9e49deb609
- Fix out-of-bounds write in virgl_cmd_get_capset CVE-2021-3546 bsc#1185981 vhost-user-gpu-abstract-vg_cleanup_mappi.patch - Fix memory leaks found in the virtio vhost-user GPU device CVE-2021-3544 vhost-user-gpu-fix-leak-in-virgl_cmd_res.patch vhost-user-gpu-fix-leak-in-virgl_resourc.patch vhost-user-gpu-fix-memory-disclosure-in-.patch vhost-user-gpu-fix-memory-leak-in-vg_res.patch vhost-user-gpu-fix-memory-leak-while-cal.patch vhost-user-gpu-fix-OOB-write-in-virgl_cm.patch - Fix information disclosure due to uninitialized memory read CVE-2021-3545 bsc#1185990 vhost-user-gpu-fix-resource-leak-in-vg_r.patch OBS-URL: https://build.opensuse.org/request/show/898228 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=653
45 lines
1.4 KiB
Diff
45 lines
1.4 KiB
Diff
From: Li Qiang <liq3ea@163.com>
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Date: Sat, 15 May 2021 20:03:58 -0700
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Subject: vhost-user-gpu: fix memory leak in vg_resource_attach_backing
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(CVE-2021-3544)
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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: b9f79858a614d95f5de875d0ca31096eaab72c3b
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References: CVE-2021-3544
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Check whether the 'res' has already been attach_backing to avoid
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memory leak.
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Fixes: CVE-2021-3544
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Reported-by: Li Qiang <liq3ea@163.com>
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virtio-gpu fix: 204f01b309 ("virtio-gpu: fix memory leak
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in resource attach backing")
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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: <20210516030403.107723-4-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/vhost-user-gpu.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/contrib/vhost-user-gpu/vhost-user-gpu.c b/contrib/vhost-user-gpu/vhost-user-gpu.c
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index b5e153d0d648def62d5700e686c0..0437e52b64604512607e548d01d8 100644
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--- a/contrib/vhost-user-gpu/vhost-user-gpu.c
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+++ b/contrib/vhost-user-gpu/vhost-user-gpu.c
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@@ -489,6 +489,11 @@ vg_resource_attach_backing(VuGpu *g,
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return;
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}
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+ if (res->iov) {
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+ cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
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+ return;
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+ }
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+
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ret = vg_create_mapping_iov(g, &ab, cmd, &res->iov);
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if (ret != 0) {
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cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
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