From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Li Shuang , Hangbin Liu , Cong Wang , "David S. Miller" Subject: [PATCH 4.17 40/42] cls_matchall: fix tcf_unbind_filter missing Date: Tue, 21 Aug 2018 08:21:12 +0200 Message-Id: <20180821055019.583157588@linuxfoundation.org> In-Reply-To: <20180821055017.596264829@linuxfoundation.org> References: <20180821055017.596264829@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hangbin Liu [ Upstream commit a51c76b4dfb30496dc65396a957ef0f06af7fb22 ] Fix tcf_unbind_filter missing in cls_matchall as this will trigger WARN_ON() in cbq_destroy_class(). Fixes: fd62d9f5c575f ("net/sched: matchall: Fix configuration race") Reported-by: Li Shuang Signed-off-by: Hangbin Liu Acked-by: Cong Wang Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/sched/cls_matchall.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/sched/cls_matchall.c +++ b/net/sched/cls_matchall.c @@ -122,6 +122,8 @@ static void mall_destroy(struct tcf_prot if (!head) return; + tcf_unbind_filter(tp, &head->res); + if (!tc_skip_hw(head->flags)) mall_destroy_hw_filter(tp, head, (unsigned long) head, extack);