From patchwork Tue Jun 8 18:27:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 455819 Delivered-To: patch@linaro.org Received: by 2002:a02:735a:0:0:0:0:0 with SMTP id a26csp4021491jae; Tue, 8 Jun 2021 12:00:47 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyxSM9GtNvfQRxc6dATCewN2hevip0a9/nrfpeLUhRFMO8RM0KbGoaRUrGwRvJJ/MLwhMHI X-Received: by 2002:a17:907:779a:: with SMTP id ky26mr24757917ejc.293.1623178847097; Tue, 08 Jun 2021 12:00:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1623178847; cv=none; d=google.com; s=arc-20160816; b=EY6Rd3O05Ba+diZmPTljH+hu+TKxgc6sAAbR2kszK2sQKeCuHFJGl+V9SFs2vex+X2 WH/A9vy76MioHcdvZzaKzn+0yoDMSzmTkx/l2qezmxShFkJQHgzyyyBO5CpSB3T0fSgQ ouIS7621xZoL8aQc4MRUXd8aWuHOsP7VoFXO53pIZqdMO8admStdX7e/9j9H+753mqCX Tbj0IbIOFNFcQSgskF9jpBA4e9+SweIKdb1NZudR4edRnaCnEU5STl4naszkA0xo/N8E fD+QNwqjt6jZJXixpF3rHWsWq5QGGvcUW1ZceXjQfHCsSh/nP9kOOxqeUYwTrXD/dp2+ a1bg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=eRYLH3vL9g5YLNiYjhP+BznFRLAr0/onLnzwqkT2TN8=; b=xsdrRd3e/jlrO5TyBLSflrN6EHN7gvZe8iVmHQbTlflQYZ/ArxS8B9mxXMV140DXYX SVLPXoPdAS5+kmzAM/fLizZGBo24QHD3DrCDogFWsEqcfeVnhPZ1JLHMr449wc/ABkxU inGgHJ32GTsZ1DbWisnO5leuIIolQX9iCYLdKzgRNWftOzDpJy2mOCI4Bs5h+BEI9Usu PNNhcMAz8hE8IpT8ERtDihwMZr/5x2evhDDW0xJcNyf3fTHoHWRLQXnDfgA0AIWeJrQO uqVjOABpON7UJETaLXsCbuzpOef53vDU8vN93ZfFOn95qf3DMw9Tw2rG+yTRgyCXjN9t Z28w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=GXR66OP4; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id e3si288626ejm.412.2021.06.08.12.00.46; Tue, 08 Jun 2021 12:00:47 -0700 (PDT) Received-SPF: pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=GXR66OP4; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235780AbhFHTCg (ORCPT + 12 others); Tue, 8 Jun 2021 15:02:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:34178 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237411AbhFHTAe (ORCPT ); Tue, 8 Jun 2021 15:00:34 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B5E246144D; Tue, 8 Jun 2021 18:43:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1623177838; bh=1mgWPPmzluYStBBTbqzbxfqddWKznr5Zz86gLYSijOI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GXR66OP4ryXeSGRAHEZFUmtbVUMGjiZIY+HzY18zbsjyC2Nx7fOxOgDw6tk6UEft1 TGRO1MkIy1s30EPGg+fXd85tK6n0+kBSJxtidea4q+JcAIae2nX07jXZt5WmDbX04U AB/HVPjk50H9NqK71FNUXRnHxY+gw+jdD1JIBxQI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hangbin Liu , "Jason A. Donenfeld" , "David S. Miller" Subject: [PATCH 5.10 084/137] wireguard: selftests: make sure rp_filter is disabled on vethc Date: Tue, 8 Jun 2021 20:27:04 +0200 Message-Id: <20210608175945.210418021@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210608175942.377073879@linuxfoundation.org> References: <20210608175942.377073879@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jason A. Donenfeld commit f8873d11d4121aad35024f9379e431e0c83abead upstream. Some distros may enable strict rp_filter by default, which will prevent vethc from receiving the packets with an unrouteable reverse path address. Reported-by: Hangbin Liu Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/wireguard/netns.sh | 1 + 1 file changed, 1 insertion(+) --- a/tools/testing/selftests/wireguard/netns.sh +++ b/tools/testing/selftests/wireguard/netns.sh @@ -363,6 +363,7 @@ ip1 -6 rule add table main suppress_pref ip1 -4 route add default dev wg0 table 51820 ip1 -4 rule add not fwmark 51820 table 51820 ip1 -4 rule add table main suppress_prefixlength 0 +n1 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/vethc/rp_filter' # Flood the pings instead of sending just one, to trigger routing table reference counting bugs. n1 ping -W 1 -c 100 -f 192.168.99.7 n1 ping -W 1 -c 100 -f abab::1111