diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 2ebf617..31667d9 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -484,7 +484,8 @@
     if (numObjects > 0) {
         // grow objects
         if (mObjectsCapacity < mObjectsSize + numObjects) {
-            int newSize = ((mObjectsSize + numObjects)*3)/2;
+            size_t newSize = ((mObjectsSize + numObjects)*3)/2;
+            if (newSize < mObjectsSize) return NO_MEMORY;   // overflow
             binder_size_t *objects =
                 (binder_size_t*)realloc(mObjects, newSize*sizeof(binder_size_t));
             if (objects == (binder_size_t*)0) {
@@ -1038,6 +1039,7 @@
     }
     if (!enoughObjects) {
         size_t newSize = ((mObjectsSize+2)*3)/2;
+        if (newSize < mObjectsSize) return NO_MEMORY;   // overflow
         binder_size_t* objects = (binder_size_t*)realloc(mObjects, newSize*sizeof(binder_size_t));
         if (objects == NULL) return NO_MEMORY;
         mObjects = objects;