linux-hardening - Re: [PATCH] wifi: mwifiex: Replace strlcpy with strscpy

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Date:   Thu, 27 Jul 2023 19:02:31 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Amitkumar Karwar <amitkarwar@...il.com>,
        Ganapathi Bhat <ganapathi017@...il.com>,
        Sharvari Harisangam <sharvari.harisangam@....com>,
        Xinming Hu <huxinming820@...il.com>,
        Azeem Shaikh <azeemshaikh38@...il.com>,
        linux-hardening@...r.kernel.org, linux-wireless@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] wifi: mwifiex: Replace strlcpy with strscpy

Kees Cook <keescook@...omium.org> writes:

> On Mon, 10 Jul 2023 03:06:25 +0000, Azeem Shaikh wrote:
>> strlcpy() reads the entire source buffer first.
>> This read may exceed the destination size limit.
>> This is both inefficient and can lead to linear read
>> overflows if a source string is not NUL-terminated [1].
>> In an effort to remove strlcpy() completely [2], replace
>> strlcpy() here with strscpy().
>> 
>> [...]
>
> Applied, thanks!
>
> [1/1] wifi: mwifiex: Replace strlcpy with strscpy
>       https://git.kernel.org/kees/c/5469fb73e96d

And the same question here, why are you taking wifi patches without
acks? And this already fixed differently in wireless-next so our trees
conflict now:

https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/commit/?id=caf9ead2c7d06fd7aa4cb48bd569ad61db9a0b4a

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches