linux-kernel - Re: [PATCH] hardening: Enable KFENCE in the hardening config

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: <0ffbfd54-57d2-474e-8dad-7f1469f4da21@kernel.org>
Date: Mon, 12 Feb 2024 15:07:24 +0100
From: Matthieu Baerts <matttbe@...nel.org>
To: Marco Elver <elver@...gle.com>, Kees Cook <keescook@...omium.org>
Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org>,
 linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
 Dmitry Vyukov <dvyukov@...gle.com>, Alexander Potapenko <glider@...gle.com>,
 kasan-dev@...glegroups.com, Jakub Kicinski <kuba@...nel.org>
Subject: Re: [PATCH] hardening: Enable KFENCE in the hardening config

Hi Marco,

On 12/02/2024 14:01, Marco Elver wrote:
> KFENCE is not a security mitigation mechanism (due to sampling), but has
> the performance characteristics of unintrusive hardening techniques.
> When used at scale, however, it improves overall security by allowing
> kernel developers to detect heap memory-safety bugs cheaply.

Thank you for having sent this patch!

Cheers,
Matt
-- 
Sponsored by the NGI0 Core fund.