From: Willem de Bruijn <willemdebruijn.ker...@gmail.com>
Date: Tue, 7 Jun 2016 12:06:34 -0400
> From: Willem de Bruijn <will...@google.com>
>
> Socket option PACKET_FANOUT_DATA takes a struct sock_fprog as argument
> if PACKET_FANOUT has mode PACKET_FANOUT_CBPF. This structure contains
> a pointer into user memory. If userland is 32-bit and kernel is 64-bit
> the two disagree about the layout of struct sock_fprog.
>
> Add compat setsockopt support to convert a 32-bit compat_sock_fprog to
> a 64-bit sock_fprog. This is analogous to compat_sock_fprog support for
> SO_REUSEPORT added in commit 1957598840f4 ("soreuseport: add compat
> case for setsockopt SO_ATTACH_REUSEPORT_CBPF").
>
> Reported-by: Daniel Borkmann <dan...@iogearbox.net>
> Signed-off-by: Willem de Bruijn <will...@google.com>
Applied.
