diff --git a/framesequence/jni/FrameSequence_webp.cpp b/framesequence/jni/FrameSequence_webp.cpp
index 034847a..aa99b90 100644
--- a/framesequence/jni/FrameSequence_webp.cpp
+++ b/framesequence/jni/FrameSequence_webp.cpp
@@ -105,6 +105,10 @@
             return;
         }
         mData.size = CHUNK_HEADER_SIZE + readSize;
+        if(mData.size < RIFF_HEADER_SIZE) {
+            ALOGE("WebP file malformed");
+            return;
+        }
         mData.bytes = new uint8_t[mData.size];
         memcpy((void*)mData.bytes, riff_header, RIFF_HEADER_SIZE);