The bpf_ipv6_fib_lookup function should return BPF_FIB_LKUP_RET_FWD_DISABLED
when forwarding is disabled for the input device. However instead of checking
if forwarding is enabled on the input device, it checked the global
net->ipv6.devconf_all->forwarding flag. Change it to behave as expected.
Signed-off-by: Anton Protopopov <a.s.protopopov@xxxxxxxxx>
---
net/core/filter.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/filter.c b/net/core/filter.c
index f615e42cf4ef..3fdf1b21be36 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4737,7 +4737,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
return -ENODEV;
idev = __in6_dev_get_safely(dev);
- if (unlikely(!idev || !net->ipv6.devconf_all->forwarding))
+ if (unlikely(!idev || !idev->cnf.forwarding))
return BPF_FIB_LKUP_RET_FWD_DISABLED;
if (flags & BPF_FIB_LOOKUP_OUTPUT) {
--
2.19.1
