linux-kernel - Re: [PATCH v3 2/5] x86/entry: Rename ignore

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: <87sfaoqyt1.ffs@tglx>
Date:   Sun, 18 Jun 2023 22:51:22 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Nikolay Borisov <nik.borisov@...e.com>, x86@...nel.org
Cc:     linux-kernel@...r.kernel.org, mhocko@...e.com, jslaby@...e.cz,
        Nikolay Borisov <nik.borisov@...e.com>
Subject: Re: [PATCH v3 2/5] x86/entry: Rename ignore_sysret

On Fri, Jun 16 2023 at 15:57, Nikolay Borisov wrote:

> Give ignore_sysret() a more descriptive name as it's actually used to make
> 32bit syscalls return ENOSYS, rather than doing anything specific with

That's not really correct. This is not about 32bit syscalls in general.

It's specifically about the SYSCALL entry point on 32bit, right?

The reason why this is required is because 32bit SYSCALL cannot be
disabled in hardware.

Thanks,

        tglx