From: "Eregon (Benoit Daloze)" <redmine@...>
Date: 2013-07-18T19:50:42+09:00
Subject: [ruby-core:56074] [ruby-trunk - Bug #8654] SEGV in Array#count


Issue #8654 has been updated by Eregon (Benoit Daloze).

File 0001-array.c-rb_ary_count-check-length-to-avoid-SEGV.patch added

What do you think of this patch?

I am not sure assert_in_out_err is good for segfaults checks,
but I could not reproduce so reliably when removing the "p i".
----------------------------------------
Bug #8654: SEGV in Array#count
https://bugs.ruby-lang.org/issues/8654#change-40568

Author: Glass_saga (Masaki Matsushita)
Status: Assigned
Priority: Normal
Assignee: Glass_saga (Masaki Matsushita)
Category: core
Target version: current: 2.1.0
ruby -v: ruby 2.1.0dev (2013-07-18 trunk 42039) [x86_64-linux]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


Following code causes SEGV.

a1 = []
a2 = Array.new(100) {|i| i }
a2.count do |i|
  p i
  a2.replace(a1) if i == 0
end


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