From 0fdf009ea0dc96a1d70ab0cded11d5846b03d4e2 Mon Sep 17 00:00:00 2001
From: Andre Caron <andre.l.caron@gmail.com>
Date: Sun, 31 May 2015 23:07:06 -0400
Subject: Fixes memory leak,

---
 src/cryptography/hazmat/backends/openssl/backend.py | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src')

diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index 70ed25d6..a6acb076 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -140,6 +140,12 @@ def _encode_basic_constraints(backend, ca=False, pathlen=0, critical=False):
         _encode_asn1_str(backend, pp[0], r),
     )
     assert extension != backend._ffi.NULL
+
+    # Release acquired memory.
+    backend._lib.OPENSSL_free(pp[0])
+    pp[0] = backend._ffi.NULL
+
+    # Return the wrapped extension.
     return extension
 
 
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