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authorJames Morris <james.l.morris@oracle.com>2016-07-07 10:15:34 +1000
committerJames Morris <james.l.morris@oracle.com>2016-07-07 10:15:34 +1000
commitd011a4d861ce583466a8ae72a0c8e7f51c8cba4e (patch)
tree1ff8dfe7d486f5648e69ee85e54cde1987d8296a /net/dccp/ipv6.c
parent544e1cea03e6674e3c12a3b8e8cc507c3dbeaf0c (diff)
parent3f09354ac84c6904787189d85fb306bf60f714b8 (diff)
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Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/selinux into next
Diffstat (limited to 'net/dccp/ipv6.c')
-rw-r--r--net/dccp/ipv6.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index d176f4e66369..01bacf5bc027 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -216,14 +216,17 @@ static int dccp_v6_send_response(const struct sock *sk, struct request_sock *req
skb = dccp_make_response(sk, dst, req);
if (skb != NULL) {
struct dccp_hdr *dh = dccp_hdr(skb);
+ struct ipv6_txoptions *opt;
dh->dccph_checksum = dccp_v6_csum_finish(skb,
&ireq->ir_v6_loc_addr,
&ireq->ir_v6_rmt_addr);
fl6.daddr = ireq->ir_v6_rmt_addr;
rcu_read_lock();
- err = ip6_xmit(sk, skb, &fl6, rcu_dereference(np->opt),
- np->tclass);
+ opt = ireq->ipv6_opt;
+ if (!opt)
+ opt = rcu_dereference(np->opt);
+ err = ip6_xmit(sk, skb, &fl6, opt, np->tclass);
rcu_read_unlock();
err = net_xmit_eval(err);
}
@@ -236,6 +239,7 @@ done:
static void dccp_v6_reqsk_destructor(struct request_sock *req)
{
dccp_feat_list_purge(&dccp_rsk(req)->dreq_featneg);
+ kfree(inet_rsk(req)->ipv6_opt);
kfree_skb(inet_rsk(req)->pktopts);
}
@@ -494,7 +498,9 @@ static struct sock *dccp_v6_request_recv_sock(const struct sock *sk,
* Yes, keeping reference count would be much more clever, but we make
* one more one thing there: reattach optmem to newsk.
*/
- opt = rcu_dereference(np->opt);
+ opt = ireq->ipv6_opt;
+ if (!opt)
+ opt = rcu_dereference(np->opt);
if (opt) {
opt = ipv6_dup_options(newsk, opt);
RCU_INIT_POINTER(newnp->opt, opt);