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caif: don't set connection request param size before copying data

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The size field should not be set until after the data is successfully
copied in.

Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Rosenberg 2011-01-10 16:00:54 -08:00 committed by David S. Miller
parent 80ce3f67e7
commit 91b5c98c2e
1 changed files with 1 additions and 1 deletions
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2
net/caif/caif_socket.c
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@ -740,12 +740,12 @@ static int setsockopt(struct socket *sock,
if (cf_sk->sk.sk_protocol != CAIFPROTO_UTIL)
return -ENOPROTOOPT;
lock_sock(&(cf_sk->sk));
cf_sk->conn_req.param.size = ol;
if (ol > sizeof(cf_sk->conn_req.param.data) ||
copy_from_user(&cf_sk->conn_req.param.data, ov, ol)) {
release_sock(&cf_sk->sk);
return -EINVAL;
}
cf_sk->conn_req.param.size = ol;
release_sock(&cf_sk->sk);
return 0;