Vaio eeprom security issue

Greg KH greg at kroah.com
Mon Aug 11 22:46:10 CEST 2003


On Sat, Aug 09, 2003 at 09:17:17AM +0200, Jean Delvare wrote:
> 
> > > I'm not sure I get what you mean there (what are these CAP_*
> > > values?).
> > 
> > Different capability permission values.  Look in
> > include/linux/capability.h for more information.  It's more fine
> > grained than just "root".
> > 
> > Hope this helps,
> 
> Not really. Looks complicated ;) and it seems these are capabilities you
> give to a user/process, not to a file. I just don't want to dive into
> this for something that "simple".

Why?  Just check for CAP_SYS_ADMIN if the Vaio is detected.  If that
succeeds, then give access, otherwise deny it.

> Remember, the eeprom module, although widely used, is one of our least
> interesting drivers.

But it's fun to play with :)

> And LM Sensors is useless on Sony Vaio's anyway (no sensor chips).

Looks like the eeprom driver works :)

> So let's play it safe, but without extra technologies involved. Do not
> export the eeproms detected as Vaio's ones unless forced too.

What does "forced too" mean here?

thanks,

greg k-h



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