diff options
Diffstat (limited to 'drivers/vhost/vdpa.c')
| -rw-r--r-- | drivers/vhost/vdpa.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 80184153ac7d..c4d53ff06bf8 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -623,7 +623,8 @@ static int vhost_vdpa_process_iotlb_update(struct vhost_vdpa *v, long pinned; int ret = 0; - if (msg->iova < v->range.first || + if (msg->iova < v->range.first || !msg->size || + msg->iova > U64_MAX - msg->size + 1 || msg->iova + msg->size - 1 > v->range.last) return -EINVAL; |