RFR: 8294906: Memory leak in PKCS11 TLS server

[Valerie Peng]

On Thu, 6 Oct 2022 13:27:23 GMT, Daniel Jeliński <djelinski at openjdk.org> wrote:

> C_DeriveKey with mechanisms `CKM_*_KEY_AND_MAC_DERIVE` always returns mac keys, even if macBits is zero. These keys must be free'd when no longer needed.
> 
> Verified that:
> - SSL server configured with PKCS11-NSS provider leaks memory without this patch, does not leak memory with this patch
> - The same server continues to function correctly
> - Existing tier1-3 tests continue to pass with NSS; did not test any other PKCS11 providers
> - new tests for AES-128-GCM-SHA256 and AES-256-GCM-SHA384 key derivation pass

I will take a look, thanks~

-------------

PR: https://git.openjdk.org/jdk/pull/10594