| CVE: CVE-2021-3545 |
| Upstream-Status: Backport |
| Signed-off-by: Ross Burton <ross.burton@arm.com> |
| |
| From 121841b25d72d13f8cad554363138c360f1250ea Mon Sep 17 00:00:00 2001 |
| From: Li Qiang <liq3ea@163.com> |
| Date: Sat, 15 May 2021 20:03:56 -0700 |
| Subject: [PATCH 1/7] 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 |
| |
| 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> |
| --- |
| 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 |
| |