[PATCH 6.1 62/73] netfilter: nf_tables: missing iterator type in lookup walk

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pablo Neira Ayuso <pablo@netfilter.org>

commit efefd4f00c967d00ad7abe092554ffbb70c1a793 upstream.

Add missing decorator type to lookup expression and tighten WARN_ON_ONCE
check in pipapo to spot earlier that this is unset.

Fixes: 29b359cf6d95 ("netfilter: nft_set_pipapo: walk over current view on netlink dump")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nft_lookup.c     |    1 +
 net/netfilter/nft_set_pipapo.c |    3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/net/netfilter/nft_lookup.c
+++ b/net/netfilter/nft_lookup.c
@@ -211,6 +211,7 @@ static int nft_lookup_validate(const str
 		return 0;
 
 	iter.genmask	= nft_genmask_next(ctx->net);
+	iter.type	= NFT_ITER_UPDATE;
 	iter.skip	= 0;
 	iter.count	= 0;
 	iter.err	= 0;
--- a/net/netfilter/nft_set_pipapo.c
+++ b/net/netfilter/nft_set_pipapo.c
@@ -2046,7 +2046,8 @@ static void nft_pipapo_walk(const struct
 	const struct nft_pipapo_field *f;
 	int i, r;
 
-	WARN_ON_ONCE(iter->type == NFT_ITER_UNSPEC);
+	WARN_ON_ONCE(iter->type != NFT_ITER_READ &&
+		     iter->type != NFT_ITER_UPDATE);
 
 	rcu_read_lock();
 	if (iter->type == NFT_ITER_READ)