From nobody Mon May 6 00:02:19 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1527761509483160.5122292813951; Thu, 31 May 2018 03:11:49 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1E2129CAA7; Thu, 31 May 2018 10:11:47 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 52CCC5D9CC; Thu, 31 May 2018 10:11:46 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 8A2581800C9B; Thu, 31 May 2018 10:11:44 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w4VABglE026140 for ; Thu, 31 May 2018 06:11:42 -0400 Received: by smtp.corp.redhat.com (Postfix) id 280372166BB6; Thu, 31 May 2018 10:11:42 +0000 (UTC) Received: from moe.brq.redhat.com (unknown [10.43.2.192]) by smtp.corp.redhat.com (Postfix) with ESMTP id C02902166BB2 for ; Thu, 31 May 2018 10:11:41 +0000 (UTC) From: Michal Privoznik To: libvir-list@redhat.com Date: Thu, 31 May 2018 12:11:36 +0200 Message-Id: X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH] testUpdateQEMUCaps: Don't leak host cpuData X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 31 May 2018 10:11:48 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" When preparing qemuCaps for test cases the following is happening: qemuTestParseCapabilitiesArch() is called, which calls virQEMUCapsLoadCache() which in turn calls virQEMUCapsInitHostCPUModel() which sets qemuCaps->kvmCPU and qemuCaps->tcgCPU. But then the code tries to update the capabilities: testCompareXMLToArgv() calls testUpdateQEMUCaps() which calls virQEMUCapsInitHostCPUModel() again overwriting previously allocated memory. The solution is to free host cpuData in testUpdateQEMUCaps(). Signed-off-by: Michal Privoznik Reviewed-by: Jiri Denemark --- Technically this is v2 of [1] but since it implements completely different approach I'm sending it as v1. 1: https://www.redhat.com/archives/libvir-list/2018-May/msg02260.html src/qemu/qemu_capabilities.c | 21 +++++++++++++++++++-- src/qemu/qemu_capspriv.h | 4 ++++ tests/qemuxml2argvtest.c | 3 +++ 3 files changed, 26 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index e2e76e4dd8..ea1ff520d8 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1516,12 +1516,19 @@ virQEMUCapsHostCPUDataCopy(virQEMUCapsHostCPUDataPt= r dst, =20 =20 static void -virQEMUCapsHostCPUDataClear(virQEMUCapsHostCPUDataPtr cpuData) +virQEMUCapsHostCPUDataClearHostCPU(virQEMUCapsHostCPUDataPtr cpuData) { - qemuMonitorCPUModelInfoFree(cpuData->info); virCPUDefFree(cpuData->reported); virCPUDefFree(cpuData->migratable); virCPUDefFree(cpuData->full); +} + + +static void +virQEMUCapsHostCPUDataClear(virQEMUCapsHostCPUDataPtr cpuData) +{ + qemuMonitorCPUModelInfoFree(cpuData->info); + virQEMUCapsHostCPUDataClearHostCPU(cpuData); =20 memset(cpuData, 0, sizeof(*cpuData)); } @@ -2834,6 +2841,16 @@ virQEMUCapsNewHostCPUModel(void) } =20 =20 +void +virQEMUCapsFreeHostCPUModel(virQEMUCapsPtr qemuCaps, + virDomainVirtType type) +{ + virQEMUCapsHostCPUDataPtr cpuData =3D virQEMUCapsGetHostCPUData(qemuCa= ps, type); + + virQEMUCapsHostCPUDataClearHostCPU(cpuData); +} + + void virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps, virArch hostArch, diff --git a/src/qemu/qemu_capspriv.h b/src/qemu/qemu_capspriv.h index 0199501c93..fea039ef3a 100644 --- a/src/qemu/qemu_capspriv.h +++ b/src/qemu/qemu_capspriv.h @@ -56,6 +56,10 @@ void virQEMUCapsSetArch(virQEMUCapsPtr qemuCaps, virArch arch); =20 +void +virQEMUCapsFreeHostCPUModel(virQEMUCapsPtr qemuCaps, + virDomainVirtType type); + void virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps, virArch hostArch, diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index a6a40e273e..61c7ae59aa 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -388,6 +388,9 @@ testUpdateQEMUCaps(const struct testInfo *info, if (testAddCPUModels(info->qemuCaps, info->skipLegacyCPUs) < 0) goto cleanup; =20 + virQEMUCapsFreeHostCPUModel(info->qemuCaps, VIR_DOMAIN_VIRT_KVM); + virQEMUCapsFreeHostCPUModel(info->qemuCaps, VIR_DOMAIN_VIRT_QEMU); + virQEMUCapsInitHostCPUModel(info->qemuCaps, caps->host.arch, VIR_DOMAIN_VIRT_KVM); virQEMUCapsInitHostCPUModel(info->qemuCaps, caps->host.arch, --=20 2.16.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list