nftables/backport-netlink_delinearize-do-not-transfer-binary-operation-to-non-anonymous-sets.patch
2023-03-24 14:10:12 +08:00

44 lines
1.4 KiB
Diff

From 4dbfa17097512b6b88805299223f93e90a072ea6 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 12 Oct 2022 12:50:26 +0200
Subject: [PATCH] netlink_delinearize: do not transfer binary operation to
non-anonymous sets
Michael Braun says:
This results for nft list ruleset in
nft: netlink_delinearize.c:1945: binop_adjust_one: Assertion `value->len >= binop->right->len' failed.
This is due to binop_adjust_one setting value->len to left->len, which
is shorther than right->len.
Additionally, it does not seem correct to alter set elements from parsing a
rule, so remove that part all together.
Conflict: Remove supplementary test cases
Reference: https://git.netfilter.org/nftables/commit?id=4dbfa17097512b6b88805299223f93e90a072ea6
Reported-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
src/netlink_delinearize.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/netlink_delinearize.c b/src/netlink_delinearize.c
index 55bd0fd..ae6858d 100644
--- a/src/netlink_delinearize.c
+++ b/src/netlink_delinearize.c
@@ -2210,6 +2210,9 @@ static void __binop_adjust(const struct expr *binop, struct expr *right,
binop_adjust_one(binop, right, shift);
break;
case EXPR_SET_REF:
+ if (!set_is_anonymous(right->set->flags))
+ break;
+
list_for_each_entry(i, &right->set->init->expressions, list) {
switch (i->key->etype) {
case EXPR_VALUE:
--
2.33.0