linux-kernel - Re: [PATCH v2] netfilter: nfnetlink: Remove VLA usage

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Message-ID: <20180601074804.44l66hj7lcwhpdmv@salvia>
Date:   Fri, 1 Jun 2018 09:48:04 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        Florian Westphal <fw@...len.de>,
        "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 v2] netfilter: nfnetlink: Remove VLA usage

On Wed, May 30, 2018 at 12:17:56PM -0700, Kees Cook wrote:
> In the quest to remove all stack VLA usage from the kernel[1], this
> allocates the maximum size expected for all possible attrs and adds
> sanity-checks at both registration and usage to make sure nothing
> gets out of sync.
> 
> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

Applied, thanks Kees.