linux-kernel - Re: [PATCH 4.14] netfilter: nf

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Date:   Tue, 23 May 2023 10:45:26 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Andrew Paniakin <apanyaki@...zon.com>
Cc:     stable@...r.kernel.org, luizcap@...zon.com, benh@...zon.com,
        Florian Westphal <fw@...len.de>,
        Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        "David S. Miller" <davem@...emloft.net>,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4.14] netfilter: nf_tables: fix register ordering

On Mon, May 22, 2023 at 07:59:41PM -0700, Andrew Paniakin wrote:
> From: Florian Westphal <fw@...len.de>
> 
> commit d209df3e7f7002d9099fdb0f6df0f972b4386a63 upstream
> 
> [ We hit the trace described in commit message with the
> kselftest/nft_trans_stress.sh. This patch diverges from the upstream one
> since kernel 4.14 does not have following symbols:
> nft_chain_filter_init, nf_tables_flowtable_notifier ]
> 
> We must register nfnetlink ops last, as that exposes nf_tables to
> userspace.  Without this, we could theoretically get nfnetlink request
> before net->nft state has been initialized.

I have to send pending batch of updates for -stable 4.14.

I take this patch and I will pass it on -stable maintainers.

Thanks.