Fix potential overflow in Visualizer effect

Bug: 30229821
Change-Id: Idd3c1563dc9d3261e6e168e945005bf133ab2cdb
(cherry picked from commit 099ab28)
(cherry picked from commit 46dc714)

Author: rago

media/libeffects/visualizer/EffectVisualizer.cpp

@@ -24,6 +24,7 @@
 #include <time.h>
 #include <math.h>
 #include <audio_effects/effect_visualizer.h>
+#include <cutils/log.h>
 
 
 extern "C" {
@@ -597,6 +598,14 @@ int Visualizer_command(effect_handle_t self, uint32_t cmdCode, uint32_t cmdSize,
         break;
 
     case VISUALIZER_CMD_MEASURE: {
+        if (pReplyData == NULL || replySize == NULL ||
+                *replySize < (sizeof(int32_t) * MEASUREMENT_COUNT)) {
+            ALOGV("VISUALIZER_CMD_MEASURE() error *replySize %" PRIu32
+                    " < (sizeof(int32_t) * MEASUREMENT_COUNT) %" PRIu32, *replySize,
+                    sizeof(int32_t) * MEASUREMENT_COUNT);
+            android_errorWriteLog(0x534e4554, "30229821");
+            return -EINVAL;
+        }
         uint16_t peakU16 = 0;
         float sumRmsSquared = 0.0f;
         uint8_t nbValidMeasurements = 0;