linux-hardening - Re: [PATCH][next] net/ipv4: Replace one-element array with flexible-array member

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Message-ID: <6d3c2ba1-ea01-dbc1-1e18-1ba9c7a15181@embeddedor.com>
Date:   Mon, 2 Aug 2021 13:46:08 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     patchwork-bot+netdevbpf@...nel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     davem@...emloft.net, kuba@...nel.org, yoshfuji@...ux-ipv6.org,
        dsahern@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] net/ipv4: Replace one-element array with
 flexible-array member



On 8/2/21 09:20, patchwork-bot+netdevbpf@...nel.org wrote:
> Hello:
> 
> This patch was applied to netdev/net-next.git (refs/heads/master):
> 
> On Sat, 31 Jul 2021 12:08:30 -0500 you 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].
>>
>> Use an anonymous union with a couple of anonymous structs in order to
>> keep userspace unchanged:
>>
>> [...]
> 
> Here is the summary with links:
>   - [next] net/ipv4: Replace one-element array with flexible-array member
>     https://git.kernel.org/netdev/net-next/c/2d3e5caf96b9

arghh... this has a bug. Sorry, Dave. I will send a fix for this, shortly.

--
Gustavo