Messages in this thread | | | Date | Sat, 28 Oct 2017 19:06:15 +0900 (KST) | Subject | Re: [PATCH V2 net] tuntap: properly align skb->head before building skb | From | David Miller <> |
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From: Jason Wang <jasowang@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 <edumazet@google.com> > Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com> > Cc: Wei Wei <dotweiba@gmail.com> > Cc: Dmitry Vyukov <dvyukov@google.com> > Cc: Mark Rutland <mark.rutland@arm.com> > Reported-by: Wei Wei <dotweiba@gmail.com> > Signed-off-by: Jason Wang <jasowang@redhat.com>
Applied and queued up for -stable, thanks Jason.
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