Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 do not properly handle Cascading Style Sheets (CSS) token sequences in conjunction with CANVAS elements, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that lead to a "stale pointer."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14460
https://exchange.xforce.ibmcloud.com/vulnerabilities/64664
http://www.srware.net/forum/viewtopic.php?f=18&t=2054
http://www.securityfocus.com/bid/45788
http://secunia.com/advisories/42951
http://googlechromereleases.blogspot.com/2011/01/chrome-stable-release.html