The cdc_parse_cdc_header function in drivers/usb/core/message.c in the Linux kernel before 4.13.6 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.
https://groups.google.com/d/msg/syzkaller/nXnjqI73uPo/6sUyq6kqAgAJ
https://github.com/torvalds/linux/commit/2e1c42391ff2556387b3cb6308b24f6f65619feb
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html