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 BE4D8C4332F for ; Wed, 1 Nov 2023 19:47:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347381AbjKATrk (ORCPT ); Wed, 1 Nov 2023 15:47:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347385AbjKATrh (ORCPT ); Wed, 1 Nov 2023 15:47:37 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B255C9F for ; Wed, 1 Nov 2023 12:47:33 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50310C433CB; Wed, 1 Nov 2023 19:47:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1698868053; bh=pVWYJ4AWpDrvF4xm6K4BY3zlkZDG17ly1/LgwyputqE=; h=Date:To:From:Subject:From; b=uLGkJV53qAdBBLkgP2YBSgRV4QUKcRzx7KiROckXV4IZpgrqLLtIof0+pm7w/Jv8a 0igDLcOq7Mw05AGIH2r6C8CZw/W7fB7lnGcu9DqHGrmT/b3BUnayHHMH+Ej4XHVM/I mURnDSskf+W41URJBhfcqtLf+SkinZAiM2W9faWw= Date: Wed, 01 Nov 2023 12:47:32 -0700 To: mm-commits@vger.kernel.org, shuah@kernel.org, itaru.kitayama@linux.dev, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-nonmm-stable] lower-the-ptrace-permissions-so-that-the-memfd_secrect-test-program-runs-without-an-issue.patch removed from -mm tree Message-Id: <20231101194733.50310C433CB@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: tools/testing/selftests/mm/run_vmtests.sh: lower the ptrace permissions has been removed from the -mm tree. Its filename was lower-the-ptrace-permissions-so-that-the-memfd_secrect-test-program-runs-without-an-issue.patch This patch was dropped because it was merged into the mm-nonmm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Itaru Kitayama Subject: tools/testing/selftests/mm/run_vmtests.sh: lower the ptrace permissions Date: Mon, 30 Oct 2023 17:54:45 +0900 On Ubuntu and probably other distros, ptrace permissions are tightend a bit by default; i.e., /proc/sys/kernel/yama/ptrace_score is set to 1. This cases memfd_secret's ptrace attach test fails with a permission error. Set it to 0 piror to running the program. Link: https://lkml.kernel.org/r/20231030-selftest-v1-1-743df68bb996@linux.dev Signed-off-by: Itaru Kitayama Cc: Shuah Khan Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/run_vmtests.sh | 1 + 1 file changed, 1 insertion(+) --- a/tools/testing/selftests/mm/run_vmtests.sh~lower-the-ptrace-permissions-so-that-the-memfd_secrect-test-program-runs-without-an-issue +++ a/tools/testing/selftests/mm/run_vmtests.sh @@ -303,6 +303,7 @@ CATEGORY="hmm" run_test bash ./test_hmm. # MADV_POPULATE_READ and MADV_POPULATE_WRITE tests CATEGORY="madv_populate" run_test ./madv_populate +echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope CATEGORY="memfd_secret" run_test ./memfd_secret # KSM KSM_MERGE_TIME_HUGE_PAGES test with size of 100 _ Patches currently in -mm which might be from itaru.kitayama@linux.dev are