diff --git a/session.c b/session.c
index 6844720..7f10abf 100644
--- a/session.c
+++ b/session.c
@@ -33,7 +33,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: session.c,v 1.180 2004/07/28 09:40:29 markus Exp $");
+RCSID("$OpenBSD: session.c,v 1.181 2004/12/23 17:35:48 markus Exp $");
 
 #include "ssh.h"
 #include "ssh1.h"
@@ -245,6 +245,10 @@
 	u_int proto_len, data_len, dlen, compression_level = 0;
 
 	s = session_new();
+	if (s == NULL) {
+		error("no more sessions");
+		return;
+	}
 	s->authctxt = authctxt;
 	s->pw = authctxt->pw;