If `pkcs12.serialize_key_and_certificates` is called with both:1. A certificate whose public key did not match the provided private key2. An `encryption_algorithm` with `hmac_hash` set (via `PrivateFormat.PKCS12.encryption_builder().hmac_hash(...)`Then a NULL pointer dereference would occur, crashing the Python process.This has been resolved, and now a `ValueError` is properly raised.Patched in https://github.com/pyca/cryptography/pull/10423
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