commit 0fdf009ea0dc96a1d70ab0cded11d5846b03d4e2
author Andre Caron <andre.l.caron@gmail.com> Sun May 31 23:07:06 2015 -0400
committer Ian Cordasco <graffatcolmingov@gmail.com> Wed Jun 24 13:35:49 2015 -0500
tree 3458f48f900faa720287793ec7839bb447c82dd6
parent ce02de706e4ec0a3945240096d4fd4d92478effe

Fixes memory leak,

src/cryptography/hazmat/backends/openssl/backend.py

diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index 70ed25d..a6acb07 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -140,6 +140,12 @@
         _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