From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
To: linux-kernel@vger.kernel.org
Cc: Herbert Poetzl <herbert@13thfloor.at>
Subject: Re: file attributes (ext2/3) in 2.4.26
Date: Thu, 20 May 2004 18:59:09 -0300 [thread overview]
Message-ID: <20040520215909.GB21344@logos.cnet> (raw)
In-Reply-To: <20040517185141.GA23102@MAIL.13thfloor.at>
On Mon, May 17, 2004 at 08:51:41PM +0200, Herbert Poetzl wrote:
>
> Hi Folks!
>
> is it intentional that the file attributes
> (those accessible with chattr -*) are modifyable
> even if a file has the 'i' immutable flag set,
> and the user is lacking CAP_IMMUTABLE (or all
> CAPs if you prefer that ;)
>
> # touch /tmp/x
> # chattr +iaA /tmp/x
>
> # lcap -z
> # chattr -i /tmp/x
> chattr: Operation not permitted while setting flags on /tmp/x
>
> # chattr -A /tmp/x
> # lsattr /tmp/x
> ----ia------- /tmp/x
>
> I'd consider this a bug, but it might be some
> strange posix/linux conformance issue too ...
>
> let me know if this _is_ a bug, if so, I'm
> willing to provide patches to fix it ...
Hi Herbert,
The chattr man page says
A file with the `i' attribute cannot be modified: it cannot be deleted
or renamed, no link can be created to this file and no data can be
written to the file. Only the superuser or a process possessing the
CAP_LINUX_IMMUTABLE capability can set or clear this attribute.
You still can modify other flags from the file, right?
next prev parent reply other threads:[~2004-05-20 21:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-17 18:51 file attributes (ext2/3) in 2.4.26 Herbert Poetzl
2004-05-20 21:59 ` Marcelo Tosatti [this message]
2004-05-20 22:48 ` Herbert Poetzl
2004-05-31 15:05 ` Marcelo Tosatti
2004-05-31 16:08 ` Herbert Poetzl
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