Re: [Coverity] Untrusted user data in kernel

From: Oliver Neukum
Date: Fri Dec 17 2004 - 11:39:29 EST

> > Are you saying that processes with capability don't make mistakes? This isn't
> > a bug related to untrusted users doing privileged operations, it's a case of
> > using unchecked user data.
> >
> But isn't there always the possibility of "unchecked user data"?
> I can, as root, do `cp /dev/zero /dev/mem` and have the most
> spectacular crask you've evet seen. I can even make my file-
> systems unrecoverable.

Only if you have the capability for raw hardware access.
The same is true for the firmware interface. What other subsystems might
be dangerous?

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