Messages in this thread |  | | Subject | Re: [PATCH net] net: flow_dissector: fail on evil iph->ihl | From | Eric Dumazet <> | Date | Fri, 01 Nov 2013 02:48:24 -0700 |
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On Fri, 2013-11-01 at 15:01 +0800, Jason Wang wrote: > We don't validate iph->ihl which may lead a dead loop if we meet a IPIP > skb whose iph->ihl is zero. Fix this by failing immediately when iph->ihl > is evil (less than 5). > > This issue were introduced by commit ec5efe7946280d1e84603389a1030ccec0a767ae > (rps: support IPIP encapsulation). > > Cc: Eric Dumazet <edumazet@google.com> > Cc: Petr Matousek <pmatouse@redhat.com> > Cc: Michael S. Tsirkin <mst@redhat.com> > Cc: Daniel Borkmann <dborkman@redhat.com> > Signed-off-by: Jason Wang <jasowang@redhat.com> > --- > This patch is needed for stable. > ---
Acked-by: Eric Dumazet <edumazet@google.com>
Thanks Jason !
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