ipv6/dccp: do not inherit ipv6_mc_list from parent

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@google.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name ipv6-dccp-do-not-inherit-ipv6_mc_list-from-parent.patch

diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index d7ad94a65427dea1ed91dd7d814c8217ae64b8fe..ddcb8ef2f93703357ad21746b3287feb925c7d7a 100644 (file)
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -426,6 +426,9 @@ static struct sock *dccp_v6_request_recv_sock(const 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;
 
@@ -490,6 +493,9 @@ static struct sock *dccp_v6_request_recv_sock(const 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;
        newnp->pktoptions = NULL;
        newnp->opt        = NULL;
        newnp->mcast_oif  = inet6_iif(skb);

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b2e61a0e8d0a2b656812c2d2125e01d0a3e72584..aef9b28067f4dc9a5aab03f897b69e5e14b920ad 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1046,6 +1046,7 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
                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;
@@ -1115,6 +1116,7 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
           First: no IPv4 options.
         */
        newinet->inet_opt = NULL;
+       newnp->ipv6_mc_list = NULL;
        newnp->ipv6_ac_list = NULL;
        newnp->ipv6_fl_list = NULL;