diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 770b8fe085c3..dcec7311e601 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2555,6 +2555,12 @@ static int tun_xdp_one(struct tun_struct *tun, return -EINVAL; } + if (unlikely(!(READ_ONCE(tun->dev->flags) & IFF_UP))) { + put_page(virt_to_head_page(xdp->data)); + dev_core_stats_rx_dropped_inc(tun->dev); + return -EIO; + } + xdp_prog = rcu_dereference(tun->xdp_prog); if (xdp_prog) { if (gso->gso_type) {