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: <Y/XTT59OrLw2as4R@zn.tnic>
Date:   Wed, 22 Feb 2023 09:33:19 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Tavis Ormandy <taviso@...il.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: x86: AMD Zen2 ymm registers rolling back

On Tue, Feb 21, 2023 at 10:40:07PM -0800, Tavis Ormandy wrote:
> Hello, I'm experiencing a serious bug on AMD Zen2 that is causing
> registers to "roll back" to previous values after a context switch.

It probably doesn't matter all too much but which kernel are you running
this on?

Latest and greatest I hope...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette