Replace explicit_bzero() plus free() with freezero()

This is simpler, if slightly more expensive

1 files changed, 2 insertions, 3 deletions

diff --git a/src/lib/libcrypto/kdf/tls1_prf.c b/src/lib/libcrypto/kdf/tls1_prf.c
index ab21644d7a..7f6939adda 100644
--- a/src/lib/libcrypto/kdf/tls1_prf.c
+++ b/src/lib/libcrypto/kdf/tls1_prf.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: tls1_prf.c,v 1.32 2024/07/09 17:05:46 tb Exp $ */
+/*      $OpenBSD: tls1_prf.c,v 1.33 2024/07/09 17:29:51 tb Exp $ */
 /*
  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
  * 2016.
@@ -97,8 +97,7 @@ pkey_tls1_prf_cleanup(EVP_PKEY_CTX *ctx)
         struct tls1_prf_ctx *kctx = ctx->data;
 
         freezero(kctx->secret, kctx->secret_len);
-        explicit_bzero(kctx->seed, kctx->seed_len);
-        free(kctx);
+        freezero(kctx, sizeof(*kctx));
 }
 
 static int