linux-kernel - Re: [RFC 00/12] module: avoid userspace pressure on unwanted allocations

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: <CAHk-=wjsBkyD+y_zfif1MXWYEkvPt+TPLdVjP41573oKEOu4qA@mail.gmail.com>
Date:   Fri, 24 Mar 2023 16:41:03 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     David Hildenbrand <david@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        linux-modules@...r.kernel.org, linux-kernel@...r.kernel.org,
        pmladek@...e.com, petr.pavlu@...e.com, prarit@...hat.com,
        christophe.leroy@...roup.eu, song@...nel.org, dave@...olabs.net,
        fan.ni@...sung.com, vincent.fu@...sung.com,
        a.manzanares@...sung.com, colin.i.king@...il.com
Subject: Re: [RFC 00/12] module: avoid userspace pressure on unwanted allocations

On Fri, Mar 24, 2023 at 4:27 PM Luis Chamberlain <mcgrof@...nel.org> wrote:
>
> A magic values of 20 is completely empirical.

I suspect a magic value is fine in this context. I do not believe that
"hundreds of concurrent module loads" is a valid real-life load. It
sounds more like a "systemd does horrible things at startup".

20 sounds plenty big enough to me.

But I guess this is one of those "only real life will tell".

              Linus