From 3cce6fdaacfaee598707e2fc135b608cb6c453b8 Mon Sep 17 00:00:00 2001
From: Zhenwei Jin <109658203+kylo5aby@users.noreply.github.com>
Date: Mon, 12 May 2025 10:21:45 +0800
Subject: [PATCH] avoid access null pointer (#4262)

---
 core/iwasm/interpreter/wasm_loader.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/iwasm/interpreter/wasm_loader.c b/core/iwasm/interpreter/wasm_loader.c
index 13fd61e7c..8fbfea36b 100644
--- a/core/iwasm/interpreter/wasm_loader.c
+++ b/core/iwasm/interpreter/wasm_loader.c
@@ -820,7 +820,8 @@ load_init_expr(WASMModule *module, const uint8 **p_buf, const uint8 *buf_end,
 #else
                 cur_value.gc_obj = NULL_REF;
 
-                if (!is_byte_a_type(type1)) {
+                if (!is_byte_a_type(type1)
+                    || wasm_is_type_multi_byte_type(type1)) {
                     p--;
                     read_leb_uint32(p, p_end, type_idx);
                     if (!check_type_index(module, module->type_count, type_idx,