From: Pablo Neira Ayuso pablo@netfilter.org

mainline inclusion from mainline-v6.4-rc2 commit e26d3009efda338f19016df4175f354a9bd0a4ab category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9AK6C CVE: CVE-2023-52620

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

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Never used from userspace, disallow these parameters.

Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org

Conflicts: net/netfilter/nf_tables_api.c

Signed-off-by: Zhengchao Shao shaozhengchao@huawei.com --- net/netfilter/nf_tables_api.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index d24e9b7834e4..c13b9fc00ca6 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4425,6 +4425,9 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk, if (!(flags & NFT_SET_TIMEOUT)) return -EINVAL;

+ if (flags & NFT_SET_ANONYMOUS) + return -EOPNOTSUPP; + err = nf_msecs_to_jiffies64(nla[NFTA_SET_TIMEOUT], &timeout); if (err) return err; @@ -4433,6 +4436,10 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk, if (nla[NFTA_SET_GC_INTERVAL] != NULL) { if (!(flags & NFT_SET_TIMEOUT)) return -EINVAL; + + if (flags & NFT_SET_ANONYMOUS) + return -EOPNOTSUPP; + gc_int = ntohl(nla_get_be32(nla[NFTA_SET_GC_INTERVAL])); }