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Subject: Re: [PATCH bpf] bpf: don't accept cgroup local storage with zero
 value size
To:     Roman Gushchin <guro@fb.com>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Kernel Team <Kernel-team@fb.com>,
        Alexei Starovoitov <ast@kernel.org>
References: <20181002024003.25635-1-guro@fb.com>
From:   Daniel Borkmann <daniel@iogearbox.net>
Message-ID: <8e6010ef-4e72-d167-8016-dda3fbbf8e5e@iogearbox.net>
Date:   Tue, 2 Oct 2018 14:43:52 +0200
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On 10/02/2018 04:41 AM, Roman Gushchin wrote:
> Explicitly forbid creating cgroup local storage maps with zero value
> size, as it makes no sense and might even cause a panic.
> 
> Reported-by: syzbot+18628320d3b14a5c459c@syzkaller.appspotmail.com
> Signed-off-by: Roman Gushchin <guro@fb.com>
> Cc: Alexei Starovoitov <ast@kernel.org>
> Cc: Daniel Borkmann <daniel@iogearbox.net>

Applied to bpf, thanks Roman!