linux-kernel - Re: [PATCH v2] fs: block cross-uid sticky symlinks

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Message-ID: <20100531103510.GA30021@infradead.org>
Date:	Mon, 31 May 2010 06:35:10 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Kees Cook <kees.cook@...onical.com>
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-doc@...r.kernel.org,
	Randy Dunlap <rdunlap@...otime.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Kosina <jkosina@...e.cz>,
	Dave Young <hidave.darkstar@...il.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	James Morris <jmorris@...ei.org>,
	Eric Paris <eparis@...hat.com>,
	David Howells <dhowells@...hat.com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Tim Gardner <tim.gardner@...onical.com>,
	"Serge E. Hallyn" <serue@...ibm.com>
Subject: Re: [PATCH v2] fs: block cross-uid sticky symlinks

NAK for changing this in core code.  These are long-living and
documented semantics that we can't simply break, and as Alan mentioned
having there's good enough workaround that don't break applications.

Feel free to shovel it into the crackpot LSM of your choice.

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