From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0373DC28CC5 for ; Sat, 8 Jun 2019 11:43:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C74C1214AF for ; Sat, 8 Jun 2019 11:43:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559994180; bh=FDBsYQdJb38TfUeN+jtGYnt5nQrbtFe0wqYBGWDoFaA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hfnIzKu3VGL4U9oiJy9AXujzVukwlN2NiWH0yEl+gjHDfDrAznkel5YvFxr7JAH5Z iQZocoHxFwDCFDrCqS7IWUzmXu13+qZ+qUa0Bql+6ns73CiYl8RDvd60mqOVPcMdpw t7vbTvKPtWz7Bn2UwRjoXnKqLfGZlzQmPtSjomzM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728614AbfFHLnA (ORCPT ); Sat, 8 Jun 2019 07:43:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:60020 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727947AbfFHLmo (ORCPT ); Sat, 8 Jun 2019 07:42:44 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 900CF21530; Sat, 8 Jun 2019 11:42:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559994163; bh=FDBsYQdJb38TfUeN+jtGYnt5nQrbtFe0wqYBGWDoFaA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DJIOto3GfpyE4mqbxsDfXMzmJJfGn1SyBw2k8NGQNe0wvTtani2K4SmgmKbXw+sgO nF0Gi0VKQKTqpw0l/kjVgNqpzZBua4eIdRBtJ+d0vCrbU834p/0f2DCI3+sk9eoV6P gOBQDlUwiuOigvghuHU0Mxq5Su/Yk0pZOL/pXq+M= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jagdish Motwani , Pablo Neira Ayuso , Sasha Levin , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 05/49] netfilter: nf_queue: fix reinject verdict handling Date: Sat, 8 Jun 2019 07:41:46 -0400 Message-Id: <20190608114232.8731-5-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190608114232.8731-1-sashal@kernel.org> References: <20190608114232.8731-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jagdish Motwani [ Upstream commit 946c0d8e6ed43dae6527e878d0077c1e11015db0 ] This patch fixes netfilter hook traversal when there are more than 1 hooks returning NF_QUEUE verdict. When the first queue reinjects the packet, 'nf_reinject' starts traversing hooks with a proper hook_index. However, if it again receives a NF_QUEUE verdict (by some other netfilter hook), it queues the packet with a wrong hook_index. So, when the second queue reinjects the packet, it re-executes hooks in between. Fixes: 960632ece694 ("netfilter: convert hook list to an array") Signed-off-by: Jagdish Motwani Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/nf_queue.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c index d67a96a25a68..7569ba00e732 100644 --- a/net/netfilter/nf_queue.c +++ b/net/netfilter/nf_queue.c @@ -238,6 +238,7 @@ static unsigned int nf_iterate(struct sk_buff *skb, repeat: verdict = nf_hook_entry_hookfn(hook, skb, state); if (verdict != NF_ACCEPT) { + *index = i; if (verdict != NF_REPEAT) return verdict; goto repeat; -- 2.20.1