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

From: David Miller
Date: Thu Jun 25 2020 - 19:12:11 EST


From: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
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@xxxxxxxxxx>
> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>

Applied and queued up for -stable, thank you.