* [PATCH] vhost/scsi: fix up req type endian-ness
@ 2020-07-10 10:48 Michael S. Tsirkin
2020-07-13 3:31 ` Jason Wang
2020-07-13 9:29 ` Stefan Hajnoczi
0 siblings, 2 replies; 3+ messages in thread
From: Michael S. Tsirkin @ 2020-07-10 10:48 UTC (permalink / raw)
To: linux-kernel
Cc: stable, Jason Wang, Paolo Bonzini, Stefan Hajnoczi,
virtualization, kvm, netdev
vhost/scsi doesn't handle type conversion correctly
for request type when using virtio 1.0 and up for BE,
or cross-endian platforms.
Fix it up using vhost_32_to_cpu.
Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
drivers/vhost/scsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 6fb4d7ecfa19..b22adf03f584 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1215,7 +1215,7 @@ vhost_scsi_ctl_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
continue;
}
- switch (v_req.type) {
+ switch (vhost32_to_cpu(vq, v_req.type)) {
case VIRTIO_SCSI_T_TMF:
vc.req = &v_req.tmf;
vc.req_size = sizeof(struct virtio_scsi_ctrl_tmf_req);
--
MST
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] vhost/scsi: fix up req type endian-ness
2020-07-10 10:48 [PATCH] vhost/scsi: fix up req type endian-ness Michael S. Tsirkin
@ 2020-07-13 3:31 ` Jason Wang
2020-07-13 9:29 ` Stefan Hajnoczi
1 sibling, 0 replies; 3+ messages in thread
From: Jason Wang @ 2020-07-13 3:31 UTC (permalink / raw)
To: Michael S. Tsirkin, linux-kernel
Cc: stable, Paolo Bonzini, Stefan Hajnoczi, virtualization, kvm, netdev
On 2020/7/10 下午6:48, Michael S. Tsirkin wrote:
> vhost/scsi doesn't handle type conversion correctly
> for request type when using virtio 1.0 and up for BE,
> or cross-endian platforms.
>
> Fix it up using vhost_32_to_cpu.
>
> Cc: stable@vger.kernel.org
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
> drivers/vhost/scsi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
> index 6fb4d7ecfa19..b22adf03f584 100644
> --- a/drivers/vhost/scsi.c
> +++ b/drivers/vhost/scsi.c
> @@ -1215,7 +1215,7 @@ vhost_scsi_ctl_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
> continue;
> }
>
> - switch (v_req.type) {
> + switch (vhost32_to_cpu(vq, v_req.type)) {
> case VIRTIO_SCSI_T_TMF:
> vc.req = &v_req.tmf;
> vc.req_size = sizeof(struct virtio_scsi_ctrl_tmf_req);
Acked-by: Jason Wang <jasowang@redhat.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] vhost/scsi: fix up req type endian-ness
2020-07-10 10:48 [PATCH] vhost/scsi: fix up req type endian-ness Michael S. Tsirkin
2020-07-13 3:31 ` Jason Wang
@ 2020-07-13 9:29 ` Stefan Hajnoczi
1 sibling, 0 replies; 3+ messages in thread
From: Stefan Hajnoczi @ 2020-07-13 9:29 UTC (permalink / raw)
To: Michael S. Tsirkin
Cc: linux-kernel, stable, Jason Wang, Paolo Bonzini, virtualization,
kvm, netdev
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On Fri, Jul 10, 2020 at 06:48:51AM -0400, Michael S. Tsirkin wrote:
> vhost/scsi doesn't handle type conversion correctly
> for request type when using virtio 1.0 and up for BE,
> or cross-endian platforms.
>
> Fix it up using vhost_32_to_cpu.
>
> Cc: stable@vger.kernel.org
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
> drivers/vhost/scsi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-07-10 10:48 [PATCH] vhost/scsi: fix up req type endian-ness Michael S. Tsirkin
2020-07-13 3:31 ` Jason Wang
2020-07-13 9:29 ` Stefan Hajnoczi
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