From 1b3c96dba4796700c571a39428b86eaab746d294 Mon Sep 17 00:00:00 2001
From: tb <tb@openbsd.org>
Date: Sun, 4 Apr 2021 19:36:09 +0000
Subject: [PATCH] Explicitly NULL pointers to avoid a double free.

---
 regress/lib/libcrypto/bn/mont/mont.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/regress/lib/libcrypto/bn/mont/mont.c b/regress/lib/libcrypto/bn/mont/mont.c
index 83d56e53757..54626b5c38a 100644
--- a/regress/lib/libcrypto/bn/mont/mont.c
+++ b/regress/lib/libcrypto/bn/mont/mont.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mont.c,v 1.3 2021/04/04 19:32:26 tb Exp $	*/
+/*	$OpenBSD: mont.c,v 1.4 2021/04/04 19:36:09 tb Exp $	*/
 
 /*
  * Copyright (c) 2014 Miodrag Vallat.
@@ -63,7 +63,9 @@ main(int argc, char *argv[])
 			goto err;
 
 		free(key);
+		key = NULL;
 		DH_free(dh);
+		dh = NULL;
 	}
 
 	return 0;
-- 
2.20.1