linux-hardening - Re: [PATCH v3] netlink: Return unsigned value for nla

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

Message-Id: 
 <170206442406.2842.16381176213819730158.git-patchwork-notify@kernel.org>
Date: Fri, 08 Dec 2023 19:40:24 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Kees Cook <keescook@...omium.org>
Cc: kuba@...nel.org, lkp@...el.com, davem@...emloft.net, edumazet@...gle.com,
 pabeni@...hat.com, johannes@...solutions.net, quic_jjohnson@...cinc.com,
 mwalle@...nel.org, max.schulze@...ine.de, netdev@...r.kernel.org,
 linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-hardening@...r.kernel.org
Subject: Re: [PATCH v3] netlink: Return unsigned value for nla_len()

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Wed,  6 Dec 2023 12:59:07 -0800 you wrote:
> The return value from nla_len() is never expected to be negative, and can
> never be more than struct nlattr::nla_len (a u16). Adjust the prototype
> on the function. This will let GCC's value range optimization passes
> know that the return can never be negative, and can never be larger than
> u16. As recently discussed[1], this silences the following warning in
> GCC 12+:
> 
> [...]

Here is the summary with links:
  - [v3] netlink: Return unsigned value for nla_len()
    https://git.kernel.org/netdev/net-next/c/172db56d90d2

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