Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Mon, 25 Mar 2019 15:09:53 -0700
In-Reply-To: <20190325220954.29054-1-matthewgarrett@google.com>
Message-Id: <20190325220954.29054-27-matthewgarrett@google.com>
Mime-Version: 1.0
References: <20190325220954.29054-1-matthewgarrett@google.com>
Subject: [PATCH 26/27] lockdown: Print current->comm in restriction messages
From:   Matthew Garrett <matthewgarrett@google.com>
To:     jmorris@namei.org
Cc:     linux-security-module@vger.kernel.org,
        linux-kernel@vger.kernel.org, dhowells@redhat.com,
        Matthew Garrett <matthewgarrett@google.com>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: David Howells <dhowells@redhat.com>

Print the content of current->comm in messages generated by lockdown to
indicate a restriction that was hit.  This makes it a bit easier to find
out what caused the message.

The message now patterned something like:

	Lockdown: <comm>: <what> is restricted; see man kernel_lockdown.7

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Matthew Garrett <matthewgarrett@google.com>
---
 security/lock_down.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/lock_down.c b/security/lock_down.c
index 18d8776a4d02..ee00ca2677e7 100644
--- a/security/lock_down.c
+++ b/security/lock_down.c
@@ -53,8 +53,8 @@ void __init init_lockdown(void)
 bool __kernel_is_locked_down(const char *what, bool first)
 {
 	if (what && first && kernel_locked_down)
-		pr_notice("Lockdown: %s is restricted; see man kernel_lockdown.7\n",
-			  what);
+		pr_notice("Lockdown: %s: %s is restricted; see man kernel_lockdown.7\n",
+			  current->comm, what);
 	return kernel_locked_down;
 }
 EXPORT_SYMBOL(__kernel_is_locked_down);
-- 
2.21.0.392.gf8f6787159e-goog