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openSUSE:Leap:15.3:Update
qemu.20374
vhost-user-gpu-fix-memory-leak-in-vg_res.patch
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File vhost-user-gpu-fix-memory-leak-in-vg_res.patch of Package qemu.20374
From: Li Qiang <liq3ea@163.com> Date: Sat, 15 May 2021 20:03:58 -0700 Subject: vhost-user-gpu: fix memory leak in vg_resource_attach_backing (CVE-2021-3544) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Git-commit: b9f79858a614d95f5de875d0ca31096eaab72c3b References: CVE-2021-3544 bsc#1186010 Check whether the 'res' has already been attach_backing to avoid memory leak. Fixes: CVE-2021-3544 Reported-by: Li Qiang <liq3ea@163.com> virtio-gpu fix: 204f01b309 ("virtio-gpu: fix memory leak in resource attach backing") Signed-off-by: Li Qiang <liq3ea@163.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210516030403.107723-4-liq3ea@163.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Jose R. Ziviani <jziviani@suse.de> --- contrib/vhost-user-gpu/vhost-user-gpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/contrib/vhost-user-gpu/vhost-user-gpu.c b/contrib/vhost-user-gpu/vhost-user-gpu.c index 74c97c1585f6bd2e9cef94cde3af..e728237858d279a32698c0fc0de7 100644 --- a/contrib/vhost-user-gpu/vhost-user-gpu.c +++ b/contrib/vhost-user-gpu/vhost-user-gpu.c @@ -468,6 +468,11 @@ vg_resource_attach_backing(VuGpu *g, return; } + if (res->iov) { + cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; + return; + } + ret = vg_create_mapping_iov(g, &ab, cmd, &res->iov); if (ret != 0) { cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
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