make valid flag false, not true, on overrun
Reported-by: Tom Lendacky <tahm@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
drivers/virtio/virtio_ring.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 57bf9d5..0ea0781 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -242,7 +242,7 @@ add_head:
* kicked_avail index we stored. TODO: make sure all drivers
* kick at least once in 2^16 and remove this. */
if (unlikely(vq->vring.avail->idx == vq->kicked_avail))
- vq->kicked_avail_valid = true;
+ vq->kicked_avail_valid = false;
pr_debug("Added buffer head %i to %p\n", head, vq);
END_USE(vq);
--
1.7.5.53.gc233e
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