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>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index aeb9497b5bb7..df5a9ff71f3f 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1062,6 +1062,7 @@ 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;
@@ -1131,6 +1132,7 @@ 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;