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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 6E339C31E50 for ; Mon, 17 Jun 2019 14:14:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D6FE206B7 for ; Mon, 17 Jun 2019 14:14:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727950AbfFQOOT (ORCPT ); Mon, 17 Jun 2019 10:14:19 -0400 Received: from Chamillionaire.breakpoint.cc ([193.142.43.52]:44740 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725906AbfFQOOT (ORCPT ); Mon, 17 Jun 2019 10:14:19 -0400 Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.89) (envelope-from ) id 1hcsOk-0005vT-Ik; Mon, 17 Jun 2019 16:14:15 +0200 From: Florian Westphal To: Cc: tariqt@mellanox.com, ranro@mellanox.com, maorg@mellanox.com, edumazet@google.com, Florian Westphal Subject: [PATCH net-next 2/2] selftests: rtnetlink: add addresses with fixed life time Date: Mon, 17 Jun 2019 16:02:28 +0200 Message-Id: <20190617140228.12523-3-fw@strlen.de> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190617140228.12523-1-fw@strlen.de> References: <20190617140228.12523-1-fw@strlen.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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 --- 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 b25c9fe019d2..ed606a2e3865 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -249,6 +249,26 @@ 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 @@ -1140,6 +1160,7 @@ kci_test_rtnl() kci_test_polrouting kci_test_route_get + kci_test_addrlft kci_test_tc kci_test_gre kci_test_gretap -- 2.21.0