[PATCH v3 1/7] kprobes: Make blacklist root user read only

[Masami Hiramatsu]

Since the blacklist file indicates a sensitive address
information to reader, it should be restricted to the
root user.

Suggested-by: Thomas Richter <tmri...@linux.ibm.com>
Signed-off-by: Masami Hiramatsu <mhira...@kernel.org>
---
 kernel/kprobes.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index ea619021d901..51096eece801 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2621,7 +2621,7 @@ static int __init debugfs_kprobe_init(void)
        if (!file)
                goto error;
 
-       file = debugfs_create_file("blacklist", 0444, dir, NULL,
+       file = debugfs_create_file("blacklist", 0400, dir, NULL,
                                &debugfs_kprobe_blacklist_ops);
        if (!file)
                goto error;