diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index 00215c9..885f2cb 100644
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -2739,8 +2739,10 @@
                     int32_t delay, padding;
                     if (sscanf(mLastCommentData,
                                " %*x %x %x %*x", &delay, &padding) == 2) {
-                        if (mLastTrack == NULL)
+                        if (mLastTrack == NULL) {
+                            delete[] buffer;
                             return ERROR_MALFORMED;
+                        }
 
                         mLastTrack->meta->setInt32(kKeyEncoderDelay, delay);
                         mLastTrack->meta->setInt32(kKeyEncoderPadding, padding);