The SkBitmap::ReadRawPixels function in core/SkBitmap.cpp in the filters implementation in Skia, 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 via vectors that trigger an out-of-bounds write operation.
https://skia.googlesource.com/skia/+/6af314724f51ad79a640844536c667bb83de5690
https://security.gentoo.org/glsa/201503-12
https://code.google.com/p/chromium/issues/detail?id=448423
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