s3:winbind: fix bug #7894 - sporadic winbind panic in rpc query_user_list

correctly evaluate return code of rpccli_samr_QueryDisplayInfo()
before accessing results.
(cherry picked from commit bdebae14aa646dd9f969db5b3d1aa25c971c9381)

diff --git a/source3/winbindd/winbindd_rpc.c b/source3/winbindd/winbindd_rpc.c
index 599c888aad862238585f4f7d93eaf38cbb5b1f8d..b65b126cf03c0c7ecc5b1021d8ce34385a7806b3 100644 (file)
--- a/source3/winbindd/winbindd_rpc.c
+++ b/source3/winbindd/winbindd_rpc.c
@@ -84,6 +84,13 @@ static NTSTATUS query_user_list(struct winbindd_domain *domain,
                                                      &total_size,
                                                      &returned_size,
                                                      &disp_info);
+
+               if (!NT_STATUS_IS_OK(result)) {
+                       if (!NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
+                               return result;
+                       }
+               }
+
                num_dom_users = disp_info.info1.count;
                start_idx += disp_info.info1.count;
                loop_count++;