linux-kernel - Re: [PATCH net] sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket

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Message-Id: <20200625.161206.1619464748667177222.davem@davemloft.net>
Date:   Thu, 25 Jun 2020 16:12:06 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     marcelo.leitner@...il.com
Cc:     netdev@...r.kernel.org, lucien.xin@...il.com,
        Michael.Tuexen@...chi.franken.de, vyasevich@...il.com,
        nhorman@...driver.com, linux-sctp@...r.kernel.org,
        linux-kernel@...r.kernel.org, cminyard@...sta.com
Subject: Re: [PATCH net] sctp: Don't advertise IPv4 addresses if ipv6only
 is set on the socket

From: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
Date: Wed, 24 Jun 2020 17:34:18 -0300

> If a socket is set ipv6only, it will still send IPv4 addresses in the
> INIT and INIT_ACK packets. This potentially misleads the peer into using
> them, which then would cause association termination.
> 
> The fix is to not add IPv4 addresses to ipv6only sockets.
> 
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Reported-by: Corey Minyard <cminyard@...sta.com>
> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>

Applied and queued up for -stable, thank you.