From: Jeff Layton <jlayton@redhat.com>
Date: Sun, 23 Feb 2014 00:35:38 +0000 (-0500)
Subject: cifs: mask off top byte in get_rfc1002_length()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=dca1c8d17a2feae056f9e334ea75a462ae4cb52a;p=linux-beck.git

cifs: mask off top byte in get_rfc1002_length()

The rfc1002 length actually includes a type byte, which we aren't
masking off. In most cases, it's not a problem since the
RFC1002_SESSION_MESSAGE type is 0, but when doing a RFC1002 session
establishment, the type is non-zero and that throws off the returned
length.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Tested-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index cf32f0393369..c0f3718b77a8 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -513,7 +513,7 @@ struct cifs_mnt_data {
 static inline unsigned int
 get_rfc1002_length(void *buf)
 {
-	return be32_to_cpu(*((__be32 *)buf));
+	return be32_to_cpu(*((__be32 *)buf)) & 0xffffff;
 }
 
 static inline void