Otherwise some of the 'resp' will be leaked to guest. Fixes: CVE-2021-3545 Reported-by: Li Qiang <liq...@163.com> virtio-gpu fix: 42a8dadc74 ("virtio-gpu: fix information leak in getting capset info dispatch")
Signed-off-by: Li Qiang <liq...@163.com> --- contrib/vhost-user-gpu/virgl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c index 9e6660c7ab..6a332d601f 100644 --- a/contrib/vhost-user-gpu/virgl.c +++ b/contrib/vhost-user-gpu/virgl.c @@ -128,6 +128,7 @@ virgl_cmd_get_capset_info(VuGpu *g, 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, -- 2.25.1