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Date: | Sat, 9 Mar 2019 01:21:27 +0900 |
From: | Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp> |
To: | cygwin AT cygwin DOT com |
Subject: | Re: Logging-in using ssh elevates the user privilege. |
Message-Id: | <20190309012127.d42ac7108c1fb29f7108e606@nifty.ne.jp> |
In-Reply-To: | <20190308155635.GP3785@calimero.vinschen.de> |
References: | <20190307010000 DOT fc28b73739c2dd66e609982b AT nifty DOT ne DOT jp> <381052629 DOT 20190307141955 AT yandex DOT ru> <51233666 DOT 20190307182445 AT yandex DOT ru> <20190308230138 DOT b7f6b5ac90c9a14cde2647c1 AT nifty DOT ne DOT jp> <20190308141118 DOT GM3785 AT calimero DOT vinschen DOT de> <20190309003908 DOT 52b91dd113d07f9ee1025d4c AT nifty DOT ne DOT jp> <20190308155635 DOT GP3785 AT calimero DOT vinschen DOT de> |
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On Fri, 8 Mar 2019 16:56:35 +0100 Corinna Vinschen wrote: > > Does this affect to listen() as well? > > No, listen isn't affected. The cause is failure of setsockopt(). setsockopt() before accept() failed with EALREADY. I looked into fhandler_sock_local.cc. In fhandler_socket_local::af_local_set_no_getpeereid(), connect_state() is checked if it is 'unconnected', however, it is 'listener' after listen() is called. So it failed. -- Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp> -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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