From owner-dev-commits-src-all@freebsd.org Tue Mar 23 22:12:29 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 963485BE359; Tue, 23 Mar 2021 22:12:29 +0000 (UTC) (envelope-from git@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4F4lwY3ty6z4Yx4; Tue, 23 Mar 2021 22:12:29 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 790339F1; Tue, 23 Mar 2021 22:12:29 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 12NMCTgn034284; Tue, 23 Mar 2021 22:12:29 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 12NMCTkv034283; Tue, 23 Mar 2021 22:12:29 GMT (envelope-from git) Date: Tue, 23 Mar 2021 22:12:29 GMT Message-Id: <202103232212.12NMCTkv034283@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: "Alexander V. Chernikov" Subject: git: a0308e48ec12 - main - Fix panic when destroying interface with ECMP routes. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: melifaro X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: a0308e48ec12ae37f525aa3c6d3c1a236fb55dcd Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Mar 2021 22:12:29 -0000 The branch main has been updated by melifaro: URL: https://cgit.FreeBSD.org/src/commit/?id=a0308e48ec12ae37f525aa3c6d3c1a236fb55dcd commit a0308e48ec12ae37f525aa3c6d3c1a236fb55dcd Author: Alexander V. Chernikov AuthorDate: 2021-03-23 22:00:04 +0000 Commit: Alexander V. Chernikov CommitDate: 2021-03-23 22:03:20 +0000 Fix panic when destroying interface with ECMP routes. Reported by: Zhenlei Huang PR: 254496 MFC after: immediately --- sys/net/route/route_ctl.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/sys/net/route/route_ctl.c b/sys/net/route/route_ctl.c index d9fd1aa18c92..d3a35018ae66 100644 --- a/sys/net/route/route_ctl.c +++ b/sys/net/route/route_ctl.c @@ -130,13 +130,22 @@ vnet_rtzone_destroy() static void destroy_rtentry(struct rtentry *rt) { + struct nhop_object *nh = rt->rt_nhop; /* * At this moment rnh, nh_control may be already freed. * nhop interface may have been migrated to a different vnet. * Use vnet stored in the nexthop to delete the entry. */ - CURVNET_SET(nhop_get_vnet(rt->rt_nhop)); +#ifdef ROUTE_MPATH + if (NH_IS_NHGRP(nh)) { + struct weightened_nhop *wn; + uint32_t num_nhops; + wn = nhgrp_get_nhops((struct nhgrp_object *)nh, &num_nhops); + nh = wn[0].nh; + } +#endif + CURVNET_SET(nhop_get_vnet(nh)); /* Unreference nexthop */ nhop_free_any(rt->rt_nhop);