Added release notes for python-pillow#6846

Author: radarhere

docs/releasenotes/9.4.0.rst

@@ -81,6 +81,13 @@ check the image size before allocating memory for it. This dates to the PIL
 fork. Pilllow 8.2.0 added a check for large sizes, but did not consider the
 case where one dimension was zero.
 
+Null pointer dereference crash in ImageFont
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Pillow attempted to dereference a null pointer in ImageFont, leading to a
+crash. An error is now raised instead. This would have been present since
+Pillow 8.0.0.
+
 Other Changes
 =============