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| author | Florian Westphal <fw@strlen.de> | 2023-05-03 12:00:18 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2023-05-03 13:49:08 +0200 |
| commit | f057b63bc11d86a98176de31b437e46789f44d8f (patch) | |
| tree | 430d496c035af6d595a619ddca3b0f59fd002dc9 /net | |
| parent | 6a341729fb31b4c5df9f74f24b4b1c98410c9b87 (diff) | |
| download | linux-stable-f057b63bc11d86a98176de31b437e46789f44d8f.tar.gz linux-stable-f057b63bc11d86a98176de31b437e46789f44d8f.tar.bz2 linux-stable-f057b63bc11d86a98176de31b437e46789f44d8f.zip | |
netfilter: nf_tables: fix ct untracked match breakage
"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@rvf6.com>
Link: https://marc.info/?l=netfilter&m=168294996212038&w=2
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nft_ct_fast.c | 14 |
1 files 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; |