[ruby-core:124065] [Ruby Bug#21705] `UNIXServer.open(nil)` segfaults on Windows

8 Dec 2025


      Issue #21705 has been updated by k0kubun (Takashi Kokubun).

Backport changed from 3.2: REQUIRED, 3.3: DONE, 3.4: REQUIRED to 3.2: REQUIRED, 3.3: DONE, 3.4: DONE

ruby_3_4 commit:955decc1da6cd2441c24d22e8909a3e995973769 merged revision(s) commit:beb85e7eeee4163cd45b69645a60cdb942f72c05.

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Bug #21705: `UNIXServer.open(nil)` segfaults on Windows
https://bugs.ruby-lang.org/issues/21705#change-115502

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

https://github.com/ruby/ruby/pull/15302


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