SkPath.cpp in Skia, as used in Google Chrome before 53.0.2785.89 on Windows and OS X and before 53.0.2785.92 on Linux, does not properly validate the return values of ChopMonoAtY calls, which allows remote attackers to cause a denial of service (uninitialized memory access and application crash) or possibly have unspecified other impact via crafted graphics data.
https://googlechromereleases.blogspot.com/2016/08/stable-channel-update-for-desktop_31.html
https://codereview.chromium.org/2006143009