--- sidplay-libs/libsidplay/src/sidtune/SidTune.cpp.old	2019-11-22 14:24:46.584743428 +0100
+++ sidplay-libs/libsidplay/src/sidtune/SidTune.cpp	2019-11-22 14:24:52.620740613 +0100
@@ -554,6 +554,11 @@
 bool SidTune::acceptSidTune(const char* dataFileName, const char* infoFileName,
                             Buffer_sidtt<const uint_least8_t>& buf)
 {
+    if( buf.len() < fileOffset)
+    {
+        info.statusString = SidTune::txt_corrupt;
+        return false;
+    }
     // @FIXME@ - MUS
     if ( info.numberOfInfoStrings == 3 )
     {   // Add <?> (HVSC standard) to missing title, author, release fields