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- 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
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