From 64baf54d8881e9475a9e579a82c0f6148022f350 Mon Sep 17 00:00:00 2001
From: funera1 <60760935+funera1@users.noreply.github.com>
Date: Tue, 3 Oct 2023 11:33:00 +0900
Subject: [PATCH] Fix label index out-of-range references in op_br_table_cache
 (#2615)

Fixed a bug in the processing of the br_table_cache opcode that caused out-of-range
references when the label index was greater than the length of the label.
---
 core/iwasm/interpreter/wasm_interp_classic.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/core/iwasm/interpreter/wasm_interp_classic.c b/core/iwasm/interpreter/wasm_interp_classic.c
index ce090d1f..50860d3a 100644
--- a/core/iwasm/interpreter/wasm_interp_classic.c
+++ b/core/iwasm/interpreter/wasm_interp_classic.c
@@ -1418,6 +1418,8 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
                 while (node_cache) {
                     node_next = bh_list_elem_next(node_cache);
                     if (node_cache->br_table_op_addr == frame_ip - 1) {
+                        if (lidx > node_cache->br_count)
+                            lidx = node_cache->br_count;
                         depth = node_cache->br_depths[lidx];
                         goto label_pop_csp_n;
                     }