From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
[ Upstream commit b0e256f3dd2ba6532f37c5c22e07cb07a36031ee ]
Clone already always provides a current view of the lookup table, use it
to destroy the set, otherwise it is possible to destroy elements twice.
This fix requires:
212ed75dc5fb ("netfilter: nf_tables: integrate pipapo into commit protocol")
which came after:
9827a0e6e23b ("netfilter: nft_set_pipapo: release elements in clone from abort path").
Fixes: 9827a0e6e23b ("netfilter: nft_set_pipapo: release elements in clone from abort path")
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/netfilter/nft_set_pipapo.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c
index e1969209b3abb..58eca26162735 100644
--- a/net/netfilter/nft_set_pipapo.c
+++ b/net/netfilter/nft_set_pipapo.c
@@ -2240,8 +2240,6 @@ static void nft_pipapo_destroy(const struct nft_ctx *ctx,
if (m) {
rcu_barrier();
- nft_set_pipapo_match_destroy(ctx, set, m);
-
for_each_possible_cpu(cpu)
pipapo_free_scratch(m, cpu);
free_percpu(m->scratch);
@@ -2253,8 +2251,7 @@ static void nft_pipapo_destroy(const struct nft_ctx *ctx,
if (priv->clone) {
m = priv->clone;
- if (priv->dirty)
- nft_set_pipapo_match_destroy(ctx, set, m);
+ nft_set_pipapo_match_destroy(ctx, set, m);
for_each_possible_cpu(cpu)
pipapo_free_scratch(priv->clone, cpu);
--
2.43.0
