netdev - Re: [PATCH v2] net: always use icmp{,v6}_ndo_send from ndo_start

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Message-ID: <CA+FuTSfV1ehfMNOM=N0uBMG=hNsdrx3+-eAcpvUc=yapbk5jbw@mail.gmail.com>
Date:   Fri, 26 Feb 2021 21:11:48 -0500
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     Network Development <netdev@...r.kernel.org>,
        Florian Westphal <fw@...len.de>,
        "David S . Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Steffen Klassert <steffen.klassert@...unet.com>
Subject: Re: [PATCH v2] net: always use icmp{,v6}_ndo_send from ndo_start_xmit

On Fri, Feb 26, 2021 at 7:40 PM Jason A. Donenfeld <Jason@...c4.com> wrote:
>
> There were a few remaining tunnel drivers that didn't receive the prior
> conversion to icmp{,v6}_ndo_send. Knowing now that this could lead to
> memory corrution (see ee576c47db60 ("net: icmp: pass zeroed opts from
> icmp{,v6}_ndo_send before sending") for details), there's even more
> imperative to have these all converted. So this commit goes through the
> remaining cases that I could find and does a boring translation to the
> ndo variety.
>
> The Fixes: line below is the merge that originally added icmp{,v6}_
> ndo_send and converted the first batch of icmp{,v6}_send users. The
> rationale then for the change applies equally to this patch. It's just
> that these drivers were left out of the initial conversion because these
> network devices are hiding in net/ rather than in drivers/net/.
>
> Cc: Florian Westphal <fw@...len.de>
> Cc: Willem de Bruijn <willemb@...gle.com>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
> Cc: David Ahern <dsahern@...nel.org>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Steffen Klassert <steffen.klassert@...unet.com>
> Fixes: 803381f9f117 ("Merge branch 'icmp-account-for-NAT-when-sending-icmps-from-ndo-layer'")
> Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>

Acked-by: Willem de Bruijn <willemb@...gle.com>