cifs: Fix regression during share-level security mounts (Repost)

NTLM response length was changed to 16 bytes instead of 24 bytes
that are sent in Tree Connection Request during share-level security
share mounts.  Revert it back to 24 bytes.

Reported-and-Tested-by: Grzegorz Ozanski <grzegorz.ozanski@intel.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Acked-by: Suresh Jayaraman <sjayaraman@suse.de>
Cc: stable@kernel.org
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 465ecad6d7ccc0db79d8cd56bbfbc61043ffb9b1..5c7f8450dbe03ac1d20664d9d0d07567ff27d95a 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2927,7 +2927,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
                bcc_ptr++;              /* skip password */
                /* already aligned so no need to do it below */
        } else {
-               pSMB->PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE);
+               pSMB->PasswordLength = cpu_to_le16(CIFS_AUTH_RESP_SIZE);
                /* BB FIXME add code to fail this if NTLMv2 or Kerberos
                   specified as required (when that support is added to
                   the vfs in the future) as only NTLM or the much
@@ -2945,7 +2945,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 #endif /* CIFS_WEAK_PW_HASH */
                SMBNTencrypt(tcon->password, ses->server->cryptkey, bcc_ptr);
 
-               bcc_ptr += CIFS_SESS_KEY_SIZE;
+               bcc_ptr += CIFS_AUTH_RESP_SIZE;
                if (ses->capabilities & CAP_UNICODE) {
                        /* must align unicode strings */
                        *bcc_ptr = 0; /* null byte password */