r21548: prevent segv (reference to -1 element of array)

(This used to be commit b5fd72282da85f50a040fd949752bc71023ff055)

diff --git a/source3/nsswitch/idmap.c b/source3/nsswitch/idmap.c
index 92c5ca135537298babec629dbf4760e11ffc7087..d69fd68e1031f27589ae9f8140caf8cdf63fa9be 100644 (file)
--- a/source3/nsswitch/idmap.c
+++ b/source3/nsswitch/idmap.c
@@ -497,7 +497,8 @@ NTSTATUS idmap_init(void)
        /**** finished adding idmap_passdb backend ****/
 
        /* sort domains so that the default is the last one */
-       if (def_dom_num != num_domains-1) { /* default is not last, move it */
+       /* don't sort if no default domain defined */
+       if (def_dom_num != -1 && def_dom_num != num_domains-1) { /* default is not last, move it */
                struct idmap_domain *tmp;
 
                if (pdb_dom_num > def_dom_num) {