diff --git a/media/libstagefright/id3/ID3.cpp b/media/libstagefright/id3/ID3.cpp
index fa37b40..2a139b3 100644
--- a/media/libstagefright/id3/ID3.cpp
+++ b/media/libstagefright/id3/ID3.cpp
@@ -550,6 +550,9 @@
         return;
     }
 
+    if (mFrameSize < getHeaderLength() + 1) {
+        return;
+    }
     size_t n = mFrameSize - getHeaderLength() - 1;
     if (otherdata) {
         // skip past the encoding, language, and the 0 separator