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Message-Id: <201104011437.24983.ludwig.nussel@suse.de>
Date: Fri, 1 Apr 2011 14:37:24 +0200
From: Ludwig Nussel <ludwig.nussel@...e.de>
To: oss-security@...ts.openwall.com
Subject: Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
Patrick J. Volkerding wrote:
> On 03/31/2011 08:43 AM, Dan Rosenberg wrote:
> > I'd also
> > like to see distributions migrating away from /etc/mtab in general,
> > since /proc/mounts seems like a much better replacement.
>
> I imagine that mount's -f (fake mount by editing mtab) and -n (mount
> without editing mtab) options are not going to work if /etc/mtab becomes
> a symbolic link to /proc/mounts, so that's liable to break a few things.
> In the long run it does seem like a good plan, but there might be a
> few bumps in the road. I wonder what the rationale was for faking mtab
> mounts in the first place?
Our system boot scripts used -n as long as / was mounted read only
and -f to update mtab once / was remounted rw.
Since openSUSE 11.4 /etc/mtab is a symlink to /proc/self/mounts
which works fine so far AFAIK.
cu
Ludwig
--
(o_ Ludwig Nussel
//\
V_/_ http://www.suse.de/
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