The Human Interface Device (HID) subsystem in the Linux kernel through 3.11, when CONFIGLOGITECHFF, CONFIGLOGIG940FF, or CONFIGLOGIWHEELSFF is enabled, allows physically proximate attackers to cause a denial of service (heap-based out-of-bounds write) via a crafted device, related to (1) drivers/hid/hid-lgff.c, (2) drivers/hid/hid-lg3ff.c, and (3) drivers/hid/hid-lg4ff.c.