From patchwork Tue Apr 8 14:34:02 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Clayton Casciato X-Patchwork-Id: 60991 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 aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id B89CAC369A4 for ; Tue, 8 Apr 2025 14:34:10 +0000 (UTC) Received: from mail-oi1-f177.google.com (mail-oi1-f177.google.com [209.85.167.177]) by mx.groups.io with SMTP id smtpd.web11.76679.1744122844651212155 for ; Tue, 08 Apr 2025 07:34:04 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20230601 header.b=WeFkPXcK; spf=pass (domain: gmail.com, ip: 209.85.167.177, mailfrom: majortomtosourcecontrol@gmail.com) Received: by mail-oi1-f177.google.com with SMTP id 5614622812f47-3fec2899574so3597620b6e.2 for ; Tue, 08 Apr 2025 07:34:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1744122844; x=1744727644; darn=lists.yoctoproject.org; h=content-transfer-encoding:subject:from:to:content-language :user-agent:mime-version:date:message-id:from:to:cc:subject:date :message-id:reply-to; bh=bGDeOwZaEQf8OwUdm0hGAtK3vuG/bWRCfeNSoSLNEpc=; b=WeFkPXcK0drrTFkWJZwJ4vcgDeax4bZZo1rQGGQbMjhuLX82c/h6ub/+Wvy6LXKXyt 6tMTeY2kSQvRI9VpOhnTooKmnPta5C7S199KDJKWcMPIYKRc3btgnvUDP/vdMzc3zTYF lM0strzpSIpg3DaEY58bYh0/Gbm4WZDdq8Tgwsi6gDDG+KZqTHn+Z5Hw939IcixRvYeZ L9tuvVbEDQlN/Z9LtbVxTMXpi7Lm0OVGKkxf+SL4RrUW9CLQhbAsk0V+DLZ6HTOT2mU0 NgTeYn68Kdvu5sJN3oQy/3UL8w2HoV/blqQoWrxhP0eO/qm4vHIgIuA49lC2FIoDykii MLzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744122844; x=1744727644; h=content-transfer-encoding:subject:from:to:content-language :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=bGDeOwZaEQf8OwUdm0hGAtK3vuG/bWRCfeNSoSLNEpc=; b=ZoXnJSgarMYtqKk8lzAPlIC+i/Ni+h/smhmyosoG56dURI6KDn67XRRICCv4mNEd4/ JtQDjEWD1HaLrTnUDt4UL6e2MGfrS1AKkiEbcDXk4SgyUWxieXpU2gnjYzSDL3b2VUvs HIrguJd3d78fnUtDE6C1UreS0lKdnsjLYTWzqNGuH+2qg8o6Zh7vJHEQKxqflLFlXY3L MSaP99SoBONMeXQ3StWi+OAAEKLXNmtu7SHoPRYkEiG9vuG3TnfyRQtPOnhtMQv73ygu VqEjzfQm0dMpxbXdXP1h8fP9W6bSJBq45a8vCqAsMdamgrafb6UsUurV/ygKNpZrEU9O hqiQ== X-Forwarded-Encrypted: i=1; AJvYcCUPxhZvtwXPhFiauBhX/mA43auv86YcgMFFGUxxTrpxNF634weVTI6iENWxA3E6mhnPZGwz1yaPQ0dZjzlU@lists.yoctoproject.org X-Gm-Message-State: AOJu0Yz8k35kemwNAeig/GBeVoYSIktmDYvDf5GKezGI/eHhzxi2v7yZ PvTaSSoTxssMRtJzfv+eD0QkKL47PlzAyYGgHxODqujDNvLBTBlu X-Gm-Gg: ASbGncs1U7EWSxhR+ub//7ScJv6dvy+jSdhP12iUjCbNYDJsMgZg9Bp661OSL9SynIQ HkPtGRw+XQ95ZbzOkLaeec/YZe97tYWmTNAsnIdgi4IrBis7dXt9xtgoxs5fCC4tZX/yePFJOkw Ix33r/X1ztu1HK96f0fFiaLI8Kh85FXdVHXT9/kqmL77ggalYK2wVK2uDuwmIdknJnrL4RmM5nH +biST4iccuciMzyTtNQFFACEC58CWdIcUuKMqmI7Ivf4Q7pPndU2aeExudIrUmV2eRP94/CURkm 0Qrhh0MNrQYHHmfUhGu+uKsZESS2ddUakq0HaY7GQkxU7f6S3KLjtgAo4gjPkiCqBMPxlpCa2b0 xkN+Vi2kmJlekEhvsB4rheA== X-Google-Smtp-Source: AGHT+IFdmKhHYtgsHPTl6CyKVjdv7Wx0RMJtivMRQpM2Nr4iC8LeoKdP5BxwOeKgvyZmEsgfRTyhag== X-Received: by 2002:a05:6808:1827:b0:3f9:1fee:8030 with SMTP id 5614622812f47-4004d97e5dcmr6903664b6e.9.1744122843843; Tue, 08 Apr 2025 07:34:03 -0700 (PDT) Received: from [172.26.252.3] (174-29-216-122.hlrn.qwest.net. [174.29.216.122]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-6044f4a8bbcsm481114eaf.14.2025.04.08.07.34.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Apr 2025 07:34:03 -0700 (PDT) Message-ID: <330afc35-662c-41da-af44-2087ee0e1fee@gmail.com> Date: Tue, 8 Apr 2025 08:34:02 -0600 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: joe.macdonald@siemens.com, yi.zhao@windriver.com, yocto-patches@lists.yoctoproject.org From: Clayton Casciato Subject: [meta-selinux][styhead][PATCH] refpolicy: locallogin - allow sulogin_t unconfined domtrans List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Tue, 08 Apr 2025 14:34:10 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/yocto-patches/message/1334 Signed-off-by: Clayton Casciato --- ...ystem-locallogin-allow-sulogin_t-unc.patch | 81 +++++++++++++++++++ .../refpolicy/refpolicy_common.inc | 1 + 2 files changed, 82 insertions(+) create mode 100644 recipes-security/refpolicy/refpolicy/0064-policy-modules-system-locallogin-allow-sulogin_t-unc.patch diff --git a/recipes-security/refpolicy/refpolicy/0064-policy-modules-system-locallogin-allow-sulogin_t-unc.patch b/recipes-security/refpolicy/refpolicy/0064-policy-modules-system-locallogin-allow-sulogin_t-unc.patch new file mode 100644 index 0000000..935f3d5 --- /dev/null +++ b/recipes-security/refpolicy/refpolicy/0064-policy-modules-system-locallogin-allow-sulogin_t-unc.patch @@ -0,0 +1,81 @@ +From 43dcc59a402353f79acfd9247daafe3e9fa0d13f Mon Sep 17 00:00:00 2001 +From: Clayton Casciato +Date: Tue, 18 Mar 2025 12:49:43 -0600 +Subject: [PATCH] locallogin: allow sulogin_t unconfined domtrans + +type=PROCTITLE proctitle=/usr/sbin/sulogin + +type=PATH item=0 name=/usr/lib/ld-linux-armhf.so.3 inode=1956 dev=b3:32 +mode=file,755 ouid=root ogid=root rdev=00:00 +obj=system_u:object_r:ld_so_t:s0 nametype=NORMAL cap_fp=none cap_fi=none +cap_fe=0 cap_fver=0 cap_frootid=0 + +type=CWD cwd=/root + +type=EXECVE argc=1 a0=sh + +type=SYSCALL arch=armeb syscall=execve per=PER_LINUX success=yes exit=0 +a0=0x43032e a1=0xbec21aa8 a2=0x431760 a3=0xb6f61df0 items=1 ppid=352 +pid=353 auid=unset uid=root gid=root euid=root suid=root fsuid=root +egid=root sgid=root fsgid=root tty=ttyS0 ses=unset comm=sh +exe=/usr/bin/bash.bash subj=unconfined_u:unconfined_r:unconfined_t:s0 +key=(null) + +type=AVC avc: denied { siginh } for pid=353 comm=sh +scontext=system_u:system_r:sulogin_t:s0 +tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process + +type=AVC avc: denied { rlimitinh } for pid=353 comm=sh +scontext=system_u:system_r:sulogin_t:s0 +tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process + +type=AVC avc: denied { noatsecure } for pid=353 comm=sulogin +scontext=system_u:system_r:sulogin_t:s0 +tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process + +type=AVC avc: denied { transition } for pid=353 comm=sulogin +path=/usr/bin/bash.bash dev="mmcblk0p2" ino=689 +scontext=system_u:system_r:sulogin_t:s0 +tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process + +-- + +Similar policy: + +https://github.com/SELinuxProject/refpolicy/blob/RELEASE_2_20250213/policy/modules/services/cockpit.te#L222 + +-- + +Fedora: + +$ sesearch -A --source sulogin_t --target unconfined_t --class process +allow domain unconfined_t:process sigchld; +allow unconfined_login_domain unconfined_t:process transition; +[ unconfined_login ]:True + +$ getsebool -a | grep unconfined_login +unconfined_login --> on + +https://github.com/fedora-selinux/selinux-policy/blob/v41.34/policy/modules/system/locallogin.te#L277 + +Signed-off-by: Clayton Casciato + +Upstream-Status: Backport [https://github.com/SELinuxProject/refpolicy/commit/ec2b2befdd9f3760b6afcc4ec45a4c07e78e2932] + +Signed-off-by: Clayton Casciato +--- + policy/modules/system/locallogin.te | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/policy/modules/system/locallogin.te b/policy/modules/system/locallogin.te +index 02c7ff56d..fcec23010 100644 +--- a/policy/modules/system/locallogin.te ++++ b/policy/modules/system/locallogin.te +@@ -298,3 +298,7 @@ optional_policy(` + optional_policy(` + nscd_use(sulogin_t) + ') ++ ++optional_policy(` ++ unconfined_domtrans(sulogin_t) ++') diff --git a/recipes-security/refpolicy/refpolicy_common.inc b/recipes-security/refpolicy/refpolicy_common.inc index 21bfbb8..c5b41ee 100644 --- a/recipes-security/refpolicy/refpolicy_common.inc +++ b/recipes-security/refpolicy/refpolicy_common.inc @@ -79,6 +79,7 @@ SRC_URI += " \ file://0061-policy-modules-services-firewalld-fix-firewalld_t-fi.patch \ file://0062-policy-modules-multiple-filetrans-run_machine_id-etc.patch \ file://0063-policy-modules-system-locallogin-dontaudit-sulogin_t.patch \ + file://0064-policy-modules-system-locallogin-allow-sulogin_t-unc.patch \ " S = "${WORKDIR}/refpolicy"