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Message-Id: <20200210122435.937231452@linuxfoundation.org>
Date: Mon, 10 Feb 2020 04:34:18 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Ronnie Sahlberg <lsahlber@...hat.com>,
Steve French <stfrench@...rosoft.com>
Subject: [PATCH 5.4 302/309] cifs: fail i/o on soft mounts if sessionsetup errors out
From: Ronnie Sahlberg <lsahlber@...hat.com>
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 <lsahlber@...hat.com>
Signed-off-by: Steve French <stfrench@...rosoft.com>
CC: Stable <stable@...r.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
fs/cifs/smb2pdu.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -350,9 +350,14 @@ smb2_reconnect(__le16 smb2_command, stru
}
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;
@@ -397,6 +402,7 @@ out:
case SMB2_SET_INFO:
rc = -EAGAIN;
}
+failed:
unload_nls(nls_codepage);
return rc;
}
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