From: Jason Wang <jasow...@redhat.com>
Date: Fri, 27 Oct 2017 11:05:44 +0800
> An unaligned alloc_frag->offset caused by previous allocation will
> result an unaligned skb->head. This will lead unaligned
> skb_shared_info and then unaligned dataref which requires to be
> aligned for accessing on some architecture. Fix this by aligning
> alloc_frag->offset before the frag refilling.
>
> Fixes: 0bbd7dad34f8 ("tun: make tun_build_skb() thread safe")
> Cc: Eric Dumazet <eduma...@google.com>
> Cc: Willem de Bruijn <willemdebruijn.ker...@gmail.com>
> Cc: Wei Wei <dotwe...@gmail.com>
> Cc: Dmitry Vyukov <dvyu...@google.com>
> Cc: Mark Rutland <mark.rutl...@arm.com>
> Reported-by: Wei Wei <dotwe...@gmail.com>
> Signed-off-by: Jason Wang <jasow...@redhat.com>
Applied and queued up for -stable, thanks Jason.
