From nobody Sun Feb 8 06:00:04 2026 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 150012547838252.92025437920256; Sat, 15 Jul 2017 06:31:18 -0700 (PDT) Received: from localhost ([::1]:42155 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dWNAC-0005hU-3P for importer@patchew.org; Sat, 15 Jul 2017 09:31:16 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43393) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dWN8R-00043a-8A for qemu-devel@nongnu.org; Sat, 15 Jul 2017 09:29:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dWN8Q-00038B-CZ for qemu-devel@nongnu.org; Sat, 15 Jul 2017 09:29:27 -0400 Received: from smtp4-g21.free.fr ([2a01:e0c:1:1599::13]:37817) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dWN8O-00037a-1z; Sat, 15 Jul 2017 09:29:24 -0400 Received: from localhost.localdomain (unknown [IPv6:2a01:e34:ee6b:9c80:6267:20ff:fe65:a488]) by smtp4-g21.free.fr (Postfix) with ESMTP id D981119F5A1; Sat, 15 Jul 2017 15:29:17 +0200 (CEST) From: =?UTF-8?q?Herv=C3=A9=20Poussineau?= To: qemu-devel@nongnu.org Date: Sat, 15 Jul 2017 15:28:41 +0200 Message-Id: <20170715132841.9865-5-hpoussin@reactos.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170715132841.9865-1-hpoussin@reactos.org> References: <20170715132841.9865-1-hpoussin@reactos.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Windows NT kernel [generic] [fuzzy] X-Received-From: 2a01:e0c:1:1599::13 Subject: [Qemu-devel] [PATCH 4/4] 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: Kevin Wolf , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , qemu-block@nongnu.org, Max Reitz 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" This prevents some host to guest memory content leaks. Fixes: https://bugs.launchpad.net/qemu/+bug/1599539 Signed-off-by: Herv=C3=A9 Poussineau --- block/vvfat.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/vvfat.c b/block/vvfat.c index afc6170a69..7340decef3 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 2.11.0