Use-after-free vulnerability in Blink, as used in Google Chrome before 41.0.2272.76, allows remote attackers to cause a denial of service or possibly have unspecified other impact by leveraging incorrect ordering of operations in the Web SQL Database thread relative to Blink's main thread, related to the shutdown function in web/WebKit.cpp.
https://src.chromium.org/viewvc/blink?revision=190035&view=revision
https://src.chromium.org/viewvc/blink?revision=190021&view=revision
https://security.gentoo.org/glsa/201503-12
https://code.google.com/p/chromium/issues/detail?id=455368
http://www.ubuntu.com/usn/USN-2521-1
http://www.securityfocus.com/bid/72901
http://rhn.redhat.com/errata/RHSA-2015-0627.html
http://googlechromereleases.blogspot.com/2015/03/stable-channel-update.html