From ddf6eb40c725434fec5341e73777a0d59e135287 Mon Sep 17 00:00:00 2001 From: nobu Date: Wed, 10 Sep 2014 08:05:12 +0000 Subject: variable.c: check index overflow * variable.c (rb_ivar_set), vm_insnhelper.c (vm_setivar): check instance variable index overflow. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47512 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- vm_insnhelper.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'vm_insnhelper.c') diff --git a/vm_insnhelper.c b/vm_insnhelper.c index c9ec803630..05ed3c62aa 100644 --- a/vm_insnhelper.c +++ b/vm_insnhelper.c @@ -570,8 +570,11 @@ vm_setivar(VALUE obj, ID id, VALUE val, IC ic, rb_call_info_t *ci, int is_attr) ic->ic_value.index = index; ic->ic_serial = RCLASS_SERIAL(klass); } + else if (index >= INT_MAX) { + rb_raise(rb_eArgError, "too many instance variables"); + } else { - ci->aux.index = index + 1; + ci->aux.index = (int)(index + 1); } } /* fall through */ -- cgit v1.2.3