$OpenBSD: patch-source4_dsdb_samdb_ldb_modules_acl_c,v 1.1 2018/09/02 16:41:56 jca Exp $

Index: source4/dsdb/samdb/ldb_modules/acl.c
--- source4/dsdb/samdb/ldb_modules/acl.c.orig
+++ source4/dsdb/samdb/ldb_modules/acl.c
@@ -631,7 +631,7 @@ fail:
 		      "nbname[%s] ntds[%s] forest[%s] domain[%s]\n",
 		      spn_value, (unsigned)userAccountControl,
 		      samAccountName, dnsHostName,
-		      netbios_name, ntds_guid,
+		      netbios_name, ntds_guid ? ntds_guid : "(NULL)",
 		      forest_name, base_domain);
 	return LDB_ERR_CONSTRAINT_VIOLATION;
 
