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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 ACA84C2BA83 for ; Thu, 13 Feb 2020 16:04:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F9532073C for ; Thu, 13 Feb 2020 16:04:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581609846; bh=RKKb/C9mxcMwscJPK+XW7IOIY8L/zMq2chZNUwE3UTg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=2UnhYchPt6ngr1ri7PEyUHPWCUNRCtrjMoVAh6wZnHZ2pIFGdCl2l46nKjEN/E3DD DB60pzuQST2rOoha/28gp9Ls0Hhsna/jh+TL8EDqJ3d0i/1P9vZVFTcPdnWpRgcu4Q gtOV16MtrUYllQRN8x1e813LGZ5/CldfPj1xkL4g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728627AbgBMQD7 (ORCPT ); Thu, 13 Feb 2020 11:03:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:36966 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728615AbgBMPYK (ORCPT ); Thu, 13 Feb 2020 10:24:10 -0500 Received: from localhost (unknown [104.132.1.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B915324689; Thu, 13 Feb 2020 15:24:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581607449; bh=RKKb/C9mxcMwscJPK+XW7IOIY8L/zMq2chZNUwE3UTg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a3P039h2IziMgZOwJxwffRndGuG/+MfLjkjiQZawDNnrx1jl+Z4CS94MMRqKI9lL7 eHQPB8dhp3uYjdRvz49TkxP44xWEErZbpv1B+ifIOj0OG10AMdm9lz64bEzuGyaxnN OiUPkr7kvULjGzkx7dm8JDffSz7J7CsH4rqLko40= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ronnie Sahlberg , Steve French Subject: [PATCH 4.9 093/116] cifs: fail i/o on soft mounts if sessionsetup errors out Date: Thu, 13 Feb 2020 07:20:37 -0800 Message-Id: <20200213151919.097142220@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200213151842.259660170@linuxfoundation.org> References: <20200213151842.259660170@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ronnie Sahlberg commit b0dd940e582b6a60296b9847a54012a4b080dc72 upstream. RHBZ: 1579050 If we have a soft mount we should fail commands for session-setup failures (such as the password having changed/ account being deleted/ ...) and return an error back to the application. Signed-off-by: Ronnie Sahlberg Signed-off-by: Steve French CC: Stable Signed-off-by: Greg Kroah-Hartman --- fs/cifs/smb2pdu.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -247,9 +247,14 @@ smb2_reconnect(__le16 smb2_command, stru */ mutex_lock(&tcon->ses->session_mutex); rc = cifs_negotiate_protocol(0, tcon->ses); - if (!rc && tcon->ses->need_reconnect) + if (!rc && tcon->ses->need_reconnect) { rc = cifs_setup_session(0, tcon->ses, nls_codepage); - + if ((rc == -EACCES) && !tcon->retry) { + rc = -EHOSTDOWN; + mutex_unlock(&tcon->ses->session_mutex); + goto failed; + } + } if (rc || !tcon->need_reconnect) { mutex_unlock(&tcon->ses->session_mutex); goto out; @@ -291,6 +296,7 @@ out: case SMB2_SET_INFO: rc = -EAGAIN; } +failed: unload_nls(nls_codepage); return rc; }