linux-kernel - Re: [PATCH net] cls_matchall: avoid panic when receiving a packet before filter set

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Message-ID: <CAGnkfhwWnST_uMOOpBtz4scN50T_9X+bJnVYaHeFvLzPHgRGtA@mail.gmail.com>
Date:   Thu, 2 May 2019 10:54:34 +0200
From:   Matteo Croce <mcroce@...hat.com>
To:     netdev <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     Cong Wang <xiyou.wangcong@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH net] cls_matchall: avoid panic when receiving a packet
 before filter set

On Thu, May 2, 2019 at 10:51 AM Matteo Croce <mcroce@...hat.com> wrote:
>
> When a matchall classifier is added, there is a small time interval in
> which tp->root is NULL. If we receive a packet in this small time slice
> a NULL pointer dereference will happen, leading to a kernel panic:
>

Hi,

I forgot to mark it as v2. Will someone handle it, or I have to
resubmit a v2 or v3?

Regards,
-- 
Matteo Croce
per aspera ad upstream