Re: [PATCH net-next] hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer

2021-01-26 Thread Andrea Parri
On Tue, Jan 26, 2021 at 12:38:47PM +0100, Andrea Parri (Microsoft) wrote: > Pointers to receive-buffer packets sent by Hyper-V are used within the > guest VM. Hyper-V can send packets with erroneous values or modify > packet fields after they are processed by the guest. To defend against > these

[PATCH net-next] hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer

2021-01-26 Thread Andrea Parri (Microsoft)
Pointers to receive-buffer packets sent by Hyper-V are used within the guest VM. Hyper-V can send packets with erroneous values or modify packet fields after they are processed by the guest. To defend against these scenarios, copy (sections of) the incoming packet after validating their length an