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Message-ID: <e260c2c5-26b6-6ef4-563e-b601adc664f9@cumulusnetworks.com>
Date:   Mon, 27 Feb 2017 11:59:33 -0800
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Cong Wang <xiyou.wangcong@...il.com>,
        Andrey Konovalov <andreyknvl@...gle.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        James Morris <jmorris@...ei.org>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Patrick McHardy <kaber@...sh.net>,
        netdev <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Kostya Serebryany <kcc@...gle.com>,
        syzkaller <syzkaller@...glegroups.com>,
        Eric Dumazet <edumazet@...gle.com>
Subject: Re: net/ipv6: null-ptr-deref in ip6_route_del/lock_acquire

On 2/27/17 10:11 AM, Cong Wang wrote:
> The attached patch fixes this crash, but I am not sure if it is the
> best way to fix this bug yet...

I'll take a look. I can not reproduce this using route or ip, so the
fuzzer is doing something interesting.

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