From nobody Sat Nov 23 23:33:12 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1728908405; cv=none; d=zohomail.com; s=zohoarc; b=RouUV3EnibzMCLEPbeqO93kw2yuBzXM6079t8ipwSq8AH4sfwiVZvEFcAkE++nNlAFD1k43u0d9BIE9Dh1difWJIsJmGdaDqtG+j0bQqsIsX1+Rp2OPmITJQTU3FMHFj4IuFdM4QmPX39ozhnsaQQAyO5DD9Rm+Lw5ut6H8Js8w= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1728908405; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=IKN4iAsi5NVF1f6/ulj+7kQ5Y/EKZ9Qlm2g5k59mkj0=; b=nMoOS3C+/PQpalEbPFpBvsPDRNK6exl8UHKVDk4d3v+41NTcCGBnWXAl0BFmnzwl1BP/hTKx/E4ckPwsHsk5QliPg/ieYSYVCW/8NmQLioHX7Em7YS8koPYDXW17d0xQxecIy80EaBA8qZWCSDdzdZquCK1Ipkn5q81TQ6hKl8M= ARC-Authentication-Results: i=1; mx.zohomail.com; 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) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1728908405579629.1285438408345; Mon, 14 Oct 2024 05:20:05 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t0K32-0003Jf-RP; Mon, 14 Oct 2024 08:19:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t0K31-0003JW-Aw for qemu-devel@nongnu.org; Mon, 14 Oct 2024 08:19:39 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t0K2z-0001SQ-QP for qemu-devel@nongnu.org; Mon, 14 Oct 2024 08:19:39 -0400 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4XRx4q5d8vz6LDTQ; Mon, 14 Oct 2024 20:15:07 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id E127F140C72; Mon, 14 Oct 2024 20:19:34 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.19.247) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Mon, 14 Oct 2024 14:19:34 +0200 To: , CC: Dmitry Frolov , Ajay Joshi , Yao Xingtao , Fan Ni , Shiju Jose , , Subject: [PATCH qemu 1/7] hw/cxl: Fix uint32 overflow cxl-mailbox-utils.c Date: Mon, 14 Oct 2024 13:18:56 +0100 Message-ID: <20241014121902.2146424-2-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241014121902.2146424-1-Jonathan.Cameron@huawei.com> References: <20241014121902.2146424-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.122.19.247] X-ClientProxiedBy: lhrpeml100005.china.huawei.com (7.191.160.25) To frapeml500008.china.huawei.com (7.182.85.71) 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=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jonathan Cameron From: Jonathan Cameron via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1728908407064116600 Content-Type: text/plain; charset="utf-8" From: Dmitry Frolov The sum offset + length may overflow uint32. Since this sum is compared with uint64_t return value of get_lsa_size(), it makes sense to choose uint64_t type for offset and length. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 3ebe676a3463 ("hw/cxl/device: Implement get/set Label Storage Area (= LSA)") Signed-off-by: Dmitry Frolov Link: https://lore.kernel.org/r/20240917080925.270597-2-frolov@swemel.ru Signed-off-by: Jonathan Cameron --- hw/cxl/cxl-mailbox-utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 9258e48f95..9f794e4655 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -1445,7 +1445,7 @@ static CXLRetCode cmd_ccls_get_lsa(const struct cxl_c= md *cmd, } QEMU_PACKED *get_lsa; CXLType3Dev *ct3d =3D CXL_TYPE3(cci->d); CXLType3Class *cvc =3D CXL_TYPE3_GET_CLASS(ct3d); - uint32_t offset, length; + uint64_t offset, length; =20 get_lsa =3D (void *)payload_in; offset =3D get_lsa->offset; --=20 2.43.0