netdev - Re: [PATCH 3/7] netfilter: nf_tables: refactor deprecated strncpy

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Message-ID: <20230808231333.GH9741@breakpoint.cc>
Date: Wed, 9 Aug 2023 01:13:33 +0200
From: Florian Westphal <fw@...len.de>
To: Justin Stitt <justinstitt@...gle.com>
Cc: Pablo Neira Ayuso <pablo@...filter.org>,
	Jozsef Kadlecsik <kadlec@...filter.org>,
	Florian Westphal <fw@...len.de>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	linux-hardening@...r.kernel.org, Kees Cook <keescook@...omium.org>,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/7] netfilter: nf_tables: refactor deprecated strncpy

Justin Stitt <justinstitt@...gle.com> wrote:
> Prefer `strscpy` over `strncpy`.

No, this relies on zeroing out the entire register.

If you absolutely have to do this, use _pad version.