From 6db4589967706dce2e553a96a2ae939e72c06c29 Mon Sep 17 00:00:00 2001
From: Matt Valentine-House <matt@eightbitraptor.com>
Date: Tue, 8 Oct 2024 20:23:16 +0100
Subject: [PATCH] Assert that tbl_idx is always within range

---
 gc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gc.c b/gc.c
index 0dc62072de1b8a..38dc253fc8643e 100644
--- a/gc.c
+++ b/gc.c
@@ -3293,6 +3293,8 @@ rb_gc_vm_weak_tbl_iter(vm_tbl_iter_callback_func cb, vm_tbl_update_callback_func
 {
     rb_vm_t *vm = GET_VM();
 
+    GC_ASSERT(tbl_idx <= ALL_VM_WEAK_TABLES);
+
     struct global_vm_tbl_iter_data iter_data = {
         .callback = cb,
         .update_callback = ucb,