CVE-2014-7925
Use-after-free vulnerability in the WebAudio implementation in Blink, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger an audio-rendering thread in which AudioNode data is improperly maintained.
Date published : 2015-01-22
http://www.securityfocus.com/bid/72288
http://googlechromereleases.blogspot.com/2015/01/stable-update.html