audit: audit feature to only allow unsetting the loginuid
This is a new audit feature which only grants processes with
CAP_AUDIT_CONTROL the ability to unset their loginuid. They cannot
directly set it from a valid uid to another valid uid. The ability to
unset the loginuid is nice because a priviledged task, like that of
container creation, can unset the loginuid and then priv is not needed
inside the container when a login daemon needs to set the loginuid.
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/kernel/audit.c b/kernel/audit.c
index 29ee6a4..fbfa3a7 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -144,7 +144,8 @@
.features = 0,
.lock = 0,};
-static char *audit_feature_names[0] = {
+static char *audit_feature_names[1] = {
+ "only_unset_loginuid",
};