netdev - Re: [PATCH] udp6: Fix race condition in udp6

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Message-ID: <CANn89iLGOVwW-KHBuJ94E+QoVARWw5EBKyfh0mPkOT+5ws31Fw@mail.gmail.com>
Date: Fri, 26 May 2023 18:00:01 +0200
From: Eric Dumazet <edumazet@...gle.com>
To: Ефанов Владислав Александрович <vefanov@...ras.ru>
Cc: Paolo Abeni <pabeni@...hat.com>, Willem de Bruijn <willemdebruijn.kernel@...il.com>, 
	"David S. Miller" <davem@...emloft.net>, David Ahern <dsahern@...nel.org>, 
	Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
	lvc-project@...uxtesting.org
Subject: Re: [PATCH] udp6: Fix race condition in udp6_sendmsg & connect

On Fri, May 26, 2023 at 5:58 PM Ефанов Владислав Александрович
<vefanov@...ras.ru> wrote:
>
> Paolo,
>
>
> I don't think that we can just move sk_dst_set() call.
>
> I think we can destroy dst of sendmsg task in this case.
>

dst are RCU protected, it should be easy to make sure we respect all the rules.