0ba0561a8b
- kvm-qemu-kvm.spec-bump-libseccomp-2.4.0.patch [bz#1720306] - kvm-qxl-check-release-info-object.patch [bz#1712717] - kvm-target-i386-add-MDS-NO-feature.patch [bz#1722839] - kvm-block-file-posix-Unaligned-O_DIRECT-block-status.patch [bz#1588356] - kvm-iotests-Test-unaligned-raw-images-with-O_DIRECT.patch [bz#1588356] - kvm-rh-set-CONFIG_BOCHS_DISPLAY-y-for-x86.patch [bz#1707118] - Resolves: bz#1588356 (qemu crashed on the source host when do storage migration with source qcow2 disk created by 'qemu-img') - Resolves: bz#1707118 (enable device: bochs-display (QEMU)) - Resolves: bz#1712717 (CVE-2019-12155 qemu-kvm: QEMU: qxl: null pointer dereference while releasing spice resources [rhel-av-8]) - Resolves: bz#1720306 (VM failed to start with error "failed to install seccomp syscall filter in the kernel") - Resolves: bz#1722839 ([Intel 8.1 FEAT] MDS_NO exposure to guest - Fast Train)
52 lines
1.8 KiB
Diff
52 lines
1.8 KiB
Diff
From b779db9ffd8626b74f969a7c2484239715f2d9e8 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
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Date: Wed, 19 Jun 2019 17:18:47 +0200
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Subject: [PATCH 2/6] qxl: check release info object
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Philippe Mathieu-Daudé <philmd@redhat.com>
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Message-id: <20190619171847.32603-2-philmd@redhat.com>
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Patchwork-id: 88739
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O-Subject: [RHEL-AV-8.1.0 qemu-kvm PATCH 1/1] qxl: check release info object
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Bugzilla: 1712717
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RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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From: Prasad J Pandit <pjp@fedoraproject.org>
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When releasing spice resources in release_resource() routine,
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if release info object 'ext.info' is null, it leads to null
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pointer dereference. Add check to avoid it.
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Reported-by: Bugs SysSec <bugs-syssec@rub.de>
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Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
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Message-id: 20190425063534.32747-1-ppandit@redhat.com
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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(cherry picked from commit d52680fc932efb8a2f334cc6993e705ed1e31e99)
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Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/display/qxl.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/hw/display/qxl.c b/hw/display/qxl.c
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index c8ce578..632923a 100644
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--- a/hw/display/qxl.c
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+++ b/hw/display/qxl.c
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@@ -777,6 +777,9 @@ static void interface_release_resource(QXLInstance *sin,
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QXLReleaseRing *ring;
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uint64_t *item, id;
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+ if (!ext.info) {
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+ return;
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+ }
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if (ext.group_id == MEMSLOT_GROUP_HOST) {
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/* host group -> vga mode update request */
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QXLCommandExt *cmdext = (void *)(intptr_t)(ext.info->id);
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--
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1.8.3.1
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