[PATCH 4.19 34/79] netfilter: nft_flow_offload: missing netlink attribute policy

[Greg Kroah-Hartman]

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

[ Upstream commit 14c415862c0630e01712a4eeaf6159a2b1b6d2a4 ]

The netlink attribute policy for NFTA_FLOW_TABLE_NAME is missing.

Fixes: a3c90f7a2323 ("netfilter: nf_tables: flow offload expression")
Signed-off-by: Pablo Neira Ayuso <pa...@netfilter.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 net/netfilter/nft_flow_offload.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index 69decbe2c9884..1ef8cb789c41a 100644
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -149,6 +149,11 @@ static int nft_flow_offload_validate(const struct nft_ctx 
*ctx,
        return nft_chain_validate_hooks(ctx->chain, hook_mask);
 }
 
+static const struct nla_policy nft_flow_offload_policy[NFTA_FLOW_MAX + 1] = {
+       [NFTA_FLOW_TABLE_NAME]  = { .type = NLA_STRING,
+                                   .len = NFT_NAME_MAXLEN - 1 },
+};
+
 static int nft_flow_offload_init(const struct nft_ctx *ctx,
                                 const struct nft_expr *expr,
                                 const struct nlattr * const tb[])
@@ -207,6 +212,7 @@ static const struct nft_expr_ops nft_flow_offload_ops = {
 static struct nft_expr_type nft_flow_offload_type __read_mostly = {
        .name           = "flow_offload",
        .ops            = &nft_flow_offload_ops,
+       .policy         = nft_flow_offload_policy,
        .maxattr        = NFTA_FLOW_MAX,
        .owner          = THIS_MODULE,
 };
-- 
2.20.1