From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83555C4BA0A for ; Tue, 25 Feb 2020 23:10:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 47EC221927 for ; Tue, 25 Feb 2020 23:10:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="UzrX6hAm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729182AbgBYXKO (ORCPT ); Tue, 25 Feb 2020 18:10:14 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:53218 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728989AbgBYXKN (ORCPT ); Tue, 25 Feb 2020 18:10:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=4mPP/ff5n2vZ4KoU4urQYSn7o751n+nX5PbXfXPmoHg=; b=UzrX6hAm5l0+zxt/ME1Cl8mJdy LX4Ya95pTjN8wRhvyYO4Q6sUqT5GQAXGflta5dxPi4yFikS2jl7sB8OgvHyg+9Bd8yE7P7H6/Xz1P /L69xjXSly8AT33GEDV4WRVbrntJ3mITnVUNrxaJvGlIe1nxQcoDwkhM+HCIqYy/h5UXV1r/1aEsR /iyqXexA9iOwApVRPgbiKCPZ0fRDGqZ0CRsoECDMkyE5rza+hTfOopwGKWlxR+hOVMWPWFlo6vWZt GQE8RSfuFvvBXxkg3LNWMk+aoF2dBU5BN6nrW8AyaBZNIiPHP8gVYEswOQ+6YqtcH2f94o4FXvEes QqcKkXLw==; Received: from [4.28.11.157] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6jLB-00035L-2q; Tue, 25 Feb 2020 23:10:13 +0000 From: Christoph Hellwig To: linux-xfs@vger.kernel.org Cc: Dave Chinner , Chandan Rajendra , "Darrick J . Wong" Subject: [PATCH 01/30] xfs: reject invalid flags combinations in XFS_IOC_ATTRLIST_BY_HANDLE Date: Tue, 25 Feb 2020 15:09:43 -0800 Message-Id: <20200225231012.735245-2-hch@lst.de> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200225231012.735245-1-hch@lst.de> References: <20200225231012.735245-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org While the flags field in the ABI and the on-disk format allows for multiple namespace flags, an attribute can only exist in a single namespace at a time. Hence asking to list attributes that exist in multiple namespaces simultaneously is a logically invalid request and will return no results. Reject this case early with -EINVAL. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Reviewed-by: Chandan Rajendra Reviewed-by: Darrick J. Wong --- fs/xfs/xfs_ioctl.c | 2 ++ fs/xfs/xfs_ioctl32.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index d42de92cb283..d974bf099d45 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -317,6 +317,8 @@ xfs_attrlist_by_handle( */ if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) return -EINVAL; + if (al_hreq.flags == (ATTR_ROOT | ATTR_SECURE)) + return -EINVAL; dentry = xfs_handlereq_to_dentry(parfilp, &al_hreq.hreq); if (IS_ERR(dentry)) diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c index 769581a79c58..9705172e5410 100644 --- a/fs/xfs/xfs_ioctl32.c +++ b/fs/xfs/xfs_ioctl32.c @@ -375,6 +375,8 @@ xfs_compat_attrlist_by_handle( */ if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) return -EINVAL; + if (al_hreq.flags == (ATTR_ROOT | ATTR_SECURE)) + return -EINVAL; dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq); if (IS_ERR(dentry)) -- 2.24.1