From: Sergey Kandaurov <pluknet@nginx.com>
Date: Wed, 7 Apr 2021 12:14:41 +0000 (+0300)
Subject: QUIC: fixed memory leak in ngx_hkdf_extract()/ngx_hkdf_expand().
X-Git-Url: http://git.kaiwu.me/postgresql/log/contrib/postgres_fdw/%7B@url%7D?a=commitdiff_plain;h=b61176b9f7e8c8649e14cbb8532de6e3cf560f63;p=nginx.git

QUIC: fixed memory leak in ngx_hkdf_extract()/ngx_hkdf_expand().

This fixes leak on successful path when built with OpenSSL.
---

diff --git a/src/event/quic/ngx_event_quic_protection.c b/src/event/quic/ngx_event_quic_protection.c
index efc15a22b..12dd233b8 100644
--- a/src/event/quic/ngx_event_quic_protection.c
+++ b/src/event/quic/ngx_event_quic_protection.c
@@ -348,6 +348,8 @@ ngx_hkdf_expand(u_char *out_key, size_t out_len, const EVP_MD *digest,
         goto failed;
     }
 
+    EVP_PKEY_CTX_free(pctx);
+
     return NGX_OK;
 
 failed:
@@ -409,6 +411,8 @@ ngx_hkdf_extract(u_char *out_key, size_t *out_len, const EVP_MD *digest,
         goto failed;
     }
 
+    EVP_PKEY_CTX_free(pctx);
+
     return NGX_OK;
 
 failed: