s3: init_dc_connection() can't init for internal domains

This fixes a crash in winbindd_dual_pam_chng_pswd_auth_crap when given
global_sam_name() in the domain field

diff --git a/source3/winbindd/winbindd_cm.c b/source3/winbindd/winbindd_cm.c
index c013fae78792dc08ab9a5d9e0ac81988b3b7f58d..8a1456f407879af4f93cf1c6729c4c5ef1f38995 100644 (file)
--- a/source3/winbindd/winbindd_cm.c
+++ b/source3/winbindd/winbindd_cm.c
@@ -1665,6 +1665,10 @@ static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
 
 NTSTATUS init_dc_connection(struct winbindd_domain *domain)
 {
+       if (domain->internal) {
+               return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+       }
+
        if (domain->initialized && !domain->online) {
                /* We check for online status elsewhere. */
                return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;