From owner-svn-src-stable-12@freebsd.org Fri Jan 10 18:32:01 2020 Return-Path: Delivered-To: svn-src-stable-12@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 0DFB81EF2A0; Fri, 10 Jan 2020 18:32:01 +0000 (UTC) (envelope-from erj@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 47vWmJ4rlHz3Qfx; Fri, 10 Jan 2020 18:32:00 +0000 (UTC) (envelope-from erj@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 9CD761E3FD; Fri, 10 Jan 2020 18:32:00 +0000 (UTC) (envelope-from erj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 00AIW0jA057434; Fri, 10 Jan 2020 18:32:00 GMT (envelope-from erj@FreeBSD.org) Received: (from erj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 00AIW0b0057432; Fri, 10 Jan 2020 18:32:00 GMT (envelope-from erj@FreeBSD.org) Message-Id: <202001101832.00AIW0b0057432@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: erj set sender to erj@FreeBSD.org using -f From: Eric Joyner Date: Fri, 10 Jan 2020 18:32:00 +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: r356606 - stable/12/sys/dev/ixl X-SVN-Group: stable-12 X-SVN-Commit-Author: erj X-SVN-Commit-Paths: stable/12/sys/dev/ixl X-SVN-Commit-Revision: 356606 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Fri, 10 Jan 2020 18:32:01 -0000 Author: erj Date: Fri Jan 10 18:31:59 2020 New Revision: 356606 URL: https://svnweb.freebsd.org/changeset/base/356606 Log: MFC r356309: ixl: prevent non-privileged access to NVM update interface Sponsored by: Intel Corporation Modified: stable/12/sys/dev/ixl/if_ixl.c stable/12/sys/dev/ixl/ixl.h Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/ixl/if_ixl.c ============================================================================== --- stable/12/sys/dev/ixl/if_ixl.c Fri Jan 10 18:29:05 2020 (r356605) +++ stable/12/sys/dev/ixl/if_ixl.c Fri Jan 10 18:31:59 2020 (r356606) @@ -1625,11 +1625,29 @@ ixl_if_priv_ioctl(if_ctx_t ctx, u_long command, caddr_ struct ifdrv *ifd = (struct ifdrv *)data; int error = 0; - /* NVM update command */ - if (ifd->ifd_cmd == I40E_NVM_ACCESS) - error = ixl_handle_nvmupd_cmd(pf, ifd); - else - error = EINVAL; + /* + * The iflib_if_ioctl forwards SIOCxDRVSPEC and SIOGPRIVATE_0 without + * performing privilege checks. It is important that this function + * perform the necessary checks for commands which should only be + * executed by privileged threads. + */ + + switch(command) { + case SIOCGDRVSPEC: + case SIOCSDRVSPEC: + /* NVM update command */ + if (ifd->ifd_cmd == I40E_NVM_ACCESS) { + error = priv_check(curthread, PRIV_DRIVER); + if (error) + break; + error = ixl_handle_nvmupd_cmd(pf, ifd); + } else { + error = EINVAL; + } + break; + default: + error = EOPNOTSUPP; + } return (error); } Modified: stable/12/sys/dev/ixl/ixl.h ============================================================================== --- stable/12/sys/dev/ixl/ixl.h Fri Jan 10 18:29:05 2020 (r356605) +++ stable/12/sys/dev/ixl/ixl.h Fri Jan 10 18:31:59 2020 (r356606) @@ -52,6 +52,7 @@ #include #include #include +#include #include #include