From: Jason Wang <jasowang@redhat.com>
To: mst@redhat.com, jasowang@redhat.com
Cc: virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, f.hetzelt@tu-berlin.de,
david.kaplan@amd.com, konrad.wilk@oracle.com
Subject: [PATCH V3 08/10] virtio-net: don't let virtio core to validate used length
Date: Tue, 19 Oct 2021 15:01:50 +0800 [thread overview]
Message-ID: <20211019070152.8236-9-jasowang@redhat.com> (raw)
In-Reply-To: <20211019070152.8236-1-jasowang@redhat.com>
For RX virtuqueue, the used length is validated in all the three paths
(big, small and mergeable). For control vq, we never tries to use used
length. So this patch forbids the core to validate the used length.
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/net/virtio_net.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 79bd2585ec6b..6a8b52aed05f 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -3384,6 +3384,7 @@ static struct virtio_driver virtio_net_driver = {
.feature_table_size = ARRAY_SIZE(features),
.feature_table_legacy = features_legacy,
.feature_table_size_legacy = ARRAY_SIZE(features_legacy),
+ .suppress_used_validation = true,
.driver.name = KBUILD_MODNAME,
.driver.owner = THIS_MODULE,
.id_table = id_table,
--
2.25.1
next prev parent reply other threads:[~2021-10-19 7:04 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-19 7:01 [PATCH V3 00/10] More virtio hardening Jason Wang
2021-10-19 7:01 ` [PATCH V3 01/10] virtio-blk: validate num_queues during probe Jason Wang
2021-10-20 7:18 ` Stefano Garzarella
2021-10-20 7:37 ` Michael S. Tsirkin
2021-10-20 8:44 ` Stefano Garzarella
2021-10-20 7:55 ` Stefan Hajnoczi
2021-10-19 7:01 ` [PATCH V3 02/10] virtio_console: validate max_nr_ports before trying to use it Jason Wang
2021-10-19 7:01 ` [PATCH V3 03/10] virtio_config: introduce a new .enable_cbs method Jason Wang
2021-10-19 7:01 ` [PATCH V3 04/10] virtio_pci: harden MSI-X interrupts Jason Wang
2022-03-08 15:19 ` Marc Zyngier
2022-03-08 16:35 ` Michael S. Tsirkin
[not found] ` <CACGkMEszR12BoEV=tds3u1DcC3VrChKuc9H3FzxAg1rH8im=_g@mail.gmail.com>
2022-03-09 7:04 ` Michael S. Tsirkin
2022-03-09 11:08 ` Marc Zyngier
2022-03-09 12:13 ` Michael S. Tsirkin
2021-10-19 7:01 ` [PATCH V3 05/10] virtio-pci: harden INTX interrupts Jason Wang
2022-03-09 10:45 ` Marc Zyngier
2022-03-09 11:27 ` Michael S. Tsirkin
2022-03-09 12:14 ` Marc Zyngier
2022-03-09 12:30 ` Michael S. Tsirkin
2021-10-19 7:01 ` [PATCH V3 06/10] virtio_ring: fix typos in vring_desc_extra Jason Wang
2021-10-19 7:01 ` [PATCH V3 07/10] virtio_ring: validate used buffer length Jason Wang
2021-10-19 7:01 ` Jason Wang [this message]
2021-10-19 7:01 ` [PATCH V3 09/10] virtio-blk: don't let virtio core to validate used length Jason Wang
2021-10-19 7:01 ` [PATCH V3 10/10] virtio-scsi: don't let virtio core to validate used buffer length Jason Wang
2021-10-23 21:31 ` [PATCH V3 00/10] More virtio hardening Michael S. Tsirkin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211019070152.8236-9-jasowang@redhat.com \
--to=jasowang@redhat.com \
--cc=david.kaplan@amd.com \
--cc=f.hetzelt@tu-berlin.de \
--cc=konrad.wilk@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox