From nobody Wed Dec 17 05:31:29 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1500388625138999.8865285296575; Tue, 18 Jul 2017 07:37:05 -0700 (PDT) Received: from localhost ([::1]:56889 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXTcS-0000V2-1Y for importer@patchew.org; Tue, 18 Jul 2017 10:37:00 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53614) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXTKq-00010l-El for qemu-devel@nongnu.org; Tue, 18 Jul 2017 10:18:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dXTKp-0007ur-Hi for qemu-devel@nongnu.org; Tue, 18 Jul 2017 10:18:48 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35126) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dXTKg-0007ma-9q; Tue, 18 Jul 2017 10:18:38 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4C51D7CB8C; Tue, 18 Jul 2017 14:18:37 +0000 (UTC) Received: from noname.str.redhat.com (dhcp-192-175.str.redhat.com [10.33.192.175]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5C24C6F940; Tue, 18 Jul 2017 14:18:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 4C51D7CB8C Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=kwolf@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 4C51D7CB8C From: Kevin Wolf To: qemu-block@nongnu.org Date: Tue, 18 Jul 2017 16:18:03 +0200 Message-Id: <1500387486-5469-19-git-send-email-kwolf@redhat.com> In-Reply-To: <1500387486-5469-1-git-send-email-kwolf@redhat.com> References: <1500387486-5469-1-git-send-email-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Tue, 18 Jul 2017 14:18:37 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 18/21] vvfat: initialize memory after allocating it X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Herv=C3=A9 Poussineau This prevents some host to guest memory content leaks. Fixes: https://bugs.launchpad.net/qemu/+bug/1599539 Signed-off-by: Herv=C3=A9 Poussineau Signed-off-by: Kevin Wolf --- block/vvfat.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/vvfat.c b/block/vvfat.c index ea7775f..6b11596 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -115,6 +115,7 @@ static inline int array_ensure_allocated(array_t* array= , int index) array->pointer =3D g_realloc(array->pointer, new_size); if (!array->pointer) return -1; + memset(array->pointer + array->size, 0, new_size - array->size); array->size =3D new_size; array->next =3D index + 1; } --=20 1.8.3.1