Otherwise some of the 'resp' will be leaked to guest.
Fixes: CVE-2021-3545
Reported-by: Li Qiang <liq3ea@163.com>
virtio-gpu fix:
42a8dadc74 ("virtio-gpu: fix information leak
in getting capset info dispatch")
Signed-off-by: Li Qiang <liq3ea@163.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20210516030403.107723-2-liq3ea@163.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
VUGPU_FILL_CMD(info);
+ memset(&resp, 0, sizeof(resp));
if (info.capset_index == 0) {
resp.capset_id = VIRTIO_GPU_CAPSET_VIRGL;
virgl_renderer_get_cap_set(resp.capset_id,