[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. [ 13.283856][ C1] random: crng init done [ 13.288191][ C1] random: 7 urandom warning(s) missed due to ratelimiting Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.238' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.506668][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 24.596840][ T83] usb 1-1: Using ep0 maxpacket: 8 [ 24.716514][ T83] usb 1-1: config 0 has an invalid interface number: 82 but max is 0 [ 24.724695][ T83] usb 1-1: config 0 has no interface number 0 [ 24.731774][ T83] usb 1-1: config 0 interface 82 altsetting 255 endpoint 0x5 has an invalid bInterval 0, changing to 7 [ 24.742903][ T83] usb 1-1: config 0 interface 82 altsetting 255 endpoint 0x5 has invalid wMaxPacketSize 0 [ 24.752879][ T83] usb 1-1: config 0 interface 82 altsetting 255 endpoint 0x1 has an invalid bInterval 0, changing to 7 [ 24.764029][ T83] usb 1-1: config 0 interface 82 altsetting 255 endpoint 0x1 has invalid wMaxPacketSize 0 [ 24.773996][ T83] usb 1-1: config 0 interface 82 has no altsetting 0 [ 24.780732][ T83] usb 1-1: New USB device found, idVendor=1740, idProduct=9605, bcdDevice=83.9a [ 24.789935][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.801646][ T83] usb 1-1: config 0 descriptor?? executing program [ 25.076202][ T83] usb 1-1: string descriptor 0 read error: -71 [ 25.088270][ T83] r8712u: register rtl8712_netdev_ops to netdev_ops [ 25.095261][ T83] usb 1-1: r8712u: USB_SPEED_HIGH with 2 endpoints [ 25.136183][ T83] usb 1-1: r8712u: Boot from EFUSE: Autoload Failed [ 25.142854][ T83] usb 1-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00 [ 25.150884][ T83] usb 1-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin" [ 25.160578][ T83] usb 1-1: USB disconnect, device number 2 [ 25.198885][ T17] usb 1-1: Direct firmware load for rtlwifi/rtl8712u.bin failed with error -2 [ 25.208558][ T17] usb 1-1: r8712u: Firmware request failed [ 25.214734][ T83] ------------[ cut here ]------------ [ 25.220627][ T83] WARNING: CPU: 1 PID: 83 at net/core/dev.c:8792 rollback_registered_many+0x1ed/0xec0 [ 25.230532][ T83] Kernel panic - not syncing: panic_on_warn set ... [ 25.237299][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.7.0-rc1-syzkaller #0 [ 25.246250][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.258910][ T83] Workqueue: usb_hub_wq hub_event [ 25.264809][ T83] Call Trace: [ 25.268412][ T83] dump_stack+0xef/0x16e [ 25.272768][ T83] ? rollback_registered_many+0x100/0xec0 [ 25.278680][ T83] panic+0x2aa/0x6e1 [ 25.282768][ T83] ? add_taint.cold+0x16/0x16 [ 25.288586][ T83] ? printk+0xba/0xed [ 25.292555][ T83] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 25.298654][ T83] ? __warn.cold+0x14/0x30 [ 25.303082][ T83] ? __warn+0xd5/0x1c8 [ 25.307262][ T83] ? rollback_registered_many+0x1ed/0xec0 [ 25.313051][ T83] __warn.cold+0x2f/0x30 [ 25.317295][ T83] ? rollback_registered_many+0x1ed/0xec0 [ 25.323450][ T83] report_bug+0x27b/0x2f0 [ 25.327861][ T83] do_error_trap+0x12b/0x1e0 [ 25.332622][ T83] ? rollback_registered_many+0x1ed/0xec0 [ 25.338353][ T83] do_invalid_op+0x32/0x40 [ 25.343043][ T83] ? rollback_registered_many+0x1ed/0xec0 [ 25.348766][ T83] invalid_op+0x23/0x30 [ 25.353015][ T83] RIP: 0010:rollback_registered_many+0x1ed/0xec0 [ 25.359343][ T83] Code: 05 00 00 31 ff 44 89 fe e8 10 02 71 fc 45 84 ff 0f 85 49 ff ff ff e8 d2 00 71 fc 0f 1f 44 00 00 e8 c8 00 71 fc e8 c3 00 71 fc <0f> 0b 48 89 ef e8 99 57 1d fd 31 ff 89 c5 89 c6 e8 de 01 71 fc 40 [ 25.379052][ T83] RSP: 0018:ffff8881d8ad7620 EFLAGS: 00010293 [ 25.385102][ T83] RAX: ffff8881d8d6e300 RBX: ffff8881ccd40000 RCX: ffffffff84cf39d0 [ 25.393171][ T83] RDX: 0000000000000000 RSI: ffffffff84cf39ed RDI: 0000000000000001 [ 25.401130][ T83] RBP: ffff8881ccd40068 R08: ffff8881d8d6e300 R09: fffffbfff0f8c1b1 [ 25.409110][ T83] R10: ffffffff87c60d87 R11: fffffbfff0f8c1b0 R12: ffff8881d8ad7768 [ 25.417273][ T83] R13: dffffc0000000000 R14: ffff8881d8ad7700 R15: 0000000000000000 [ 25.425261][ T83] ? rollback_registered_many+0x1d0/0xec0 [ 25.430982][ T83] ? rollback_registered_many+0x1ed/0xec0 [ 25.436888][ T83] ? find_held_lock+0x2d/0x110 [ 25.441742][ T83] ? netif_set_real_num_tx_queues+0x710/0x710 [ 25.447818][ T83] ? __mutex_lock+0x42b/0x1360 [ 25.452600][ T83] ? lock_downgrade+0x720/0x720 [ 25.457777][ T83] ? unregister_netdev+0xe/0x20 [ 25.462636][ T83] ? mark_held_locks+0x9f/0xe0 [ 25.467572][ T83] ? mutex_trylock+0x2c0/0x2c0 [ 25.472354][ T83] rollback_registered+0xf2/0x1c0 [ 25.477365][ T83] ? rollback_registered_many+0xec0/0xec0 [ 25.483391][ T83] ? wait_for_completion_interruptible+0x2f0/0x2f0 [ 25.490709][ T83] unregister_netdevice_queue+0x1d7/0x2b0 [ 25.496606][ T83] unregister_netdev+0x18/0x20 [ 25.501362][ T83] r871xu_dev_remove+0xe2/0x215 [ 25.506425][ T83] usb_unbind_interface+0x1bd/0x8a0 [ 25.511640][ T83] ? __pm_runtime_idle+0xd1/0x310 [ 25.516658][ T83] ? usb_autoresume_device+0x60/0x60 [ 25.522057][ T83] device_release_driver_internal+0x432/0x500 [ 25.528138][ T83] bus_remove_device+0x2eb/0x5a0 [ 25.533163][ T83] device_del+0x481/0xd30 [ 25.537604][ T83] ? device_create_with_groups+0x120/0x120 [ 25.543392][ T83] ? usb_remove_ep_devs+0x3e/0x80 [ 25.548457][ T83] ? remove_intf_ep_devs+0x13f/0x1d0 [ 25.553763][ T83] usb_disable_device+0x23d/0x790 [ 25.558773][ T83] usb_disconnect+0x293/0x900 [ 25.563432][ T83] hub_event+0x1abf/0x43c0 [ 25.568128][ T83] ? hub_port_debounce+0x350/0x350 [ 25.573526][ T83] ? umh_clean_and_save_pid+0x1/0xd0 [ 25.578909][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.585223][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.590531][ T83] ? _raw_spin_unlock_irq+0x1f/0x30 [ 25.595853][ T83] process_one_work+0x965/0x1630 [ 25.602002][ T83] ? lock_release+0x720/0x720 [ 25.606695][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 25.613549][ T83] ? rwlock_bug.part.0+0x90/0x90 [ 25.619634][ T83] worker_thread+0x7ab/0xe20 [ 25.624621][ T83] ? process_one_work+0x1630/0x1630 [ 25.630182][ T83] kthread+0x326/0x430 [ 25.634699][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 25.640074][ T83] ret_from_fork+0x24/0x30 [ 25.645494][ T83] Kernel Offset: disabled [ 25.650363][ T83] Rebooting in 86400 seconds..