From: Pablo Neira Ayuso pablo@netfilter.org
[ Upstream commit 86fe2c19eec4728fd9a42ba18f3b47f0d5f9fd7c ]
If the flowtable has been previously removed in this batch, skip the hook overlap checks. This fixes spurious EEXIST errors when removing and adding the flowtable in the same batch.
Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/netfilter/nf_tables_api.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 978a968d7aed..2e76935db2c8 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -6573,6 +6573,9 @@ static int nft_register_flowtable_net_hooks(struct net *net,
list_for_each_entry(hook, hook_list, list) { list_for_each_entry(ft, &table->flowtables, list) { + if (!nft_is_active_next(net, ft)) + continue; + list_for_each_entry(hook2, &ft->hook_list, list) { if (hook->ops.dev == hook2->ops.dev && hook->ops.pf == hook2->ops.pf) {