diff options
| -rw-r--r-- | src/lib/protocols/cip.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib/protocols/cip.c b/src/lib/protocols/cip.c index 65dbb9a24..f9412b809 100644 --- a/src/lib/protocols/cip.c +++ b/src/lib/protocols/cip.c @@ -43,11 +43,12 @@ static void ndpi_search_cip(struct ndpi_detection_module_struct *ndpi_struct, ) { u_int8_t num_items = packet->payload[0], offset = 2; - while((num_items > 0) && (packet->payload_packet_len > (offset + 4))) { + while((num_items > 0) && (packet->payload_packet_len > ((u_int32_t)offset + 4))) { // u_int16_t type_id = *((u_int16_t*)&packet->payload[offset]); u_int16_t lenght = (packet->payload[offset+3] << 8) + packet->payload[offset+2]; offset += 4 + lenght; + num_items--; } if(offset == packet->payload_packet_len) { |