linux-kernel - Re: [PATCH v4] PCI/sysfs: Change read permissions for VPD attributes

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: <7ff54e42-a76c-42b1-b95c-1dd2ee47fe93@lunn.ch>
Date: Tue, 25 Feb 2025 18:30:25 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Leon Romanovsky <leon@...nel.org>
Cc: Bjorn Helgaas <helgaas@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	linux-pci@...r.kernel.org, Ariel Almog <ariela@...dia.com>,
	Aditya Prabhune <aprabhune@...dia.com>,
	Hannes Reinecke <hare@...e.de>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Arun Easi <aeasi@...vell.com>, Jonathan Chocron <jonnyc@...zon.com>,
	Bert Kenward <bkenward@...arflare.com>,
	Matt Carlson <mcarlson@...adcom.com>,
	Kai-Heng Feng <kai.heng.feng@...onical.com>,
	Jean Delvare <jdelvare@...e.de>,
	Alex Williamson <alex.williamson@...hat.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Jakub Kicinski <kuba@...nel.org>,
	Thomas Weißschuh <linux@...ssschuh.net>,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: [PATCH v4] PCI/sysfs: Change read permissions for VPD attributes

> We always read VPD by using "sudo ..." command, until one of our customers
> requested to provide a way to run monitoring library without any root access.
> It runs on hypervisor and being non-root there is super important for them.

You can chmod files in sys. So the administrator can change the
permissions, and then non-root users can access it.

This seems a more scalable solution that adding a special case in the
kernel.

	Andrew