Fix Segv on unknown address error flagged by fuzzer test. am: 99d0823ca2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23914020

Change-Id: Ie3e08e6a8aea04231b955d143ebadfa5414ea0c8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>