From 195af525fba4dcf8900dbf7e67f0e8e3d62f9911 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Sat, 1 Apr 2017 12:42:11 +0900
Subject: Expand stack for method_missing; fix #3528

---
 src/vm.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/vm.c b/src/vm.c
index 24a0a1db8..aa8b171bd 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1227,6 +1227,10 @@ RETRY_TRY_BLOCK:
         mid = missing;
         if (n != CALL_MAXARGS) {
           mrb_value blk = regs[bidx];
+
+          if (a+2 > irep->nregs) {
+            stack_extend(mrb, a+2, a+n+1);
+          }
           regs[a+1] = mrb_ary_new_from_values(mrb, n, regs+a+1);
           regs[a+2] = blk;
           n = CALL_MAXARGS;
-- 
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