linux-hardening - Re: [PATCH v5] bpf: Replace bpf_lpm_trie_key 0-length array with flexible array

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Date: Thu, 22 Feb 2024 07:52:54 -0800
From: Kees Cook <keescook@...omium.org>
To: Daniel Borkmann <daniel@...earbox.net>
Cc: Mark Rutland <mark.rutland@....com>,
	"Gustavo A . R . Silva" <gustavoars@...nel.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Andrii Nakryiko <andrii@...nel.org>,
	Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>,
	Yonghong Song <yhs@...com>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...gle.com>,
	Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
	Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>,
	Haowen Bai <baihaowen@...zu.com>, bpf@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	Yonghong Song <yonghong.song@...ux.dev>,
	Jonathan Corbet <corbet@....net>,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	Joanne Koong <joannelkoong@...il.com>,
	Yafang Shao <laoar.shao@...il.com>, Kui-Feng Lee <kuifeng@...a.com>,
	Anton Protopopov <aspsk@...valent.com>,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	netdev@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v5] bpf: Replace bpf_lpm_trie_key 0-length array with
 flexible array

On Wed, Feb 21, 2024 at 02:26:20PM -0800, Kees Cook wrote:
> Replace deprecated 0-length array in struct bpf_lpm_trie_key with
> flexible array. Found with GCC 13:

Nope, still breaking CI. I will respin again...
https://github.com/kernel-patches/bpf/actions/runs/7996482005/job/21839056683?pr=6451

-Kees

-- 
Kees Cook