diff options
Diffstat (limited to 'net/sctp/input.c')
| -rw-r--r-- | net/sctp/input.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/net/sctp/input.c b/net/sctp/input.c index b9a536b52da2..49d2cc751386 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -874,6 +874,9 @@ void sctp_hash_transport(struct sctp_transport *t) { struct sctp_hash_cmp_arg arg; + if (t->asoc->temp) + return; + arg.ep = t->asoc->ep; arg.paddr = &t->ipaddr; arg.net = sock_net(t->asoc->base.sk); @@ -886,6 +889,9 @@ reinsert: void sctp_unhash_transport(struct sctp_transport *t) { + if (t->asoc->temp) + return; + rhashtable_remove_fast(&sctp_transport_hashtable, &t->node, sctp_hash_params); } @@ -929,15 +935,22 @@ static struct sctp_association *__sctp_lookup_association( struct sctp_transport **pt) { struct sctp_transport *t; + struct sctp_association *asoc = NULL; + rcu_read_lock(); t = sctp_addrs_lookup_transport(net, local, peer); - if (!t || t->dead || t->asoc->temp) - return NULL; + if (!t || !sctp_transport_hold(t)) + goto out; - sctp_association_hold(t->asoc); + asoc = t->asoc; + sctp_association_hold(asoc); *pt = t; - return t->asoc; + sctp_transport_put(t); + +out: + rcu_read_unlock(); + return asoc; } /* Look up an association. protected by RCU read lock */ @@ -949,9 +962,7 @@ struct sctp_association *sctp_lookup_association(struct net *net, { struct sctp_association *asoc; - rcu_read_lock(); asoc = __sctp_lookup_association(net, laddr, paddr, transportp); - rcu_read_unlock(); return asoc; } |