linux-hardening - Re: [PATCH][next] iwlwifi: fw: Replace zero-length arrays with flexible-array members

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4c520e2e-d1a5-6d2b-3ef1-b891d7946c01@embeddedor.com>
Date:   Mon, 28 Mar 2022 01:23:59 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Kalle Valo <kvalo@...nel.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>,
        Luca Coelho <luciano.coelho@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] iwlwifi: fw: Replace zero-length arrays with
 flexible-array members



On 3/28/22 00:47, Kalle Valo wrote:
> "Gustavo A. R. Silva" <gustavoars@...nel.org> writes:
> 
>> On Wed, Feb 16, 2022 at 12:35:14PM -0800, Kees Cook wrote:
>>> On Wed, Feb 16, 2022 at 01:50:15PM -0600, Gustavo A. R. Silva wrote:
>>>> There is a regular need in the kernel to provide a way to declare
>>>> having a dynamically sized set of trailing elements in a structure.
>>>> Kernel code should always use “flexible array members”[1] for these
>>>> cases. The older style of one-element or zero-length arrays should
>>>> no longer be used[2].
>>>>
>>>> [1] https://en.wikipedia.org/wiki/Flexible_array_member
>>>> [2]
>>>> https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
>>>>
>>>> Link: https://github.com/KSPP/linux/issues/78
>>>> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
>>>
>>> Reviewed-by: Kees Cook <keescook@...omium.org>
>>
>> Hi all,
>>
>> Friendly ping: can someone take this, please?
>>
>> ...I can take this in my -next tree in the meantime.
> 
> Like we have discussed before, please don't take any wireless patches to
> your tree. The conflicts just cause more work of us.

Sure thing. I just removed it from my tree.

I didn't get any reply from wireless people in more than a month, and
that's why I temporarily took it in my tree so it doesn't get lost. :)

> I assigned this patch to me on patchwork and I'm planning to take it to
> wireless-next once it opens. Luca, ack?

Awesome.

Thanks
--
Gustavo