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authorWANG Cong <xiyou.wangcong@gmail.com>2017-05-09 16:59:54 -0700
committerBen Hutchings <ben@decadent.org.uk>2017-06-05 21:17:25 +0100
commit53d48f98b800059504da76d12bf0074581aa0fe2 (patch)
treef2bafdd2b3df7a934414e39c101087b1f5bd5ffc
parent60e7579f4b71e2e8b252d2f1b3ef5ffb3b971a4e (diff)
ipv6/dccp: do not inherit ipv6_mc_list from parent
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@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> [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
-rw-r--r--net/dccp/ipv6.c6
-rw-r--r--net/ipv6/tcp_ipv6.c2
2 files changed, 8 insertions, 0 deletions
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index d45b974a27ad..0622f721eb2c 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -486,6 +486,9 @@ 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;
@@ -561,6 +564,9 @@ 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 c6c921d15de4..b5735b30667d 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1177,6 +1177,7 @@ 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;
@@ -1246,6 +1247,7 @@ 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;