[SCTP]: Unhash the endpoint in sctp_endpoint_free().
This prevents a race between the close of a socket and receive of an
incoming packet.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 67bd530..ffda1d6 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -158,6 +158,12 @@
void sctp_endpoint_free(struct sctp_endpoint *ep)
{
ep->base.dead = 1;
+
+ ep->base.sk->sk_state = SCTP_SS_CLOSED;
+
+ /* Unlink this endpoint, so we can't find it again! */
+ sctp_unhash_endpoint(ep);
+
sctp_endpoint_put(ep);
}
@@ -166,11 +172,6 @@
{
SCTP_ASSERT(ep->base.dead, "Endpoint is not dead", return);
- ep->base.sk->sk_state = SCTP_SS_CLOSED;
-
- /* Unlink this endpoint, so we can't find it again! */
- sctp_unhash_endpoint(ep);
-
/* Free up the HMAC transform. */
sctp_crypto_free_tfm(sctp_sk(ep->base.sk)->hmac);