linux-kernel - Re: [PATCH v4 2/2] nvme: prevent admin controller from smart log fetch (LID 2)

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: <20250722063015.GC15013@lst.de>
Date: Tue, 22 Jul 2025 08:30:15 +0200
From: Christoph Hellwig <hch@....de>
To: Kamaljit Singh <kamaljit.singh1@....com>
Cc: kbusch@...nel.org, axboe@...nel.dk, hch@....de, sagi@...mberg.me,
	linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
	cassel@...nel.org, dlemoal@...nel.org
Subject: Re: [PATCH v4 2/2] nvme: prevent admin controller from smart log
 fetch (LID 2)

On Mon, Jul 21, 2025 at 10:37:00AM -0700, Kamaljit Singh wrote:
> Similar to a discovery ctrl, prevent an admin-ctrl from getting a smart
> log. LID 2 is optional for admin controllers to support.
> 
> In the future when support for the newly added LID=0 (supported log
> pages) is added, GLP accesses can be made smarter by basing such calls
> on response from LID=0 reads.

Umm, as pointed out last time, this log page is prohibited for discovery
controllers, but optional for admin controllers.  So I don't see why
we want or need to skip it here.