diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-02-01 23:33:29 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-02-07 22:02:51 +0100 |
| commit | 292781c3c5485ce33bd22b2ef1b2bed709b4d672 (patch) | |
| tree | 4dd03e51952b76aeb0e3caf77824e8f6030d6efe /net/netfilter | |
| parent | 36fa8d697132b4bed2312d700310e8a78b000c84 (diff) | |
netfilter: nft_compat: reject unused compat flag
Flag (1 << 0) is ignored is set, never used, reject it it with EINVAL
instead.
Fixes: 0ca743a55991 ("netfilter: nf_tables: add compatibility layer for x_tables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nft_compat.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c index 001b6841a4b6..ed71d5ecbe0a 100644 --- a/net/netfilter/nft_compat.c +++ b/net/netfilter/nft_compat.c @@ -212,7 +212,8 @@ static int nft_parse_compat(const struct nlattr *attr, u16 *proto, bool *inv) return -EINVAL; flags = ntohl(nla_get_be32(tb[NFTA_RULE_COMPAT_FLAGS])); - if (flags & ~NFT_RULE_COMPAT_F_MASK) + if (flags & NFT_RULE_COMPAT_F_UNUSED || + flags & ~NFT_RULE_COMPAT_F_MASK) return -EINVAL; if (flags & NFT_RULE_COMPAT_F_INV) *inv = true; |