From: Oliver Hartkopp <[email protected]> commit b42b3a2744b3e8f427de79896720c72823af91ad upstream.
Initialize the sockaddr_can structure to prevent a data leak to user space. Suggested-by: Cong Wang <[email protected]> Reported-by: [email protected] Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol") Signed-off-by: Oliver Hartkopp <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Marc Kleine-Budde <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- net/can/isotp.c | 1 + 1 file changed, 1 insertion(+) --- a/net/can/isotp.c +++ b/net/can/isotp.c @@ -1139,6 +1139,7 @@ static int isotp_getname(struct socket * if (peer) return -EOPNOTSUPP; + memset(addr, 0, sizeof(*addr)); addr->can_family = AF_CAN; addr->can_ifindex = so->ifindex; addr->can_addr.tp.rx_id = so->rxid;
