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[PULL 01/23] vhost-user-gpu: fix memory disclosure in virgl_cmd_get_caps
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From: |
Gerd Hoffmann |
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Subject: |
[PULL 01/23] vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info (CVE-2021-3545) |
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Date: |
Thu, 27 May 2021 16:23:18 +0200 |
From: Li Qiang <liq3ea@163.com>
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 9e6660c7ab87..6a332d601f80 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,
--
2.31.1
- [PULL 00/23] Vga 20210527 patches, Gerd Hoffmann, 2021/05/27
- [PULL 01/23] vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info (CVE-2021-3545),
Gerd Hoffmann <=
- [PULL 02/23] vhost-user-gpu: fix resource leak in 'vg_resource_create_2d' (CVE-2021-3544), Gerd Hoffmann, 2021/05/27
- [PULL 03/23] vhost-user-gpu: fix memory leak in vg_resource_attach_backing (CVE-2021-3544), Gerd Hoffmann, 2021/05/27
- [PULL 04/23] vhost-user-gpu: fix memory leak while calling 'vg_resource_unref' (CVE-2021-3544), Gerd Hoffmann, 2021/05/27
- [PULL 06/23] vhost-user-gpu: fix memory leak in 'virgl_resource_attach_backing' (CVE-2021-3544), Gerd Hoffmann, 2021/05/27
- [PULL 05/23] vhost-user-gpu: fix memory leak in 'virgl_cmd_resource_unref' (CVE-2021-3544), Gerd Hoffmann, 2021/05/27
- [PULL 08/23] vhost-user-gpu: abstract vg_cleanup_mapping_iov, Gerd Hoffmann, 2021/05/27
- [PULL 07/23] vhost-user-gpu: fix OOB write in 'virgl_cmd_get_capset' (CVE-2021-3546), Gerd Hoffmann, 2021/05/27
- [PULL 11/23] headers: Add udmabuf.h, Gerd Hoffmann, 2021/05/27
- [PULL 10/23] ui: Get the fd associated with udmabuf driver, Gerd Hoffmann, 2021/05/27
- [PULL 12/23] virtio-gpu: Add udmabuf helpers, Gerd Hoffmann, 2021/05/27