Re: hard links on Linux create local DoS vulnerability and security problems

[Trent Petrasek <tpetrasek () internap com>]

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Not sure what systems you may be referring to, but in my experience, /tmp is mounted as a device or mounted as swap, 
thus violating the 'cross-device' limitation of a hard link.

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 Trenton Petrasek         
 tpetrasek () internap com
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On Mon, Nov 24, 2003 at 07:38:38PM +0100, Carl Ekman <calle () gosig nu> wrote:
> Since many systems have /tmp on the root filesystem /tmp could also be used to 
> link to setuid binaries.
>
> > The link to setuid programs is more of concern except that it won't be able
> > to happen unless you have setuid-root programs in a home directory
> > partition, which sounds bad anyway.
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