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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8101DC54EE9 for ; Fri, 2 Sep 2022 13:33:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236634AbiIBNdH (ORCPT ); Fri, 2 Sep 2022 09:33:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236605AbiIBNcj (ORCPT ); Fri, 2 Sep 2022 09:32:39 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF8231166F1; Fri, 2 Sep 2022 06:11:56 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id BFC66B82AA0; Fri, 2 Sep 2022 12:34:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F66EC433D7; Fri, 2 Sep 2022 12:34:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1662122084; bh=y6yjcDAQIF/vTOtSaLQE2XI/MgtWHSZ9+6YQP0ofuCg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nhZef+Wh69GKqbD+xm55mmdxeCdUr7YkdKFG9YGyTMzv7W3FcIgBee2QmfwDKvS9l o0r6VdAN7qehtaZnFVeZyYFqJzUbhIUzY80OwVzP0H194sSDbywLVZva2lBzoTy4R9 qikSbQnIF7tCSLVhFv6AlbhlSFR0enpVGEA+kZo8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Namjae Jeon , Hyunchul Lee , Steve French , Sasha Levin Subject: [PATCH 5.15 59/73] ksmbd: dont remove dos attribute xattr on O_TRUNC open Date: Fri, 2 Sep 2022 14:19:23 +0200 Message-Id: <20220902121406.369495113@linuxfoundation.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220902121404.435662285@linuxfoundation.org> References: <20220902121404.435662285@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Namjae Jeon [ Upstream commit 17661ecf6a64eb11ae7f1108fe88686388b2acd5 ] When smb client open file in ksmbd share with O_TRUNC, dos attribute xattr is removed as well as data in file. This cause the FSCTL_SET_SPARSE request from the client fails because ksmbd can't update the dos attribute after setting ATTR_SPARSE_FILE. And this patch fix xfstests generic/469 test also. Signed-off-by: Namjae Jeon Reviewed-by: Hyunchul Lee Signed-off-by: Steve French Signed-off-by: Sasha Levin --- fs/ksmbd/smb2pdu.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index 824f17a101a9e..55ee639703ff0 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -2319,15 +2319,15 @@ static int smb2_remove_smb_xattrs(struct path *path) name += strlen(name) + 1) { ksmbd_debug(SMB, "%s, len %zd\n", name, strlen(name)); - if (strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) && - strncmp(&name[XATTR_USER_PREFIX_LEN], DOS_ATTRIBUTE_PREFIX, - DOS_ATTRIBUTE_PREFIX_LEN) && - strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, STREAM_PREFIX_LEN)) - continue; - - err = ksmbd_vfs_remove_xattr(user_ns, path->dentry, name); - if (err) - ksmbd_debug(SMB, "remove xattr failed : %s\n", name); + if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) && + !strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, + STREAM_PREFIX_LEN)) { + err = ksmbd_vfs_remove_xattr(user_ns, path->dentry, + name); + if (err) + ksmbd_debug(SMB, "remove xattr failed : %s\n", + name); + } } out: kvfree(xattr_list); -- 2.35.1