commit fca109182db1adaed42a042f390ae4640c16e26b
author rago <rago@google.com> Mon Aug 22 17:20:26 2016 -0700
committer gitbuildkicker <android-build@google.com> Tue Sep 27 18:11:13 2016 -0700
tree bf4e55377fec172cadfe6a03e791bde6b636b094
parent fad35244907f69560142c8d9716759cd52342f28

Fix potential overflow in Visualizer effect

Bug: 30229821
Change-Id: Idd3c1563dc9d3261e6e168e945005bf133ab2cdb
(cherry picked from commit 099ab280775946e7c36c73fde47f2ee5a2579f53)
(cherry picked from commit 46dc714d523a41a4f886eecbe5b9947a4c900510)

media/libeffects/visualizer/EffectVisualizer.cpp

diff --git a/media/libeffects/visualizer/EffectVisualizer.cpp b/media/libeffects/visualizer/EffectVisualizer.cpp
index 0c310c5..91f9fc7 100644
--- a/media/libeffects/visualizer/EffectVisualizer.cpp
+++ b/media/libeffects/visualizer/EffectVisualizer.cpp
@@ -25,6 +25,7 @@
 #include <time.h>
 #include <math.h>
 #include <audio_effects/effect_visualizer.h>
+#include <cutils/log.h>
 
 
 extern "C" {
@@ -599,6 +600,14 @@
         } 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;