[ruby-core:123884] [Ruby Bug#21705] `UNIXServer.open(nil)` segfaults on Windows

23 Nov 2025


      Issue #21705 has been reported by nobu (Nobuyoshi Nakada).

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Bug #21705: `UNIXServer.open(nil)` segfaults on Windows
https://bugs.ruby-lang.org/issues/21705

* Author: nobu (Nobuyoshi Nakada)
* Status: Open
* Backport: 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED
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It should check the type of the argument and coercion before converting the encoding.


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