From patchwork Thu Sep 12 12:16:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Durrant X-Patchwork-Id: 11142937 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 02BCA1599 for ; Thu, 12 Sep 2019 12:18:19 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D225C2075C for ; Thu, 12 Sep 2019 12:18:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=citrix.com header.i=@citrix.com header.b="RmdSNIQD" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D225C2075C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=citrix.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1i8O22-0007RV-K5; Thu, 12 Sep 2019 12:17:02 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1i8O22-0007RN-1A for xen-devel@lists.xenproject.org; Thu, 12 Sep 2019 12:17:02 +0000 X-Inumbo-ID: 36c11a94-d557-11e9-9597-12813bfff9fa Received: from esa4.hc3370-68.iphmx.com (unknown [216.71.155.144]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 36c11a94-d557-11e9-9597-12813bfff9fa; Thu, 12 Sep 2019 12:16:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1568290617; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=fZN3nZZEsONTUMbidkhgiHdbtQz4Q860Fkmdy/WVaMY=; b=RmdSNIQDHSzfMgJiMWNI5NdalgUHeAvFf0Y+Uvhfewrz/ahZ2nNxsx9u 4LzNcEVHGqqIeX3by/rmCeXMQdNVpAj4LK1yDr4IlEq7vVWYkPNq8xdPC efiNIwdbzIdNOxwPmzD0m5gzgRp8Sdfb5tfNh4t8GAe0cQwbUOdcTMYix I=; Authentication-Results: esa4.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none; spf=None smtp.pra=paul.durrant@citrix.com; spf=Pass smtp.mailfrom=Paul.Durrant@citrix.com; spf=None smtp.helo=postmaster@mail.citrix.com Received-SPF: None (esa4.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=esa4.hc3370-68.iphmx.com; envelope-from="Paul.Durrant@citrix.com"; x-sender="paul.durrant@citrix.com"; x-conformance=sidf_compatible Received-SPF: Pass (esa4.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=esa4.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 (esa4.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=esa4.hc3370-68.iphmx.com; envelope-from="Paul.Durrant@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: 6wHN8IyTQQNCrDCSVYBAKFOsJBLYiDlSmmbQiTmRAsOpx8FABfQfigeDeayvR6sDPvoLrlHZc7 H6hjvuq35i4cIG2fMH+M4S2d19urxN30ZA+VYdbxtkjLf46AHGQAxbrFeEVGA+j7v0LbLAR59R cWCSqU6+PDDM8DYewZpLpVQj5YVCx3wm2mc03He/RHWst5MwB+C8K/1ZspK2/40mJcmfkQxiC5 wxJQhRJTk7mlq0h5e1CXDeACM3h9GU9u8X6jyNfOeNMABHhWpClpWyCdrn4RqywJmU/8D6vRAA rcU= X-SBRS: 2.7 X-MesageID: 5769902 X-Ironport-Server: esa4.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.64,497,1559534400"; d="scan'208";a="5769902" From: Paul Durrant To: , Date: Thu, 12 Sep 2019 13:16:43 +0100 Message-ID: <20190912121646.29148-1-paul.durrant@citrix.com> X-Mailer: git-send-email 2.20.1.2.gb21ebb6 MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v2 0/3] xen: fix a potential crash in xen-bus X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Anthony Perard , Paul Durrant , Stefano Stabellini Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" 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 | 267 ++++++++++++++++++++++++++++----------- include/hw/xen/xen-bus.h | 7 +- include/qemu/notify.h | 2 + util/notify.c | 5 + 5 files changed, 213 insertions(+), 77 deletions(-) --- Cc: Anthony Perard Cc: Stefano Stabellini