Re: [PATCH v4 1/5] uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME

[Borislav Petkov]

On Fri, Nov 21, 2014 at 01:26:07PM -0800, Andy Lutomirski wrote:
> x86 call do_notify_resume on paranoid returns if TIF_UPROBE is set
> but not on non-paranoid returns.  I suspect that this is a mistake
> and that the code only works because int3 is paranoid.
> 
> Setting _TIF_NOTIFY_RESUME in the uprobe code was probably a
> workaround for the x86 bug.  With that bug fixed, we can remove
> _TIF_NOTIFY_RESUME from the uprobes code.
> 
> Acked-by: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
> Reported-by: Oleg Nesterov <oleg@xxxxxxxxxx>
> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxxxxxx>

Acked-by: Borislav Petkov <bp@xxxxxxx>

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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