netdev - Re: [Patch net] act_ife: fix a potential use-after-free

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Date:   Tue, 04 Sep 2018 12:19:06 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     xiyou.wangcong@...il.com
Cc:     netdev@...r.kernel.org, jhs@...atatu.com
Subject: Re: [Patch net] act_ife: fix a potential use-after-free

From: Cong Wang <xiyou.wangcong@...il.com>
Date: Mon,  3 Sep 2018 11:08:15 -0700

> Immediately after module_put(), user could delete this
> module, so e->ops could be already freed before we call
> e->ops->release().
> 
> Fix this by moving module_put() after ops->release().
> 
> Fixes: ef6980b6becb ("introduce IFE action")
> Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>

Applied and queued up for -stable, thanks Cong.