From owner-svn-src-stable-9@FreeBSD.ORG Wed Nov 7 16:52:02 2012 Return-Path: Delivered-To: svn-src-stable-9@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 34385C74; Wed, 7 Nov 2012 16:52:02 +0000 (UTC) (envelope-from jh@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id F1F2C8FC08; Wed, 7 Nov 2012 16:52:01 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.5/8.14.5) with ESMTP id qA7Gq1ga067271; Wed, 7 Nov 2012 16:52:01 GMT (envelope-from jh@svn.freebsd.org) Received: (from jh@localhost) by svn.freebsd.org (8.14.5/8.14.5/Submit) id qA7Gq1aU067269; Wed, 7 Nov 2012 16:52:01 GMT (envelope-from jh@svn.freebsd.org) Message-Id: <201211071652.qA7Gq1aU067269@svn.freebsd.org> From: Jaakko Heinonen Date: Wed, 7 Nov 2012 16:52:01 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r242699 - stable/9/sys/dev/md X-SVN-Group: stable-9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-9@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for only the 9-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Nov 2012 16:52:02 -0000 Author: jh Date: Wed Nov 7 16:52:01 2012 New Revision: 242699 URL: http://svnweb.freebsd.org/changeset/base/242699 Log: MFC r238991: Disallow sectorsize larger than MAXPHYS and mediasize smaller than sectorsize. PR: 169947 Modified: stable/9/sys/dev/md/md.c Directory Properties: stable/9/sys/ (props changed) stable/9/sys/dev/ (props changed) Modified: stable/9/sys/dev/md/md.c ============================================================================== --- stable/9/sys/dev/md/md.c Wed Nov 7 16:34:09 2012 (r242698) +++ stable/9/sys/dev/md/md.c Wed Nov 7 16:52:01 2012 (r242699) @@ -1081,7 +1081,7 @@ mdcreate_swap(struct md_s *sc, struct md * Range check. Disallow negative sizes or any size less then the * size of a page. Then round to a page. */ - if (sc->mediasize == 0 || (sc->mediasize % PAGE_SIZE) != 0) + if (sc->mediasize <= 0 || (sc->mediasize % PAGE_SIZE) != 0) return (EDOM); /* @@ -1122,6 +1122,7 @@ xmdctlioctl(struct cdev *dev, u_long cmd struct md_ioctl *mdio; struct md_s *sc; int error, i; + unsigned sectsize; if (md_debug) printf("mdctlioctl(%s %lx %p %x %p)\n", @@ -1150,6 +1151,12 @@ xmdctlioctl(struct cdev *dev, u_long cmd default: return (EINVAL); } + if (mdio->md_sectorsize == 0) + sectsize = DEV_BSIZE; + else + sectsize = mdio->md_sectorsize; + if (sectsize > MAXPHYS || mdio->md_mediasize < sectsize) + return (EINVAL); if (mdio->md_options & MD_AUTOUNIT) sc = mdnew(-1, &error, mdio->md_type); else { @@ -1162,10 +1169,7 @@ xmdctlioctl(struct cdev *dev, u_long cmd if (mdio->md_options & MD_AUTOUNIT) mdio->md_unit = sc->unit; sc->mediasize = mdio->md_mediasize; - if (mdio->md_sectorsize == 0) - sc->sectorsize = DEV_BSIZE; - else - sc->sectorsize = mdio->md_sectorsize; + sc->sectorsize = sectsize; error = EDOOFUS; switch (sc->type) { case MD_MALLOC: