Date: Wed, 4 Feb 2015 00:51:50 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r278177 - stable/10/cddl/contrib/opensolaris/lib/libzfs/common Message-ID: <201502040051.t140poOj084178@svn.freebsd.org>
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Author: delphij Date: Wed Feb 4 00:51:50 2015 New Revision: 278177 URL: https://svnweb.freebsd.org/changeset/base/278177 Log: MFC r277433: MFV r277432: Plug various memory leaks in libzfs import implementation. Illumos issue: 5518 Memory leaks in libzfs import implementation Modified: stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c Directory Properties: stable/10/ (props changed) Modified: stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c ============================================================================== --- stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c Wed Feb 4 00:45:28 2015 (r278176) +++ stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c Wed Feb 4 00:51:50 2015 (r278177) @@ -18,10 +18,11 @@ * * CDDL HEADER END */ + /* + * Copyright 2015 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2013 by Delphix. All rights reserved. - * Copyright 2014 Nexenta Systems, Inc. All rights reserved. */ /* @@ -198,8 +199,10 @@ fix_paths(nvlist_t *nv, name_entry_t *na if ((devid = get_devid(best->ne_name)) == NULL) { (void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID); } else { - if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0) + if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0) { + devid_str_free(devid); return (-1); + } devid_str_free(devid); } @@ -665,8 +668,10 @@ get_configs(libzfs_handle_t *hdl, pool_l nvlist_add_uint64(holey, ZPOOL_CONFIG_ID, c) != 0 || nvlist_add_uint64(holey, - ZPOOL_CONFIG_GUID, 0ULL) != 0) + ZPOOL_CONFIG_GUID, 0ULL) != 0) { + nvlist_free(holey); goto nomem; + } child[c] = holey; } } @@ -1118,8 +1123,10 @@ zpool_clear_label(int fd) for (l = 0; l < VDEV_LABELS; l++) { if (pwrite64(fd, label, sizeof (vdev_label_t), - label_offset(size, l)) != sizeof (vdev_label_t)) + label_offset(size, l)) != sizeof (vdev_label_t)) { + free(label); return (-1); + } } free(label); @@ -1137,7 +1144,6 @@ static nvlist_t * zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg) { int i, dirs = iarg->paths; - DIR *dirp = NULL; struct dirent64 *dp; char path[MAXPATHLEN]; char *end, **dir = iarg->path; @@ -1167,6 +1173,8 @@ zpool_find_import_impl(libzfs_handle_t * tpool_t *t; char *rdsk; int dfd; + boolean_t config_failed = B_FALSE; + DIR *dirp; /* use realpath to normalize the path */ if (realpath(dir[i], path) == 0) { @@ -1191,6 +1199,8 @@ zpool_find_import_impl(libzfs_handle_t * if ((dfd = open64(rdsk, O_RDONLY)) < 0 || (dirp = fdopendir(dfd)) == NULL) { + if (dfd >= 0) + (void) close(dfd); zfs_error_aux(hdl, strerror(errno)); (void) zfs_error_fmt(hdl, EZFS_BADPATH, dgettext(TEXT_DOMAIN, "cannot open '%s'"), @@ -1272,7 +1282,7 @@ skipdir: cookie = NULL; while ((slice = avl_destroy_nodes(&slice_cache, &cookie)) != NULL) { - if (slice->rn_config != NULL) { + if (slice->rn_config != NULL && !config_failed) { nvlist_t *config = slice->rn_config; boolean_t matched = B_TRUE; @@ -1293,13 +1303,16 @@ skipdir: } if (!matched) { nvlist_free(config); - config = NULL; - continue; + } else { + /* + * use the non-raw path for the config + */ + (void) strlcpy(end, slice->rn_name, + pathleft); + if (add_config(hdl, &pools, path, + config) != 0) + config_failed = B_TRUE; } - /* use the non-raw path for the config */ - (void) strlcpy(end, slice->rn_name, pathleft); - if (add_config(hdl, &pools, path, config) != 0) - goto error; } free(slice->rn_name); free(slice); @@ -1307,7 +1320,9 @@ skipdir: avl_destroy(&slice_cache); (void) closedir(dirp); - dirp = NULL; + + if (config_failed) + goto error; } ret = get_configs(hdl, &pools, iarg->can_be_active); @@ -1330,14 +1345,10 @@ error: for (ne = pools.names; ne != NULL; ne = nenext) { nenext = ne->ne_next; - if (ne->ne_name) - free(ne->ne_name); + free(ne->ne_name); free(ne); } - if (dirp) - (void) closedir(dirp); - return (ret); } @@ -1695,9 +1706,9 @@ zpool_in_use(libzfs_handle_t *hdl, int f cb.cb_type = ZPOOL_CONFIG_SPARES; if (zpool_iter(hdl, find_aux, &cb) == 1) { name = (char *)zpool_get_name(cb.cb_zhp); - ret = TRUE; + ret = B_TRUE; } else { - ret = FALSE; + ret = B_FALSE; } break; @@ -1711,9 +1722,9 @@ zpool_in_use(libzfs_handle_t *hdl, int f cb.cb_type = ZPOOL_CONFIG_L2CACHE; if (zpool_iter(hdl, find_aux, &cb) == 1) { name = (char *)zpool_get_name(cb.cb_zhp); - ret = TRUE; + ret = B_TRUE; } else { - ret = FALSE; + ret = B_FALSE; } break; Modified: stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c ============================================================================== --- stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c Wed Feb 4 00:45:28 2015 (r278176) +++ stable/10/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c Wed Feb 4 00:51:50 2015 (r278177) @@ -20,8 +20,8 @@ */ /* + * Copyright 2015 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright 2011 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2011, 2014 by Delphix. All rights reserved. * Copyright (c) 2013, Joyent, Inc. All rights reserved. */ @@ -1715,7 +1715,7 @@ zpool_import_props(libzfs_handle_t *hdl, thename = origname; } - if (props) { + if (props != NULL) { uint64_t version; prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE }; @@ -1723,12 +1723,13 @@ zpool_import_props(libzfs_handle_t *hdl, &version) == 0); if ((props = zpool_valid_proplist(hdl, origname, - props, version, flags, errbuf)) == NULL) { + props, version, flags, errbuf)) == NULL) return (-1); - } else if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { + if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { nvlist_free(props); return (-1); } + nvlist_free(props); } (void) strlcpy(zc.zc_name, thename, sizeof (zc.zc_name)); @@ -1737,11 +1738,11 @@ zpool_import_props(libzfs_handle_t *hdl, &zc.zc_guid) == 0); if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) { - nvlist_free(props); + zcmd_free_nvlists(&zc); return (-1); } if (zcmd_alloc_dst_nvlist(hdl, &zc, zc.zc_nvlist_conf_size * 2) != 0) { - nvlist_free(props); + zcmd_free_nvlists(&zc); return (-1); } @@ -1757,6 +1758,9 @@ zpool_import_props(libzfs_handle_t *hdl, error = errno; (void) zcmd_read_dst_nvlist(hdl, &zc, &nv); + + zcmd_free_nvlists(&zc); + zpool_get_rewind_policy(config, &policy); if (error) { @@ -1862,9 +1866,6 @@ zpool_import_props(libzfs_handle_t *hdl, return (0); } - zcmd_free_nvlists(&zc); - nvlist_free(props); - return (ret); } @@ -3332,8 +3333,10 @@ devid_to_path(char *devid_str) if (ret != 0) return (NULL); - if ((path = strdup(list[0].devname)) == NULL) - return (NULL); + /* + * In a case the strdup() fails, we will just return NULL below. + */ + path = strdup(list[0].devname); devid_free_nmlist(list);
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