[ruby-core:102635] [Ruby master Bug#17661] IO#each will segfault when if file is closed inside an `each_byte` block

Issue #17661 has been updated by xtkoba (Tee KOBAYASHI).


Probably `'s|http://||'` to the reproducer?

----------------------------------------
Bug #17661: IO#each will segfault when if file is closed inside an `each_byte` block
https://bugs.ruby-lang.org/issues/17661#change-90627

* Author: tenderlovemaking (Aaron Patterson)
* Status: Open
* Priority: Normal
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
As reported here: https://twitter.com/asterite/status/1363487990203506689 when iterating through a file's contents with #each_byte, if the filehandle is closed inside of the block yielded to by #each byte, this condition is not detected, and a segmentation fault is thrown.

Repro:

```ruby
file = http://File.open(__FILE__)
file.each_byte do |byte|
  p byte
  file.close
end
```

Proposed fix is here: https://github.com/ruby/ruby/pull/4217



-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:[e-mail]?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>