[ruby-core:80706] [Ruby trunk Bug#13412] Infinite recursion with define_method may cause silent SEGV or cfp consistency error

Issue #13412 has been updated by wanabe (_ wanabe).

File bug.sh added
File bug13412.r58367.patch added
File bug_stat.sh added

Here is another stat for association between first SEGV point and process result.

```
ruby 2.5.0dev (2017-04-16 trunk 58367) [x86_64-linux]
71 bug.*.cfp.noprev.BUG.txt
     71 #6   in vm_exec () at ../../vm.c:1759, #7   in invoke_bmethod () at ../../vm.c:982
793 bug.*.cfp.prev.BUG.txt
    724 #6   in vm_exec_core () at ../../vm_exec.c:49, #7   in vm_exec () at ../../vm.c:1769
     18 #6   in vm_exec () at ../../vm.c:1769, #7   in invoke_bmethod () at ../../vm.c:982
     17 #6   in vm_call_bmethod_body () at ../../vm_insnhelper.c:1885, #7   in vm_call_bmethod () at ../../vm_insnhelper.c:1909
     12 #6   in vm_search_method () at ../../vm_insnhelper.c:1234, #7   in vm_exec_core () at ../../insns.def:1079
      7 #6   in vm_call_bmethod () at ../../vm_insnhelper.c:1906, #7   in vm_exec_core () at ../../insns.def:1080
      5 #6   in vm_call_bmethod_body () at ../../vm_insnhelper.c:1892, #7   in vm_call_bmethod () at ../../vm_insnhelper.c:1909
      4 #6   in vm_search_method () at ../../vm_insnhelper.c:1235, #7   in vm_exec_core () at ../../insns.def:1079
      3 #6   in vm_exec_core () at ../../insns.def:1079, #7   in vm_exec () at ../../vm.c:1769
      3 #6   in rb_class_of () at ../../include/ruby/ruby.h:1965, #7   in vm_search_method () at ../../vm_insnhelper.c:1235
135 bug.pass.*.nocore.silent.txt
     23 #6   in vm_yield_setup_args () at ../../vm_insnhelper.c:2560, #7   in invoke_iseq_block_from_c () at ../../vm.c:1007
     22 #6   in vm_callee_setup_block_arg () at ../../vm_insnhelper.c:2519, #7   in vm_yield_setup_args () at ../../vm_insnhelper.c:2571
     20 #6   in invoke_iseq_block_from_c () at ../../vm.c:992, #7   in invoke_block_from_c_unsplattable () at ../../vm.c:1099
     11 #6   in invoke_block_from_c_unsplattable () at ../../vm.c:1095, #7   in vm_invoke_bmethod () at ../../vm.c:1140
     10 #6   in vm_push_frame () at ../../vm_insnhelper.c:179, #7   in invoke_bmethod () at ../../vm.c:973
      9 #6   in vm_invoke_bmethod () at ../../vm.c:1139, #7   in vm_call_bmethod_body () at ../../vm_insnhelper.c:1892
      7 #6   in vm_invoke_bmethod () at ../../vm.c:1140, #7   in vm_call_bmethod_body () at ../../vm_insnhelper.c:1892
      7 #6   in vm_callee_setup_block_arg () at ../../vm_insnhelper.c:2520, #7   in vm_yield_setup_args () at ../../vm_insnhelper.c:2571
      6 #6   in invoke_block_from_c_unsplattable () at ../../vm.c:1097, #7   in vm_invoke_bmethod () at ../../vm.c:1140
      5 #6   in vm_block_type () at ../../vm_core.h:1279, #7   in invoke_block_from_c_unsplattable () at ../../vm.c:1097
      3 #6   in vm_yield_setup_args () at ../../vm_insnhelper.c:2571, #7   in invoke_iseq_block_from_c () at ../../vm.c:1007
      3 #6   in simple_iseq_p () at ../../vm_insnhelper.c:1459, #7   in vm_callee_setup_block_arg () at ../../vm_insnhelper.c:2520
      3 #6   in rb_iseq_check () at ../../vm_core.h:416, #7   in invoke_iseq_block_from_c () at ../../vm.c:993
      3 #6   in invoke_iseq_block_from_c () at ../../vm.c:993, #7   in invoke_block_from_c_unsplattable () at ../../vm.c:1099
      3 #6   in invoke_block_from_c_unsplattable () at ../../vm.c:1099, #7   in vm_invoke_bmethod () at ../../vm.c:1140
```

----------------------------------------
Bug #13412: Infinite recursion with define_method may cause silent SEGV or cfp consistency error
https://bugs.ruby-lang.org/issues/13412#change-64252

* Author: wanabe (_ wanabe)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.5.0dev (2017-04-09 trunk 58286) [x86_64-linux]
* Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
The script causes silent (no output [BUG]) SEGV or "cfp consistency error" on my environment.

```ruby
define_method(:foo) { foo }

loop do
  1.times do
    1.times do
      begin
        foo
      rescue Exception
        nil
      end
    end
  end
end
```

I think this is related to #11430 (maybe same).

---Files--------------------------------
stderr.log (6.96 KB)
bug.rb (123 Bytes)
bug.sh (775 Bytes)
bug13412.r58331.patch (689 Bytes)
bug13412.r58367.patch (711 Bytes)
bug_stat.sh (296 Bytes)
bug.sh (786 Bytes)
bug_stat.sh (468 Bytes)
bug13412.r58367.patch (1 KB)


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