From nobody Tue Feb 10 01:30:53 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=163.com ARC-Seal: i=1; a=rsa-sha256; t=1621134476; cv=none; d=zohomail.com; s=zohoarc; b=kLpm6Do2hk6dbYNbbJNfh9WgOxdWpBLjh8M0U27kWwDCYbSr9QPYL7yDQuggrCD9nzQDiNUe2obzBcc7MNEOjPV2+wKOabaE8lfGfKaCC4FsT9FekD40vFp7GeNX6vnAG+tIQJ3JgTU/y/BTD36f8wAhcq9Hq9XREgqMSEwSCcI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1621134476; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=8RKfS0LKkqB2rg2p/FeSJzPg2FwjNOaF3v/+HsGrsW0=; b=astcpdfbPvT6Lan9WmbJrkWs7KfMYp6G8cZnVtHiqEH2t3McJDf6EODSof9CSBPZuzhVmu/2s17dt0CSDQliB5ww1yu8FxQvsefMhsuCDq+L0STjJewAxBWmKl86fwAf/MfhMsRh1GXwzzEXOQC0YqTB5S8/0Q5988zGhFdJQQA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1621134476179163.41352762841836; Sat, 15 May 2021 20:07:56 -0700 (PDT) Received: from localhost ([::1]:35578 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1li78F-0000WX-4l for importer@patchew.org; Sat, 15 May 2021 23:07:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45696) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1li74o-0000om-Eb for qemu-devel@nongnu.org; Sat, 15 May 2021 23:04:22 -0400 Received: from m12-13.163.com ([220.181.12.13]:51847) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1li74i-0002Zj-VH for qemu-devel@nongnu.org; Sat, 15 May 2021 23:04:20 -0400 Received: from ubuntu.localdomain (unknown [115.200.200.157]) by smtp9 (Coremail) with SMTP id DcCowAC3evili6Bg85SBAw--.61303S5; Sun, 16 May 2021 11:04:08 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=8RKfS 0LKkqB2rg2p/FeSJzPg2FwjNOaF3v/+HsGrsW0=; b=kU/Xo7HCj2Lq5zlnWe72B 7UHwCl9hVxr+f4c7/CXeU5ADfUPCuLrFGqk6vQQPbrzPaG1XYmip6jsUsVrZH5Ir tpI1JQiv9Kak8qIoYoMQ8O3movsb/5d6yzE4zb/LhmJlWiz8X3WJBY42y4vQ/xwI 47qC2LNleh3IZSH5TMmnSk= From: Li Qiang To: marcandre.lureau@redhat.com, kraxel@redhat.com, philmd@redhat.com, ppandit@redhat.com, mcascell@redhat.com, qemu-devel@nongnu.org Subject: [PATCH v2 1/8] vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info (CVE-2021-3545) Date: Sat, 15 May 2021 20:03:56 -0700 Message-Id: <20210516030403.107723-2-liq3ea@163.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210516030403.107723-1-liq3ea@163.com> References: <20210516030403.107723-1-liq3ea@163.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: DcCowAC3evili6Bg85SBAw--.61303S5 X-Coremail-Antispam: 1Uf129KBjvdXoW7Gry5Kr47JrWUur4DurWxWFg_yoW3urg_ZF yFyrn7AF4DWFW0kr45Z3W5JrWay3yrAFsayFnakrn7ZFyF93W5Xwn3t3s7C34fuw43GF4D AFy0yw4rG3Z09jkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU8QAw7UUUUU== X-Originating-IP: [115.200.200.157] X-CM-SenderInfo: 5oltjvrd6rljoofrz/xtbByQiUbV1vkd6VCwAAsb Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=220.181.12.13; envelope-from=liq3ea@163.com; helo=m12-13.163.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Li Qiang , liq3ea@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @163.com) Content-Type: text/plain; charset="utf-8" Otherwise some of the 'resp' will be leaked to guest. Fixes: CVE-2021-3545 Reported-by: Li Qiang virtio-gpu fix: 42a8dadc74 ("virtio-gpu: fix information leak in getting capset info dispatch") Signed-off-by: Li Qiang --- contrib/vhost-user-gpu/virgl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c index 9e6660c7ab..6a332d601f 100644 --- a/contrib/vhost-user-gpu/virgl.c +++ b/contrib/vhost-user-gpu/virgl.c @@ -128,6 +128,7 @@ virgl_cmd_get_capset_info(VuGpu *g, =20 VUGPU_FILL_CMD(info); =20 + memset(&resp, 0, sizeof(resp)); if (info.capset_index =3D=3D 0) { resp.capset_id =3D VIRTIO_GPU_CAPSET_VIRGL; virgl_renderer_get_cap_set(resp.capset_id, --=20 2.25.1