jeans/Tasmota
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Fix ModbusBridge buffer overflow (#16979)

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This commit is contained in:
Norbert Richter 2022-11-06 12:32:02 +01:00
parent f76bed338b
commit 050f2e7e61
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2 changed files with 2 additions and 1 deletions
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1
CHANGELOG.md
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@ -24,6 +24,7 @@ All notable changes to this project will be documented in this file.
### Fixed ### Fixed
- Deduplicate code and fix %timer n% rule regression from v12.2.0 (#16914) - Deduplicate code and fix %timer n% rule regression from v12.2.0 (#16914)
- Serial initialization for baudrate and config (#16970) - Serial initialization for baudrate and config (#16970)
- ModbusBridge buffer overflow (#16979)
### Removed ### Removed
- Define ``USE_PN532_DATA_RAW`` from NFC reader (#16939) - Define ``USE_PN532_DATA_RAW`` from NFC reader (#16939)

2
tasmota/tasmota_xdrv_driver/xdrv_63_modbus_bridge.ino
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@ -258,7 +258,7 @@ void ModbusBridgeHandle(void)
WiFiClient &client = modbusBridgeTCP.client_tcp[i]; WiFiClient &client = modbusBridgeTCP.client_tcp[i];
if (client) if (client)
{ {
uint8_t header[8]; uint8_t header[9];
uint8_t nrOfBytes = 8; uint8_t nrOfBytes = 8;
header[0] = modbusBridgeTCP.tcp_transaction_id >> 8; header[0] = modbusBridgeTCP.tcp_transaction_id >> 8;
header[1] = modbusBridgeTCP.tcp_transaction_id; header[1] = modbusBridgeTCP.tcp_transaction_id;