Date: Wed, 21 Nov 2012 09:58:56 +0000 (GMT)
From: MyungJoo Ham <myungjoo.ham@samsung.com>
Subject: Re: opp_get_notifier() needs to be under rcu_lock?
To: Kees Cook <keescook@chromium.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Serge Hallyn <serge.hallyn@canonical.com>
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> Hi,
> 
> It looks like find_device_opp() (called from opp_get_notifier()) needs
> to be under RCU read lock, but this doesn't seem to be happening in
> drivers/devfreq/devfreq.c. Doesn't this run the risk of referencing a
> freed variable?
> 
> Thanks,
> 
> -Kees

Yes, that's an issue requiring updates.

Thank you for pointing out.


Cheers,
MyungJoo

> 
> -- 
> Kees Cook
> Chrome OS Security
> 


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