Patch "CIFS: Fix maximum SMB2 header size" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

CIFS: Fix maximum SMB2 header size

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
cifs-fix-maximum-smb2-header-size.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Pavel Shilovsky <[email protected]>
Date: Thu, 24 Aug 2017 15:16:40 -0700
Subject: CIFS: Fix maximum SMB2 header size

From: Pavel Shilovsky <[email protected]>

commit 9e37b1784f2be9397a903307574ee565bbadfd75 upstream.

Currently the maximum size of SMB2/3 header is set incorrectly which leads to hanging of directory listing operations on encrypted SMB3 connections. Fix this by setting the maximum size to 170 bytes that is calculated as RFC1002 length field size (4) + transform header size (52) + SMB2 header size (64) + create response size (56).

---
 fs/cifs/smb2pdu.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

@@ -84,8 +84,8 @@
 
 #define NUMBER_OF_SMB2_COMMANDS	0x0013
 
-/* BB FIXME - analyze following length BB */
-#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
+/* 4 len + 52 transform hdr + 64 hdr + 56 create rsp */
+#define MAX_SMB2_HDR_SIZE 0x00b0
 
 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/cifs-fix-maximum-smb2-header-size.patch queue-4.9/cifs-remove-endian-related-sparse-warning.patch