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Date:   Thu, 02 May 2019 10:24:23 +0200
From:   Paolo Abeni <>
To:     Eric Dumazet <>,
        "David S . Miller" <>
Cc:     netdev <>,
        Eric Dumazet <>,
        syzbot <>
Subject: Re: [PATCH net] udp: fix GRO packet of death

On Wed, 2019-05-01 at 18:56 -0700, Eric Dumazet wrote:
> syzbot was able to crash host by sending UDP packets with a 0 payload.
> TCP does not have this issue since we do not aggregate packets without
> payload.
> Since dev_gro_receive() sets gso_size based on skb_gro_len(skb)
> it seems not worth trying to cope with padded packets.

Ooops... I messed-up badly! Thanks Eric for fixing this.

(too late, still)

Acked-by: Paolo Abeni <>

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