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-rw-r--r--src/cryptography/hazmat/backends/openssl/backend.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index 18faecb3..88a17de0 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -119,6 +119,9 @@ def _encode_basic_constraints(backend, basic_constraints, critical):
obj = _txt2obj(backend, x509.OID_BASIC_CONSTRAINTS.dotted_string)
assert obj is not None
constraints = backend._lib.BASIC_CONSTRAINTS_new()
+ constraints = backend._ffi.gc(
+ constraints, backend._lib.BASIC_CONSTRAINTS_free
+ )
constraints.ca = 255 if basic_constraints.ca else 0
if basic_constraints.ca:
constraints.pathlen = _encode_asn1_int(