linux-hardening - Re: [PATCH v2][next] Bluetooth: L2CAP: Avoid -Wflex-array-member-not-at-end warnings

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Date: Wed, 27 Mar 2024 23:28:43 -0600
From: Kees Cook <kees@...nel.org>
To: "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
 Luiz Augusto von Dentz <luiz.dentz@...il.com>,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>
CC: Marcel Holtmann <marcel@...tmann.org>,
 Johan Hedberg <johan.hedberg@...il.com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2][next] Bluetooth: L2CAP: Avoid -Wflex-array-member-not-at-end warnings

On March 27, 2024 11:08:33 AM MDT, "Gustavo A. R. Silva" <gustavo@...eddedor.com> wrote:
>Hi!
>
>On 3/27/24 10:55, Luiz Augusto von Dentz wrote:
>> Hi Gustavo,
>> 
>> On Wed, Mar 27, 2024 at 12:23 PM Gustavo A. R. Silva
>> <gustavoars@...nel.org> wrote:
>>> 
>>> -Wflex-array-member-not-at-end is coming in GCC-14, and we are getting
>>> ready to enable it globally.
>> 
>> Which tree is this base on, I just rebased bluetooth-next on top of
>> net-next but it looks like CI is still failing to build it, so either
>> we don't have all the dependencies already in net-next or perhaps you
>> had it submit while the tree had not been updated.
>
>This is based off of linux-next.
>
>I think net-next is missing this commit in v6.9-rc1:
>
>d8e45f2929b9 "overflow: Change DEFINE_FLEX to take __counted_by member")
>
>https://git.kernel.org/linus/d8e45f2929b9

Just FYI, that is in rc1. (I sent it late to avoid a netdev collision.)

-- 
Kees Cook