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From 31532982b04c20a43aa9c3d26780e3591c524fbc Mon Sep 17 00:00:00 2001
From: Karl Williamson <khw@cpan.org>
Date: Thu, 27 Jun 2019 15:39:11 -0600
Subject: [PATCH] regcomp.c: Don't read off the end of buffer
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Until this commit, it was possible that \p{nv=3/} would cause the right
brace to be considered part of the property name.

Spotted by Hugo van der Sanden

Signed-off-by: Petr Písař <ppisar@redhat.com>
---
 regcomp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/regcomp.c b/regcomp.c
index 1117998fc8..cf9246473f 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -23092,7 +23092,9 @@ Perl_parse_uniprop_string(pTHX_
             }
 
             /* Store the first real character in the denominator */
-            lookup_name[j++] = name[i];
+            if (i < name_len) {
+                lookup_name[j++] = name[i];
+            }
         }
     }
 
-- 
2.21.0