From: Ippei Obayashi <redmine@...>
Date: 2010-11-07T18:32:26+09:00
Subject: [ruby-dev:42546] [Ruby 1.9-Bug#4033][Open] Segmentation fault : ext/openssl:OpenSSL::X509::StoreContext#cleanup

Bug #4033: Segmentation fault : ext/openssl:OpenSSL::X509::StoreContext#cleanup
http://redmine.ruby-lang.org/issues/show/4033

起票者: Ippei Obayashi
ステータス: Open, 優先度: Normal
カテゴリ: ext
ruby -v: ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux]

以下のコードがSegmentation faultで止まります。
---
require 'openssl'
cert = OpenSSL::X509::Certificate.new
store = OpenSSL::X509::Store.new
ctx = OpenSSL::X509::StoreContext.new(store, cert, [])
ctx.cleanup
ctx.verify
---

% ruby-1.9.2-p0 contextbug.rb
contextbug.rb:6: [BUG] Segmentation fault
ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux]

-- control frame ----------
c:0004 p:---- s:0012 b:0012 l:000011 d:000011 CFUNC  :verify
c:0003 p:0109 s:0009 b:0009 l:000fd8 d:001ba0 EVAL   contextbug.rb:6
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:000fd8 d:000fd8 TOP   
---------------------------
-- Ruby level backtrace information ----------------------------------------
contextbug.rb:6:in `<main>'
contextbug.rb:6:in `verify'

-- C level backtrace information -------------------------------------------
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9(rb_vm_bugreport+0x5f) [0x7f4d8aa1ec1f]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9 [0x7f4d8a8fc0dc]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9(rb_bug+0xb3) [0x7f4d8a8fc253]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9 [0x7f4d8a9ada9c]
/lib/libpthread.so.0 [0x7f4d8a689a80]
/usr/lib/libcrypto.so.0.9.8(X509_verify_cert+0x84) [0x7f4d84d3dfa4]
/home/ohai/opt/ruby-1.9.2-p0/lib/ruby/1.9.1/x86_64-linux/openssl.so [0x7f4d85246f37]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9 [0x7f4d8aa18f1f]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9 [0x7f4d8aa0cf09]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9 [0x7f4d8aa13103]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9(rb_iseq_eval_main+0x27c) [0x7f4d8aa1347c]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9 [0x7f4d8a90029b]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9(ruby_exec_node+0x19) [0x7f4d8a9002c9]
/home/ohai/opt/ruby-1.9.2-p0/lib/libruby.so.1.9(ruby_run_node+0x1e) [0x7f4d8a901e0e]
ruby-1.9.2-p0(main+0x4f) [0x40099f]
/lib/libc.so.6(__libc_start_main+0xe6) [0x7f4d89a7e1a6]
ruby-1.9.2-p0 [0x400889]

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

[1]    6994 abort      ruby-1.9.2-p0 contextbug.rb
---
http://www.openssl.org/docs/crypto/X509_STORE_CTX_new.html によると、

X509_STORE_CTX_cleanup() internally cleans up an X509_STORE_CTX structure. 
The context can then be reused with an new call to X509_STORE_CTX_init(). 

とのことです。


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