From patchwork Tue Jan 7 20:55:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 234326 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 36605C282DD for ; Tue, 7 Jan 2020 21:15:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 06A012080A for ; Tue, 7 Jan 2020 21:15:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578431745; bh=MM79NCL25bbH0nHMP9HiLQXuyGVNFpLsvMEYvLn9qm0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=PUAvEjZe1M3uGSR5MsWEexKfaqBH0Y68dXt3fopqfATwCFOscgrL2/YznSzQ8FRg6 n/0oQTPYnP24MzEji7SPbl2TLYVVTLdXmWdh7lpQYs/rs6nXAmzXEEPabUC4ySOWCb 2NXSVrWFn5huFQRFnq73T097ip5OrjGcqiYtgJvs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729574AbgAGVHq (ORCPT ); Tue, 7 Jan 2020 16:07:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:59124 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729572AbgAGVHp (ORCPT ); Tue, 7 Jan 2020 16:07:45 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C27462077B; Tue, 7 Jan 2020 21:07:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578431265; bh=MM79NCL25bbH0nHMP9HiLQXuyGVNFpLsvMEYvLn9qm0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Bm+NgRDDRj4IGBFqIkAbe4ua6MHJF5YJHa9AwmqAy0RVB2aTzPoimsKQJ1K4+vocz +AeNRimWgxDH0yn+Vyrp3OTYe8cJFPGA7+jys9aCyUUmYZd0QgD15JUB4lrdm3tMOx LCUQda2img5Q655uMI47RAGhxNVV3Rbv2VnRnhgk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Florian Westphal , "David S. Miller" , Sasha Levin Subject: [PATCH 4.19 101/115] selftests: rtnetlink: add addresses with fixed life time Date: Tue, 7 Jan 2020 21:55:11 +0100 Message-Id: <20200107205308.139779209@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200107205240.283674026@linuxfoundation.org> References: <20200107205240.283674026@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Florian Westphal [ Upstream commit 3cfa148826e3c666da1cc2a43fbe8689e2650636 ] This exercises kernel code path that deal with addresses that have a limited lifetime. Without previous fix, this triggers following crash on net-next: BUG: KASAN: null-ptr-deref in check_lifetime+0x403/0x670 Read of size 8 at addr 0000000000000010 by task kworker [..] Signed-off-by: Florian Westphal Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- tools/testing/selftests/net/rtnetlink.sh | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh index e101af52d1d6..ff665de788ef 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -234,6 +234,26 @@ kci_test_route_get() echo "PASS: route get" } +kci_test_addrlft() +{ + for i in $(seq 10 100) ;do + lft=$(((RANDOM%3) + 1)) + ip addr add 10.23.11.$i/32 dev "$devdummy" preferred_lft $lft valid_lft $((lft+1)) + check_err $? + done + + sleep 5 + + ip addr show dev "$devdummy" | grep "10.23.11." + if [ $? -eq 0 ]; then + echo "FAIL: preferred_lft addresses remaining" + check_err 1 + return + fi + + echo "PASS: preferred_lft addresses have expired" +} + kci_test_addrlabel() { ret=0 @@ -965,6 +985,7 @@ kci_test_rtnl() kci_test_polrouting kci_test_route_get + kci_test_addrlft kci_test_tc kci_test_gre kci_test_gretap