From: Bernd Edlinger <bernd.edlinger@hotmail.de>
Date: Fri, 16 Mar 2018 20:12:22 +0000 (+0100)
Subject: Fix a memory leak in tls1_mac
X-Git-Tag: OpenSSL_1_1_1-pre3~49
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a080c3e816e923680e57e647b5cbc3896e8e8106;p=oweals%2Fopenssl.git

Fix a memory leak in tls1_mac

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5650)
---

diff --git a/ssl/record/ssl3_record.c b/ssl/record/ssl3_record.c
index 4ffc84279d..fa902f30fb 100644
--- a/ssl/record/ssl3_record.c
+++ b/ssl/record/ssl3_record.c
@@ -1297,8 +1297,10 @@ int tls1_mac(SSL *ssl, SSL3_RECORD *rec, unsigned char *md, int sending)
         mac_ctx = hash;
     } else {
         hmac = EVP_MD_CTX_new();
-        if (hmac == NULL || !EVP_MD_CTX_copy(hmac, hash))
+        if (hmac == NULL || !EVP_MD_CTX_copy(hmac, hash)) {
+            EVP_MD_CTX_free(hmac);
             return 0;
+        }
         mac_ctx = hmac;
     }