Displaying 1 result from an estimated 1 matches for "d2c4eb9efd70b".
2020 Feb 14
0
[PATCH AUTOSEL 5.4 457/459] virtio_balloon: prevent pfn array overflow
...om>
Reviewed-by: David Hildenbrand <david at redhat.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
drivers/virtio/virtio_balloon.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index c962d9b370c69..d2c4eb9efd70b 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -157,6 +157,8 @@ static void set_page_pfns(struct virtio_balloon *vb,
{
unsigned int i;
+ BUILD_BUG_ON(VIRTIO_BALLOON_PAGES_PER_PAGE > VIRTIO_BALLOON_ARRAY_PFNS_MAX);
+
/*
* Set balloon pfns pointing...