sctp: kzalloc() error handling on deleting last address

Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp>
Acked-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e7e1b142875..60038fef3ba 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -786,6 +786,10 @@ static int sctp_send_asconf_del_ip(struct sock		*sk,
                                 continue;
                         asoc->asconf_addr_del_pending =
                             kzalloc(sizeof(union sctp_addr), GFP_ATOMIC);
+                        if (asoc->asconf_addr_del_pending == NULL) {
+                                retval = -ENOMEM;
+                                goto out;
+                        }
                         asoc->asconf_addr_del_pending->sa.sa_family =
                                     addrs->sa_family;
                         asoc->asconf_addr_del_pending->v4.sin_port =