commit a159b53fa059947cc2548e3b0d5bdcf7b9630ba8
Author: Paul Eggert <eggert@cs.ucla.edu>
Date:   Sun Oct 22 10:00:57 2017 +0200

    glob: Fix buffer overflow during GLOB_TILDE unescaping [BZ #22332]

CVE-2017-15804 was assigned to this issue after commit.

diff --git a/posix/glob.c b/posix/glob.c
index 15cf3d5cccab0ee0..e09314712d68c1b8 100644
--- a/posix/glob.c
+++ b/posix/glob.c
@@ -806,11 +806,11 @@ glob (pattern, flags, errfunc, pglob)
 		  char *p = mempcpy (newp, dirname + 1,
 				     unescape - dirname - 1);
 		  char *q = unescape;
-		  while (*q != '\0')
+		  while (q != end_name)
 		    {
 		      if (*q == '\\')
 			{
-			  if (q[1] == '\0')
+			  if (q + 1 == end_name)
 			    {
 			      /* "~fo\\o\\" unescape to user_name "foo\\",
 				 but "~fo\\o\\/" unescape to user_name