[ruby-core:121194] [Ruby master Bug#21161] Crash when locale is set to Turkish tr_TR.UTF-8
From:
"srbaker (Steven Baker) via ruby-core" <ruby-core@...>
Date:
2025-02-27 13:59:16 UTC
List:
ruby-core #121194
Issue #21161 has been updated by srbaker (Steven Baker).
I have confirmed this does not affect any 3.x versions before 3.4.
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Bug #21161: Crash when locale is set to Turkish tr_TR.UTF-8
https://bugs.ruby-lang.org/issues/21161#change-112130
* Author: srbaker (Steven Baker)
* Status: Open
* ruby -v: ruby 3.4.2 (2025-02-15 revision d2930f8e7a) +PRISM [x86_64-linux]
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
----------------------------------------
TL;DR this bug was reported in our tracker, and I'm pushing it upstream: https://bugzilla.opensuse.org/show_bug.cgi?id=1237861
When the locale is set to `tr_TR.UTF-8`, there is an encoding error. It has been narrowed down specifically to setting `LC_CTYPE`.
To reproduce simply run `LC_CTYPE=tr_TR.UTF-8 ruby -e "puts 42"`
Example from a fresh 3.4.2 install:
``` shell
srbaker@geekopad:~> LC_CTYPE=tr_TR.UTF-8 ruby -e "puts 42"
/home/srbaker/.local/share/mise/installs/ruby/3.4.2/lib64/ruby/3.4.0/rubygems.rb:9:in 'Kernel#require': /home/srbaker/.local/share/mise/installs/ruby/3.4.2/lib64/ruby/3.4.0/x86_64-linux/rbconfig.rb:1: unknown or invalid encoding in the magic comment (ArgumentError)
> 1 | # encoding: ascii-8bit
| ^~~~~~~~~~
2 | # frozen-string-literal: false
3 | #
from /home/srbaker/.local/share/mise/installs/ruby/3.4.2/lib64/ruby/3.4.0/rubygems.rb:9:in '<top (required)>'
from <internal:gem_prelude>:2:in 'Kernel#require'
from <internal:gem_prelude>:2:in '<internal:gem_prelude>'
```
This reproduces across multiple installs of ruby: from our packages, locally built on both GNU/Linux and macOS.
It looks like it's related to some normalisation on lowercase i, which in Turkish appears to produce a lowercase i without a dot, and the string. Details in our bug linked above.
--
https://bugs.ruby-lang.org/
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