1 files changed, 2 insertions, 1 deletions

diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 755a42c76eb4..303c908790ef 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -101,7 +101,8 @@ void unset_migratetype_isolate(struct page *page, unsigned migratetype)
                         buddy_idx = __find_buddy_index(page_idx, order);
                         buddy = page + (buddy_idx - page_idx);
 
-                        if (!is_migrate_isolate_page(buddy)) {
+                        if (pfn_valid_within(page_to_pfn(buddy)) &&
+                            !is_migrate_isolate_page(buddy)) {
                                 __isolate_free_page(page, order);
                                 kernel_map_pages(page, (1 << order), 1);
                                 set_page_refcounted(page);