From owner-svn-src-stable-12@freebsd.org Wed Dec 12 12:00:35 2018 Return-Path: Delivered-To: svn-src-stable-12@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 573EB133AD32; Wed, 12 Dec 2018 12:00:35 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 9A4268CC28; Wed, 12 Dec 2018 12:00:34 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 86C927983; Wed, 12 Dec 2018 12:00:34 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wBCC0Y4G064281; Wed, 12 Dec 2018 12:00:34 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wBCC0YOc064280; Wed, 12 Dec 2018 12:00:34 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201812121200.wBCC0YOc064280@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Wed, 12 Dec 2018 12:00:34 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r341919 - stable/12/sys/dev/mlx5/mlx5_ib X-SVN-Group: stable-12 X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: stable/12/sys/dev/mlx5/mlx5_ib X-SVN-Commit-Revision: 341919 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 9A4268CC28 X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-0.59 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_SHORT(-0.59)[-0.587,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-stable-12@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for only the 12-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Dec 2018 12:00:35 -0000 Author: hselasky Date: Wed Dec 12 12:00:34 2018 New Revision: 341919 URL: https://svnweb.freebsd.org/changeset/base/341919 Log: MFC r341553: mlx5: Fix integer overflow while resizing CQ The user can provide very large cqe_size which will cause to integer overflow. Linux commit: 28e9091e3119933c38933cb8fc48d5618eb784c8 Sponsored by: Mellanox Technologies Modified: stable/12/sys/dev/mlx5/mlx5_ib/mlx5_ib_cq.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/mlx5/mlx5_ib/mlx5_ib_cq.c ============================================================================== --- stable/12/sys/dev/mlx5/mlx5_ib/mlx5_ib_cq.c Wed Dec 12 11:57:27 2018 (r341918) +++ stable/12/sys/dev/mlx5/mlx5_ib/mlx5_ib_cq.c Wed Dec 12 12:00:34 2018 (r341919) @@ -1124,7 +1124,12 @@ static int resize_user(struct mlx5_ib_dev *dev, struct if (ucmd.reserved0 || ucmd.reserved1) return -EINVAL; - umem = ib_umem_get(context, ucmd.buf_addr, entries * ucmd.cqe_size, + /* check multiplication overflow */ + if (ucmd.cqe_size && SIZE_MAX / ucmd.cqe_size <= entries - 1) + return -EINVAL; + + umem = ib_umem_get(context, ucmd.buf_addr, + (size_t)ucmd.cqe_size * entries, IB_ACCESS_LOCAL_WRITE, 1); if (IS_ERR(umem)) { err = PTR_ERR(umem);