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From: Jason Wang <jasowang@redhat.com>
To: mst@redhat.com, virtualization@lists.linux-foundation.org
Cc: f.hetzelt@tu-berlin.de, linux-kernel@vger.kernel.org,
	david.kaplan@amd.com, konrad.wilk@oracle.com
Subject: [PATCH V4 3/4] virtio-blk: don't let virtio core to validate used length
Date: Tue, 26 Oct 2021 15:19:59 +0800	[thread overview]
Message-ID: <20211026072000.8699-4-jasowang@redhat.com> (raw)
In-Reply-To: <20211026072000.8699-1-jasowang@redhat.com>

We never tries to use used length, so the patch prevents the virtio
core from validating used length.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 drivers/block/virtio_blk.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index c7d05ff24084..36d645ec5002 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -1041,6 +1041,7 @@ static struct virtio_driver virtio_blk = {
 	.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

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WARNING: multiple messages have this Message-ID (diff)
From: Jason Wang <jasowang@redhat.com>
To: mst@redhat.com, virtualization@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org, f.hetzelt@tu-berlin.de,
	david.kaplan@amd.com, konrad.wilk@oracle.com,
	Jason Wang <jasowang@redhat.com>
Subject: [PATCH V4 3/4] virtio-blk: don't let virtio core to validate used length
Date: Tue, 26 Oct 2021 15:19:59 +0800	[thread overview]
Message-ID: <20211026072000.8699-4-jasowang@redhat.com> (raw)
In-Reply-To: <20211026072000.8699-1-jasowang@redhat.com>

We never tries to use used length, so the patch prevents the virtio
core from validating used length.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 drivers/block/virtio_blk.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index c7d05ff24084..36d645ec5002 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -1041,6 +1041,7 @@ static struct virtio_driver virtio_blk = {
 	.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


  parent reply	other threads:[~2021-10-26  7:20 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-26  7:19 [PATCH V4 0/4] Validate used buffer length Jason Wang
2021-10-26  7:19 ` Jason Wang
2021-10-26  7:19 ` [PATCH V4 1/4] virtio_ring: validate " Jason Wang
2021-10-26  7:19   ` Jason Wang
2021-10-26  9:43   ` Michael S. Tsirkin
2021-10-26  9:43     ` Michael S. Tsirkin
2021-10-26 10:21     ` Jason Wang
2021-10-26 10:21       ` Jason Wang
2021-10-26 10:32       ` Michael S. Tsirkin
2021-10-26 10:32         ` Michael S. Tsirkin
2021-10-26  7:19 ` [PATCH V4 2/4] virtio-net: don't let virtio core to validate used length Jason Wang
2021-10-26  7:19   ` Jason Wang
2021-10-26  7:19 ` Jason Wang [this message]
2021-10-26  7:19   ` [PATCH V4 3/4] virtio-blk: " Jason Wang
2021-10-26  7:20 ` [PATCH V4 4/4] virtio-scsi: don't let virtio core to validate used buffer length Jason Wang
2021-10-26  7:20   ` Jason Wang

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