linux-kernel - [145/262] ipv6: nullify ipv6_ac_list and ipv6_fl

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Date:	Wed, 09 Nov 2011 13:27:47 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Zheng Yan <zheng.z.yan@...el.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [145/262] ipv6: nullify ipv6_ac_list and ipv6_fl_list when creating new socket

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------


From: "Yan, Zheng" <zheng.z.yan@...el.com>

[ Upstream commit 676a1184e8afd4fed7948232df1ff91517400859 ]

ipv6_ac_list and ipv6_fl_list from listening socket are inadvertently
shared with new socket created for connection.

Signed-off-by: Zheng Yan <zheng.z.yan@...el.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 net/ipv6/tcp_ipv6.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1409,6 +1409,8 @@ static struct sock * tcp_v6_syn_recv_soc
 		newtp->af_specific = &tcp_sock_ipv6_mapped_specific;
 #endif
 
+		newnp->ipv6_ac_list = NULL;
+		newnp->ipv6_fl_list = NULL;
 		newnp->pktoptions  = NULL;
 		newnp->opt	   = NULL;
 		newnp->mcast_oif   = inet6_iif(skb);
@@ -1473,6 +1475,7 @@ static struct sock * tcp_v6_syn_recv_soc
 	   First: no IPv4 options.
 	 */
 	newinet->inet_opt = NULL;
+	newnp->ipv6_ac_list = NULL;
 	newnp->ipv6_fl_list = NULL;
 
 	/* Clone RX bits */


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