SUNRPC: Temporary sockets should inherit the cred from their parent

Temporary sockets should inherit the credential (and hence the user
namespace) from the parent listener transport.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index b76ee83..9429b28 100644 (file)
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -786,9 +786,10 @@ static int svc_handle_xprt(struct svc_rqst *rqstp, struct svc_xprt *xprt)
                __module_get(xprt->xpt_class->xcl_owner);
                svc_check_conn_limits(xprt->xpt_server);
                newxpt = xprt->xpt_ops->xpo_accept(xprt);
-               if (newxpt)
+               if (newxpt) {
+                       newxpt->xpt_cred = get_cred(xprt->xpt_cred);
                        svc_add_new_temp_xprt(serv, newxpt);
-               else
+               } else
                        module_put(xprt->xpt_class->xcl_owner);
        } else if (svc_xprt_reserve_slot(rqstp, xprt)) {
                /* XPT_DATA|XPT_DEFERRED case: */