Commit 0e07e25b authored by Pablo Neira Ayuso's avatar Pablo Neira Ayuso
Browse files

netfilter: flowtable: fix NAT IPv6 offload mangling 



Fix out-of-bound access in the address array.

Fixes: 5c27d8d7 ("netfilter: nf_flow_table_offload: add IPv6 support")
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 9adc89af

net/netfilter/nf_flow_table_offload.c

+3 −3
Original line number Diff line number Diff line
@@ -305,12 +305,12 @@ static void flow_offload_ipv6_mangle(struct nf_flow_rule *flow_rule, 
				     const __be32 *addr, const __be32 *mask)

{

	struct flow_action_entry *entry;

	int i;

	int i, j;



	for (i = 0; i < sizeof(struct in6_addr) / sizeof(u32); i += sizeof(u32)) {

	for (i = 0, j = 0; i < sizeof(struct in6_addr) / sizeof(u32); i += sizeof(u32), j++) {

		entry = flow_action_entry_next(flow_rule);

		flow_offload_mangle(entry, FLOW_ACT_MANGLE_HDR_TYPE_IP6,

				    offset + i, &addr[i], mask);

				    offset + i, &addr[j], mask);

	}

}