garydgregory commented on a change in pull request #196:
URL: https://github.com/apache/commons-imaging/pull/196#discussion_r790149284



##########
File path: 
src/main/java/org/apache/commons/imaging/formats/bmp/BmpImageParser.java
##########
@@ -385,6 +385,10 @@ private BmpImageContents readImageContents(final 
InputStream is,
                     + bhi.compression);
         }
 
+        if (paletteLength < 0) {
+            throw new ImageReadException("Invalid negative palette length: " + 
paletteLength);

Review comment:
       So the BmpHeaderInfo should not have been created in the first place? 
Maybe that's where the error checking should really go.




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