RE: [PATCH] net: tipc: fix possible refcount leak in tipc_sk_create()

From: Tung Quang Nguyen
Date: Tue Jun 28 2022 - 23:49:58 EST


> sk need to be free when tipc_sk_insert fails. While tipc_sk_insert is hard
> to fail, it's better to fix this.
Incorrect English grammar. You should use a simple comment in changelog, for example: "Free sk in case tipc_sk_insert() fails."
>
> Fixes: 07f6c4bc048a ("tipc: convert tipc reference table to use generic rhashtable")
> Signed-off-by: Hangyu Hua <hbh25y@xxxxxxxxx>
> ---
> net/tipc/socket.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/net/tipc/socket.c b/net/tipc/socket.c
> index 17f8c523e33b..43509c7e90fc 100644
> --- a/net/tipc/socket.c
> +++ b/net/tipc/socket.c
> @@ -502,6 +502,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
> sock_init_data(sock, sk);
> tipc_set_sk_state(sk, TIPC_OPEN);
> if (tipc_sk_insert(tsk)) {
> + sk_free(sk);
> pr_warn("Socket create failed; port number exhausted\n");
> return -EINVAL;
> }
> --
> 2.25.1