https://github.com/ImageMagick/ImageMagick/issues/550

ImageMagick · Jul 8, 2017 · c9aa9f8 · c9aa9f8
1 parent 91e0724
commit c9aa9f8
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/coders/png.c b/coders/png.c
@@ -4377,7 +4377,13 @@ static Image *ReadOneJNGImage(MngInfo *mng_info,
         type[0],type[1],type[2],type[3],(double) length);
 
     if (length > PNG_UINT_31_MAX || count == 0)
-      ThrowReaderException(CorruptImageError,"CorruptImage");
+      {
+        if (color_image != (Image *) NULL)
+          color_image=DestroyImage(color_image);
+        if (color_image_info != (Image *) NULL)
+          color_image_info=DestroyImageInfo(color_image_info);
+        ThrowReaderException(CorruptImageError,"CorruptImage");
+      }
 
     p=NULL;
     chunk=(unsigned char *) NULL;