From owner-svn-src-all@freebsd.org Fri Feb 1 09:05:42 2019 Return-Path: Delivered-To: svn-src-all@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 8F19014C36DF; Fri, 1 Feb 2019 09:05:42 +0000 (UTC) (envelope-from hselasky@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 337BC82753; Fri, 1 Feb 2019 09:05:42 +0000 (UTC) (envelope-from hselasky@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 285261CC56; Fri, 1 Feb 2019 09:05:42 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x1195g16011213; Fri, 1 Feb 2019 09:05:42 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x1195gAb011212; Fri, 1 Feb 2019 09:05:42 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201902010905.x1195gAb011212@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Fri, 1 Feb 2019 09:05:42 +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: r343647 - stable/12/sys/netinet6 X-SVN-Group: stable-12 X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: stable/12/sys/netinet6 X-SVN-Commit-Revision: 343647 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 337BC82753 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.87 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; NEURAL_HAM_SHORT(-0.87)[-0.874,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-0.999,0] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 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: Fri, 01 Feb 2019 09:05:42 -0000 Author: hselasky Date: Fri Feb 1 09:05:41 2019 New Revision: 343647 URL: https://svnweb.freebsd.org/changeset/base/343647 Log: MFC r343392: Fix duplicate acquiring of refcount when joining IPv6 multicast groups. This was observed by starting and stopping rpcbind(8) multiple times. PR: 233535 Differential Revision: https://reviews.freebsd.org/D18887 Reviewed by: bz (net) Tested by: ae Sponsored by: Mellanox Technologies Modified: stable/12/sys/netinet6/in6_mcast.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netinet6/in6_mcast.c ============================================================================== --- stable/12/sys/netinet6/in6_mcast.c Fri Feb 1 08:10:26 2019 (r343646) +++ stable/12/sys/netinet6/in6_mcast.c Fri Feb 1 09:05:41 2019 (r343647) @@ -2178,7 +2178,10 @@ in6p_join_group(struct inpcb *inp, struct sockopt *sop IN6_MULTI_UNLOCK(); goto out_im6o_free; } - in6m_acquire(inm); + /* + * NOTE: Refcount from in6_joingroup_locked() + * is protecting membership. + */ imo->im6o_membership[idx] = inm; } else { CTR1(KTR_MLD, "%s: merge inm state", __func__);