diff options
| -rw-r--r-- | net/ipv4/ip_gre.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 6d4b6815aa34..086474b09db0 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -1182,7 +1182,8 @@ static int erspan_validate(struct nlattr *tb[], struct nlattr *data[], if (ret) return ret; - if (nla_get_u8(data[IFLA_GRE_ERSPAN_VER]) == 0) + if (data[IFLA_GRE_ERSPAN_VER] && + nla_get_u8(data[IFLA_GRE_ERSPAN_VER]) == 0) return 0; /* ERSPAN type II/III should only have GRE sequence and key flag */ |