diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch')
-rw-r--r-- | meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch b/meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch new file mode 100644 index 0000000000..9fc2fafe1d --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/0004-vhost-user-gpu-fix-memory-leak-while-calling-vg_reso.patch | |||
@@ -0,0 +1,50 @@ | |||
1 | CVE: CVE-2021-3544 | ||
2 | Upstream-Status: Backport | ||
3 | Signed-off-by: Ross Burton <ross.burton@arm.com> | ||
4 | |||
5 | From b7afebcf9e6ecf3cf9b5a9b9b731ed04bca6aa3e Mon Sep 17 00:00:00 2001 | ||
6 | From: Li Qiang <liq3ea@163.com> | ||
7 | Date: Sat, 15 May 2021 20:03:59 -0700 | ||
8 | Subject: [PATCH 4/7] vhost-user-gpu: fix memory leak while calling | ||
9 | 'vg_resource_unref' (CVE-2021-3544) | ||
10 | MIME-Version: 1.0 | ||
11 | Content-Type: text/plain; charset=UTF-8 | ||
12 | Content-Transfer-Encoding: 8bit | ||
13 | |||
14 | If the guest trigger following sequences, the attach_backing will be leaked: | ||
15 | |||
16 | vg_resource_create_2d | ||
17 | vg_resource_attach_backing | ||
18 | vg_resource_unref | ||
19 | |||
20 | This patch fix this by freeing 'res->iov' in vg_resource_destroy. | ||
21 | |||
22 | Fixes: CVE-2021-3544 | ||
23 | Reported-by: Li Qiang <liq3ea@163.com> | ||
24 | virtio-gpu fix: 5e8e3c4c75 ("virtio-gpu: fix resource leak | ||
25 | in virgl_cmd_resource_unref") | ||
26 | |||
27 | Reviewed-by: Prasad J Pandit <pjp@fedoraproject.org> | ||
28 | Signed-off-by: Li Qiang <liq3ea@163.com> | ||
29 | Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> | ||
30 | Message-Id: <20210516030403.107723-5-liq3ea@163.com> | ||
31 | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> | ||
32 | --- | ||
33 | contrib/vhost-user-gpu/vhost-user-gpu.c | 1 + | ||
34 | 1 file changed, 1 insertion(+) | ||
35 | |||
36 | diff --git a/contrib/vhost-user-gpu/vhost-user-gpu.c b/contrib/vhost-user-gpu/vhost-user-gpu.c | ||
37 | index 0437e52b64..770dfad529 100644 | ||
38 | --- a/contrib/vhost-user-gpu/vhost-user-gpu.c | ||
39 | +++ b/contrib/vhost-user-gpu/vhost-user-gpu.c | ||
40 | @@ -400,6 +400,7 @@ vg_resource_destroy(VuGpu *g, | ||
41 | } | ||
42 | |||
43 | vugbm_buffer_destroy(&res->buffer); | ||
44 | + g_free(res->iov); | ||
45 | pixman_image_unref(res->image); | ||
46 | QTAILQ_REMOVE(&g->reslist, res, next); | ||
47 | g_free(res); | ||
48 | -- | ||
49 | 2.25.1 | ||
50 | |||