linux-hardening - Re: [PATCH] ethtool: Replace 0-length array with flexible array

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Message-ID: <202301051534.D850BE8734@keescook>
Date:   Thu, 5 Jan 2023 15:34:42 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>,
        kernel test robot <lkp@...el.com>,
        Oleksij Rempel <linux@...pel-privat.de>,
        Sean Anderson <sean.anderson@...o.com>,
        Alexandru Tachici <alexandru.tachici@...log.com>,
        Amit Cohen <amcohen@...dia.com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Vincent Mailhol <mailhol.vincent@...adoo.fr>,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] ethtool: Replace 0-length array with flexible array

On Thu, Jan 05, 2023 at 03:27:31PM -0800, Jakub Kicinski wrote:
> On Thu,  5 Jan 2023 13:41:34 -0800 Kees Cook wrote:
> > Zero-length arrays are deprecated[1]. Replace struct ethtool_rxnfc's
> > "rule_locs" 0-length array with a flexible array. Detected with GCC 13,
> > using -fstrict-flex-arrays=3:
> 
> You gotta CC netdev to get it into patchwork etc.

Oops, thanks. I'm not sure how that went missing. v2 sent.

-- 
Kees Cook