From nobody Sun Feb 8 15:37:42 2026 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.zoho.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 1490882640773635.7633832229704; Thu, 30 Mar 2017 07:04:00 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2B19B31B330; Thu, 30 Mar 2017 14:03:59 +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 EEEA4A09EA; Thu, 30 Mar 2017 14:03:58 +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 9DDA418521CB; Thu, 30 Mar 2017 14:03:58 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id v2UE3uX7027476 for ; Thu, 30 Mar 2017 10:03:56 -0400 Received: by smtp.corp.redhat.com (Postfix) id 591B65C547; Thu, 30 Mar 2017 14:03:56 +0000 (UTC) Received: from caroline.brq.redhat.com (dhcp129-198.brq.redhat.com [10.34.129.198]) by smtp.corp.redhat.com (Postfix) with ESMTP id D4A9971CA3 for ; Thu, 30 Mar 2017 14:03:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 2B19B31B330 Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=libvir-list-bounces@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 2B19B31B330 From: Martin Kletzander To: libvir-list@redhat.com Date: Thu, 30 Mar 2017 16:03:33 +0200 Message-Id: <7b3ca048d753883ce62282a0b95291b604240c22.1490882550.git.mkletzan@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH 01/16] conf: Fix possible memleak in capabilities 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 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Thu, 30 Mar 2017 14:03:59 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" If formatting NUMA topology fails, the function returns immediatelly, but the buffer structure allocated on the stack references lot of heap-allocated memory and that would get lost in such case. Signed-off-by: Martin Kletzander --- src/conf/capabilities.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/conf/capabilities.c b/src/conf/capabilities.c index 08907aced1b9..be95c50cfb67 100644 --- a/src/conf/capabilities.c +++ b/src/conf/capabilities.c @@ -955,7 +955,7 @@ virCapabilitiesFormatXML(virCapsPtr caps) if (caps->host.nnumaCell && virCapabilitiesFormatNUMATopology(&buf, caps->host.nnumaCell, caps->host.numaCell) < 0) - return NULL; + goto error; for (i =3D 0; i < caps->host.nsecModels; i++) { virBufferAddLit(&buf, "\n"); @@ -1072,6 +1072,10 @@ virCapabilitiesFormatXML(virCapsPtr caps) return NULL; return virBufferContentAndReset(&buf); + + error: + virBufferFreeAndReset(&buf); + return NULL; } /* get the maximum ID of cpus in the host */ --=20 2.12.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list