From: Ben Hutchings <ben@decadent.org.uk>
Subject: yama: Disable by default
Date: Wed, 19 Jun 2013 04:35:28 +0100
Bug-Debian: https://bugs.debian.org/712740
Forwarded: not-needed

Index: linux/security/yama/yama_lsm.c
===================================================================
--- linux.orig/security/yama/yama_lsm.c
+++ linux/security/yama/yama_lsm.c
@@ -28,7 +28,7 @@
 #define YAMA_SCOPE_CAPABILITY	2
 #define YAMA_SCOPE_NO_ATTACH	3
 
-static int ptrace_scope = YAMA_SCOPE_RELATIONAL;
+static int ptrace_scope = YAMA_SCOPE_DISABLED;
 
 /* describe a ptrace relationship for potential exception */
 struct ptrace_relation {
@@ -481,7 +481,7 @@ static inline void yama_init_sysctl(void
 
 void __init yama_add_hooks(void)
 {
-	pr_info("Yama: becoming mindful.\n");
+	pr_info("Yama: disabled by default; enable with sysctl kernel.yama.*\n");
 	security_add_hooks(yama_hooks, ARRAY_SIZE(yama_hooks), "yama");
 	yama_init_sysctl();
 }