Re: [PATCH 2/2] kernel/fork: handle put_user errors for CLONE_PARENT_SETTID

[Oleg Nesterov]

I am not sure about these changes too, but

On 02/06, Linus Torvalds wrote:
>
> What's the upside? If somebody passes in a bad pointer, it's their
> problem.

Yes. But unless I am totally confused (quite possible) this put_user()
can fail even if the pointer is valid.

So at least I think Konstantin has found a real problem. Which (I think)
shoud be fixed, and this is not connected to fork.

> insane with the whole "readable vs writable" thing.

Agreed, this part doesn't look nice in any case.

Oleg.

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