fix: add flag when page-frame link

src/memory/page.c

@@ -44,7 +44,7 @@ void *alloc_pages(size_t size)
 				    PAGE_SIZE);
 			return NULL;
 		}
-		page_table_entries[i] = (uint32_t)frame << 12;
+		page_table_entries[i] = (uint32_t)frame << 12 | INIT_FLAGS;
 	}
 	return (void *)(page_table_entries[index] >> 12);
 }