Date: Wed, 17 Mar 1999 08:50:50 -0300 (GMT) From: Fernando Schapachnik <fpscha@ns1.sminter.com.ar> To: dv@dv.ru (Dmitry Valdov) Cc: freebsd-current@FreeBSD.ORG, freebsd-security@FreeBSD.ORG Subject: Re: disk quota overriding Message-ID: <199903171150.IAA23361@ns1.sminter.com.ar> In-Reply-To: <Pine.BSF.3.95q.990317143707.15120A-100000@xkis.kis.ru> from Dmitry Valdov at "Mar 17, 99 02:42:46 pm"
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Are you aware that, due to nature of hardlinks the only extra space is
same that for an empty file? Due to this, how many empty files do you
think it takes to eat the whole space of / ?
I'm I loosing something?
Regards.
En un mensaje anterior, Dmitry Valdov escribió:
> Hi!
>
> There is a way to overflow / filesystem even is quota is enabled.
>
> Just make many hard links (for example /bin/sh) to /tmp/
>
> for ($q=0;$q<100000;$q++){
> system ("ln /bin/sh /tmp/ln$q");
> }
>
> Because /tmp directory usually owned by root that why quotas has no effect.
> *Directory* size of /tmp can be grown up to available space on / filesystem.
>
> Any way to fix it?
Fernando P. Schapachnik
Administracion de la red
VIA Net Works Argentina SA
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