From 312dd5d85714f73c247131b541405cf0bf24581b Mon Sep 17 00:00:00 2001
From: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date: Thu, 23 Feb 2017 16:24:08 +0000
Subject: [PATCH] Make pcretest check size of \O argument.
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git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1686 2f5784b3-3f2a-0410-8824-cb99058d5e15

Petr Písař: Ported to 8.40.

diff --git a/pcretest.c b/pcretest.c
index 797f99c..0a153be 100644
--- a/pcretest.c
+++ b/pcretest.c
@@ -4834,7 +4834,16 @@ while (!done)
         continue;
 
         case 'O':
-        while(isdigit(*p)) n = n * 10 + *p++ - '0';
+        while(isdigit(*p)) 
+          {
+          if (n > (INT_MAX-10)/10)   /* Hack to stop fuzzers */
+            {
+            printf("** \\O argument is too big\n");
+            yield = 1;
+            goto EXIT;   
+            }  
+          n = n * 10 + *p++ - '0';
+          } 
         if (n > size_offsets_max)
           {
           size_offsets_max = n;
-- 
2.7.4