Buffer overflow in the OMXNodeInstance::emptyBuffer function in omx/OMXNodeInstance.cpp in libstagefright in Android before 5.1.1 LMY48I allows attackers to execute arbitrary code via a crafted application, aka internal bug 20634516.
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.