diff options
author | Florian Westphal <fw@strlen.de> | 2023-06-21 21:11:03 +0200 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2023-06-26 08:05:57 +0200 |
commit | a412dbf40ff37515acca4bba666f5386aa37246e (patch) | |
tree | d29ebda49810ab08757b1d5c33f2ea6001d04df1 /net/netfilter/nft_bitwise.c | |
parent | 079cd633219d7298d087cd115c17682264244c18 (diff) |
netfilter: nf_tables: limit allowed range via nla_policy
These NLA_U32 types get stored in u8 fields, reject invalid values
instead of silently casting to u8.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nft_bitwise.c')
-rw-r--r-- | net/netfilter/nft_bitwise.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nft_bitwise.c b/net/netfilter/nft_bitwise.c index 84eae7cabc67..14e3c44ef959 100644 --- a/net/netfilter/nft_bitwise.c +++ b/net/netfilter/nft_bitwise.c @@ -86,7 +86,7 @@ static const struct nla_policy nft_bitwise_policy[NFTA_BITWISE_MAX + 1] = { [NFTA_BITWISE_LEN] = { .type = NLA_U32 }, [NFTA_BITWISE_MASK] = { .type = NLA_NESTED }, [NFTA_BITWISE_XOR] = { .type = NLA_NESTED }, - [NFTA_BITWISE_OP] = { .type = NLA_U32 }, + [NFTA_BITWISE_OP] = NLA_POLICY_MAX(NLA_BE32, 255), [NFTA_BITWISE_DATA] = { .type = NLA_NESTED }, }; |