Re: [Off Topic Conspiracy Theories] RE: UDI and Free(tm) Software

Khimenko Victor (khim@sch57.msk.ru)
Fri, 9 Oct 1998 03:14:54 +0400 (MSD)


8-Oct-98 02:07 you wrote:
>> What about security. If a binary only UDI driver is available, will I
>> risk my system's security by plugging it in to my Linux kernel?

> Actually, UDI opens up some interesting possibilities for *increasing*
> system security in the light of untrusted drivers. The UDI APIs are
> designed so that an OS could, if it chose to, run a driver in its own
> private address space, thereby preventing core kernel corruption from
> stray pointers or deliberate misuse, in much the way user applications
> are prevented from corrupting the kernel (though not necessarily with
> the same overhead cost).

> Presumably, such an OS would provide a way to configure the level of
> trust on a per-driver (or even device) basis.

Great! Why we need to artifactually create enemy just to start war with them ?
How long this war will lasts if you'll have buggy driver for SCSI adapter to
which disk drive with swap file is connected ? Or buggy network driver for
computers without disk and swap over NFS ? How much you benefit from
"uncorruped kernel" with totaly destroyed swap ? If you have buggy driver for
essentional hardware you could not protect OS, good API or bad API.

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