netdev - Re: [Patch net 00/16] net_sched: fix races with RCU callbacks

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Message-ID: <CAM_iQpV+4_ae++398_Jrr4W=u_Ep=g9SXfGs5O-=_2ZkyosYgQ@mail.gmail.com>
Date:   Tue, 31 Oct 2017 16:02:17 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Lucas Bates <lucasb@...atatu.com>
Cc:     Jamal Hadi Salim <jhs@...atatu.com>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Chris Mi <chrism@...lanox.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jiri Pirko <jiri@...nulli.us>,
        John Fastabend <john.fastabend@...il.com>,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: [Patch net 00/16] net_sched: fix races with RCU callbacks

On Tue, Oct 31, 2017 at 3:09 PM, Cong Wang <xiyou.wangcong@...il.com> wrote:
>
> This almost rules out the guilty of this patchset.
>
> I will provide a patch for you to test, since I can't reproduce it here.
>

Lucas, please test the attached patch, it applies to latest -net.

Note, it is a combination of 3 patches which together close the
use-after-free you reported here, I hope.

Please let me know if this works. My basic tests run well without
any stack traces or memory leaks.

Thanks!

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