From 1aa76cb33f04fcea3127a0859450e5d18369e5e2 Mon Sep 17 00:00:00 2001
From: zherczeg <zherczeg@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date: Fri, 21 Sep 2018 07:34:10 +0000
Subject: [PATCH] Fix subject buffer overread in JIT.
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git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1740 2f5784b3-3f2a-0410-8824-cb99058d5e15
Petr Písař: Ported to 8.42.
---
 pcre_jit_compile.c | 2 +-

diff --git a/pcre_jit_compile.c b/pcre_jit_compile.c
index 2bad74b..bc5f9c0 100644
--- a/pcre_jit_compile.c
+++ b/pcre_jit_compile.c
@@ -9002,7 +9002,7 @@ if (exact > 1)
 #ifdef SUPPORT_UTF
       && !common->utf
 #endif
-      )
+      && type != OP_ANYNL && type != OP_EXTUNI)
     {
     OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(exact));
     add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_GREATER, TMP1, 0, STR_END, 0));
-- 
2.17.2