Merge branch 'pkt-access-fixes'

Daniel Borkmann says:

====================
Several fixes to get direct packet access in order from verifier
side. Also test suite fix to run cg_skb as unpriv and an improvement
to make direct packet write less error prone in future.
====================

Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>