linux-hardening - Re: [PATCH] mwl8k: Use struct

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Message-ID: <147e31ef85dbbdf87d6785b6a28229de81f8af6c.camel@sipsolutions.net>
Date:   Thu, 18 Nov 2021 20:45:22 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     Kees Cook <keescook@...omium.org>,
        Lennert Buytenhek <buytenh@...tstofly.org>
Cc:     Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        wengjianfeng <wengjianfeng@...ong.com>,
        Lv Yunlong <lyl2019@...l.ustc.edu.cn>,
        Arnd Bergmann <arnd@...db.de>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Allen Pais <allen.lkml@...il.com>,
        Zheyu Ma <zheyuma97@...il.com>, linux-kernel@...r.kernel.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH] mwl8k: Use struct_group() for memcpy() region

On Thu, 2021-11-18 at 10:37 -0800, Kees Cook wrote:
> 
> -	__u8 key_material[MAX_ENCR_KEY_LENGTH];
> -	__u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
> -	__u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
> +	struct {
> +			__u8 key_material[MAX_ENCR_KEY_LENGTH];
> 

That got one tab too many?

johannes