From 50d9cbb7a01f27cd6b095678a3b51260d621f9f4 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 23 Sep 2018 12:40:11 -0400
Subject: [PATCH] 
 https://oss-fuzz.com/v2/testcase-detail/5733690030686208?noredirect=1

---
 MagickCore/draw.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MagickCore/draw.c b/MagickCore/draw.c
index 537ea992b..98f2f2ac7 100644
--- a/MagickCore/draw.c
+++ b/MagickCore/draw.c
@@ -2255,6 +2255,8 @@ static MagickBooleanType CheckPrimitiveExtent(MVGInfo *mvg_info,
         (size_t) extent,quantum);
       if (*mvg_info->primitive_info != (PrimitiveInfo *) NULL)
         {
+          (void) memset(*mvg_info->primitive_info+*mvg_info->extent,0,
+            (extent-(*mvg_info->extent))*quantum);
           *mvg_info->extent=(size_t) extent;
           return(MagickTrue);
         }
-- 
2.40.0