GPU chips vs Video Cards

Tim ignored_mailbox at yahoo.com.au
Tue Dec 23 22:09:47 UTC 2008


On Tue, 2008-12-23 at 16:34 -0500, Dave Feustel wrote:
> Various OpenBSD developers have stated that there are OS
> vulnerabilities introduced by the use of video card hardware features
> by X. It's been a while since I read the details, but I wonder if the
> GPU chips might be able to run in user (non-priviledged) mode only,
> thus precluding the possibility of exploits based upon direct hardware
> access given the video card software.

Are you sure that's not just issues because of X, and maybe drivers, not
the actual graphics cards, themselves? 

If anything, I'd expect more issues with GPUs, as they're not all just
usable for graphics, some are usable as an additional CPU for other
purposes.

-- 
[tim at localhost ~]$ uname -r
2.6.27.7-53.fc9.i686

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