diff --git a/mm/usercopy.c b/mm/usercopy.c
index 82f81df2edcf91fa0fec44d4d2563d02d7c56b27..a3cc3052f830a01d414c7ff90c375988561863e1 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -83,7 +83,7 @@ static bool overlaps(const void *ptr, unsigned long n, unsigned long low,
 	unsigned long check_high = check_low + n;
 
 	/* Does not overlap if entirely above or entirely below. */
-	if (check_low >= high || check_high < low)
+	if (check_low >= high || check_high <= low)
 		return false;
 
 	return true;