[net,0/2] vsock/virtio: make the credit mechanism more robust

Message

Stefano Garzarella Oct. 17, 2019, 12:44 p.m. UTC

This series makes the credit mechanism implemented in the
virtio-vsock devices more robust.
Patch 1 sends an update to the remote peer when the buf_alloc
change.
Patch 2 prevents a malicious peer (especially the guest) can
consume all the memory of the other peer, discarding packets
when the credit available is not respected.

Stefano Garzarella (2):
  vsock/virtio: send a credit update when buffer size is changed
  vsock/virtio: discard packets if credit is not respected

 net/vmw_vsock/virtio_transport_common.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

Comments

David Miller Oct. 18, 2019, 5:20 p.m. UTC | #1

From: Stefano Garzarella <[e-mail]>
Date: Thu, 17 Oct 2019 14:44:01 +0200

> This series makes the credit mechanism implemented in the
> virtio-vsock devices more robust.
> Patch 1 sends an update to the remote peer when the buf_alloc
> change.
> Patch 2 prevents a malicious peer (especially the guest) can
> consume all the memory of the other peer, discarding packets
> when the credit available is not respected.

Series applied, thanks.