From owner-svn-src-stable-11@freebsd.org Mon Oct 10 11:51:48 2016 Return-Path: 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 B54D5C0B2AB; Mon, 10 Oct 2016 11:51:48 +0000 (UTC) (envelope-from tijl@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 8361E986; Mon, 10 Oct 2016 11:51:48 +0000 (UTC) (envelope-from tijl@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u9ABplmb052789; Mon, 10 Oct 2016 11:51:47 GMT (envelope-from tijl@FreeBSD.org) Received: (from tijl@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u9ABplsw052788; Mon, 10 Oct 2016 11:51:47 GMT (envelope-from tijl@FreeBSD.org) Message-Id: <201610101151.u9ABplsw052788@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: tijl set sender to tijl@FreeBSD.org using -f From: Tijl Coosemans Date: Mon, 10 Oct 2016 11:51:47 +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: r306960 - stable/11/sys/i386/i386 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Oct 2016 11:51:48 -0000 Author: tijl Date: Mon Oct 10 11:51:47 2016 New Revision: 306960 URL: https://svnweb.freebsd.org/changeset/base/306960 Log: MFC: r306318 Allocate a zeroed LDT. Failing to do this might result in the LDT appearing to run out of free descriptors because of random junk in the descriptor's 'sd_type' field. http://lists.freebsd.org/pipermail/freebsd-amd64/2014-May/016088.html PR: 212639 Submitted by: wheelcomplex@gmail.com Modified: stable/11/sys/i386/i386/sys_machdep.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/i386/i386/sys_machdep.c ============================================================================== --- stable/11/sys/i386/i386/sys_machdep.c Mon Oct 10 11:49:43 2016 (r306959) +++ stable/11/sys/i386/i386/sys_machdep.c Mon Oct 10 11:51:47 2016 (r306960) @@ -438,7 +438,7 @@ user_ldt_alloc(struct mdproc *mdp, int l new_ldt->ldt_len = len = NEW_MAX_LD(len); new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_arena, - len * sizeof(union descriptor), M_WAITOK); + len * sizeof(union descriptor), M_WAITOK | M_ZERO); new_ldt->ldt_refcnt = 1; new_ldt->ldt_active = 0;