CVE-2026-84895 – In proxygen from v2026.04.06.00 until v2026.09.28.00, QuicWtSession::closeSession accesses

In proxygen from v2026.04.06.00 until v2026.09.28.00, QuicWtSession::closeSession accesses its member fields after calling the base QuicWtSessionBase::closeSession method. The base method notifies the session handler, which may release the last reference to the session and destroy it.