[ruby-core:123835] [Ruby Bug#21694] Crash when looking up super method from BasicObject

17 Nov 2025


      Issue #21694 has been reported by byroot (Jean Boussier).

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Bug #21694: Crash when looking up super method from BasicObject
https://bugs.ruby-lang.org/issues/21694

* Author: byroot (Jean Boussier)
* Status: Open
* Backport: 3.2: DONTNEED, 3.3: DONTNEED, 3.4: REQUIRED
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Initially reported on Reddit by easydwh https://old.reddit.com/r/ruby/comments/1ozhupr/is_a_ruby_segmentation_fault_...

Repro:

```ruby
class BasicObject
  def basic_call_no_super
    super
  end
end

"test".basic_call_no_super
```


-- 
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