Re: AUDIT of 2.5.15 copy_to/from_user

From: David Woodhouse (dwmw2@infradead.org)
Date: Sun May 19 2002 - 13:02:27 EST

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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

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