From de7245982714246631617299b6501fa0a0f472d7 Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 19 Sep 2007 02:13:21 +0000
Subject: 	* bignum.c (bigtrunc): RBIGNUM(x)->len may be zero.  out of
 bound 	  access.  [ruby-dev:31404]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@13468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 bignum.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'bignum.c')

diff --git a/bignum.c b/bignum.c
index 547759f099..788eb4bfd2 100644
--- a/bignum.c
+++ b/bignum.c
@@ -103,6 +103,7 @@ bigtrunc(x)
     long len = RBIGNUM(x)->len;
     BDIGIT *ds = BDIGITS(x);
 
+    if (len == 0) return x;
     while (--len && !ds[len]);
     RBIGNUM(x)->len = ++len;
     return x;
-- 
cgit v1.2.3