summaryrefslogtreecommitdiff
path: root/gnu/packages/patches/qemu-CVE-2017-5552.patch
blob: 50911f4f36f545b39dca1b87c1d99740acfdce7f (about) (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
From 33243031dad02d161225ba99d782616da133f689 Mon Sep 17 00:00:00 2001
From: Li Qiang <liq3ea@gmail.com>
Date: Thu, 29 Dec 2016 03:11:26 -0500
Subject: [PATCH] virtio-gpu-3d: fix memory leak in resource attach backing
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

If the virgl_renderer_resource_attach_iov function fails the
'res_iovs' will be leaked. Add check of the return value to
free the 'res_iovs' when failing.

http://git.qemu.org/?p=qemu.git;a=patch;h=33243031dad02d161225ba99d782616da133f689
this patch is from qemu-git.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1482999086-59795-1-git-send-email-liq3ea@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/display/virtio-gpu-3d.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/hw/display/virtio-gpu-3d.c b/hw/display/virtio-gpu-3d.c
index e29f099..b13ced3 100644
--- a/hw/display/virtio-gpu-3d.c
+++ b/hw/display/virtio-gpu-3d.c
@@ -291,8 +291,11 @@ static void virgl_resource_attach_backing(VirtIOGPU *g,
         return;
     }
 
-    virgl_renderer_resource_attach_iov(att_rb.resource_id,
-                                       res_iovs, att_rb.nr_entries);
+    ret = virgl_renderer_resource_attach_iov(att_rb.resource_id,
+                                             res_iovs, att_rb.nr_entries);
+
+    if (ret != 0)
+        virtio_gpu_cleanup_mapping_iov(res_iovs, att_rb.nr_entries);
 }
 
 static void virgl_resource_detach_backing(VirtIOGPU *g,
-- 
1.7.0.4