diff --git a/epan/dissectors/packet-openflow_v6.c b/epan/dissectors/packet-openflow_v6.c index aab8829fbc..ae016a33eb 100644 --- a/epan/dissectors/packet-openflow_v6.c +++ b/epan/dissectors/packet-openflow_v6.c @@ -1119,17 +1119,23 @@ dissect_openflow_v6_oxs(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, static int dissect_openflow_stats_v6(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_) { + proto_item *ti; guint32 stats_length; int oxs_end; guint32 padding; proto_tree_add_item(tree, hf_openflow_v6_stats_reserved, tvb, offset, 2, ENC_NA); - proto_tree_add_item_ret_uint(tree, hf_openflow_v6_stats_length, tvb, offset+2, 2, ENC_BIG_ENDIAN, &stats_length); + ti = proto_tree_add_item_ret_uint(tree, hf_openflow_v6_stats_length, tvb, offset+2, 2, ENC_BIG_ENDIAN, &stats_length); oxs_end = offset + stats_length; offset+=4; + if (stats_length < 4) { + expert_add_info(pinfo, ti, &ei_openflow_v6_length_too_short); + return offset; + } + while (offset < oxs_end) { offset = dissect_openflow_v6_oxs(tvb, pinfo, tree, offset, oxs_end - offset); }