From owner-svn-src-all@freebsd.org Fri May 24 08:40:38 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 8C61315A36E6; Fri, 24 May 2019 08:40:38 +0000 (UTC) (envelope-from ae@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 2F97582B78; Fri, 24 May 2019 08:40:38 +0000 (UTC) (envelope-from ae@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 1DCC81A43A; Fri, 24 May 2019 08:40:38 +0000 (UTC) (envelope-from ae@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x4O8ebme022194; Fri, 24 May 2019 08:40:38 GMT (envelope-from ae@FreeBSD.org) Received: (from ae@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x4O8ebk4022176; Fri, 24 May 2019 08:40:37 GMT (envelope-from ae@FreeBSD.org) Message-Id: <201905240840.x4O8ebk4022176@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: ae set sender to ae@FreeBSD.org using -f From: "Andrey V. Elsukov" Date: Fri, 24 May 2019 08:40:37 +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: r348232 - stable/12/sys/netinet6 X-SVN-Group: stable-12 X-SVN-Commit-Author: ae X-SVN-Commit-Paths: stable/12/sys/netinet6 X-SVN-Commit-Revision: 348232 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 2F97582B78 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)[-0.997,0]; NEURAL_HAM_SHORT(-0.95)[-0.952,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] 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, 24 May 2019 08:40:38 -0000 Author: ae Date: Fri May 24 08:40:37 2019 New Revision: 348232 URL: https://svnweb.freebsd.org/changeset/base/348232 Log: MFC r347383: In mld_v2_cancel_link_timers() check number of references and disconnect inm before releasing the last reference. This fixes possible panics and assertion. PR: 237329 Reviewed by: mmacy Modified: stable/12/sys/netinet6/mld6.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netinet6/mld6.c ============================================================================== --- stable/12/sys/netinet6/mld6.c Fri May 24 06:49:47 2019 (r348231) +++ stable/12/sys/netinet6/mld6.c Fri May 24 08:40:37 2019 (r348232) @@ -1704,6 +1704,8 @@ mld_v2_cancel_link_timers(struct mld_ifsoftc *mli) * version, we need to release the final * reference held for issuing the INCLUDE {}. */ + if (inm->in6m_refcount == 1) + in6m_disconnect_locked(&inmh, inm); in6m_rele_locked(&inmh, inm); /* FALLTHROUGH */ case MLD_G_QUERY_PENDING_MEMBER: