cifs: Read buffer overflow

Check whether index is within bounds before testing the element.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Roel Kluin 2009-08-02 13:00:18 +02:00 committed by Steve French
parent 4486d6ede1
commit 24e2fb615f

View File

@ -44,7 +44,7 @@ cifs_ucs2_bytes(const __le16 *from, int maxbytes,
int maxwords = maxbytes / 2;
char tmp[NLS_MAX_CHARSET_SIZE];
for (i = 0; from[i] && i < maxwords; i++) {
for (i = 0; i < maxwords && from[i]; i++) {
charlen = codepage->uni2char(le16_to_cpu(from[i]), tmp,
NLS_MAX_CHARSET_SIZE);
if (charlen > 0)