@@ -10455,10 +10455,11 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
struct nft_trans *trans, *next;
LIST_HEAD(set_update_list);
struct nft_trans_elem *te;
+ int err = 0;
if (action == NFNL_ABORT_VALIDATE &&
nf_tables_validate(net) < 0)
- return -EAGAIN;
+ err = -EAGAIN;
list_for_each_entry_safe_reverse(trans, next, &nft_net->commit_list,
list) {
@@ -10655,7 +10656,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
else
nf_tables_module_autoload_cleanup(net);
- return 0;
+ return err;
}
static int nf_tables_abort(struct net *net, struct sk_buff *skb,
@@ -10668,6 +10669,9 @@ static int nf_tables_abort(struct net *net, struct sk_buff *skb,
gc_seq = nft_gc_seq_begin(nft_net);
ret = __nf_tables_abort(net, action);
nft_gc_seq_end(nft_net, gc_seq);
+
+ WARN_ON_ONCE(!list_empty(&nft_net->commit_list));
+
mutex_unlock(&nft_net->commit_mutex);
return ret;
Unlikely early commit path stage which triggers a call to abort, an explicit release of the batch is required on abort, otherwise mutex is released and commit_list remains in place. Add WARN_ON_ONCE to ensure commit_list is empty from the abort path before releasing the mutex. Cc: stable@vger.kernel.org Fixes: c0391b6ab810 ("netfilter: nf_tables: missing validation from the abort path") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- net/netfilter/nf_tables_api.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)