1 files changed, 15 insertions, 0 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 047365ac9faa..838d1e5e63a1 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -5300,6 +5300,20 @@ static int selinux_key_permission(key_ref_t key_ref,
                             SECCLASS_KEY, perm, NULL);
 }
 
+static int selinux_key_getsecurity(struct key *key, char **_buffer)
+{
+        struct key_security_struct *ksec = key->security;
+        char *context = NULL;
+        unsigned len;
+        int rc;
+
+        rc = security_sid_to_context(ksec->sid, &context, &len);
+        if (!rc)
+                rc = len;
+        *_buffer = context;
+        return rc;
+}
+
 #endif
 
 static struct security_operations selinux_ops = {
@@ -5488,6 +5502,7 @@ static struct security_operations selinux_ops = {
         .key_alloc =                    selinux_key_alloc,
         .key_free =                     selinux_key_free,
         .key_permission =               selinux_key_permission,
+        .key_getsecurity =              selinux_key_getsecurity,
 #endif
 
 #ifdef CONFIG_AUDIT