From owner-svn-src-stable-9@FreeBSD.ORG Thu Nov 6 16:31:49 2014 Return-Path: Delivered-To: svn-src-stable-9@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B5B7362B; Thu, 6 Nov 2014 16:31:49 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::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 A1B9C765; Thu, 6 Nov 2014 16:31:49 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id sA6GVnTH041002; Thu, 6 Nov 2014 16:31:49 GMT (envelope-from ae@FreeBSD.org) Received: (from ae@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id sA6GVnVB041001; Thu, 6 Nov 2014 16:31:49 GMT (envelope-from ae@FreeBSD.org) Message-Id: <201411061631.sA6GVnVB041001@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: ae set sender to ae@FreeBSD.org using -f From: "Andrey V. Elsukov" Date: Thu, 6 Nov 2014 16:31:49 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r274181 - stable/9/sys/netinet6 X-SVN-Group: stable-9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-9@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for only the 9-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Nov 2014 16:31:49 -0000 Author: ae Date: Thu Nov 6 16:31:48 2014 New Revision: 274181 URL: https://svnweb.freebsd.org/changeset/base/274181 Log: MFC r273855: Fix mbuf leak in IPv6 multicast code. When multicast capable interface goes away, it leaves multicast groups, this leads to generate MLD reports, but MLD code does deffered send and MLD reports are queued in the in6_multi's in6m_scq ifq. The problem is that in6_multi structures are freed when interface leaves multicast groups and thread that does deffered send will not take these queued packets. PR: 194577 MFC r273857: Move ifq drain into in6m_purge(). Suggested by: bms Sponsored by: Yandex LLC Modified: stable/9/sys/netinet6/in6_mcast.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/netinet6/in6_mcast.c ============================================================================== --- stable/9/sys/netinet6/in6_mcast.c Thu Nov 6 16:19:21 2014 (r274180) +++ stable/9/sys/netinet6/in6_mcast.c Thu Nov 6 16:31:48 2014 (r274181) @@ -1075,6 +1075,8 @@ in6m_purge(struct in6_multi *inm) free(ims, M_IP6MSOURCE); inm->in6m_nsrc--; } + /* Free state-change requests that might be queued. */ + _IF_DRAIN(&inm->in6m_scq); } /*