From owner-svn-src-head@freebsd.org Sun Feb 10 23:28:57 2019 Return-Path: Delivered-To: svn-src-head@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 D29BB14E112A; Sun, 10 Feb 2019 23:28:56 +0000 (UTC) (envelope-from oshogbo@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 754757176E; Sun, 10 Feb 2019 23:28:56 +0000 (UTC) (envelope-from oshogbo@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 68B7A1F74C; Sun, 10 Feb 2019 23:28:56 +0000 (UTC) (envelope-from oshogbo@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x1ANSu0G021767; Sun, 10 Feb 2019 23:28:56 GMT (envelope-from oshogbo@FreeBSD.org) Received: (from oshogbo@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x1ANStvD021763; Sun, 10 Feb 2019 23:28:55 GMT (envelope-from oshogbo@FreeBSD.org) Message-Id: <201902102328.x1ANStvD021763@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: oshogbo set sender to oshogbo@FreeBSD.org using -f From: Mariusz Zaborski Date: Sun, 10 Feb 2019 23:28:55 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r343986 - in head: lib/libnv/tests sys/contrib/libnv X-SVN-Group: head X-SVN-Commit-Author: oshogbo X-SVN-Commit-Paths: in head: lib/libnv/tests sys/contrib/libnv X-SVN-Commit-Revision: 343986 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 754757176E X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.996,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.95)[-0.955,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Feb 2019 23:28:57 -0000 Author: oshogbo Date: Sun Feb 10 23:28:55 2019 New Revision: 343986 URL: https://svnweb.freebsd.org/changeset/base/343986 Log: libnv: fix memory leaks nvpair_create_stringv: free the temporary string; this fix affects nvlist_add_stringf() and nvlist_add_stringv(). nvpair_remove_nvlist_array (NV_TYPE_NVLIST_ARRAY case): free the chain of nvpairs (as resetting it prevents nvlist_destroy() from freeing it). Note: freeing the chain in nvlist_destroy() is not sufficient, because it would still leak through nvlist_take_nvlist_array(). This affects all nvlist_*_nvlist_array() use Submitted by: Mindaugas Rasiukevicius Reported by: clang/gcc ASAN MFC after: 2 weeks Modified: head/lib/libnv/tests/nvlist_send_recv_test.c head/sys/contrib/libnv/nv_impl.h head/sys/contrib/libnv/nvlist.c head/sys/contrib/libnv/nvpair.c Modified: head/lib/libnv/tests/nvlist_send_recv_test.c ============================================================================== --- head/lib/libnv/tests/nvlist_send_recv_test.c Sun Feb 10 23:07:46 2019 (r343985) +++ head/lib/libnv/tests/nvlist_send_recv_test.c Sun Feb 10 23:28:55 2019 (r343986) @@ -304,6 +304,8 @@ parent(int sock) name = nvlist_next(nvl, &type, &cookie); CHECK(name == NULL); + + nvlist_destroy(nvl); } static void Modified: head/sys/contrib/libnv/nv_impl.h ============================================================================== --- head/sys/contrib/libnv/nv_impl.h Sun Feb 10 23:07:46 2019 (r343985) +++ head/sys/contrib/libnv/nv_impl.h Sun Feb 10 23:28:55 2019 (r343986) @@ -103,6 +103,7 @@ bool nvlist_move_nvpair(nvlist_t *nvl, nvpair_t *nvp); void nvlist_set_parent(nvlist_t *nvl, nvpair_t *parent); void nvlist_set_array_next(nvlist_t *nvl, nvpair_t *ele); +nvpair_t *nvlist_get_array_next_nvpair(nvlist_t *nvl); const nvpair_t *nvlist_get_nvpair(const nvlist_t *nvl, const char *name); Modified: head/sys/contrib/libnv/nvlist.c ============================================================================== --- head/sys/contrib/libnv/nvlist.c Sun Feb 10 23:07:46 2019 (r343985) +++ head/sys/contrib/libnv/nvlist.c Sun Feb 10 23:28:55 2019 (r343986) @@ -247,6 +247,15 @@ nvlist_set_array_next(nvlist_t *nvl, nvpair_t *ele) nvl->nvl_array_next = ele; } +nvpair_t * +nvlist_get_array_next_nvpair(nvlist_t *nvl) +{ + + NVLIST_ASSERT(nvl); + + return (nvl->nvl_array_next); +} + bool nvlist_in_array(const nvlist_t *nvl) { Modified: head/sys/contrib/libnv/nvpair.c ============================================================================== --- head/sys/contrib/libnv/nvpair.c Sun Feb 10 23:07:46 2019 (r343985) +++ head/sys/contrib/libnv/nvpair.c Sun Feb 10 23:28:55 2019 (r343986) @@ -229,8 +229,16 @@ nvpair_remove_nvlist_array(nvpair_t *nvp) nvlarray = __DECONST(nvlist_t **, nvpair_get_nvlist_array(nvp, &count)); for (i = 0; i < count; i++) { - nvlist_set_array_next(nvlarray[i], NULL); - nvlist_set_parent(nvlarray[i], NULL); + nvlist_t *nvl; + nvpair_t *nnvp; + + nvl = nvlarray[i]; + nnvp = nvlist_get_array_next_nvpair(nvl); + if (nnvp != NULL) { + nvpair_free_structure(nnvp); + } + nvlist_set_array_next(nvl, NULL); + nvlist_set_parent(nvl, NULL); } } @@ -1193,8 +1201,7 @@ nvpair_create_stringv(const char *name, const char *va if (len < 0) return (NULL); nvp = nvpair_create_string(name, str); - if (nvp == NULL) - nv_free(str); + nv_free(str); return (nvp); }