From: Alexander Borisov <alexander.borisov@nginx.com>
Date: Thu, 11 Jul 2019 12:42:33 +0000 (+0300)
Subject: Fixed used of uninitialized memory in String.prototype.match().
X-Git-Url: http://git.kaiwu.me/sitemap.xml?a=commitdiff_plain;h=207f656e8f6524e7a499d2dcb9353d327fdfb45f;p=njs.git

Fixed used of uninitialized memory in String.prototype.match().
---

diff --git a/njs/njs_string.c b/njs/njs_string.c
index 644031c3..b6a21a54 100644
--- a/njs/njs_string.c
+++ b/njs/njs_string.c
@@ -2734,8 +2734,14 @@ njs_string_match_multiple(njs_vm_t *vm, njs_value_t *args,
             start = p + captures[0];
 
             if (captures[1] == 0) {
-                p = nxt_utf8_next(start, end);
-                string.size = end - p;
+                if (start < end) {
+                    p = nxt_utf8_next(start, end);
+                    string.size = end - p;
+
+                } else {
+                    /* To exit the loop. */
+                    p++;
+                }
 
                 size = 0;
                 length = 0;