From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: Thu, 10 Oct 2019 10:50:31 +0000 (+0200)
Subject: can: j1939: fix memory leak if filters was set
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=896daf723c845289a4ea1e68e74a5a5475aa796d;p=linux.git

can: j1939: fix memory leak if filters was set

Filters array is coped from user space and linked to the j1939 socket.
On socket release this memory was not freed.

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---

diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c
index 5c6eabcb5df1e..4d8ba701e15d8 100644
--- a/net/can/j1939/socket.c
+++ b/net/can/j1939/socket.c
@@ -580,6 +580,7 @@ static int j1939_sk_release(struct socket *sock)
 		j1939_netdev_stop(priv);
 	}
 
+	kfree(jsk->filters);
 	sock_orphan(sk);
 	sock->sk = NULL;