On 10/15/21 11:25, Li Feng wrote:
On Fri, Oct 15, 2021 at 4:52 PM Maxime Coquelin
<maxime.coque...@redhat.com> wrote:

The title is too vague, I would put something like:

vhost: add sanity check on inflight last index

On 10/14/21 14:40, Li Feng wrote:
The idx in rte_vhost_set_last_inflight_io_split is from the frontend

s/idx/index/

driver, check if it's in the virtqueue range.

Fixes: bb0c2de9602b ("vhost: add APIs to operate inflight ring")
Cc: sta...@dpdk.org

Signed-off-by: Li Feng <fen...@smartx.com>
---
   lib/vhost/vhost.c | 3 +++
   1 file changed, 3 insertions(+)

diff --git a/lib/vhost/vhost.c b/lib/vhost/vhost.c
index 9540522dac..3b674ac320 100644
--- a/lib/vhost/vhost.c
+++ b/lib/vhost/vhost.c
@@ -1226,6 +1226,9 @@ rte_vhost_set_last_inflight_io_split(int vid, uint16_t 
vring_idx,
       if (unlikely(!vq->inflight_split))
               return -1;

+     if (unlikely(idx >= vq->size))
+             return -1;
+
       vq->inflight_split->last_inflight_io = idx;
       return 0;
   }


Other than that, this is fine to me:

Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>

If my suggestions are fine for you, I can fix while applying.

It's fine.

Thanks,
Maxime



Applied to dpdk-next-virtio/main.

Thanks,
Maxime

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