[CIFS] Turn off Unicode during session establishment for plaintext authentication

LANMAN session setup did not support Unicode (after session setup, unicode can
still be used though).

Fixes samba bug# 5319

CC: Jeff Layton <jlayton@redhat.com>
CC: Stable Kernel <stable@vger.kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index b537fad3bf50684c2b3405df74a69ea9dd9e29a3..252fdc0567f1aa186f36f8c68d83f259d6db4ee0 100644 (file)
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -409,6 +409,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
                char lnm_session_key[CIFS_SESS_KEY_SIZE];
 
+               pSMB->req.hdr.Flags2 &= ~SMBFLG2_UNICODE;
+
                /* no capabilities flags in old lanman negotiation */
 
                pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE);