1 files changed, 3 insertions, 1 deletions

diff --git a/src/usr.bin/nc/netcat.c b/src/usr.bin/nc/netcat.c
index 8c60fd1882..67beb10d0a 100644
--- a/src/usr.bin/nc/netcat.c
+++ b/src/usr.bin/nc/netcat.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: netcat.c,v 1.229 2024/11/02 17:19:27 tb Exp $ */
+/* $OpenBSD: netcat.c,v 1.230 2025/05/14 08:56:41 tb Exp $ */
 /*
  * Copyright (c) 2001 Eric Jackson <ericj@monkey.org>
  * Copyright (c) 2015 Bob Beck.  All rights reserved.
@@ -1692,6 +1692,8 @@ process_tls_opt(char *s, int *flags)
                                         errx(1, "invalid tls value `%s'", s);
                                 *t->value = v;
                         } else {
+                                if (v != NULL)
+                                        errx(1, "invalid tls value `%s'", s);
                                 *flags |= t->flag;
                         }
                         return 1;