[PATCH 3.16 221/305] cifs: use CIFS_MAX_DOMAINNAME_LEN when converting the domain name

Ben Hutchings
2016-08-14T11:19:29Z

From: Jerome Marchand <jmarchan@redhat.com>

commit 202d772ba02b1deb8835a631cd8255943d1906a0 upstream.

Currently in build_ntlmssp_auth_blob(), when converting the domain
name to UTF16, CIFS_MAX_USERNAME_LEN limit is used. It should be
CIFS_MAX_DOMAINNAME_LEN. This patch fixes this.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/cifs/sess.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -429,7 +429,7 @@ int build_ntlmssp_auth_blob(unsigned cha
} else {
int len;
len = cifs_strtoUTF16((__le16 *)tmp, ses->domainName,
- CIFS_MAX_USERNAME_LEN, nls_cp);
+ CIFS_MAX_DOMAINNAME_LEN, nls_cp);
len *= 2; /* unicode is 2 bytes each */
sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer);
sec_blob->DomainName.Length = cpu_to_le16(len);