[0/3] xen: fix a potential crash in xen-bus

Message ID	20190911143618.23477-1-paul.durrant@citrix.com (mailing list archive)
Headers	show Return-Path: <SRS0=B9BE=XG=nongnu.org=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 49B8520863 Received-SPF: None (esa2.hc3370-68.iphmx.com: no sender authenticity information available from domain of paul.durrant@citrix.com) identity=pra; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="Paul.Durrant@citrix.com"; x-sender="paul.durrant@citrix.com"; x-conformance=sidf_compatible Received-SPF: Pass (esa2.hc3370-68.iphmx.com: domain of Paul.Durrant@citrix.com designates 162.221.158.21 as permitted sender) identity=mailfrom; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="Paul.Durrant@citrix.com"; x-sender="Paul.Durrant@citrix.com"; x-conformance=sidf_compatible; x-record-type="v=spf1"; x-record-text="v=spf1 ip4:209.167.231.154 ip4:178.63.86.133 ip4:195.66.111.40/30 ip4:85.115.9.32/28 ip4:199.102.83.4 ip4:192.28.146.160 ip4:192.28.146.107 ip4:216.52.6.88 ip4:216.52.6.188 ip4:162.221.158.21 ip4:162.221.156.83 ~all" Received-SPF: None (esa2.hc3370-68.iphmx.com: no sender authenticity information available from domain of postmaster@mail.citrix.com) identity=helo; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="Paul.Durrant@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: L6SAZik8xsVrNDnFj2N+Aya3BqFqrx0OO8jGxxDMlKLjWOvwhZMZrV+ST6V9vCSxeDiyddSsMX tpl1qJ2bNWIpBhWiioLvEoLlHDkp0mvwtpQ5930ny7O3V77gHgmeyeZHfyYPUijsHqK8d4i6yB jTXjjPoLJwIFzvJZ8j+niKM1N8cuQ3et8ck945S7EvkY+8a5I3QiwukQPkIEJWTN80BN88fp2e +QMqiuhbSmUeSdWMKzxlQSZibwwOWZOIJxTM4VS3wj8SAbGMKh8Y2KD4C4dgNpDq4FYeq12MZj aWg= From: Paul Durrant <paul.durrant@citrix.com> To: <qemu-devel@nongnu.org>, <xen-devel@lists.xenproject.org> Date: Wed, 11 Sep 2019 15:36:15 +0100 Message-ID: <20190911143618.23477-1-paul.durrant@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Subject: [Qemu-devel] [PATCH 0/3] xen: fix a potential crash in xen-bus Precedence: list Cc: Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul.durrant@citrix.com>, Stefano Stabellini <sstabellini@kernel.org> Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>
Series	xen: fix a potential crash in xen-bus \| expand [0/3] xen: fix a potential crash in xen-bus [1/3] xen / notify: introduce a new XenWatchList abstraction [2/3] xen: introduce separate XenWatchList for XenDevice objects [3/3] xen: perform XenDevice clean-up in XenBus watch handler

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From: Paul Durrant <paul.durrant@citrix.com>
To: <qemu-devel@nongnu.org>, <xen-devel@lists.xenproject.org>
Date: Wed, 11 Sep 2019 15:36:15 +0100
Message-ID: <20190911143618.23477-1-paul.durrant@citrix.com>
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Subject: [Qemu-devel] [PATCH 0/3] xen: fix a potential crash in xen-bus
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Cc: Anthony Perard <anthony.perard@citrix.com>,
 Paul Durrant <paul.durrant@citrix.com>,
 Stefano Stabellini <sstabellini@kernel.org>
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Series

xen: fix a potential crash in xen-bus | expand

Message

Paul Durrant Sept. 11, 2019, 2:36 p.m. UTC

This series fixes a potential segfault caused by NotifierList corruption
in xen-bus. The first two patches lay the groundwork and the third
actually fixes the problem.

Paul Durrant (3):
  xen / notify: introduce a new XenWatchList abstraction
  xen: introduce separate XenWatchList for XenDevice objects
  xen: perform XenDevice clean-up in XenBus watch handler

 hw/xen/trace-events      |   9 +-
 hw/xen/xen-bus.c         | 266 ++++++++++++++++++++++++++++-----------
 include/hw/xen/xen-bus.h |   7 +-
 include/qemu/notify.h    |   2 +
 util/notify.c            |   5 +
 5 files changed, 212 insertions(+), 77 deletions(-)
---
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>