diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2011-10-20 08:27:24 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-21 10:53:07 +0400 |
| commit | 2259fef0bb80a8fc842b5690b89a640464df2859 (patch) | |
| tree | 47ea67b829da2e1596a28f32536cf83e9dfbf436 /drivers/net | |
| parent | 047af9cfedfa357e1497e327eaa893253ca51971 (diff) | |
| download | linux-2259fef0bb80a8fc842b5690b89a640464df2859.tar.xz | |
macvtap: Don't leak unreceived packets when we delete a macvtap device.
To avoid leaking packets in the receive queue. Add a socket destructor
that will run whenever destroy a macvtap socket.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/macvtap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 1d9c9c209672..515aa873929e 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -339,6 +339,11 @@ static void macvtap_sock_write_space(struct sock *sk) wake_up_interruptible_poll(wqueue, POLLOUT | POLLWRNORM | POLLWRBAND); } +static void macvtap_sock_destruct(struct sock *sk) +{ + skb_queue_purge(&sk->sk_receive_queue); +} + static int macvtap_open(struct inode *inode, struct file *file) { struct net *net = current->nsproxy->net_ns; @@ -369,6 +374,7 @@ static int macvtap_open(struct inode *inode, struct file *file) q->sock.ops = &macvtap_socket_ops; sock_init_data(&q->sock, &q->sk); q->sk.sk_write_space = macvtap_sock_write_space; + q->sk.sk_destruct = macvtap_sock_destruct; q->flags = IFF_VNET_HDR | IFF_NO_PI | IFF_TAP; q->vnet_hdr_sz = sizeof(struct virtio_net_hdr); |