* [PATCH nft] netlink: check key is EXPR_CONCAT before accessing field
@ 2022-02-17 17:09 Pablo Neira Ayuso
0 siblings, 0 replies; only message in thread
From: Pablo Neira Ayuso @ 2022-02-17 17:09 UTC (permalink / raw)
To: netfilter-devel
alloc_nftnl_setelem() needs to check for EXPR_CONCAT before accessing
field_count.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
src/netlink.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/netlink.c b/src/netlink.c
index b6d348321739..ac73e96f9d24 100644
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -135,7 +135,8 @@ struct nftnl_set_elem *alloc_nftnl_setelem(const struct expr *set,
default:
__netlink_gen_data(key, &nld, false);
nftnl_set_elem_set(nlse, NFTNL_SET_ELEM_KEY, &nld.value, nld.len);
- if (set->set_flags & NFT_SET_INTERVAL && key->field_count > 1) {
+ if (set->set_flags & NFT_SET_INTERVAL &&
+ key->etype == EXPR_CONCAT && key->field_count > 1) {
key->flags |= EXPR_F_INTERVAL_END;
__netlink_gen_data(key, &nld, false);
key->flags &= ~EXPR_F_INTERVAL_END;
--
2.30.2
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