github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-05 21:15:53 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

netfilter: nf_tables: reject invalid set policy

Browse Source 
[ Upstream commit 0617c3de9b ]

Report -EINVAL in case userspace provides a unsupported set backend
policy.

Fixes: c50b960ccc ("netfilter: nf_tables: implement proper set selection")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Pablo Neira Ayuso 2024-01-03 23:34:58 +01:00 committed by Greg Kroah-Hartman
parent 08aca65997
commit a016aacadf
1 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
net/netfilter/nf_tables_api.c
View File

@ -4990,8 +4990,16 @@ static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info,
}
desc.policy = NFT_SET_POL_PERFORMANCE;
if (nla[NFTA_SET_POLICY] != NULL)
if (nla[NFTA_SET_POLICY] != NULL) {
desc.policy = ntohl(nla_get_be32(nla[NFTA_SET_POLICY]));
switch (desc.policy) {
case NFT_SET_POL_PERFORMANCE:
case NFT_SET_POL_MEMORY:
break;
default:
return -EOPNOTSUPP;
}
}
if (nla[NFTA_SET_DESC] != NULL) {
err = nf_tables_set_desc_parse(&desc, nla[NFTA_SET_DESC]);