fixed a possible array overflow and memory corruption in dicom reader

(brainvisa/aims-free#87)
brainvisa · Nov 17, 2022 · c0de846 · c0de846
1 parent f70666e
commit c0de846
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/somadicom/Dicom/MultiFileReader.cc b/src/somadicom/Dicom/MultiFileReader.cc
@@ -209,8 +209,11 @@ bool dcm::MultiFileReader::sortFiles( dcm::DicomDatasetHeader& datasetHeader )
 
       while ( f != fe )
       {
-
+        if( lut.size() <= pos )
+          lut.resize( pos + 1 );
         lut[ pos ] = f->second._bufferIndex;
+        if( _positions.size() <= pos )
+          _positions.resize( pos + 1 );
         _positions[ pos ] = f->second._imagePosition;
 
         pos += dimZ;