From: WANG Cong <xiyou.wangcong@xxxxxxxxx>
commit 83eaddab4378db256d00d295bda6ca997cd13a52 upstream.
Like commit 657831ffc38e ("dccp/tcp: do not inherit mc_list from parent")
we should clear ipv6_mc_list etc. for IPv6 sockets too.
Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>
Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Connor O'Brien <connoro@xxxxxxxxxx>
[AmitP: cherry-picked this backported commit from android-3.18]
Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
---
net/dccp/ipv6.c | 7 +++++++
net/ipv6/tcp_ipv6.c | 2 ++
2 files changed, 9 insertions(+)
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index ff186dac3e07..4d925dbe4bb7 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -487,6 +487,9 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
newsk->sk_backlog_rcv = dccp_v4_do_rcv;
newnp->pktoptions = NULL;
newnp->opt = NULL;
+ newnp->ipv6_mc_list = NULL;
+ newnp->ipv6_ac_list = NULL;
+ newnp->ipv6_fl_list = NULL;
newnp->mcast_oif = inet6_iif(skb);
newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
@@ -562,6 +565,10 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
/* Clone RX bits */
newnp->rxopt.all = np->rxopt.all;
+ newnp->ipv6_mc_list = NULL;
+ newnp->ipv6_ac_list = NULL;
+ newnp->ipv6_fl_list = NULL;
+
/* Clone pktoptions received with SYN */
newnp->pktoptions = NULL;
if (ireq->pktopts != NULL) {
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 19fe7b789a72..b8e05f16659c 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1113,6 +1113,7 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
newtp->af_specific = &tcp_sock_ipv6_mapped_specific;
#endif
+ newnp->ipv6_mc_list = NULL;
newnp->ipv6_ac_list = NULL;
newnp->ipv6_fl_list = NULL;
newnp->pktoptions = NULL;
@@ -1184,6 +1185,7 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
First: no IPv4 options.
*/
newinet->inet_opt = NULL;
+ newnp->ipv6_mc_list = NULL;
newnp->ipv6_ac_list = NULL;
newnp->ipv6_fl_list = NULL;
--
2.7.4