diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/0005-vhost-user-gpu-fix-memory-leak-in-virgl_cmd_resource.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/0005-vhost-user-gpu-fix-memory-leak-in-virgl_cmd_resource.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/0005-vhost-user-gpu-fix-memory-leak-in-virgl_cmd_resource.patch b/meta/recipes-devtools/qemu/qemu/0005-vhost-user-gpu-fix-memory-leak-in-virgl_cmd_resource.patch new file mode 100644 index 0000000000..e70f3c02c2 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/0005-vhost-user-gpu-fix-memory-leak-in-virgl_cmd_resource.patch @@ -0,0 +1,58 @@ +CVE: CVE-2021-3544 +Upstream-Status: Backport +Signed-off-by: Ross Burton <ross.burton@arm.com> + +From f6091d86ba9ea05f4e111b9b42ee0005c37a6779 Mon Sep 17 00:00:00 2001 +From: Li Qiang <liq3ea@163.com> +Date: Sat, 15 May 2021 20:04:00 -0700 +Subject: [PATCH 5/7] vhost-user-gpu: fix memory leak in + 'virgl_cmd_resource_unref' (CVE-2021-3544) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The 'res->iov' will be leaked if the guest trigger following sequences: + + virgl_cmd_create_resource_2d + virgl_resource_attach_backing + virgl_cmd_resource_unref + +This patch fixes this. + +Fixes: CVE-2021-3544 +Reported-by: Li Qiang <liq3ea@163.com> +virtio-gpu fix: 5e8e3c4c75 ("virtio-gpu: fix resource leak +in virgl_cmd_resource_unref" + +Signed-off-by: Li Qiang <liq3ea@163.com> +Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> +Message-Id: <20210516030403.107723-6-liq3ea@163.com> +Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> +--- + contrib/vhost-user-gpu/virgl.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c +index 6a332d601f..c669d73a1d 100644 +--- a/contrib/vhost-user-gpu/virgl.c ++++ b/contrib/vhost-user-gpu/virgl.c +@@ -108,9 +108,16 @@ virgl_cmd_resource_unref(VuGpu *g, + struct virtio_gpu_ctrl_command *cmd) + { + struct virtio_gpu_resource_unref unref; ++ struct iovec *res_iovs = NULL; ++ int num_iovs = 0; + + VUGPU_FILL_CMD(unref); + ++ virgl_renderer_resource_detach_iov(unref.resource_id, ++ &res_iovs, ++ &num_iovs); ++ g_free(res_iovs); ++ + virgl_renderer_resource_unref(unref.resource_id); + } + +-- +2.25.1 + |