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

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Message-ID: <42624f83da71354a5daef959a4749cb75516d37f.camel@perches.com>
Date:   Mon, 01 Jul 2019 09:10:32 -0700
From:   Joe Perches <joe@...ches.com>
To:     Matteo Croce <mcroce@...hat.com>, netdev@...r.kernel.org
Cc:     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, 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?