The "stub_recv_cmd_submit()" function (drivers/usb/usbip/stub_rx.c) in the Linux Kernel before version 4.14.8, 4.9.71, and 4.4.114 when handling CMD_SUBMIT packets allows attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet.
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.114
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.71
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://secuniaresearch.flexerasoftware.com/advisories/80601/
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-21/
https://usn.ubuntu.com/3619-1/
https://usn.ubuntu.com/3619-2/