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Date:   Mon, 20 Feb 2017 13:42:35 +0200
From:   Andy Shevchenko <>
To:     Elena Reshetova <>
Cc:     "" <>,
        "Peter Zijlstra (Intel)" <>,
        Greg Kroah-Hartman <>,
        Andrew Morton <>,, Ingo Molnar <>,
        Alexey Dobriyan <>,
        "Serge E. Hallyn" <>,,
Subject: Re: [PATCH 0/3] ipc subsystem refcounter conversions

On Mon, Feb 20, 2017 at 1:29 PM, Elena Reshetova
<> wrote:
> Now when new refcount_t type and API are finally merged
> (see include/linux/refcount.h), the following
> patches convert various refcounters in the ipc susystem from atomic_t
> to refcount_t. By doing this we prevent intentional or accidental
> underflows or overflows that can led to use-after-free vulnerabilities.
> The below patches are fully independent and can be cherry-picked separately.
> Since we convert all kernel subsystems in the same fashion, resulting
> in about 300 patches, we have to group them for sending at least in some
> fashion to be manageable. Please excuse the long cc list.

Is that done using coccinelle?

Can I see the semantic patch (sorry if I missed it earlier)?

With Best Regards,
Andy Shevchenko

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