VisionFive2 Linux kernel

author: Vincent Whitchurch <vincent.whitchurch@axis.com> 2021-07-01 13:46:52 +0200 committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-03 10:23:01 +0200 commit: 839815ea5f1d936ad1cd2a6c8bd134990d7582df parent: 2f18a3c91fded9c90f94b82f315635c58d87469a

Commit Summary:

virtio_vdpa: reject invalid vq indices

Diffstat:

1 file changed, 3 insertions, 0 deletions

diff --git a/drivers/virtio/virtio_vdpa.c b/drivers/virtio/virtio_vdpa.c
index e28acf482e0c..e9b9dd03f44a 100644
--- a/drivers/virtio/virtio_vdpa.c
+++ b/drivers/virtio/virtio_vdpa.c
@@ -149,6 +149,9 @@ virtio_vdpa_setup_vq(struct virtio_device *vdev, unsigned int index,
 	if (!name)
 		return NULL;
 
+	if (index >= vdpa->nvqs)
+		return ERR_PTR(-ENOENT);
+
 	/* Queue shouldn't already be set up. */
 	if (ops->get_vq_ready(vdpa, index))
 		return ERR_PTR(-ENOENT);