CVE 2015-1299
Use-after-free vulnerability in the shared-timer implementation in Blink, as used in Google Chrome before 45.0.2454.85, allows remote attackers to cause a denial of service or possibly have unspecified other impact by leveraging erroneous timer firing, related to ThreadTimers.cpp and Timer.cpp.
See the 
CVE page on Mitre.org
for more details.
