40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
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From: Li Qiang <liq3ea@163.com>
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Date: Sat, 15 May 2021 20:03:56 -0700
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Subject: vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info
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(CVE-2021-3545)
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Git-commit: 121841b25d72d13f8cad554363138c360f1250ea
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References: CVE-2021-3545 bsc#1185990
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Otherwise some of the 'resp' will be leaked to guest.
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Fixes: CVE-2021-3545
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Reported-by: Li Qiang <liq3ea@163.com>
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virtio-gpu fix: 42a8dadc74 ("virtio-gpu: fix information leak
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in getting capset info dispatch")
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Signed-off-by: Li Qiang <liq3ea@163.com>
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Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Message-Id: <20210516030403.107723-2-liq3ea@163.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Jose R. Ziviani <jziviani@suse.de>
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---
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contrib/vhost-user-gpu/virgl.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c
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index 9e6660c7ab875fe83f366d040c97..6a332d601f8092c5017e903930e5 100644
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--- a/contrib/vhost-user-gpu/virgl.c
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+++ b/contrib/vhost-user-gpu/virgl.c
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@@ -128,6 +128,7 @@ virgl_cmd_get_capset_info(VuGpu *g,
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VUGPU_FILL_CMD(info);
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+ memset(&resp, 0, sizeof(resp));
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if (info.capset_index == 0) {
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resp.capset_id = VIRTIO_GPU_CAPSET_VIRGL;
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virgl_renderer_get_cap_set(resp.capset_id,
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