diff mbox series

[net,3/3] netfilter: nf_tables: disable register tracking

Message ID 20220312220315.64531-4-pablo@netfilter.org
State Accepted
Delegated to: Pablo Neira
Headers show
Series [net,1/3] Revert "netfilter: nat: force port remap to prevent shadowing well-known ports" | expand

Commit Message

Pablo Neira Ayuso March 12, 2022, 10:03 p.m. UTC 
The register tracking infrastructure is incomplete, it might lead to
generating incorrect ruleset bytecode, disable it by now given we are
late in the release process.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_tables_api.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index c86748b3873b..d71a33ae39b3 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -8260,6 +8260,12 @@  void nf_tables_trans_destroy_flush_work(void)
 }
 EXPORT_SYMBOL_GPL(nf_tables_trans_destroy_flush_work);
 
+static bool nft_expr_reduce(struct nft_regs_track *track,
+			    const struct nft_expr *expr)
+{
+	return false;
+}
+
 static int nf_tables_commit_chain_prepare(struct net *net, struct nft_chain *chain)
 {
 	const struct nft_expr *expr, *last;
@@ -8307,8 +8313,7 @@  static int nf_tables_commit_chain_prepare(struct net *net, struct nft_chain *cha
 		nft_rule_for_each_expr(expr, last, rule) {
 			track.cur = expr;
 
-			if (expr->ops->reduce &&
-			    expr->ops->reduce(&track, expr)) {
+			if (nft_expr_reduce(&track, expr)) {
 				expr = track.cur;
 				continue;
 			}