From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 30 Sep 2017 15:12:31 +0000 (-0400)
Subject: https://github.com/ImageMagick/ImageMagick/issues/816
X-Git-Tag: 7.0.7-5~12
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7519c777c85dff9d64d8328bbfadab6bd574ada5;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/816
---

diff --git a/MagickCore/draw.c b/MagickCore/draw.c
index defd6b7e1..4d2746a33 100644
--- a/MagickCore/draw.c
+++ b/MagickCore/draw.c
@@ -6001,7 +6001,16 @@ static PrimitiveInfo *TraceStrokePolygon(const DrawInfo *draw_info,
     number_vertices+2UL,sizeof(*polygon_primitive));
   if ((path_p == (PointInfo *) NULL) || (path_q == (PointInfo *) NULL) ||
       (polygon_primitive == (PrimitiveInfo *) NULL))
-    return((PrimitiveInfo *) NULL);
+    {
+      if (path_p != (PointInfo *) NULL)
+        path_p=(PointInfo *) RelinquishMagickMemory(path_p);
+      if (path_q != (PointInfo *) NULL)
+        path_q=(PointInfo *) RelinquishMagickMemory(path_q);
+      if (polygon_primitive != (PrimitiveInfo *) NULL)
+        polygon_primitive=(PrimitiveInfo *) RelinquishMagickMemory(
+          polygon_primitive);
+      return((PrimitiveInfo *) NULL);
+    }
   (void) CopyMagickMemory(polygon_primitive,primitive_info,(size_t)
     number_vertices*sizeof(*polygon_primitive));
   closed_path=