On Tue, 2025-03-25 at 12:17 -0400, trondmy@xxxxxxxxxx wrote:
> From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
>
> If we already had a valid port number for the RPC service, then we
> should not allow the rpcbind client to set it to the invalid value '0'.
>
> Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
> ---
> net/sunrpc/rpcb_clnt.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
> index 102c3818bc54..53bcca365fb1 100644
> --- a/net/sunrpc/rpcb_clnt.c
> +++ b/net/sunrpc/rpcb_clnt.c
> @@ -820,9 +820,10 @@ static void rpcb_getport_done(struct rpc_task *child, void *data)
> }
>
> trace_rpcb_setport(child, map->r_status, map->r_port);
> - xprt->ops->set_port(xprt, map->r_port);
> - if (map->r_port)
> + if (map->r_port) {
> + xprt->ops->set_port(xprt, map->r_port);
> xprt_set_bound(xprt);
> + }
> }
>
> /*
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
