Fix security vulnerability: potential OOB write in audioserver am: 3f9a6d3bd9 am: 28d8817df3 am: 750a6a4ed8 am: 559dbde531 am: 4654f9ab8b
am: 4154f08e79

Change-Id: I810091a4bc2713ec688e01f8656d581018e767dd