From owner-svn-src-stable-11@freebsd.org  Mon May  1 00:42:33 2017
Return-Path: <owner-svn-src-stable-11@freebsd.org>
Delivered-To: svn-src-stable-11@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 28487D45823;
 Mon,  1 May 2017 00:42:33 +0000 (UTC) (envelope-from pfg@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id EC0F13D7;
 Mon,  1 May 2017 00:42:32 +0000 (UTC) (envelope-from pfg@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v410gVhe057450;
 Mon, 1 May 2017 00:42:31 GMT (envelope-from pfg@FreeBSD.org)
Received: (from pfg@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id v410gVSO057449;
 Mon, 1 May 2017 00:42:31 GMT (envelope-from pfg@FreeBSD.org)
Message-Id: <201705010042.v410gVSO057449@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: pfg set sender to pfg@FreeBSD.org
 using -f
From: "Pedro F. Giffuni" <pfg@FreeBSD.org>
Date: Mon, 1 May 2017 00:42:31 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org
Subject: svn commit: r317613 - stable/11/lib/libc/gen
X-SVN-Group: stable-11
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-stable-11@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: SVN commit messages for only the 11-stable src tree
 <svn-src-stable-11.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-stable-11>, 
 <mailto:svn-src-stable-11-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable-11/>
List-Post: <mailto:svn-src-stable-11@freebsd.org>
List-Help: <mailto:svn-src-stable-11-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-stable-11>, 
 <mailto:svn-src-stable-11-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 01 May 2017 00:42:33 -0000

Author: pfg
Date: Mon May  1 00:42:31 2017
New Revision: 317613
URL: https://svnweb.freebsd.org/changeset/base/317613

Log:
  MFC r317372:
  scandir(3): promote arraysz to size_t to match numitems.
  
  The internal array size goes through a loop and is compared with numitems
  which at its limits makes can be unreachably higher than arraysz.
  Prevent an hypothetical overflow, and signed/unsigned comparison, by
  matching the types.

Modified:
  stable/11/lib/libc/gen/scandir.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/lib/libc/gen/scandir.c
==============================================================================
--- stable/11/lib/libc/gen/scandir.c	Sun Apr 30 22:38:15 2017	(r317612)
+++ stable/11/lib/libc/gen/scandir.c	Mon May  1 00:42:31 2017	(r317613)
@@ -82,8 +82,7 @@ scandir(const char *dirname, struct dire
 #endif
 {
 	struct dirent *d, *p, **names = NULL;
-	size_t numitems;
-	long arraysz;
+	size_t arraysz, numitems;
 	DIR *dirp;
 
 	if ((dirp = opendir(dirname)) == NULL)