Merge tag 'v7.2-rc5-smb3-server-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:

 - Use memcmp() when comparing fixed-size binary ClientGUIDs, so
   embedded NUL bytes are handled correctly

 - Reject repeated SMB2 NEGOTIATE requests after dialect selection

   This prevents preauth_info leaks, enforces the SMB2 protocol
   requirements, and serializes negotiation state updates.

 - Fix a use-after-free in __close_file_table_ids() by removing the
   volatile file ID from the owning IDR before dropping the IDR
   reference

* tag 'v7.2-rc5-smb3-server-fixes' of git://git.samba.org/ksmbd:
  ksmbd: use memcmp() to compare ClientGUIDs
  ksmbd: reject repeated SMB2 NEGOTIATE requests
  ksmbd: fix use-after-free in __close_file_table_ids()