From 641fc9902f6dd8c7b647a1bd61ee6fd9243acb34 Mon Sep 17 00:00:00 2001
From: Masamitsu MURASE <masamitsu.murase@gmail.com>
Date: Sun, 3 Feb 2013 16:32:30 +0900
Subject: Prevent overflow of `Fixnum#to_s`.

---
 src/numeric.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/numeric.c')

diff --git a/src/numeric.c b/src/numeric.c
index 8bf2b3382..f6894a57b 100644
--- a/src/numeric.c
+++ b/src/numeric.c
@@ -1160,7 +1160,7 @@ fix_minus(mrb_state *mrb, mrb_value self)
 mrb_value
 mrb_fix2str(mrb_state *mrb, mrb_value x, int base)
 {
-  char buf[64], *b = buf + sizeof buf;
+  char buf[sizeof(mrb_int)*CHAR_BIT+2], *b = buf + sizeof buf;
   mrb_int val = mrb_fixnum(x);
   int neg = 0;
 
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