===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/sshsig.c,v
retrieving revision 1.26
retrieving revision 1.27
diff -u -r1.26 -r1.27
--- src/usr.bin/ssh/sshsig.c	2021/11/28 07:21:26	1.26
+++ src/usr.bin/ssh/sshsig.c	2022/01/05 04:02:42	1.27
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshsig.c,v 1.26 2021/11/28 07:21:26 djm Exp $ */
+/* $OpenBSD: sshsig.c,v 1.27 2022/01/05 04:02:42 djm Exp $ */
 /*
  * Copyright (c) 2019 Google LLC
  *
@@ -919,7 +919,7 @@
 	}
 
 	/* Check whether options preclude the use of this key */
-	if (sigopts->namespaces != NULL &&
+	if (sigopts->namespaces != NULL && sig_namespace != NULL &&
 	    match_pattern_list(sig_namespace, sigopts->namespaces, 0) != 1) {
 		error("%s:%lu: key is not permitted for use in signature "
 		    "namespace \"%s\"", path, linenum, sig_namespace);