netdev - Re: [PATCH] net: tcp: move sk_rx_dst_set call after tcp_create_openreq

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 for Android: free password hash cracker in your pocket

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

Date:	Sun, 19 Aug 2012 12:45:23 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Neal Cardwell <ncardwell@...gle.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH] net: tcp: move sk_rx_dst_set call after
 tcp_create_openreq_child()

On Sat, 2012-08-18 at 23:56 -0400, Neal Cardwell wrote:
> This commit removes the sk_rx_dst_set calls from
> tcp_create_openreq_child(), because at that point the icsk_af_ops
> field of ipv6_mapped TCP sockets has not been set to its proper final
> value.
> 
> Instead, to make sure we get the right sk_rx_dst_set variant
> appropriate for the address family of the new connection, we have
> tcp_v{4,6}_syn_recv_sock() directly call the appropriate function
> shortly after the call to tcp_create_openreq_child() returns.
> 
> Signed-off-by: Neal Cardwell <ncardwell@...gle.com>
> Reported-by: Artem Savkov <artem.savkov@...il.com>
> Cc: Eric Dumazet <edumazet@...gle.com>
> ---


>  		 * copy any s_data_payload stored at the original socket.
> diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
> index bb9ce2b..492c2d9 100644
> --- a/net/ipv6/tcp_ipv6.c
> +++ b/net/ipv6/tcp_ipv6.c
> @@ -81,6 +81,8 @@ static void	__tcp_v6_send_check(struct sk_buff *skb,
>  				    const struct in6_addr *saddr,
>  				    const struct in6_addr *daddr);
>  
> +static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb);
> +


Hi Neal, thanks for taking care of this.

Could you move inet6_sk_rx_dst_set() definition to avoid this forward ?



--
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