From nobody Sat Jul 5 16:18:07 2025 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 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1521502165907292.7684234885006; Mon, 19 Mar 2018 16:29:25 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 712A2356CB; Mon, 19 Mar 2018 23:29:24 +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 1CA916090B; Mon, 19 Mar 2018 23:29:24 +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 18A52180613A; Mon, 19 Mar 2018 23:29:23 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w2JNTLi8027371 for ; Mon, 19 Mar 2018 19:29:21 -0400 Received: by smtp.corp.redhat.com (Postfix) id 5292F2CFAB; Mon, 19 Mar 2018 23:29:21 +0000 (UTC) Received: from mx1.redhat.com (ext-mx03.extmail.prod.ext.phx2.redhat.com [10.5.110.27]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 4C51D608F0 for ; Mon, 19 Mar 2018 23:29:18 +0000 (UTC) Received: from smtp2.provo.novell.com (smtp2.provo.novell.com [137.65.250.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 339E783F3E for ; Mon, 19 Mar 2018 23:29:18 +0000 (UTC) Received: from linux-tbji.provo.novell.com (prv-ext-foundry1int.gns.novell.com [137.65.251.240]) by smtp2.provo.novell.com with ESMTP (NOT encrypted); Mon, 19 Mar 2018 17:29:16 -0600 From: Jim Fehlig To: libvir-list@redhat.com Date: Mon, 19 Mar 2018 17:28:43 -0600 Message-Id: <20180319232845.10619-2-jfehlig@suse.com> In-Reply-To: <20180319232845.10619-1-jfehlig@suse.com> References: <20180319232845.10619-1-jfehlig@suse.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 207 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Mon, 19 Mar 2018 23:29:18 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Mon, 19 Mar 2018 23:29:18 +0000 (UTC) for IP:'137.65.250.81' DOMAIN:'smtp2.provo.novell.com' HELO:'smtp2.provo.novell.com' FROM:'jfehlig@suse.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 137.65.250.81 smtp2.provo.novell.com 137.65.250.81 smtp2.provo.novell.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.27 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH 1/3] libxl: dont dereference NULL libxlDomainObjPrivatePtr 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 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Mon, 19 Mar 2018 23:29:24 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" In libxlDomainMigrationPrepare it is possible to dereference a NULL libxlDomainObjPrivatePtr in early error paths. Check for a valid 'priv' before using it. Signed-off-by: Jim Fehlig Reviewed-by: John Ferlan --- src/libxl/libxl_migration.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c index 7dc39ae02..c1c23dab3 100644 --- a/src/libxl/libxl_migration.c +++ b/src/libxl/libxl_migration.c @@ -804,9 +804,10 @@ libxlDomainMigrationPrepare(virConnectPtr dconn, } VIR_FREE(socks); virObjectUnref(args); - virPortAllocatorRelease(priv->migrationPort); - priv->migrationPort =3D 0; - + if (priv) { + virPortAllocatorRelease(priv->migrationPort); + priv->migrationPort =3D 0; + } /* Remove virDomainObj from domain list */ if (vm) { virDomainObjListRemove(driver->domains, vm); --=20 2.16.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list