backout previous, data_len is not always initialized

diff --git a/lib/libssl/ssl_asn1.c b/lib/libssl/ssl_asn1.c
index 8e6528d..b27be00 100644 (file)
--- a/lib/libssl/ssl_asn1.c
+++ b/lib/libssl/ssl_asn1.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssl_asn1.c,v 1.52 2017/04/14 15:20:16 jsing Exp $ */
+/* $OpenBSD: ssl_asn1.c,v 1.53 2017/04/16 06:26:55 otto Exp $ */
 
 /*
  * Copyright (c) 2016 Joel Sing <jsing@openbsd.org>
@@ -205,9 +205,12 @@ i2d_SSL_SESSION(SSL_SESSION *s, unsigned char **pp)
        rv = (int)data_len;
 
  err:
+       if (data != NULL)
+               explicit_bzero(data, data_len);
+
        CBB_cleanup(&session);
-       freezero(data, data_len);
        free(peer_cert_bytes);
+       free(data);
 
        return rv;
 }