I've come across the notice about the KPTI vulnerability with Intel CPUs... Was wondering whether Oracle is actively working on this for Solaris 10 x86, Exadata and/or Linux offerings. Details here: https://nakedsecurity.sophos.com/2018/01/03/fckwit-aka-kaiser-aka-kpti-intel-cpu-flaw-needs-low-level-os-patches/
This seems nasty, and with the other providers already releasing patches, it would be a good idea to see where Oracle is in regards to this - MOS doesn't appear to have any information on it.