Buffer overflow in certain functions in src/fileio.c and src/unix/fileio.c in xmame before 11 January 2006 may allow local users to gain privileges via a long (1) -lang, (2) -ctrlr, (3) -pb, or (4) -rec argument on many operating systems, and via a long (5) -jdev argument on Ubuntu Linux.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24102
http://x.mame.net/changes-unix.html
http://www.securityfocus.com/archive/1/421849/100/0/threaded