From patchwork Tue Nov 3 15:17:20 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Gruenbacher X-Patchwork-Id: 7544101 Return-Path: X-Original-To: patchwork-cifs-client@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2E44CBF90C for ; Tue, 3 Nov 2015 15:32:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 69D40203E3 for ; Tue, 3 Nov 2015 15:32:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EED32206FB for ; Tue, 3 Nov 2015 15:32:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964960AbbKCPWq (ORCPT ); Tue, 3 Nov 2015 10:22:46 -0500 Received: from mx1.redhat.com ([209.132.183.28]:55733 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751844AbbKCPWo (ORCPT ); Tue, 3 Nov 2015 10:22:44 -0500 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 8363242E5A7; Tue, 3 Nov 2015 15:22:43 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaA029477; Tue, 3 Nov 2015 10:22:37 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 44/51] xfs: Don't allow unmapped identifiers in richacls Date: Tue, 3 Nov 2015 16:17:20 +0100 Message-Id: <1446563847-14005-45-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Don't allow acls which contain unmapped identifiers: they are meaningful for remote file systems only. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_richacl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/xfs/xfs_richacl.c b/fs/xfs/xfs_richacl.c index f8f5a62..4a2e21a 100644 --- a/fs/xfs/xfs_richacl.c +++ b/fs/xfs/xfs_richacl.c @@ -78,6 +78,10 @@ __xfs_set_richacl(struct inode *inode, struct richacl *acl, int xflags) if (!acl) return xfs_remove_richacl(inode); + /* Don't allow acls with unmapped identifiers. */ + if (richacl_has_unmapped_identifiers(acl)) + return -EINVAL; + if (richacl_equiv_mode(acl, &mode) == 0) { xfs_set_mode(inode, mode); return xfs_remove_richacl(inode);