linux-kernel - Re: [PATCH v2 1/2] virtio: silence KCSAN warning in virtqueue_get_buf_ctx

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: <42d57017-88b6-4ab6-8fa9-10658d268fb6@wdc.com>
Date: Wed, 28 Jan 2026 08:47:34 +0000
From: Johannes Thumshirn <Johannes.Thumshirn@....com>
To: Alexander Graf <graf@...zon.com>, "virtualization@...ts.linux.dev"
	<virtualization@...ts.linux.dev>
CC: "Michael S . Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, Eugenio Pérez
	<eperezma@...hat.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] virtio: silence KCSAN warning in
 virtqueue_get_buf_ctx_split

On 1/27/26 5:30 PM, Alexander Graf wrote:
> This patches the split vring format, but does not touch the packed one.
> What happens if you run the same test with the packed format? You can do
> so by passing "packed=on" as argument to your -device parameter.

This opened up a whole new can of worms... :(