From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A06743AB498; Fri, 10 Jul 2026 08:53:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783673623; cv=none; b=RI4VmeKI5LjX6ctkRib20MMv9/3dwZcnqRifgwy6eMcdZN9wKskhKPO+TDG8xpcMnx8h/btIfINse4HB5xqiFdnh1Bn+XdOaxxf+V68PbNsnswtU/p5Fyw/9Oky+gJwI3rpYHSyr4i4e+CQgolA+pSla4R+si5eJw+lzrXQFbNg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783673623; c=relaxed/simple; bh=8g5BgA9mURecCv/apzQ2hLH2SYMpF55oRQsaZ2DgY7Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gZx0tUkHIHe0O0nMQwXCSYT4bnVHK3wTjXVElHaCL7p2siOtzTea8BMsBd0u36Serz3vss9tkiGVbHgEzd7RNlKJuKbjAPN/WnAWa24U8w+3DfS11IsGsNh7w/ou64/kurt1nH0eEG5Xoo5Ddgi2jLlnWYtZ9aCgeZ5ajmTZruw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Pol/abMS; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Pol/abMS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0C01C1F00A3A; Fri, 10 Jul 2026 08:53:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783673622; bh=VICvrkHJ76P3bbcz027VoiEo6h6DpXS/23ki+zkvasE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Pol/abMS6ySkJ4PqqvJwcwpqSGWEVT90r/FwswEBZceAtfieFJ5j/QhoLAQHHpaU5 ufrPV0oVuJbMIbzd1F8j5yvdZ7B9pOgRXiqbQqGH8MkuaRWeQcFKq5GkGMgoUwScGj qoN8uJq1hQfVh0SxYUZqstF6NgpEpbxH2UzZKj42uj0skyfNs05gUgokl95NkSxC55 xOeJiscFouAnS5zcnKZtIDXb4Obe5+0fUPbNfIVgEn3/8wp8xCM1ZqtQzIyirHpSLw s3g3d+YkgXr89PfQgmdqekgX5idBQHPmKTrRWyU59CBMKRuJvhnTg7eyyHdDBfxpUF c5ECCMOB2oTMQ== From: Andrey Albershteyn To: linux-xfs@vger.kernel.org, fsverity@lists.linux.dev, linux-fsdevel@vger.kernel.org, ebiggers@kernel.org Cc: Andrey Albershteyn , hch@lst.de, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-btrfs@vger.kernel.org, djwong@kernel.org Subject: [PATCH v11 06/20] fsverity: don't allow setting DAX file attribute on fsverity files Date: Fri, 10 Jul 2026 10:52:34 +0200 Message-ID: <20260710085256.3464201-7-aalbersh@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260710085256.3464201-1-aalbersh@kernel.org> References: <20260710085256.3464201-1-aalbersh@kernel.org> Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit When fsverity is enabled on the file, with FS_IOC_ENABLE_VERITY ioctl(), it checks if file has DAX enabled and fails if that's true. However, the opposite case is not checked. Signed-off-by: Andrey Albershteyn --- fs/file_attr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/file_attr.c b/fs/file_attr.c index bfb00d256dd5..5424ec4e3949 100644 --- a/fs/file_attr.c +++ b/fs/file_attr.c @@ -246,6 +246,11 @@ static int fileattr_set_prepare(struct inode *inode, if (fa->fsx_cowextsize == 0) fa->fsx_xflags &= ~FS_XFLAG_COWEXTSIZE; + /* Can not enable DAX on fsverity file */ + if ((old_ma->fsx_xflags & FS_XFLAG_VERITY) && + fa->fsx_xflags & FS_XFLAG_DAX) + return -EINVAL; + return 0; } -- 2.54.0