Fix Segv on unknown address error flagged by fuzzer test. am: c3929283fe

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23914021

Change-Id: Idb8dcf59e58f85b78e23eafd04ce85e77835dcbb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>