0xf2/0x1c0 [ 45.427787][ T22] ? rollback_registered_many+0xea0/0xea0 [ 45.433487][ T22] ? wait_for_completion_interruptible+0x420/0x420 [ 45.439985][ T22] ? wake_up_q+0x140/0x140 [ 45.444403][ T22] unregister_netdevice_queue+0x1d7/0x2b0 [ 45.450108][ T22] unregister_netdev+0x18/0x20 [ 45.454855][ T22] r871xu_dev_remove+0xe2/0x215 [ 45.459701][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 45.464891][ T22] ? usb_autoresume_device+0x60/0x60 [ 45.470161][ T22] device_release_driver_internal+0x42f/0x500 [ 45.476211][ T22] bus_remove_device+0x2dc/0x4a0 [ 45.481134][ T22] device_del+0x481/0xd30 [ 45.485443][ T22] ? device_create_with_groups+0x120/0x120 [ 45.491232][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 45.496496][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 45.501760][ T22] usb_disable_device+0x211/0x690 [ 45.506773][ T22] usb_disconnect+0x284/0x8d0 [ 45.511447][ T22] hub_event+0x1753/0x3860 [ 45.515845][ T22] ? hub_port_debounce+0x260/0x260 [ 45.520941][ T22] ? find_held_lock+0x2d/0x110 [ 45.525715][ T22] ? mark_held_locks+0xe0/0xe0 [ 45.530459][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 45.535984][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 45.541259][ T22] process_one_work+0x92b/0x1530 [ 45.546336][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 45.551703][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 45.556711][ T22] worker_thread+0x7ab/0xe20 [ 45.561314][ T22] ? process_one_work+0x1530/0x1530 [ 45.566493][ T22] kthread+0x318/0x420 [ 45.570549][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 45.575998][ T22] ret_from_fork+0x24/0x30 [ 45.581054][ T22] Kernel Offset: disabled [ 45.585420][ T22] Rebooting in 86400 seconds..