In article [ref] (at Wed, 28 May 2008 16:54:22 +0200), Thomas Graf [off-list ref] says:

Due to the missing check, the currently code allows for any 8 bit
value to be passed on as prefix length while using the netlink
interface, and any 32 bit value while using the ioctl interface.

Signed-off-by: Thomas Graf <tgraf@suug.ch>

I'm going to apply think.  Thank you.

--yoshfuji