ip_tunnels: record IP version in tunnel info

[deliverable/linux.git] / net / core / filter.c

diff --git a/net/core/filter.c b/net/core/filter.c
index 66500d490995190ab8c890cf1ca2eaa0ef78a8e6..13079f03902e7674b7cd71bf01ca1d12844c758b 100644 (file)
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1493,6 +1493,8 @@ static u64 bpf_skb_get_tunnel_key(u64 r1, u64 r2, u64 size, u64 flags, u64 r5)
 
        if (unlikely(size != sizeof(struct bpf_tunnel_key) || flags || !info))
                return -EINVAL;
+       if (ip_tunnel_info_af(info) != AF_INET)
+               return -EINVAL;
 
        to->tunnel_id = be64_to_cpu(info->key.tun_id);
        to->remote_ipv4 = be32_to_cpu(info->key.u.ipv4.src);