diff options
| author | Li Qiang | 2021-05-16 05:03:56 +0200 |
|---|---|---|
| committer | Gerd Hoffmann | 2021-05-27 11:55:59 +0200 |
| commit | 121841b25d72d13f8cad554363138c360f1250ea (patch) | |
| tree | ca28956ce3df2f98d1a834b8bcbe7b0847ef7000 /contrib/vhost-user-gpu | |
| parent | Merge remote-tracking branch 'remotes/kraxel/tags/input-20210526-pull-request... (diff) | |
| download | qemu-121841b25d72d13f8cad554363138c360f1250ea.tar.gz qemu-121841b25d72d13f8cad554363138c360f1250ea.tar.xz qemu-121841b25d72d13f8cad554363138c360f1250ea.zip | |
vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info (CVE-2021-3545)
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>
Diffstat (limited to 'contrib/vhost-user-gpu')
| -rw-r--r-- | contrib/vhost-user-gpu/virgl.c | 1 |
1 files changed, 1 insertions, 0 deletions
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, |