From: K.Kosako <kosako@sofnec.co.jp>
Date: Tue, 10 Apr 2018 00:08:33 +0000 (+0900)
Subject: fix #87: Read unknown address in onig_error_code_to_str()
X-Git-Tag: v6.8.2^2~16
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=850bd9b0d8186eb1637722b46b12656814ab4ad2;p=onig

fix #87: Read unknown address in onig_error_code_to_str()
---

diff --git a/src/regparse.c b/src/regparse.c
index 6e95a14..f96180f 100644
--- a/src/regparse.c
+++ b/src/regparse.c
@@ -5341,8 +5341,11 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env)
           if (num_type != IS_NOT_NUM) {
             if (num_type == IS_REL_NUM) {
               gnum = backref_rel_to_abs(gnum, env);
-              if (gnum < 0)
+              if (gnum < 0) {
+                onig_scan_env_set_error_string(env, ONIGERR_UNDEFINED_NAME_REFERENCE,
+                                               prev, name_end);
                 return ONIGERR_UNDEFINED_GROUP_REFERENCE;
+              }
             }
             tok->u.call.by_number = 1;
             tok->u.call.gnum      = gnum;
@@ -5563,8 +5566,11 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env)
                 else {
                   if (num_type == IS_REL_NUM) {
                     gnum = backref_rel_to_abs(gnum, env);
-                    if (gnum < 0)
+                    if (gnum < 0) {
+                      onig_scan_env_set_error_string(env,
+                             ONIGERR_UNDEFINED_NAME_REFERENCE, name, name_end);
                       return ONIGERR_UNDEFINED_GROUP_REFERENCE;
+                    }
                   }
                   tok->u.call.by_number = 1;
                   tok->u.call.gnum      = gnum;