1--- sidplay-libs/libsidplay/src/sidtune/SidTune.cpp.old	2019-11-22 14:24:46.584743428 +0100
2+++ sidplay-libs/libsidplay/src/sidtune/SidTune.cpp	2019-11-22 14:24:52.620740613 +0100
3@@ -554,6 +554,11 @@
4 bool SidTune::acceptSidTune(const char* dataFileName, const char* infoFileName,
5                             Buffer_sidtt<const uint_least8_t>& buf)
6 {
7+    if( buf.len() < fileOffset)
8+    {
9+        info.statusString = SidTune::txt_corrupt;
10+        return false;
11+    }
12     // @FIXME@ - MUS
13     if ( info.numberOfInfoStrings == 3 )
14     {   // Add <?> (HVSC standard) to missing title, author, release fields
15