sctp: Disallow new connection on a closing socket
If a socket has a lot of association that are in the process of
of being closed/aborted, it is possible for a remote to establish
new associations during the time period that the old ones are shutting
down. If this was a result of a close() call, there will be no socket
and will cause a memory leak. We'll prevent this by setting the
socket state to CLOSING and disallow new associations when in this state.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 971890d..a7e544e 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1361,6 +1361,7 @@
sctp_lock_sock(sk);
sk->sk_shutdown = SHUTDOWN_MASK;
+ sk->sk_state = SCTP_SS_CLOSING;
ep = sctp_sk(sk)->ep;