diff --git a/modules/gralloc/gralloc.cpp b/modules/gralloc/gralloc.cpp
index 4eb9317..54aa64c 100644
--- a/modules/gralloc/gralloc.cpp
+++ b/modules/gralloc/gralloc.cpp
@@ -329,6 +329,7 @@
         hnd->base = int(base)+offset;
         hnd->lockState = lockState;
         *pHandle = hnd;
+        memset((void*)hnd->base, 0, size);
     }
     
     LOGE_IF(err, "gralloc failed err=%s", strerror(-err));