Merge \"Region: Detect malicious overflow in unflatten am: 1a65fccc50 am: fd579a51b5 am: 0e85f4d48d am: 0ec362e024 am: b82c6f52c0 am: 38f2d8aaf4\" into nyc-mr1-dev-plus-aosp
am: 8aab965232

Change-Id: I55fe4f6bae2ad2a33b172060d6e3ec7019dd7965