From patchwork Wed Oct 7 00:23:47 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cong Wang X-Patchwork-Id: 527066 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id E356414029C for ; Wed, 7 Oct 2015 11:24:18 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=pnf/klFW; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753250AbbJGAYO (ORCPT ); Tue, 6 Oct 2015 20:24:14 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:35761 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752960AbbJGAYN (ORCPT ); Tue, 6 Oct 2015 20:24:13 -0400 Received: by pacfv12 with SMTP id fv12so2209005pac.2 for ; Tue, 06 Oct 2015 17:24:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=9/lYTGyVYtyOh7p8b040AZyuVg5GbENLkqafOp0u2Mw=; b=pnf/klFWeW0YOAycsG8q1SuqoI1NSZqxVELH8zP+Navi6npSemUeZw250scTTaSvhO iNq49+NIYmEXQHqRO5uFuMMxiJtEs6fVY1Hv6PjbKligyAgvuPxI5IPy9SQc3Wu9iN9c qw0bIL7IyYtE7HOBOYsqQTcnVlt+sFM7FfPT5mox4zwVssL4XHHlsFtoFSEiBS7CW84o QlZiJrZoSK6IXqc0ATxd/q2dCBLajgCuHoHzBh/yyNGH0c9RIGAXgikv3bWCOXyHiG+R Z9UdmN7P5vxpcUApnS+Rwd6BoLSpOeggu9ANoPijr4+c2u/kW+GsA9duU6ZPyYS4NsBv +OcQ== X-Received: by 10.66.102.7 with SMTP id fk7mr50361124pab.119.1444177453139; Tue, 06 Oct 2015 17:24:13 -0700 (PDT) Received: from localhost.net ([8.25.197.27]) by smtp.gmail.com with ESMTPSA id fe8sm35961820pab.40.2015.10.06.17.24.12 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 06 Oct 2015 17:24:12 -0700 (PDT) From: Cong Wang To: netdev@vger.kernel.org Cc: Cong Wang , Eric Dumazet , Jamal Hadi Salim , Cong Wang Subject: [Patch net] act_mirred: clear sender cpu before sending to tx Date: Tue, 6 Oct 2015 17:23:47 -0700 Message-Id: <1444177427-5603-1-git-send-email-xiyou.wangcong@gmail.com> X-Mailer: git-send-email 1.8.3.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Similar to commit c29390c6dfee ("xps: must clear sender_cpu before forwarding") the skb->sender_cpu needs to be cleared when moving from Rx Tx, otherwise kernel could crash. Cc: Eric Dumazet Cc: Jamal Hadi Salim Signed-off-by: Cong Wang Signed-off-by: Cong Wang Acked-by: Eric Dumazet --- net/sched/act_mirred.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 2efaf4e..32fcdec 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -179,6 +179,7 @@ static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a, skb2->skb_iif = skb->dev->ifindex; skb2->dev = dev; + skb_sender_cpu_clear(skb2); err = dev_queue_xmit(skb2); if (err) {