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can: test size of struct sockaddr in sendmsg
This patch makes the CAN socket code conform to the manpage of sendmsg. Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1256,6 +1256,9 @@ static int bcm_sendmsg(struct kiocb *iocb, struct socket *sock,
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struct sockaddr_can *addr =
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(struct sockaddr_can *)msg->msg_name;
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if (msg->msg_namelen < sizeof(*addr))
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return -EINVAL;
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if (addr->can_family != AF_CAN)
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return -EINVAL;
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@ -649,6 +649,9 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
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struct sockaddr_can *addr =
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(struct sockaddr_can *)msg->msg_name;
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if (msg->msg_namelen < sizeof(*addr))
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return -EINVAL;
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if (addr->can_family != AF_CAN)
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return -EINVAL;
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