Report ERANGE to userspace if user specifies an expiration larger than
the timeout.
Fixes: 8e1102d5a159 ("netfilter: nf_tables: support timeouts larger than 23 days")
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/netfilter/nf_tables_api.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index da75bc1de466..6c0c6f8a08a8 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -6930,6 +6930,9 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
&expiration);
if (err)
return err;
+
+ if (expiration > timeout)
+ return -ERANGE;
}
if (nla[NFTA_SET_ELEM_EXPR]) {
--
2.30.2
