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[71.126.255.178]) by smtp.gmail.com with UTF8SMTPSA id 6a1803df08f44-87c0120ce79sm7028506d6.10.2025.10.14.16.12.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Oct 2025 16:12:49 -0700 (PDT) Date: Tue, 14 Oct 2025 19:12:48 -0400 Message-ID: <7cccbd87d3ca12f377fca6cbc564eb69@paul-moore.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Mailer: pstg-pwork:20251014_1821/pstg-lib:20251014_1132/pstg-pwork:20251014_1821 From: Paul Moore To: Casey Schaufler , casey@schaufler-ca.com, eparis@redhat.com, linux-security-module@vger.kernel.org, audit@vger.kernel.org Cc: jmorris@namei.org, serge@hallyn.com, keescook@chromium.org, john.johansen@canonical.com, penguin-kernel@i-love.sakura.ne.jp, stephen.smalley.work@gmail.com, linux-kernel@vger.kernel.org, selinux@vger.kernel.org Subject: Re: [PATCH RFC 6/15] LSM: Exclusive secmark usage References: <20250621171851.5869-7-casey@schaufler-ca.com> In-Reply-To: <20250621171851.5869-7-casey@schaufler-ca.com> On Jun 21, 2025 Casey Schaufler wrote: > > The network secmark can only be used by one security module > at a time. Establish mechanism to identify to security modules > whether they have access to the secmark. SELinux already > incorparates mechanism, but it has to be added to Smack and > AppArmor. > > Signed-off-by: Casey Schaufler > --- > include/linux/lsm_hooks.h | 1 + > security/apparmor/include/net.h | 5 +++++ > security/apparmor/lsm.c | 7 ++++--- > security/lsm_init.c | 6 ++++++ > security/selinux/hooks.c | 4 +++- > security/smack/smack.h | 5 +++++ > security/smack/smack_lsm.c | 3 ++- > security/smack/smack_netfilter.c | 10 ++++++++-- > 8 files changed, 34 insertions(+), 7 deletions(-) We discussed this patch in a separate patchset, lore link below. https://lore.kernel.org/linux-security-module/20251001215643.31465-1-casey@schaufler-ca.com/ -- paul-moore.com