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Subject: Re: Double free of struct sk_buff reported by SLAB_CONSISTENCY_CHECKS
 with init_on_free
To:     Thibaut Sautereau <thibaut.sautereau@clip-os.org>,
        netdev@vger.kernel.org, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Cc:     "David S. Miller" <davem@davemloft.net>,
        Laura Abbott <labbott@redhat.com>,
        Kees Cook <keescook@chromium.org>,
        Alexander Potapenko <glider@google.com>,
        Andrew Morton <akpm@linux-foundation.org>, clipos@ssi.gouv.fr
References: <20191104170303.GA50361@gandi.net>
From:   Eric Dumazet <eric.dumazet@gmail.com>
Message-ID: <719eebd3-259d-8beb-025a-f2d17c632711@gmail.com>
Date:   Mon, 4 Nov 2019 09:33:18 -0800
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On 11/4/19 9:03 AM, Thibaut Sautereau wrote:
> 
> We first encountered this issue under huge network traffic (system image
> download), and I was able to reproduce by simply sending a big packet
> with `ping -s 65507 <ip>`, which crashes the kernel every single time.
> 

Since you have a repro, could you start a bisection ?

Thanks !