Re: AUDIT of 2.5.15 copy_to/from_user

David Woodhouse
2002-05-19T18:02:40Z

alan@lxorguk.ukuu.org.uk said:
> > > After that we always use __copy_from_user() and we trust it not to fail.
> > This is correct

> The only check done in access_ok on x86 is the 0xC0000000->0xFFFFFFFF
> check with isnt affected by remappings.

Right.... so trusting __copy_to_user() not to fail doesn't seem
particularly correct.

--
dwmw2