From: tb <tb@openbsd.org>
Date: Tue, 9 Jul 2024 17:01:40 +0000 (+0000)
Subject: Make a NULL check explicit
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=dd82f57f46c3a2444abc6492488f89b2c3d6f37f;p=openbsd

Make a NULL check explicit
---

diff --git a/lib/libcrypto/kdf/tls1_prf.c b/lib/libcrypto/kdf/tls1_prf.c
index 1ba1e363f71..cefb3e2cad0 100644
--- a/lib/libcrypto/kdf/tls1_prf.c
+++ b/lib/libcrypto/kdf/tls1_prf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: tls1_prf.c,v 1.29 2024/07/09 17:00:59 tb Exp $ */
+/*	$OpenBSD: tls1_prf.c,v 1.30 2024/07/09 17:01:40 tb Exp $ */
 /*
  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
  * 2016.
@@ -291,7 +291,7 @@ tls1_prf_P_hash(const EVP_MD *md,
 			goto err;
 		if (out_len > (size_t)chunk && !EVP_MD_CTX_copy_ex(ctx_tmp, ctx))
 			goto err;
-		if (seed && !EVP_DigestSignUpdate(ctx, seed, seed_len))
+		if (seed != NULL && !EVP_DigestSignUpdate(ctx, seed, seed_len))
 			goto err;
 
 		if (out_len > (size_t)chunk) {