https://git.ruby-lang.org/ruby.git/commit/?id=a5ecf7e0a1

From a5ecf7e0a165dff1b4604f1ed75a677c690488df Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@r...>
Date: Sun, 13 Oct 2019 00:51:50 +0900
Subject: dir.c (join_path_from_pattern): check NULL from malloc

Coverity Scan points out that all the return values of GLOB_ALLOC_N are
NULL-checked except this call.

diff --git a/dir.c b/dir.c
index e98fa25..5221490 100644
--- a/dir.c
+++ b/dir.c
@@ -2072,8 +2072,10 @@ join_path_from_pattern(struct glob_pattern **beg) https://github.com/ruby/ruby/blob/trunk/dir.c#L2072
 	if (!path) {
 	    path_len = strlen(str);
 	    path = GLOB_ALLOC_N(char, path_len + 1);
-	    memcpy(path, str, path_len);
-	    path[path_len] = '\0';
+            if (path) {
+                memcpy(path, str, path_len);
+                path[path_len] = '\0';
+            }
         }
         else {
 	    size_t len = strlen(str);
-- 
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