How to take down a system to the point of requiring a newfs
with one line of C (userland)
ady at freebsd.ady.ro
Mon Feb 18 14:48:38 UTC 2008
I would agree with Mark and Jim, this is a serious issue for enterprise
servers. Yet another example where I would have wanted to see a more
supportive response from the FreeBSD project members, like Robert Watson
just did. This would benefit keeping a good relation with the business
ROFUG / EnterpriseBSD
On Feb 18, 2008 4:14 PM, Mark Andrews <Mark_Andrews at isc.org> wrote:
> > Patient: Doctor, it hurts when I do this!
> > Doctor: Don't do that...
> Did you actually bother to read his report?
> While his example is used "/", if the report is correct then you
> just need to replace "/" with the path of any file system mount
> point that is world writable like say "/tmp".
> Do you have /tmp mounted like this?
> /dev/ad0s4e 507630 162050 304970 35% /tmp
> Have you tried using "/tmp" or some other suitable mount point
> before slinging off with the old Doctor joke?
> Even if it is only "/", having the system die and not be recoverable
> due to having a excessive number of files in "/" is a critical
> error. I'm sure you have *never* accidently copied a set of files
> to "/" in your life. Me, I know I've made that sort of mistake in
> the past, and as I'm not perfect, I'm sure I'll make that sort of
> mistake at some point in the future. I would however like the
> machine not to fallover when I do make that mistake.
> Now why don't you be constructive and verify whether the report is
> valid or not. I don't have a spare machine to test it on so I'm
> not going to attempt it.
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org
> freebsd-security at freebsd.org mailing list
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