www.delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2025/12/14/04:13:08

DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 5BE9D8NE1102847
Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com
Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com
DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 5BE9D8NE1102847
Authentication-Results: delorie.com;
dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=ReGFaXP1
X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3F7CC4BA2E04
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
s=default; t=1765703587;
bh=Khd1ht6wBz/yWdIMamUTJSWcSp357sbqkvOG/1hamAk=;
h=Date:Subject:To:References:In-Reply-To:List-Id:List-Unsubscribe:
List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
From;
b=ReGFaXP1goT+KjVGULOhtgXMYQHF1fBf6MCKCHeQuhmRPzw0fJ1u1CFjDY7kTLBsF
Z4807wa/oMLcjJuMUs1p7U9yauYTe1R3WzdBxVUPXecUKRtu+Gjn8dbSRlGYhhMmNd
0/d7xyWkYtMMoFe8MMOA5L1p1HKft5IW2uhH7NiQ=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6626F4BA2E07
ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 6626F4BA2E07
ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1765703568; cv=none;
b=vB0LPEaRuskZktde/1icqcH5SLThrj8vd6SKZhdVbqoB/nrwG0aVWJssRtchWLZ9LfaXVoat0q27hzsk9ueWV5H9M7NwM/y6kBlvHpnOOemxJRzGsCBNedmuO50rZyJ1RHqrqRV1/Q+13Er/jy08FWeUckt6xraztrVIhAi1JD4=
ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key;
t=1765703568; c=relaxed/simple;
bh=2gwYs2d5PH5tY5hWtxQcg4MZaiM4onI6emiTvfx49Ws=;
h=DKIM-Signature:Message-ID:Date:MIME-Version:Subject:To:From;
b=TaFinzDfXb+KD4S1Oqt6hinVMqe5vCt1enWNP7EG7SQ2wTVHtfas9GZ8njxXU0Qa+ao7CxZG58KKJbpH6qEnDR4ItDpGR+NFsnUF/O4O6cSWF1hlhkccVYeeqbTGGzrNqj+BKskszZ9q1PuoaYoDtGtUkcYbFfyOQFAOF3SVz9k=
ARC-Authentication-Results: i=1; server2.sourceware.org
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6626F4BA2E07
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20230601; t=1765703567; x=1766308367;
h=content-transfer-encoding:in-reply-to:from:content-language
:references:to:subject:user-agent:mime-version:date:message-id
:x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id
:reply-to;
bh=klDm/MwU6eoebrOXevvHz+gXG9SApV5uI+Whw0T2yh8=;
b=re+rabLf/9Y/bixHYaiGmjUNoxet69dLY9pf+aWeIJFAumxVJuoPQICX3uzxsI50Ei
o7uRXxjl/OPupAkDVpVgqspnErGoxlEzlkIq29nkTXT59F911FULa6jw2C4RKryc6wvq
zh6W3RPFsHRtPPK4t5NQfk1zsOtx4TsW213g7w1GEvHdyrS3QD5/pWlaBaZxAw3MBbbf
3ReA0+RTuxbRf2Lqh6T37ckOYfMJGJGekTTCJHuTC9+ln3s/UH90Zjvgjpdj5lUJhlL/
pd1v+jqcQM3gh6LZLmUDEAbsyZCV5tG+WmbNYfvlNtlvzMMta0lTDaOafxMAOAMTIa2b
0B7Q==
X-Gm-Message-State: AOJu0Yx5kDrxjmr98uC3F9MVwnq8ndHKh372J06OtlK2qRQSsY+exKUc
btfArEPX0xfYhFsyQDx2xOvmSznhu7nzV6QSHe7pntcvr+hMPPTyPfZNeVrKzg==
X-Gm-Gg: AY/fxX44L8YNe2xbU2rgFbX6hrEvuCrw44+Cfsf0N4m1cH6UyxIH8o6UDA0FiW4FQ7o
OOru1LHJjhhGjOnEv3ig6StQY56aVhSL5CltKWHCb1oOuj/jK83WCAObTwgkXMBrlUFvK4wxMIh
1BKRx9M1bP5/Fa0vS5cr+hJhtqIeodI5+p88FDoGh8u5kEsh1IVtXj27vHoBNRwfNtk74+T+2Wx
uRtUE1oJP7Z9WynspcNbeFxBZ5W4GmhGTyr93XofiVIXxzjoKpvVggsH5+lKZqEQ02bQDjLc0qk
lfcTfAntFc4KEEXqIk+mphW0zLPw/b9i9AQJoopnawD3ALyt3wP0de4z6DNtggSpQJ0w9L9I9Vl
xPmmqvPCH5gnKZoGaqc2p6+ShalHaIZfH+pvi8C1w15DiRLiY3ylCBadM5EVBS+nNjVAO+KacFR
e3wwOjcKl23WQIVDYBwyUlMJPj7FicRmAM3vVIjVRIsT+2gpQCvrhXvSZiB72wtZrIY33N
X-Google-Smtp-Source: AGHT+IGp6e/XrkQG1XUkfwPBXJf9kPuD21+Agi2k+TUBYw7fUFrkCuccp/sDhRwiNuo2M81jDHBoWA==
X-Received: by 2002:a05:600c:3104:b0:477:fcb:2256 with SMTP id
5b1f17b1804b1-47a8f906dd3mr77314435e9.17.1765703567134;
Sun, 14 Dec 2025 01:12:47 -0800 (PST)
Message-ID: <0735a463-7382-4374-8b94-b2fe616b5986@gmail.com>
Date: Sun, 14 Dec 2025 10:12:45 +0100
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Subject: Re: group '545' does not exist ?
To: cygwin AT cygwin DOT com
References: <3a9f1d9a-d363-4617-bc24-e2b5aa4d27e9 AT gmail DOT com>
<CAKAoaQntTmvE8EbKCiJMcySrhHG91a947A8WTvKkv3H6LzhsHg AT mail DOT gmail DOT com>
<48e6fb4c-2341-4f43-b158-d70a9b391f91 AT gmail DOT com>
<de6f8c31-2e4d-48e3-af61-6e6a2b640f79 AT dronecode DOT org DOT uk>
<a3be4a15-ff9b-4056-9982-b991eed1a430 AT SystematicSW DOT ab DOT ca>
<89866400-5131-4790-aa55-542e451ab197 AT gmail DOT com>
<aTLSsHtxB_8ssxWU AT calimero DOT vinschen DOT de>
<aTMkqp9bwoz7E0-X AT calimero DOT vinschen DOT de>
<aTMpECmWwfXmUE7Q AT calimero DOT vinschen DOT de>
In-Reply-To: <aTMpECmWwfXmUE7Q@calimero.vinschen.de>
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.30
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Marco Atzeri via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>
X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 5BE9D8NE1102847

On 05/12/2025 19:48, Corinna Vinschen via Cygwin wrote:

>> Right now, our newgrp is commandline compatible with Linux' newgrp from
>> shadow-utils:
>>
>> - A single '-' reinitializes the environment.
>> - The group must be given as name, not as GID.
>>

Hi Corinnathe current version of newgroup is NOT doing so.
It spins a new shell process

$ pstree
?─┬─?───sshd
   ├─mintty───bash───pstree
   └─ssh-agent

$ newgrp - Users

$ pstree
?─┬─?───sshd
   ├─mintty───bash───bash───pstree
   └─ssh-agent


Noticed as it is very easy to bomb the enviroment.

Regards
Marco



-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019