linux-kernel - Re: [RFC v6 03/40] vfs: Add MAY_DELETE_SELF and MAY_DELETE

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Message-ID: <CAHc6FU41cZWJZ=4EZmBKwfhM4HPDBG9Gxuq9DUeLt2t0Lq4B=Q@mail.gmail.com>
Date:	Fri, 28 Aug 2015 23:08:00 +0200
From:	Andreas Gruenbacher <agruenba@...hat.com>
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	Andreas Gruenbacher <andreas.gruenbacher@...il.com>,
	linux-kernel@...r.kernel.org,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-nfs@...r.kernel.org, linux-api@...r.kernel.org,
	linux-cifs@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [RFC v6 03/40] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD
 permission flags

2015-08-28 22:44 GMT+02:00 J. Bruce Fields <bfields@...ldses.org>:
>> The MAY_DELETE_SELF permission does not override the sticky
>> directory check.  It probably should.
>
> I guess it would basically just let the file owner delegate permission
> to delete your file to a non-owner?  Makes sense to me to allow that.

Yes, independent of whether or not the process has MAY_DELETE_CHILD
access on the directory but not independent of the sticky directory
check, which is a bit of a weird combination.

Andreas
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