From: Li Qiang Date: Sat, 15 May 2021 20:03:56 -0700 Subject: vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info (CVE-2021-3545) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Git-commit: 121841b25d72d13f8cad554363138c360f1250ea References: CVE-2021-3545 bsc#1185990 Otherwise some of the 'resp' will be leaked to guest. Fixes: CVE-2021-3545 Reported-by: Li Qiang virtio-gpu fix: 42a8dadc74 ("virtio-gpu: fix information leak in getting capset info dispatch") Signed-off-by: Li Qiang Reviewed-by: Marc-André Lureau Message-Id: <20210516030403.107723-2-liq3ea@163.com> Signed-off-by: Gerd Hoffmann Signed-off-by: Jose R. Ziviani --- 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 9e6660c7ab875fe83f366d040c97..6a332d601f8092c5017e903930e5 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,