diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-03-03 23:58:27 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-03-04 03:58:55 +0100 |
| commit | 2888b080d05c819205bbfe52c624a639f44c266a (patch) | |
| tree | 10b395e39d58471e1ee37e9ee8f4a54176154bf4 /net | |
| parent | 9cc0001a18b4e5f46ec481201c88ae16f0a69bb0 (diff) | |
netfilter: nftables: fix possible double hook unregistration with table owner
Skip hook unregistration of owner tables from the netns exit path,
nft_rcv_nl_event() unregisters the table hooks before tearing down
the table content.
Fixes: 6001a930ce03 ("netfilter: nftables: introduce table ownership")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index b07703e19108..796ce86ef7eb 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -9028,8 +9028,12 @@ static void __nft_release_hooks(struct net *net) { struct nft_table *table; - list_for_each_entry(table, &net->nft.tables, list) + list_for_each_entry(table, &net->nft.tables, list) { + if (nft_table_has_owner(table)) + continue; + __nft_release_hook(net, table); + } } static void __nft_release_table(struct net *net, struct nft_table *table) |