linux-kernel - [PATCH 4.16 33/64] CIFS: 511c54a2f69195b28afb9dd119f03787b1625bb4 adds a check for session expiry

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Date:   Sun, 24 Jun 2018 23:22:14 +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, Mark Syms <mark.syms@...rix.com>,
        Steve French <stfrench@...rosoft.com>
Subject: [PATCH 4.16 33/64] CIFS: 511c54a2f69195b28afb9dd119f03787b1625bb4 adds a check for session expiry

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mark Syms <mark.syms@...rix.com>

commit d81243c697ffc71f983736e7da2db31a8be0001f upstream.

Handle this additional status in the same way as SESSION_EXPIRED.

Signed-off-by: Mark Syms <mark.syms@...rix.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/smb2ops.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1277,10 +1277,11 @@ smb2_is_session_expired(char *buf)
 {
 	struct smb2_sync_hdr *shdr = get_sync_hdr(buf);
 
-	if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED)
+	if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED &&
+	    shdr->Status != STATUS_USER_SESSION_DELETED)
 		return false;
 
-	cifs_dbg(FYI, "Session expired\n");
+	cifs_dbg(FYI, "Session expired or deleted\n");
 	return true;
 }