From: tb <tb@openbsd.org>
Date: Fri, 22 Jan 2021 15:54:32 +0000 (+0000)
Subject: Avoid NULL deref on BIO_new{_mem_buf,}() failure.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=3fb767b43b9c2647a4bce0ed5581b11d5e47074d;p=openbsd

Avoid NULL deref on BIO_new{_mem_buf,}() failure.
---

diff --git a/regress/lib/libssl/client/clienttest.c b/regress/lib/libssl/client/clienttest.c
index be9ebc1d30e..51b23986fd1 100644
--- a/regress/lib/libssl/client/clienttest.c
+++ b/regress/lib/libssl/client/clienttest.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: clienttest.c,v 1.26 2020/11/19 09:35:50 tb Exp $ */
+/*	$OpenBSD: clienttest.c,v 1.27 2021/01/22 15:54:32 tb Exp $ */
 /*
  * Copyright (c) 2015 Joel Sing <jsing@openbsd.org>
  *
@@ -456,8 +456,10 @@ client_hello_test(int testno, struct client_hello_test *cht)
 	SSL_CTX_free(ssl_ctx);
 	SSL_free(ssl);
 
-	rbio->references = 1;
-	wbio->references = 1;
+	if (rbio != NULL)
+		rbio->references = 1;
+	if (wbio != NULL)
+		wbio->references = 1;
 
 	BIO_free(rbio);
 	BIO_free(wbio);