r486: BUG 1309: fix seg fault caused by trying to strdup() a NULL pointer

(This used to be commit 0e1a6b34f2690da32bf568330575651988d0c965)

diff --git a/source3/smbd/password.c b/source3/smbd/password.c
index d15970cbefee3934576c1e0e15b902a7dac04a2f..72292de42271577966b2eb6b9c28ddc4ff29490f 100644 (file)
--- a/source3/smbd/password.c
+++ b/source3/smbd/password.c
@@ -488,7 +488,11 @@ BOOL authorise_login(int snum, fstring user, DATA_BLOB password,
        /* now check the list of session users */
        if (!ok) {
                char *auser;
-               char *user_list = strdup(session_userlist);
+               char *user_list = NULL;
+
+               if ( session_userlist )
+                       user_list = strdup(session_userlist);
+
                if (!user_list)
                        return(False);