diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8439d2a..947a7e9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5565,6 +5565,17 @@
 bool is_pageblock_removable_nolock(struct page *page)
 {
 	struct zone *zone = page_zone(page);
+	unsigned long pfn = page_to_pfn(page);
+
+	/*
+	 * We have to be careful here because we are iterating over memory
+	 * sections which are not zone aware so we might end up outside of
+	 * the zone but still within the section.
+	 */
+	if (!zone || zone->zone_start_pfn > pfn ||
+			zone->zone_start_pfn + zone->spanned_pages <= pfn)
+		return false;
+
 	return __count_immobile_pages(zone, page, 0);
 }