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From:   =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com>
To:     selinux@vger.kernel.org
Cc:     Paul Moore <paul@paul-moore.com>,
        Stephen Smalley <stephen.smalley.work@gmail.com>,
        Eric Paris <eparis@parisplace.org>,
        linux-kernel@vger.kernel.org
Subject: [PATCH v2] selinux: log about VM being executable by default
Date:   Fri, 28 Jul 2023 17:01:49 +0200
Message-Id: <20230728150150.16224-1-cgzones@googlemail.com>
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In case virtual memory is being marked as executable by default, SELinux
checks regarding explicit potential dangerous use are disabled.

Inform the user about it.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
---
v2:
   shorten message as suggested by Paul
---
 security/selinux/hooks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 5194f12def97..7cd687284563 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -7265,6 +7265,8 @@ static __init int selinux_init(void)
 	cred_init_security();
 
 	default_noexec = !(VM_DATA_DEFAULT_FLAGS & VM_EXEC);
+	if (!default_noexec)
+		pr_notice("SELinux:  virtual memory is executable by default\n");
 
 	avc_init();
 
-- 
2.40.1