Stefano Garzarella 4fd0ad08ee vhost/vsock: fix incorrect used length reported to the guest ... commit 49d8c5ffad07ca014cfae72a1b9b8c52b6ad9cb8 upstream. The "used length" reported by calling vhost_add_used() must be the number of bytes written by the device (using "in" buffers). In vhost_vsock_handle_tx_kick() the device only reads the guest buffers (they are all "out" buffers), without writing anything, so we must pass 0 as "used length" to comply virtio spec. Fixes: 433fc58e6b ("VSOCK: Introduce vhost_vsock.ko") Cc: stable@vger.kernel.org Reported-by: Halil Pasic <pasic@linux.ibm.com> Suggested-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20211122163525.294024-2-sgarzare@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-12-01 09:19:09 +01:00
..
iotlb.c	vhost: Fix documentation	2020-09-24 05:54:36 -04:00
Kconfig	vhost_vdpa: implement IRQ offloading in vhost_vdpa	2020-08-05 11:08:42 -04:00
Makefile	vhost: introduce vDPA-based backend	2020-04-02 10:41:40 -04:00
net.c	vhost_net: fix OoB on sendmsg() failure.	2021-09-22 12:27:58 +02:00
scsi.c	vhost scsi: fix error return code in vhost_scsi_set_endpoint()	2020-12-30 11:54:00 +01:00
test.c	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
test.h	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
vdpa.c	vhost-vdpa: Fix the wrong input in config_cb	2021-10-20 11:45:04 +02:00
vhost.c	vhost: Fix the calculation in vhost_overflow()	2021-08-26 08:35:42 -04:00
vhost.h	vhost: add helper to check if a vq has been setup	2020-11-15 17:30:54 -05:00
vringh.c	vringh: Use wiov->used to check for read/write desc order	2021-09-03 10:09:27 +02:00
vsock.c	vhost/vsock: fix incorrect used length reported to the guest	2021-12-01 09:19:09 +01:00