tree 51cf6649e755c9ee786cfdbbd9d03a6d22baf37c
parent 2b03bf732488a3c2e920afe22c03b82cb8477e28
author Laura Garcia Liebana <nevola@gmail.com> 1473858002 +0200
committer Pablo Neira Ayuso <pablo@netfilter.org> 1474615742 +0200

netfilter: nf_tables: validate maximum value of u32 netlink attributes

Fetch value and validate u32 netlink attribute. This validation is
usually required when the u32 netlink attributes are being stored in a
field whose size is smaller.

This patch revisits 4da449ae1df9 ("netfilter: nft_exthdr: Add size check
on u8 nft_exthdr attributes").

Fixes: 96518518cc41 ("netfilter: add nftables")
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>