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 0ED943033E8; Mon, 20 Jul 2026 09:05:12 +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=1784538314; cv=none; b=h1O3539z7c0N0fElFy/JmcIA8Nu4hWE+1Hh1d41PO40yHzyZZ/xt/j7e1Kfmu0gmXezq6ZN9mub118b5vYGcsviPrh/sjWpnvGNLYlvS5uBqYmv8hb2wLxydJZS373uJDEarL37xxesG4w8+dwRwFOvyVXHPwp1AdK/zeMdt1cI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784538314; c=relaxed/simple; bh=8g5BgA9mURecCv/apzQ2hLH2SYMpF55oRQsaZ2DgY7Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sCDXhHD4ce74YLqmPDExJeZbnWUTpYGCuO7aN2sxlzT56BcVT4Wwetjdy+cl5Dl9Vms5GoNf5unJiYrLgbpna5/oFlB+gtzodDENRjbK1EC116Jhe2FTTm0GxWBGWOq4kmd064qmy2mrmgy8C1+GcvBHdM1fj6sjMRupSxUVei0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AVW1dtxS; 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="AVW1dtxS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D19731F000E9; Mon, 20 Jul 2026 09:05:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784538312; bh=VICvrkHJ76P3bbcz027VoiEo6h6DpXS/23ki+zkvasE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=AVW1dtxShDB7yvxNE2U1Xk8Tx8XDX8xkJi7Wvpt5y8Dstpsy50aKDpEI4+xRAReaj Z+fXJqPvkfF25zDXimvrFQK8mVX8oyxQEHnFa8JPyHRpdgMh57TlaMkSL3rAhNdh12 XZHDp/EHkoDmWkE6dBcAZH9JRGX3sVJIfUbYCbZzwbkG4PR93JgCqWNWepe5piKDcm SG7nmtLxPdTHhOs0+D+KMdE66mu3BeLZgq59ast5siiF6P1zBwy/DRlsnCUExNeo/q kY/AM9aFxxVxAtdCBy3H6jea5mbvVgCmpVOScQxO+y8ZBIRFnl7kzFKsT4HSkwEqg/ TlKuCh+znfTfw== 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 v12 06/21] fsverity: don't allow setting DAX file attribute on fsverity files Date: Mon, 20 Jul 2026 11:03:34 +0200 Message-ID: <20260720090410.3487990-7-aalbersh@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260720090410.3487990-1-aalbersh@kernel.org> References: <20260720090410.3487990-1-aalbersh@kernel.org> Precedence: bulk X-Mailing-List: linux-xfs@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