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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDBE3C433EF for ; Tue, 7 Jun 2022 22:23:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1380695AbiFGWXK (ORCPT ); Tue, 7 Jun 2022 18:23:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1385395AbiFGWVg (ORCPT ); Tue, 7 Jun 2022 18:21:36 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D87B25696B; Tue, 7 Jun 2022 12:21:26 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 74E2DB8233E; Tue, 7 Jun 2022 19:21:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA788C385A5; Tue, 7 Jun 2022 19:21:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1654629683; bh=a6TL4JGMCf1l+ghTXObmrd74SYUyO4vsE8A7pjANyUU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vH4HMBROnKa3KtHPzjtwkwS2/ZV5jYqF1+ny9o+4in0ESgy98KP+WasEuq4Y2ov5f CzvoZuU2zso08QtdvR20eSYpGo0BgwvZV3eVFUdkRZinI2Is2INe/sd5WnroMporya OHz+I2JGjpcPc4jtWX4irNdJ5U2eirAExc2dQhU8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Shuah Khan , =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= Subject: [PATCH 5.18 780/879] selftests/landlock: Add tests for unknown access rights Date: Tue, 7 Jun 2022 19:04:58 +0200 Message-Id: <20220607165025.513081951@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220607165002.659942637@linuxfoundation.org> References: <20220607165002.659942637@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Mickaël Salaün commit c56b3bf566da5a0dd3b58ad97a614b0928b06ebf upstream. Make sure that trying to use unknown access rights returns an error. Cc: Shuah Khan Link: https://lore.kernel.org/r/20220506160820.524344-5-mic@digikod.net Cc: stable@vger.kernel.org Signed-off-by: Mickaël Salaün Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/landlock/fs_test.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) --- a/tools/testing/selftests/landlock/fs_test.c +++ b/tools/testing/selftests/landlock/fs_test.c @@ -448,6 +448,22 @@ TEST_F_FORK(layout1, file_access_rights) ASSERT_EQ(0, close(path_beneath.parent_fd)); } +TEST_F_FORK(layout1, unknown_access_rights) +{ + __u64 access_mask; + + for (access_mask = 1ULL << 63; access_mask != ACCESS_LAST; + access_mask >>= 1) { + struct landlock_ruleset_attr ruleset_attr = { + .handled_access_fs = access_mask, + }; + + ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr, + sizeof(ruleset_attr), 0)); + ASSERT_EQ(EINVAL, errno); + } +} + static void add_path_beneath(struct __test_metadata *const _metadata, const int ruleset_fd, const __u64 allowed_access, const char *const path)