Google Chrome before 19.0.1084.52 on Linux does not properly perform a cast of an unspecified variable, which allows remote attackers to cause a denial of service or possibly have unknown other impact by leveraging an error in the GTK implementation of the UI.
http://www.securitytracker.com/id?1027098
http://www.securityfocus.com/bid/53679
http://security.gentoo.org/glsa/glsa-201205-04.xml
http://secunia.com/advisories/49306
http://secunia.com/advisories/49277
http://googlechromereleases.blogspot.com/2012/05/stable-channel-update_23.html