mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-27 12:57:53 +00:00
Code Issues Releases Wiki Activity

netfilter: flowtable: really fix NAT IPv6 offload

Browse source 
The for-loop was broken from the start. It translates to:

	for (i = 0; i < 4; i += 4)

which means the loop statement is run only once, so only the highest
32-bit of the IPv6 address gets mangled.

Fix the loop increment.

Fixes: 0e07e25b48 ("netfilter: flowtable: fix NAT IPv6 offload mangling")
Fixes: 5c27d8d76c ("netfilter: nf_flow_table_offload: add IPv6 support")
Signed-off-by: Qingfang DENG <dqfext@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Qingfang DENG 2022-12-08 20:35:29 +08:00 committed by Pablo Neira Ayuso
parent f8bac7f9fd
commit 5fb45f95ee
1 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
net/netfilter/nf_flow_table_offload.c
View file

@ -383,12 +383,12 @@ 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, j;
int i;
for (i = 0, j = 0; i < sizeof(struct in6_addr) / sizeof(u32); i += sizeof(u32), j++) {
for (i = 0; i < sizeof(struct in6_addr) / sizeof(u32); i++) {
entry = flow_action_entry_next(flow_rule);
flow_offload_mangle(entry, FLOW_ACT_MANGLE_HDR_TYPE_IP6,
offset + i, &addr[j], mask);
offset + i * sizeof(u32), &addr[i], mask);
}
}