kernel: netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fully validate NFTDATAVALUE on store to data registers register store validation for NFTDATAVALUE is conditional, however, the datatype is always either NFTDATAVALUE or NFTDATAVERDICT. This only requires a ne...