[RFC PATCH 1/9] security/fbfam: Add a Kconfig to enable the fbfam feature

[John Wood <john.wood@gmx.com>]

Add a menu entry under "Security options" to enable the "Fork brute
force attack mitigation" feature.

Signed-off-by: John Wood <john.wood@gmx.com>
---
 security/Kconfig       |  1 +
 security/fbfam/Kconfig | 10 ++++++++++
 2 files changed, 11 insertions(+)
 create mode 100644 security/fbfam/Kconfig

diff --git a/security/Kconfig b/security/Kconfig
index 7561f6f99f1d..00a90e25b8d5 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -290,6 +290,7 @@ config LSM
 	  If unsure, leave this as the default.

 source "security/Kconfig.hardening"
+source "security/fbfam/Kconfig"

 endmenu

diff --git a/security/fbfam/Kconfig b/security/fbfam/Kconfig
new file mode 100644
index 000000000000..bbe7f6aad369
--- /dev/null
+++ b/security/fbfam/Kconfig
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+config FBFAM
+	bool "Fork brute force attack mitigation"
+	default n
+	help
+	  This is a user defense that detects any fork brute force attack
+	  based on the application's crashing rate. When this measure is
+	  triggered the fork system call is blocked.
+
+	  If you are unsure how to answer this question, answer N.
--
2.25.1