52 lines
1.8 KiB
Diff
52 lines
1.8 KiB
Diff
|
From b779db9ffd8626b74f969a7c2484239715f2d9e8 Mon Sep 17 00:00:00 2001
|
||
|
From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
|
||
|
Date: Wed, 19 Jun 2019 17:18:47 +0200
|
||
|
Subject: [PATCH 2/6] qxl: check release info object
|
||
|
MIME-Version: 1.0
|
||
|
Content-Type: text/plain; charset=UTF-8
|
||
|
Content-Transfer-Encoding: 8bit
|
||
|
|
||
|
RH-Author: Philippe Mathieu-Daudé <philmd@redhat.com>
|
||
|
Message-id: <20190619171847.32603-2-philmd@redhat.com>
|
||
|
Patchwork-id: 88739
|
||
|
O-Subject: [RHEL-AV-8.1.0 qemu-kvm PATCH 1/1] qxl: check release info object
|
||
|
Bugzilla: 1712717
|
||
|
RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
|
||
|
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
|
||
|
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
|
||
|
|
||
|
From: Prasad J Pandit <pjp@fedoraproject.org>
|
||
|
|
||
|
When releasing spice resources in release_resource() routine,
|
||
|
if release info object 'ext.info' is null, it leads to null
|
||
|
pointer dereference. Add check to avoid it.
|
||
|
|
||
|
Reported-by: Bugs SysSec <bugs-syssec@rub.de>
|
||
|
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
|
||
|
Message-id: 20190425063534.32747-1-ppandit@redhat.com
|
||
|
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
|
||
|
(cherry picked from commit d52680fc932efb8a2f334cc6993e705ed1e31e99)
|
||
|
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
|
||
|
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
|
||
|
---
|
||
|
hw/display/qxl.c | 3 +++
|
||
|
1 file changed, 3 insertions(+)
|
||
|
|
||
|
diff --git a/hw/display/qxl.c b/hw/display/qxl.c
|
||
|
index c8ce578..632923a 100644
|
||
|
--- a/hw/display/qxl.c
|
||
|
+++ b/hw/display/qxl.c
|
||
|
@@ -777,6 +777,9 @@ static void interface_release_resource(QXLInstance *sin,
|
||
|
QXLReleaseRing *ring;
|
||
|
uint64_t *item, id;
|
||
|
|
||
|
+ if (!ext.info) {
|
||
|
+ return;
|
||
|
+ }
|
||
|
if (ext.group_id == MEMSLOT_GROUP_HOST) {
|
||
|
/* host group -> vga mode update request */
|
||
|
QXLCommandExt *cmdext = (void *)(intptr_t)(ext.info->id);
|
||
|
--
|
||
|
1.8.3.1
|
||
|
|