From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 27 Jan 2018 12:30:51 +0000 (-0500)
Subject: Eliminate Use-of-uninitialized-value in ParseGeometry()
X-Git-Tag: 7.0.7-23~272
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=40c374be9af667f4c284c038ec2a83489b29fb57;p=imagemagick

Eliminate Use-of-uninitialized-value in ParseGeometry()
Credit OSS Fuzz
---

diff --git a/MagickCore/geometry.c b/MagickCore/geometry.c
index 686ccb6df..138fe702c 100644
--- a/MagickCore/geometry.c
+++ b/MagickCore/geometry.c
@@ -1123,7 +1123,7 @@ MagickExport MagickStatusType ParseGeometry(const char *geometry,
       if ((flags & SigmaValue) != 0)
         geometry_info->rho*=PerceptibleReciprocal(geometry_info->sigma);
       geometry_info->sigma=1.0;
-      if (geometry_info->xi == 0.0)
+      if (((flags & XiNegative) != 0) && (geometry_info->xi == 0.0))
         geometry_info->sigma=2.0;
     }
   if (((flags & SigmaValue) == 0) && ((flags & XiValue) != 0) &&