===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/canohost.c,v
retrieving revision 1.76
retrieving revision 1.77
diff -u -r1.76 -r1.77
--- src/usr.bin/ssh/canohost.c	2023/03/03 05:00:34	1.76
+++ src/usr.bin/ssh/canohost.c	2023/03/31 04:42:29	1.77
@@ -1,4 +1,4 @@
-/* $OpenBSD: canohost.c,v 1.76 2023/03/03 05:00:34 djm Exp $ */
+/* $OpenBSD: canohost.c,v 1.77 2023/03/31 04:42:29 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -129,6 +129,8 @@
 	char strport[NI_MAXSERV];
 	int r;
 
+	if (sock < 0)
+		return -1;
 	/* Get IP address of client. */
 	fromlen = sizeof(from);
 	memset(&from, 0, sizeof(from));