Kees Cook has been doing some thinking about plans for new seccomp features to work on soon. There were
four separate areas that he was interested in, which he detailed in a
lengthy mid-May message on the linux-kernel mailing list. One of those
features, deep argument inspection, has been covered here before, but it would seem that we
are getting closer to a resolution on how that all will work.

Source: LWN.net – [$] Seccomp and deep argument inspection