netfilter: nf_tables: selective rule dump needs table to be specified

Table needs to be specified for selective rule dumps per chain.

Fixes: 241faeceb849c ("netfilter: nf_tables: Speed up selective rule dumps")
Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index dcea979423bca2518402fc5b0b10ca5b6ba2b64b..fb07f6cfc71917b13fcb7be0c4954b25f32b1a33 100644 (file)
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2350,7 +2350,7 @@ static int nf_tables_dump_rules(struct sk_buff *skb,
                if (ctx && ctx->table && strcmp(ctx->table, table->name) != 0)
                        continue;
 
-               if (ctx && ctx->chain) {
+               if (ctx && ctx->table && ctx->chain) {
                        struct rhlist_head *list, *tmp;
 
                        list = rhltable_lookup(&table->chains_ht, ctx->chain,