From e084509cc5c6036e4d17d5c4ae4008d0c8862be6 Mon Sep 17 00:00:00 2001
From: netliomax25-code <netliomax25@gmail.com>
Date: Tue, 9 Jun 2026 12:26:40 +0530
Subject: [PATCH] check buffer before reading branch hint data byte

---
 core/iwasm/interpreter/wasm_loader.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/iwasm/interpreter/wasm_loader.c b/core/iwasm/interpreter/wasm_loader.c
index a2c67bea2c..36a5c3fadf 100644
--- a/core/iwasm/interpreter/wasm_loader.c
+++ b/core/iwasm/interpreter/wasm_loader.c
@@ -5681,6 +5681,7 @@ handle_branch_hint_section(const uint8 *buf, const uint8 *buf_end,
                 goto fail;
             }
 
+            CHECK_BUF(buf, buf_end, 1);
             uint8 data = *buf++;
             if (data == 0x00)
                 new_hint->is_likely = false;