nobu	2014-05-16 17:22:41 +0900 (Fri, 16 May 2014)

  New Revision: 45957

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=45957

  Log:
    dir.c: check boundary
    
    * dir.c (glob_make_pattern): check boundary before accessing.

  Modified files:
    trunk/dir.c
Index: dir.c
===================================================================
--- dir.c	(revision 45956)
+++ dir.c	(revision 45957)
@@ -1200,7 +1200,7 @@ glob_make_pattern(const char *p, const c https://github.com/ruby/ruby/blob/trunk/dir.c#L1200
     while (p < e && *p) {
 	tmp = GLOB_ALLOC(struct glob_pattern);
 	if (!tmp) goto error;
-	if (p[0] == '*' && p[1] == '*' && p[2] == '/') {
+	if (p + 2 < e && p[0] == '*' && p[1] == '*' && p[2] == '/') {
 	    /* fold continuous RECURSIVEs (needed in glob_helper) */
 	    do { p += 3; while (*p == '/') p++; } while (p[0] == '*' && p[1] == '*' && p[2] == '/');
 	    tmp->type = RECURSIVE;

--
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