1 files changed, 2 insertions, 1 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index eaa64d2ffdc5..6cbde310abed 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -873,7 +873,8 @@ done_merging:
                 higher_page = page + (combined_pfn - pfn);
                 buddy_pfn = __find_buddy_pfn(combined_pfn, order + 1);
                 higher_buddy = higher_page + (buddy_pfn - combined_pfn);
-                if (page_is_buddy(higher_page, higher_buddy, order + 1)) {
+                if (pfn_valid_within(buddy_pfn) &&
+                    page_is_buddy(higher_page, higher_buddy, order + 1)) {
                         list_add_tail(&page->lru,
                                 &zone->free_area[order].free_list[migratetype]);
                         goto out;