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-rw-r--r--Documentation/security/LSM.txt7
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diff --git a/Documentation/security/LSM.txt b/Documentation/security/LSM.txt
index 3db7e671c440..c2683f28ed36 100644
--- a/Documentation/security/LSM.txt
+++ b/Documentation/security/LSM.txt
@@ -22,6 +22,13 @@ system, building their checks on top of the defined capability hooks.
For more details on capabilities, see capabilities(7) in the Linux
man-pages project.
+A list of the active security modules can be found by reading
+/sys/kernel/security/lsm. This is a comma separated list, and
+will always include the capability module. The list reflects the
+order in which checks are made. The capability module will always
+be first, followed by any "minor" modules (e.g. Yama) and then
+the one "major" module (e.g. SELinux) if there is one configured.
+
Based on https://lkml.org/lkml/2007/10/26/215,
a new LSM is accepted into the kernel when its intent (a description of
what it tries to protect against and in what cases one would expect to

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