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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-07-20 18:22:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-04 12:22:16 +0200 |
| commit | 37fb1aa49cfa538ea5a8db660918fea5dd6ca1e2 (patch) | |
| tree | 38c6872776beb129d7d25a9a533af072b2f82cfa | |
| parent | d5103628648e030fa8d5e7f784f771b4159195a8 (diff) | |
| download | linux-stable-37fb1aa49cfa538ea5a8db660918fea5dd6ca1e2.tar.gz linux-stable-37fb1aa49cfa538ea5a8db660918fea5dd6ca1e2.tar.bz2 linux-stable-37fb1aa49cfa538ea5a8db660918fea5dd6ca1e2.zip | |
netfilter: nft_nat: allow to specify layer 4 protocol NAT only
[ Upstream commit a33f387ecd5aafae514095c2c4a8c24f7aea7e8b ]
nft_nat reports a bogus EAFNOSUPPORT if no layer 3 information is specified.
Fixes: d07db9884a5f ("netfilter: nf_tables: introduce nft_validate_register_load()")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/netfilter/nft_nat.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c index a18cceecef88..04dd813ed775 100644 --- a/net/netfilter/nft_nat.c +++ b/net/netfilter/nft_nat.c @@ -153,7 +153,9 @@ static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr, alen = FIELD_SIZEOF(struct nf_nat_range, min_addr.ip6); break; default: - return -EAFNOSUPPORT; + if (tb[NFTA_NAT_REG_ADDR_MIN]) + return -EAFNOSUPPORT; + break; } priv->family = family; |