linux-kernel - Re: [PATCH net] ipv4: don't set IPv6 only flags to IPv4 addresses

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Message-ID: <CAGnkfhx9F1G8K6PjBdUnkCO07GR=ktWAnqOLTcOvg7VGwWb69Q@mail.gmail.com>
Date:   Mon, 1 Jul 2019 18:13:32 +0200
From:   Matteo Croce <mcroce@...hat.com>
To:     Joe Perches <joe@...ches.com>
Cc:     netdev <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
Subject: Re: [PATCH net] ipv4: don't set IPv6 only flags to IPv4 addresses

On Mon, Jul 1, 2019 at 6:10 PM Joe Perches <joe@...ches.com> wrote:
>
> On Mon, 2019-07-01 at 18:08 +0200, Matteo Croce wrote:
> > Avoid the situation where an IPV6 only flag is applied to an IPv4 address:
> []
> > diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
> []
> > @@ -468,6 +473,9 @@ static int __inet_insert_ifa(struct in_ifaddr *ifa, struct nlmsghdr *nlh,
> >       ifa->ifa_flags &= ~IFA_F_SECONDARY;
> >       last_primary = &in_dev->ifa_list;
> >
> > +     /* Don't set IPv6 only flags to IPv6 addresses */
>
> umm, IPv4 addresses?
>
>

Ouch, right.

/* Don't set IPv6 only flags to IPv4 addresses */

Can this be edidet on patchwork instead of spamming with a v2?

-- 
Matteo Croce
per aspera ad upstream