netdev - Re: [PATCH v2][next] virtio_net: Fix misalignment bug in struct virtnet

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-Id: 
 <176846880805.3904091.8567285524155232438.git-patchwork-notify@kernel.org>
Date: Thu, 15 Jan 2026 09:20:08 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Gustavo A. R. Silva <gustavoars@...nel.org>
Cc: mst@...hat.com, jasowang@...hat.com, xuanzhuo@...ux.alibaba.com,
 eperezma@...hat.com, andrew+netdev@...n.ch, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 akihiko.odaki@...nix.com, horms@...nel.org, netdev@...r.kernel.org,
 virtualization@...ts.linux.dev, linux-kernel@...r.kernel.org,
 linux-hardening@...r.kernel.org, kees@...nel.org
Subject: Re: [PATCH v2][next] virtio_net: Fix misalignment bug in struct
 virtnet_info

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Sat, 10 Jan 2026 17:07:17 +0900 you wrote:
> Use the new TRAILING_OVERLAP() helper to fix a misalignment bug
> along with the following warning:
> 
> drivers/net/virtio_net.c:429:46: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
> 
> This helper creates a union between a flexible-array member (FAM)
> and a set of members that would otherwise follow it (in this case
> `u8 rss_hash_key_data[VIRTIO_NET_RSS_MAX_KEY_SIZE];`). This
> overlays the trailing members (rss_hash_key_data) onto the FAM
> (hash_key_data) while keeping the FAM and the start of MEMBERS aligned.
> The static_assert() ensures this alignment remains.
> 
> [...]

Here is the summary with links:
  - [v2,next] virtio_net: Fix misalignment bug in struct virtnet_info
    https://git.kernel.org/netdev/net/c/4156c3745f06

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html