From: YueHaibing <yuehaibing@xxxxxxxxxx>
commit df0bfe7501e9319546ea380d39674a4179e059c3 upstream.
'desc' should be freed before leaving from err handing path.
Fixes: 1ce9e6055fa0 ("virtio_ring: introduce packed ring support")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/virtio/virtio_ring.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -993,6 +993,7 @@ static int virtqueue_add_indirect_packed
if (unlikely(vq->vq.num_free < 1)) {
pr_debug("Can't add buf len 1 - avail = 0\n");
+ kfree(desc);
END_USE(vq);
return -ENOSPC;
}
