linux-kernel - Re: CVE-2025-21991: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes

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: <064d66133dc11a95f7c5aa647784cf9bb3ede1df.camel@oracle.com>
Date: Wed, 4 Jun 2025 09:54:55 +0000
From: Siddh Raman Pant <siddh.raman.pant@...cle.com>
To: "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: CVE-2025-21991: x86/microcode/AMD: Fix out-of-bounds on systems
 with CPU-less NUMA nodes

On Wed, Jun 04 2025 at 14:58:03 +0530, gregkh@...uxfoundation.org
wrote:
> Doesn't "causing corrupted memory when flashing a microcode update" fit
> the cve.org definition of a "vulnerabilty"?

This only happens on CPU bring-up so I don't see it getting triggered
without already being exploited.

Thanks,
Siddh

Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)