diff --git a/mm/damon/core.c b/mm/damon/core.c
index 949d5309d54d..cff932b3317d 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -354,12 +354,19 @@ int damon_set_regions(struct damon_target *t, struct damon_addr_range *ranges,
 {
 	struct damon_region *r, *next;
 	unsigned int i;
+	unsigned long last_end;
 	int err;
 
 	for (i = 0; i < nr_ranges; i++) {
-		if (ALIGN_DOWN(ranges[i].start, min_region_sz) >=
-				ALIGN(ranges[i].end, min_region_sz))
+		unsigned long start, end;
+
+		start = ALIGN_DOWN(ranges[i].start, min_region_sz);
+		end = ALIGN(ranges[i].end, min_region_sz);
+		if (start >= end)
 			return -EINVAL;
+		if (i > 0 && last_end > start)
+			return -EINVAL;
+		last_end = end;
 	}
 
 	/* Remove regions which are not in the new ranges */