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check M command against max DCC packet size

This commit is contained in:
Harald Barth 2022-08-05 15:15:42 +02:00
parent 6286f5fedf
commit 704fabd1a4

View File

@ -354,7 +354,8 @@ void DCCEXParser::parseOne(Print *stream, byte *com, RingStream * ringStream)
case 'P': // WRITE TRANSPARENT DCC PACKET PROG <P REG X1 ... X9>
// NOTE: this command was parsed in HEX instead of decimal
params--; // drop REG
if (params<1) break;
if (params<1) break;
if (params > MAX_PACKET_SIZE) break;
{
byte packet[params];
for (int i=0;i<params;i++) {