--- fs/cifs/sess.c

+++ fs/cifs/sess.c

@@ -906,7 +906,9 @@ ssetup_ntlmssp_authenticate:

}

/* BB check if Unicode and decode strings */

- if (smb_buf->Flags2 & SMBFLG2_UNICODE) {

+ if (bytes_remaining == 0) {

+ /* no string area to decode, do nothing */

+ } else if (smb_buf->Flags2 & SMBFLG2_UNICODE) {

/* unicode string area must be word-aligned */

if (((unsigned long) bcc_ptr - (unsigned long) smb_buf) % 2) {

++bcc_ptr;