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-rw-r--r--security/selinux/avc.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index e3d19014259..1ed0f076aad 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -709,18 +709,16 @@ out:
}
/**
- * avc_ss_reset - Flush the cache and revalidate migrated permissions.
- * @seqno: policy sequence number
+ * avc_flush - Flush the cache
*/
-int avc_ss_reset(u32 seqno)
+static void avc_flush(void)
{
- struct avc_callback_node *c;
- int i, rc = 0, tmprc;
- unsigned long flag;
- struct avc_node *node;
struct hlist_head *head;
struct hlist_node *next;
+ struct avc_node *node;
spinlock_t *lock;
+ unsigned long flag;
+ int i;
for (i = 0; i < AVC_CACHE_SLOTS; i++) {
head = &avc_cache.slots[i];
@@ -737,6 +735,18 @@ int avc_ss_reset(u32 seqno)
rcu_read_unlock();
spin_unlock_irqrestore(lock, flag);
}
+}
+
+/**
+ * avc_ss_reset - Flush the cache and revalidate migrated permissions.
+ * @seqno: policy sequence number
+ */
+int avc_ss_reset(u32 seqno)
+{
+ struct avc_callback_node *c;
+ int rc = 0, tmprc;
+
+ avc_flush();
for (c = avc_callbacks; c; c = c->next) {
if (c->events & AVC_CALLBACK_RESET) {
@@ -858,6 +868,8 @@ u32 avc_policy_seqno(void)
void avc_disable(void)
{
+ avc_flush();
+ synchronize_rcu();
if (avc_node_cachep)
kmem_cache_destroy(avc_node_cachep);
}