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rxrpc: Validate the net address given to rxrpc_kernel_begin_call()

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Validate the net address given to rxrpc_kernel_begin_call() before using
it.

Whilst this should be mostly unnecessary for in-kernel users, it does clear
the tail of the address struct in case we want to hash or compare the whole
thing.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2016-06-17 11:00:48 +01:00
parent 4a3388c803
commit f4552c2d24
1 changed files with 5 additions and 0 deletions
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5
net/rxrpc/af_rxrpc.c
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@ -280,9 +280,14 @@ struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock,
struct rxrpc_transport *trans;
struct rxrpc_call *call;
struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
int ret;
_enter(",,%x,%lx", key_serial(key), user_call_ID);
ret = rxrpc_validate_address(rx, srx, sizeof(*srx));
if (ret < 0)
return ERR_PTR(ret);
lock_sock(&rx->sk);
if (!key)