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authorSteve French <smfrench@us.ibm.com>2013-06-25 23:03:16 +0400
committerSteve French <smfrench@gmail.com>2013-06-27 02:31:45 +0400
commitfdf96a907c1fbb93c633e2b7ede3b8df26d6a4c0 (patch)
treec6941390435b58b2cb117fd1537d4d60bc6c5f47 /fs/cifs/cifsencrypt.c
parent2a2c41c07c710f2c1afe3748bdde40db9ea9d9e6 (diff)
downloadlinux-fdf96a907c1fbb93c633e2b7ede3b8df26d6a4c0.tar.xz
Handle big endianness in NTLM (ntlmv2) authentication
This is RH bug 970891 Uppercasing of username during calculation of ntlmv2 hash fails because UniStrupr function does not handle big endian wchars. Also fix a comment in the same code to reflect its correct usage. [To make it easier for stable (rather than require 2nd patch) fixed this patch of Shirish's to remove endian warning generated by sparse -- steve f.] Reported-by: steve <sanpatr1@in.ibm.com> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Cc: <stable@kernel.org> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/cifsencrypt.c')
-rw-r--r--fs/cifs/cifsencrypt.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 30bea6bd3023..330875948f18 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -413,7 +413,7 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
int rc = 0;
int len;
char nt_hash[CIFS_NTHASH_SIZE];
- wchar_t *user;
+ __le16 *user;
wchar_t *domain;
wchar_t *server;
@@ -438,7 +438,7 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
return rc;
}
- /* convert ses->user_name to unicode and uppercase */
+ /* convert ses->user_name to unicode */
len = ses->user_name ? strlen(ses->user_name) : 0;
user = kmalloc(2 + (len * 2), GFP_KERNEL);
if (user == NULL) {
@@ -447,7 +447,7 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
}
if (len) {
- len = cifs_strtoUTF16((__le16 *)user, ses->user_name, len, nls_cp);
+ len = cifs_strtoUTF16(user, ses->user_name, len, nls_cp);
UniStrupr(user);
} else {
memset(user, '\0', 2);