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netfilter: nf_tables: missing attribute validation in nf_tables_delflowtable()

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Return -EINVAL is mandatory attributes are missing.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2018-02-26 13:16:05 +01:00
parent 32fc718751
commit e603ea4ba7
1 changed files with 5 additions and 0 deletions
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5
net/netfilter/nf_tables_api.c
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@ -5161,6 +5161,11 @@ static int nf_tables_delflowtable(struct net *net, struct sock *nlsk,
struct nft_table *table;
struct nft_ctx ctx;
if (!nla[NFTA_FLOWTABLE_TABLE] ||
(!nla[NFTA_FLOWTABLE_NAME] &&
!nla[NFTA_FLOWTABLE_HANDLE]))
return -EINVAL;
table = nf_tables_table_lookup(net, nla[NFTA_FLOWTABLE_TABLE],
family, genmask);
if (IS_ERR(table))