linux-kernel - [PATCH 4.20 055/171] cifs: fix computation for MAX_SMB2_HDR

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Message-Id: <20190312170352.872809191@linuxfoundation.org>
Date:   Tue, 12 Mar 2019 10:07:15 -0700
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>,
        Pavel Shilovsky <pshilov@...rosoft.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.20 055/171] cifs: fix computation for MAX_SMB2_HDR_SIZE

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

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

[ Upstream commit 58d15ed1203f4d858c339ea4d7dafa94bd2a56d3 ]

The size of the fixed part of the create response is 88 bytes not 56.

Signed-off-by: Ronnie Sahlberg <lsahlber@...hat.com>
Signed-off-by: Steve French <stfrench@...rosoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@...rosoft.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/cifs/smb2pdu.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 5671d5ee7f58..eaf39fb71f8b 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -84,8 +84,8 @@
 
 #define NUMBER_OF_SMB2_COMMANDS	0x0013
 
-/* 4 len + 52 transform hdr + 64 hdr + 56 create rsp */
-#define MAX_SMB2_HDR_SIZE 0x00b0
+/* 52 transform hdr + 64 hdr + 88 create rsp */
+#define MAX_SMB2_HDR_SIZE 204
 
 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
-- 
2.19.1