From owner-svn-src-all@freebsd.org Sun Mar 20 18:56:04 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4BCA8AD76ED; Sun, 20 Mar 2016 18:56:04 +0000 (UTC) (envelope-from mav@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 mx1.freebsd.org (Postfix) with ESMTPS id 1B8AD1FC; Sun, 20 Mar 2016 18:56:04 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u2KIu3i3033525; Sun, 20 Mar 2016 18:56:03 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u2KIu30r033524; Sun, 20 Mar 2016 18:56:03 GMT (envelope-from mav@FreeBSD.org) Message-Id: <201603201856.u2KIu30r033524@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Sun, 20 Mar 2016 18:56:03 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r297071 - stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Mar 2016 18:56:04 -0000 Author: mav Date: Sun Mar 20 18:56:03 2016 New Revision: 297071 URL: https://svnweb.freebsd.org/changeset/base/297071 Log: MFC r271781i (by will): bpobj_iterate_impl(): Close a refcount leak iterating on a sublist. If bpobj_space() returned non-zero here, the sublist would have been left open, along with the bonus buffer hold it requires. This call does not invoke any calls to bpobj_close() itself. This bug doesn't have any known vector, but was found on inspection. MFC after: 1 week Sponsored by: Spectra Logic Affects: All ZFS versions starting 21 May 2010 (illumos cde58dbc) MFSpectraBSD: r1050998 on 2014/03/26 Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/bpobj.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/bpobj.c ============================================================================== --- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/bpobj.c Sun Mar 20 18:31:30 2016 (r297070) +++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/bpobj.c Sun Mar 20 18:56:03 2016 (r297071) @@ -300,8 +300,10 @@ bpobj_iterate_impl(bpobj_t *bpo, bpobj_i if (free) { err = bpobj_space(&sublist, &used_before, &comp_before, &uncomp_before); - if (err) + if (err != 0) { + bpobj_close(&sublist); break; + } } err = bpobj_iterate_impl(&sublist, func, arg, tx, free); if (free) {