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From: Florian Westphal <fw@strlen.de>
To: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>,
	Jozsef Kadlecsik <kadlec@netfilter.org>,
	Florian Westphal <fw@strlen.de>,
	netfilter-devel@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Netdev <netdev@vger.kernel.org>,
	coreteam@netfilter.org,
	clang-built-linux <clang-built-linux@googlegroups.com>
Subject: Re: Suspicious pattern for use of function xt_register_template()
Date: Mon, 23 Aug 2021 21:10:33 +0200	[thread overview]
Message-ID: <20210823191033.GA23869@breakpoint.cc> (raw)
In-Reply-To: <CAKXUXMzdGdyQg9CXJ2AZStrBk3J10r5r=gyiAuU4WimnoQNyvA@mail.gmail.com>

Lukas Bulwahn <lukas.bulwahn@gmail.com> wrote:
> Dear Florian, dear netfilter maintainers,
> 
> Commit fdacd57c79b ("netfilter: x_tables: never register tables by
> default") on linux-next
> introduces the function xt_register_template() and in all cases but
> one, the calls to that function are followed by:
> 
>     if (ret < 0)
>         return ret;
> 
> All these checks were also added with the commit above.
> 
> In the one case, for iptable_mangle_init() in
> ./net/ipv4/netfilter/iptable_mangle.c, this pattern was not followed.

Thats a bug, the error test is missing.

  reply	other threads:[~2021-08-23 19:10 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-23 17:01 Lukas Bulwahn
2021-08-23 19:10 ` Florian Westphal [this message]
2021-08-23 20:28   ` Lukas Bulwahn

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