[PATCH 27/27] lockdown: Print current->comm in restriction messages

From: Matthew Garrett
Date: Thu Feb 28 2019 - 18:13:26 EST


From: David Howells <dhowells@xxxxxxxxxx>

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@xxxxxxxxxx>
---
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 cfbc2c39712b..5243b55b3c1f 100644
--- a/security/lock_down.c
+++ b/security/lock_down.c
@@ -58,8 +58,8 @@ 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);
--
2.21.0.352.gf09ad66450-goog