target/linux/generic/backport-4.14/358-v4.18-netfilter-nf_flow_table-fix-priv-pointer-for-netdev-.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Tue, 20 Feb 2018 14:48:51 +0100
   3 Subject: [PATCH] netfilter: nf_flow_table: fix priv pointer for netdev hook
   4
   5 The offload ip hook expects a pointer to the flowtable, not to the
   6 rhashtable. Since the rhashtable is the first member, this is safe for
   7 the moment, but breaks as soon as the structure layout changes
   8
   9 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  10 ---
  11
  12 --- a/net/netfilter/nf_tables_api.c
  13 +++ b/net/netfilter/nf_tables_api.c
  14 @@ -4946,7 +4946,7 @@ static int nf_tables_flowtable_parse_hoo
  15                 flowtable->ops[i].pf            = NFPROTO_NETDEV;
  16                 flowtable->ops[i].hooknum       = hooknum;
  17                 flowtable->ops[i].priority      = priority;
  18 -               flowtable->ops[i].priv          = &flowtable->data.rhashtable;
  19 +               flowtable->ops[i].priv          = &flowtable->data;
  20                 flowtable->ops[i].hook          = flowtable->data.type->hook;
  21                 flowtable->ops[i].dev           = dev_array[i];
  22         }