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irda: Sock leak on error path in irda_create.

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Bad type/protocol specified result in sk leak.

Fix is simple - release the sk if bad values are given,
but to make it possible just to call sk_free(), I move
some sk initialization a bit lower.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2008-06-03 15:18:36 -07:00 committed by David S. Miller
parent 7dccf1f4e1
commit 9ecad87794
1 changed files with 7 additions and 5 deletions
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12
net/irda/af_irda.c
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@ -1093,11 +1093,6 @@ static int irda_create(struct net *net, struct socket *sock, int protocol)
init_waitqueue_head(&self->query_wait);
/* Initialise networking socket struct */
sock_init_data(sock, sk); /* Note : set sk->sk_refcnt to 1 */
sk->sk_family = PF_IRDA;
sk->sk_protocol = protocol;
switch (sock->type) {
case SOCK_STREAM:
sock->ops = &irda_stream_ops;
@ -1124,13 +1119,20 @@ static int irda_create(struct net *net, struct socket *sock, int protocol)
self->max_sdu_size_rx = TTP_SAR_UNBOUND;
break;
default:
sk_free(sk);
return -ESOCKTNOSUPPORT;
}
break;
default:
sk_free(sk);
return -ESOCKTNOSUPPORT;
}
/* Initialise networking socket struct */
sock_init_data(sock, sk); /* Note : set sk->sk_refcnt to 1 */
sk->sk_family = PF_IRDA;
sk->sk_protocol = protocol;
/* Register as a client with IrLMP */
self->ckey = irlmp_register_client(0, NULL, NULL, NULL);
self->mask.word = 0xffff;