Date: Wed, 17 Mar 1999 15:37:03 +0300 (MSK) From: Dmitry Valdov <dv@dv.ru> To: freebsd-current@freebsd.org, freebsd-security@freebsd.org Subject: Re: disk quota overriding Message-ID: <Pine.BSF.3.95q.990317153543.5316A-100000@xkis.kis.ru> In-Reply-To: <Pine.BSF.3.95q.990317143707.15120A-100000@xkis.kis.ru>
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Hi! I think that there is only one way to fix it - it's to disable making *hard*links to directory with mode 1777. On Wed, 17 Mar 1999, Dmitry Valdov wrote: > Date: Wed, 17 Mar 1999 14:42:46 +0300 (MSK) > From: Dmitry Valdov <dv@dv.ru> > To: freebsd-current@freebsd.org, freebsd-security@freebsd.org > Subject: disk quota overriding > > 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? > > Dmitry. > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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