Re: AUDIT: copy_from_user is a deathtrap.

Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 22 May 2002 23:02:38 +0100 (BST)

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> write might be the easy case. But what about read?
> Is a failing read allowed to change the userspace
> memory?

Dave actually tried this with the UDP receive code. The answer appears to be
yes but not everything likes it when it occurs
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