From: Cristy <urban-warrior@imagemagick.org>
Date: Fri, 23 Mar 2018 00:33:58 +0000 (-0400)
Subject: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7071
X-Git-Tag: 7.0.7-28~48
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4fc6fc13832a0ab0037040cc951ace96b240eb22;p=imagemagick

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7071
---

diff --git a/MagickCore/fx.c b/MagickCore/fx.c
index 6d01bbb4a..1dcc81d11 100644
--- a/MagickCore/fx.c
+++ b/MagickCore/fx.c
@@ -2098,6 +2098,7 @@ static double FxEvaluateSubexpression(FxInfo *fx_info,
   ExceptionInfo *exception)
 {
 #define FxMaxParenthesisDepth  58
+#define FxMaxSubexpressionDepth  200
 
   char
     *q,
@@ -2111,7 +2112,7 @@ static double FxEvaluateSubexpression(FxInfo *fx_info,
     *p;
 
   *beta=0.0;
-  if (depth > MagickMaxRecursionDepth)
+  if (depth > FxMaxSubexpressionDepth)
     {
       (void) ThrowMagickException(exception,GetMagickModule(),OptionError,
         "UnableToParseExpression","`%s'",expression);