linux-kernel - Re: devpts multiple instances feedback

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Message-ID: <20090126215853.5cb30d29@lxorguk.ukuu.org.uk>
Date:	Mon, 26 Jan 2009 21:58:53 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Christoph Hellwig <hch@....de>
Cc:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Christoph Hellwig <hch@....de>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: devpts multiple instances feedback

> > That was also one of the reasons for the default 000 mode on the pts/ptmx
> > device node
> 
> So just make it 000 but always created it.

That still allows it to be subverted with some security rulesets -
remember root can open a 000 file by default.

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