[OLPC Security] Securing the laptop: DoS

[John Manoogian III (jm3)]

$0 & $0 &   is an old favorite of mine.

john manoogian III
http:/jm3.net

On 10/8/06, John Moser <john.r.moser at gmail.com> wrote:
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> Ivan Krstić wrote:
> > John Moser wrote:
> >> Ivan Krstic wrote:
> >>> The way I'm hoping to mitigate the NAND burn problem is by a combination
> >>> of rate limiting and hard write quotas.
> >> Both of which can lead to DoS
> >
> > There are some details involved here that make me suspect DoS is less of
> > a problem than it would be otherwise. Importantly, a misbehaving
>
> DoS would be less of a problem than destroying the disk, for sure.
>
> > application that triggers its rate limiting or write quota won't
> > interfere with other applications' write ops, so a malicious application
> > can only paint itself in a corner.
> >
>
> fork() bomb defuser as well?
>
>
> :(){ :|:;} :   # Standard CPU thrasher
>
>
> :(){ :&:& echo 'bleep!' >> ~/..bleep.$$ ; sleep 2; rm ~/..bleep.$$}; :
>     # Disk thrasher
>
> (This is off the cuff and I don't know that it does what I think it
> does; I *think* it spawns 2 :()'s in the background, writes "bleep!" to
> ~/..bleep.$$, waits 2 seconds, then removes ~/..bleep.$$)
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