add expected_size > max_slab_size_class check for h_free_sized

Author: rdevshp

h_malloc.c

@@ -1748,6 +1748,10 @@ EXPORT void h_free_sized(void *p, size_t expected_size) {
     expected_size = adjust_size_for_canary(expected_size);
 
     if (p < get_slab_region_end() && p >= ro.slab_region_start) {
+        if (unlikely(expected_size > max_slab_size_class)) {
+            fatal_error("sized deallocation mismatch (small)");
+        }
+
         thread_unseal_metadata();
         expected_size = get_size_info(expected_size).size;
         deallocate_small(p, &expected_size);