netdev - Re: [PATCH] IPv6: fix Mobile IPv6 regression

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 31 May 2010 10:46:20 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Brian Haley <brian.haley@...com>
Cc:	David Miller <davem@...emloft.net>,
	Arnaud Ebalard <arno@...isbad.org>,
	Scott C Otto <otts@...atel-lucent.com>,
	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>, netdev@...r.kernel.org
Subject: Re: [PATCH] IPv6: fix Mobile IPv6 regression

On Fri, May 28, 2010 at 02:17:43PM -0400, Brian Haley wrote:
> Commit f4f914b5 (net: ipv6 bind to device issue) caused
> a regression with Mobile IPv6 when it changed the meaning
> of fl->oif to become a strict requirement of the route
> lookup.  Instead, only force strict mode when
> sk->sk_bound_dev_if is set on the calling socket, getting
> the intended behavior and fixing the regression.
> 
> Tested-by: Arnaud Ebalard <arno@...isbad.org>
> Signed-off-by: Brian Haley <brian.haley@...com>
> 
> diff --git a/net/ipv6/route.c b/net/ipv6/route.c
> index 294cbe8..252d761 100644
> --- a/net/ipv6/route.c
> +++ b/net/ipv6/route.c
> @@ -814,7 +814,7 @@ struct dst_entry * ip6_route_output(struct net *net, struct sock *sk,
>  {
>  	int flags = 0;
>  
> -	if (fl->oif || rt6_need_strict(&fl->fl6_dst))
> +	if ((sk && sk->sk_bound_dev_if) || rt6_need_strict(&fl->fl6_dst))
>  		flags |= RT6_LOOKUP_F_IFACE;
>  
>  	if (!ipv6_addr_any(&fl->fl6_src))
hi,

sorry for the late reply, I was out last week..

the change looks ok, I'll verify it with the reproducer
I used for the last fix

thanks,
jirka
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html