From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Florian Westphal <fw@strlen.de>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [PATCH nf] netfilter: x_tables: suppress kmemcheck warning
Date: Wed, 19 Oct 2016 18:33:32 +0200 [thread overview]
Message-ID: <20161019163332.GA7994@salvia> (raw)
In-Reply-To: <1476733823-10714-1-git-send-email-fw@strlen.de>
On Mon, Oct 17, 2016 at 09:50:23PM +0200, Florian Westphal wrote:
> Markus Trippelsdorf reports:
>
> WARNING: kmemcheck: Caught 64-bit read from uninitialized memory (ffff88001e605480)
> 4055601e0088ffff000000000000000090686d81ffffffff0000000000000000
> u u u u u u u u u u u u u u u u i i i i i i i i u u u u u u u u
> ^
> |RIP: 0010:[<ffffffff8166e561>] [<ffffffff8166e561>] nf_register_net_hook+0x51/0x160
> [..]
> [<ffffffff8166e561>] nf_register_net_hook+0x51/0x160
> [<ffffffff8166eaaf>] nf_register_net_hooks+0x3f/0xa0
> [<ffffffff816d6715>] ipt_register_table+0xe5/0x110
> [..]
>
> This warning is harmless; we copy 'uninitialized' data from the hook ops
> but it will not be used.
> Long term the structures keeping run-time data should be disentangled
> from those only containing config-time data (such as where in the list
> to insert a hook), but thats -next material.
Applied, thanks.
prev parent reply other threads:[~2016-10-19 16:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-17 19:50 [PATCH nf] netfilter: x_tables: suppress kmemcheck warning Florian Westphal
2016-10-17 20:16 ` Aaron Conole
2016-10-19 16:33 ` Pablo Neira Ayuso [this message]
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