From: Jason Wang <[email protected]>
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 <[email protected]>
> Cc: Willem de Bruijn <[email protected]>
> Cc: Wei Wei <[email protected]>
> Cc: Dmitry Vyukov <[email protected]>
> Cc: Mark Rutland <[email protected]>
> Reported-by: Wei Wei <[email protected]>
> Signed-off-by: Jason Wang <[email protected]>
Applied and queued up for -stable, thanks Jason.
