From f020ab198f74d42865692869fdee46cb49c7d1c5 Mon Sep 17 00:00:00 2001
From: jsing <>
Date: Thu, 7 Jan 2021 15:37:19 +0000
Subject: Make tls12_record_layer_free() NULL safe.

This is not an issue currently, but avoids future surprises.

Noted by tb@
---
 src/lib/libssl/tls12_record_layer.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/lib')

diff --git a/src/lib/libssl/tls12_record_layer.c b/src/lib/libssl/tls12_record_layer.c
index 32e3fcc813..600b73987e 100644
--- a/src/lib/libssl/tls12_record_layer.c
+++ b/src/lib/libssl/tls12_record_layer.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls12_record_layer.c,v 1.6 2021/01/07 15:32:59 jsing Exp $ */
+/* $OpenBSD: tls12_record_layer.c,v 1.7 2021/01/07 15:37:19 jsing Exp $ */
 /*
  * Copyright (c) 2020 Joel Sing <jsing@openbsd.org>
  *
@@ -66,7 +66,11 @@ tls12_record_layer_new(void)
 void
 tls12_record_layer_free(struct tls12_record_layer *rl)
 {
+	if (rl == NULL)
+		return;
+
 	freezero(rl->read_mac_key, rl->read_mac_key_len);
+
 	freezero(rl, sizeof(struct tls12_record_layer));
 }
 
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