linux-kernel - Re: x86: AMD Zen2 ymm registers rolling back

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: <3d007f98-a42a-3c0e-8d6a-c86c5d0e25be@ispras.ru>
Date:   Tue, 28 Feb 2023 22:24:40 +0300 (MSK)
From:   Alexander Monakov <amonakov@...ras.ru>
To:     Borislav Petkov <bp@...en8.de>
cc:     Andrew Cooper <andrew.cooper3@...rix.com>,
        Tavis Ormandy <taviso@...il.com>, linux-kernel@...r.kernel.org,
        x86@...nel.org
Subject: Re: x86: AMD Zen2 ymm registers rolling back


On Tue, 28 Feb 2023, Borislav Petkov wrote:

> On Tue, Feb 28, 2023 at 09:47:22PM +0300, Alexander Monakov wrote:
> > I've seen microcode version increase after a BIOS update,
> 
> Are you saying there's no BIOS update for your board?

No, on the contrary, if there were no updates I would not be able to
see microcode version increase after updating.

> Are you running the latest BIOS?

Yes.

Alexander