The "stub_send_ret_submit()" function (drivers/usb/usbip/stub_tx.c) in the Linux Kernel before version 4.14.8, 4.9.71, 4.1.49, and 4.4.107 allows attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet.
https://www.spinics.net/lists/linux-usb/msg163480.html
https://www.debian.org/security/2018/dsa-4187
https://usn.ubuntu.com/3754-1/
https://usn.ubuntu.com/3619-2/
https://usn.ubuntu.com/3619-1/
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-21/
https://secuniaresearch.flexerasoftware.com/advisories/80722/
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.71
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.107
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.49