Fix stack content leak vulnerability in mediaserver am: 9a6861cbd3 am: 647f55d75d am: b6d08633e9 am: 7d616daf2b am: b57b64d46d am: 9ede6cef5e
am: dd7e169bd1

Change-Id: I7ba19831be3fb5e82c1f0b968f00abadbc8f38a7