1 files changed, 6 insertions, 0 deletions
diff --git a/src/zap/zapimage.cpp b/src/zap/zapimage.cpp
index 27b46520be..61cf099898 100644
--- a/src/zap/zapimage.cpp
+++ b/src/zap/zapimage.cpp
@@ -2620,6 +2620,12 @@ HRESULT ZapImage::parseProfileData()
         READ(entry,CORBBTPROF_SECTION_TABLE_ENTRY);
 
         SectionFormat format = sectionHeader->Entries[i].FormatID;
+        _ASSERTE(format >= 0);
+        if (format < 0)
+        {
+            continue;
+        }
+
         if (convertFromV1)
         {
             if (format < LastTokenFlagSection)