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.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.