OverflowError: Python int too large to convert to C ssize_t

[talcher]

Hello,

I try to generate a RSA keypair. Sometimes it works; sometimes it does not.

Here is a part of the traceback of the error, when it is triggered:

File "************.py", line ****, in generate
    pub, priv = session.generate_keypair(
  File "my_project/lib/python3.9/site-packages/pkcs11/types.py", line 509, in generate_keypair
    return self._generate_keypair(key_type, key_length=key_length,
  File "pkcs11/_pkcs11.pyx", line 573, in pkcs11._pkcs11.Session._generate_keypair
  File "pkcs11/_pkcs11.pyx", line 692, in pkcs11._pkcs11.Object._make
  File "pkcs11/_pkcs11.pyx", line 726, in pkcs11._pkcs11.Object.__getitem__
  File "pkcs11/_utils.pyx", line 11, in pkcs11._pkcs11.CK_BYTE_buffer
  File "stringsource", line 152, in View.MemoryView.array.__cinit__
OverflowError: Python int too large to convert to C ssize_t

Here is a part of the code I use:

with token.open(user_pin=*******) as session:
    pub, priv = session.generate_keypair(
        pkcs11.KeyType.RSA,
        self.key_size,
        private_template={
            pkcs11.Attribute.EXTRACTABLE: True,
            pkcs11.Attribute.SENSITIVE: False,
        },
    )

given that:
self.key_size = 2048

My config:
Python 3.9.2
Debian bullseye

Thank you.