Commit bbc2c372 authored by Stefano Garzarella's avatar Stefano Garzarella Committed by Michael S. Tsirkin
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vringh: reset kiov 'consumed' field in __vringh_iov() 



__vringh_iov() overwrites the contents of riov and wiov, in fact it
resets the 'i' and 'used' fields, but also the 'consumed' field should
be reset to avoid an inconsistent state.

Acked-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20210315163450.254396-4-sgarzare@redhat.com


Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent f53d9910

drivers/vhost/vringh.c

+2 −2
Original line number Diff line number Diff line
@@ -290,9 +290,9 @@ __vringh_iov(struct vringh *vrh, u16 i, 
		return -EINVAL;



	if (riov)

		riov->i = riov->used = 0;

		riov->i = riov->used = riov->consumed = 0;

	if (wiov)

		wiov->i = wiov->used = 0;

		wiov->i = wiov->used = wiov->consumed = 0;



	for (;;) {

		void *addr;