Bluetooth: Cleanup blkcipher on SMP termination

The blkcipher must be freed to avoid memory leak.

Signed-off-by: Brian Gix <bgix@codeaurora.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

1 files changed, 9 insertions, 1 deletions

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 94e94ca35384..b9af4885ae53 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -379,7 +379,15 @@ static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
 
 void smp_chan_destroy(struct l2cap_conn *conn)
 {
-        kfree(conn->smp_chan);
+        struct smp_chan *smp = conn->smp_chan;
+
+        clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->pend);
+
+        if (smp->tfm)
+                crypto_free_blkcipher(smp->tfm);
+
+        kfree(smp);
+        conn->smp_chan = NULL;
         hci_conn_put(conn->hcon);
 }