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diff --git a/ChangeLog b/ChangeLog
index 4081e5d5f90d2a02652125966b3334b8b304f4a1..a5e8e17b689669d8e862091aa0d2efe33de9edfd 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,9 @@
     https://github.com/ImageMagick/ImageMagick/issues/612).
   * Fixed numerous memory leaks (reference
     https://github.com/ImageMagick/ImageMagick/issues).
+  * coders/png.c: Initialized quantum_scanline and quantum_info
+    to prevent a bad free (reference
+    https://github.com/ImageMagick/ImageMagick/issues/621).
 
 2017-07-24  7.0.6-4 Glenn Randers-Pehrson <glennrp@image...>
   * Removed write_chunk_from_profile() from coders/png.c because it has