"ct untracked" no longer works properly due to erroneous NFT_BREAK.
We have to check ctinfo enum first.
Fixes: d9e789147605 ("netfilter: nf_tables: avoid retpoline overhead for some ct expression calls")
Reported-by: Rvfg <i@xxxxxxxx>
Link: https://marc.info/?l=netfilter&m=168294996212038&w=2
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
net/netfilter/nft_ct_fast.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/net/netfilter/nft_ct_fast.c b/net/netfilter/nft_ct_fast.c
index 89983b0613fa..e684c8a91848 100644
--- a/net/netfilter/nft_ct_fast.c
+++ b/net/netfilter/nft_ct_fast.c
@@ -15,10 +15,6 @@ void nft_ct_get_fast_eval(const struct nft_expr *expr,
unsigned int state;
ct = nf_ct_get(pkt->skb, &ctinfo);
- if (!ct) {
- regs->verdict.code = NFT_BREAK;
- return;
- }
switch (priv->key) {
case NFT_CT_STATE:
@@ -30,6 +26,16 @@ void nft_ct_get_fast_eval(const struct nft_expr *expr,
state = NF_CT_STATE_INVALID_BIT;
*dest = state;
return;
+ default:
+ break;
+ }
+
+ if (!ct) {
+ regs->verdict.code = NFT_BREAK;
+ return;
+ }
+
+ switch (priv->key) {
case NFT_CT_DIRECTION:
nft_reg_store8(dest, CTINFO2DIR(ctinfo));
return;
--
2.40.1
