diff options
| author |   Pablo Neira Ayuso <pablo@netfilter.org> | 2024-04-03 19:35:30 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-04-04 11:38:35 +0200 |
| commit | 1bc83a019bbe268be3526406245ec28c2458a518 (patch) | |
| tree | bfa1e23fadc72ec10c914021bacc1336812e886e | |
| parent | netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() (diff) | |
| download | wireguard-linux-1bc83a019bbe268be3526406245ec28c2458a518.tar.xz wireguard-linux-1bc83a019bbe268be3526406245ec28c2458a518.zip | |
netfilter: nf_tables: discard table flag update with pending basechain deletion
Hook unregistration is deferred to the commit phase, same occurs with
hook updates triggered by the table dormant flag. When both commands are
combined, this results in deleting a basechain while leaving its hook
still registered in the core.
Fixes: 179d9ba5559a ("netfilter: nf_tables: fix table flag updates")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to '')
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index e02d0ae4f436..d89d77946719 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -1209,10 +1209,11 @@ static bool nft_table_pending_update(const struct nft_ctx *ctx) return true; list_for_each_entry(trans, &nft_net->commit_list, list) { - if ((trans->msg_type == NFT_MSG_NEWCHAIN || - trans->msg_type == NFT_MSG_DELCHAIN) && - trans->ctx.table == ctx->table && - nft_trans_chain_update(trans)) + if (trans->ctx.table == ctx->table && + ((trans->msg_type == NFT_MSG_NEWCHAIN && + nft_trans_chain_update(trans)) || + (trans->msg_type == NFT_MSG_DELCHAIN && + nft_is_base_chain(trans->ctx.chain)))) return true; } |