From 68c395576813b3f9812427f94d272bcffaca316c Mon Sep 17 00:00:00 2001
From: "K.Kosako" <kkosako0@gmail.com>
Date: Sat, 27 Aug 2016 00:00:35 +0900
Subject: [PATCH] fix out of bounds read by /(?</ (found by libfuzzer)

---
 src/regparse.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/regparse.c b/src/regparse.c
index 1323328..9514e50 100644
--- a/src/regparse.c
+++ b/src/regparse.c
@@ -4465,6 +4465,7 @@ parse_enclose(Node** np, OnigToken* tok, int term, UChar** src, UChar* end,
 #endif
 
     case '<':   /* look behind (?<=...), (?<!...) */
+      if (PEND) return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS;
       PFETCH(c);
       if (c == '=')
         *np = onig_node_new_anchor(ANCHOR_LOOK_BEHIND);
-- 
2.40.0