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| author | James Morris <james.l.morris@oracle.com> | 2016-07-07 10:15:34 +1000 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2016-07-07 10:15:34 +1000 |
| commit | d011a4d861ce583466a8ae72a0c8e7f51c8cba4e (patch) | |
| tree | 1ff8dfe7d486f5648e69ee85e54cde1987d8296a /net/dccp/ipv6.c | |
| parent | 544e1cea03e6674e3c12a3b8e8cc507c3dbeaf0c (diff) | |
| parent | 3f09354ac84c6904787189d85fb306bf60f714b8 (diff) | |
| download | linux-d011a4d861ce583466a8ae72a0c8e7f51c8cba4e.tar.gz linux-d011a4d861ce583466a8ae72a0c8e7f51c8cba4e.tar.bz2 linux-d011a4d861ce583466a8ae72a0c8e7f51c8cba4e.zip | |
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.c | 12 |
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); |