From 181dda46a314a34515c444e9fe7e71298cd24839 Mon Sep 17 00:00:00 2001 From: Sowmini Varadhan Date: Thu, 6 Jul 2017 08:15:06 -0700 Subject: [PATCH] rds: tcp: use sock_create_lite() to create the accept socket commit 0933a578cd55b02dc80f219dc8f2efb17ec61c9a upstream. There are two problems with calling sock_create_kern() from rds_tcp_accept_one() 1. it sets up a new_sock->sk that is wasteful, because this ->sk is going to get replaced by inet_accept() in the subsequent ->accept() 2. The new_sock->sk is a leaked reference in sock_graft() which expects to find a null parent->sk Avoid these problems by calling sock_create_lite(). Signed-off-by: Sowmini Varadhan Acked-by: Santosh Shilimkar Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/rds/tcp_listen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c index e0b23fb..525b624 100644 --- a/net/rds/tcp_listen.c +++ b/net/rds/tcp_listen.c @@ -129,7 +129,7 @@ int rds_tcp_accept_one(struct socket *sock) if (!sock) /* module unload or netns delete in progress */ return -ENETUNREACH; - ret = sock_create_kern(sock_net(sock->sk), sock->sk->sk_family, + ret = sock_create_lite(sock->sk->sk_family, sock->sk->sk_type, sock->sk->sk_protocol, &new_sock); if (ret) -- 2.7.4