Fix security vulnerability: Equalizer command might allow negative indexes am: e981cca9ff am: 8fb8275471 am: 6b4cf2c0d3 am: dd060b3bb4 am: 4bcf2e6fbe am: 81e0914473 am: 3d16a9c4b4 am: cde28c8a31
am: 00d12e3037

Change-Id: I7433b4583cc328085ed0d4c27038ca3c7d1c5137