On Wed, 4 Nov 2020 16:40:27 +0100 Andrea Parri (Microsoft) wrote: > From: Andres Beltran <lkmlabelt@xxxxxxxxx> > > Currently, pointers to guest memory are passed to Hyper-V as > transaction IDs in netvsc. In the face of errors or malicious > behavior in Hyper-V, netvsc should not expose or trust the transaction > IDs returned by Hyper-V to be valid guest memory addresses. Instead, > use small integers generated by vmbus_requestor as requests > (transaction) IDs. > > Signed-off-by: Andres Beltran <lkmlabelt@xxxxxxxxx> > Co-developed-by: Andrea Parri (Microsoft) <parri.andrea@xxxxxxxxx> > Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@xxxxxxxxx> > Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx> I'm assuming this is targeting net-next? If so could you please tag it as [PATCH net-next vN]? > @@ -695,10 +695,19 @@ static void netvsc_send_tx_complete(struct net_device *ndev, > const struct vmpacket_descriptor *desc, > int budget) > { > - struct sk_buff *skb = (struct sk_buff *)(unsigned long)desc->trans_id; > + struct sk_buff *skb; > struct net_device_context *ndev_ctx = netdev_priv(ndev); Swap these two lines please to keep the variables declaration lines longest to shortest.