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Date: Mon, 24 Jun 2019 17:57:01 +0800 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, syzbot+a90604060cb40f5bdd16@...kaller.appspotmail.com, Willem de Bruijn <willemb@...gle.com>, Marc Kleine-Budde <mkl@...gutronix.de> Subject: [PATCH 4.19 71/90] can: purge socket error queue on sock destruct From: Willem de Bruijn <willemb@...gle.com> commit fd704bd5ee749d560e86c4f1fd2ef486d8abf7cf upstream. CAN supports software tx timestamps as of the below commit. Purge any queued timestamp packets on socket destroy. Fixes: 51f31cabe3ce ("ip: support for TX timestamps on UDP and RAW sockets") Reported-by: syzbot+a90604060cb40f5bdd16@...kaller.appspotmail.com Signed-off-by: Willem de Bruijn <willemb@...gle.com> Cc: linux-stable <stable@...r.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- net/can/af_can.c | 1 + 1 file changed, 1 insertion(+) --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -105,6 +105,7 @@ EXPORT_SYMBOL(can_ioctl); static void can_sock_destruct(struct sock *sk) { skb_queue_purge(&sk->sk_receive_queue); + skb_queue_purge(&sk->sk_error_queue); } static const struct can_proto *can_get_proto(int protocol)
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