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conn, device, tun: set CLOEXEC on fds

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Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Brad Fitzpatrick 2022-07-01 21:28:52 -07:00 • committed by Jason A. Donenfeld
parent 6a08d81f6b
commit c31a7b1ab4
6 changed files with 36 additions and 24 deletions
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2
device/sticky_linux.go
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@ -204,7 +204,7 @@ func (device *Device) routineRouteListener(bind conn.Bind, netlinkSock int, netl
}
func createNetlinkRouteSocket() (int, error) {
sock, err := unix.Socket(unix.AF_NETLINK, unix.SOCK_RAW, unix.NETLINK_ROUTE)
sock, err := unix.Socket(unix.AF_NETLINK, unix.SOCK_RAW|unix.SOCK_CLOEXEC, unix.NETLINK_ROUTE)
if err != nil {
return -1, err
}