===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/kexgexc.c,v
retrieving revision 1.3.2.1
retrieving revision 1.3.2.2
diff -u -r1.3.2.1 -r1.3.2.2
--- src/usr.bin/ssh/kexgexc.c	2006/09/30 04:06:50	1.3.2.1
+++ src/usr.bin/ssh/kexgexc.c	2006/11/08 00:17:14	1.3.2.2
@@ -1,4 +1,4 @@
-/* $OpenBSD: kexgexc.c,v 1.3.2.1 2006/09/30 04:06:50 brad Exp $ */
+/* $OpenBSD: kexgexc.c,v 1.3.2.2 2006/11/08 00:17:14 brad Exp $ */
 /*
  * Copyright (c) 2000 Niels Provos.  All rights reserved.
  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
@@ -48,7 +48,8 @@
 	BIGNUM *p = NULL, *g = NULL;
 	Key *server_host_key;
 	u_char *kbuf, *hash, *signature = NULL, *server_host_key_blob = NULL;
-	u_int klen, kout, slen, sbloblen, hashlen;
+	u_int klen, slen, sbloblen, hashlen;
+	int kout;
 	int min, max, nbits;
 	DH *dh;
 
@@ -147,13 +148,15 @@
 
 	klen = DH_size(dh);
 	kbuf = xmalloc(klen);
-	kout = DH_compute_key(kbuf, dh_server_pub, dh);
+	if ((kout = DH_compute_key(kbuf, dh_server_pub, dh)) < 0)
+		fatal("DH_compute_key: failed");
 #ifdef DEBUG_KEXDH
 	dump_digest("shared secret", kbuf, kout);
 #endif
 	if ((shared_secret = BN_new()) == NULL)
 		fatal("kexgex_client: BN_new failed");
-	BN_bin2bn(kbuf, kout, shared_secret);
+	if (BN_bin2bn(kbuf, kout, shared_secret) == NULL)
+		fatal("kexgex_client: BN_bin2bn failed");
 	memset(kbuf, 0, klen);
 	xfree(kbuf);