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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: Eric Dumazet <edumazet@google.com>
Cc: netdev <netdev@vger.kernel.org>,
	wireguard@lists.zx2c4.com, syzbot <syzkaller@googlegroups.com>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH net] wireguard: device: provide sane limits for mtu setting
Date: Fri, 14 Feb 2020 10:11:34 +0100
Message-ID: <CAHmME9oMyauDtVaOSfmeVAKmCr_QBoqC1Vmh+aprtO=Z57PGxw@mail.gmail.com> (raw)
In-Reply-To: <20200214063814.229451-1-edumazet@google.com>

Hi Eric,

On 2/14/20, Eric Dumazet <edumazet@google.com> wrote:
> If wireguard device mtu is set to zero, a divide by zero
> crash happens in calculate_skb_padding().
> This patch provides dev->min_mtu and dev->max_mtu bounds.

Thanks for the patch. However, I solved this slightly differently
yesterday afternoon already:
. I've got some additional testing of this to do this afternoon, and
then I'll submit it to the list.

WireGuard mailing list

      parent reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-14  6:38 Eric Dumazet
2020-02-14  6:40 ` Quan Zhou
2020-02-14  7:11   ` Samir Nassar
2020-02-14 10:11     ` Quan Zhou
2020-02-14  9:11 ` Jason A. Donenfeld [this message]

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