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[modbus-text-sensor] fix potential buffer overflow (#6993)

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This commit is contained in:
Sergey Dudanov
2024-06-26 14:38:11 +04:00
committed by Jesse Hills
parent c747d7d45d
commit 9c2af6318c
1 changed files with 1 additions and 1 deletions
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esphome/components/modbus_controller/text_sensor/modbus_textsensor.cpp
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@@ -15,7 +15,7 @@ void ModbusTextSensor::parse_and_publish(const std::vector<uint8_t> &data) {
std::ostringstream output;
uint8_t items_left = this->response_bytes;
uint8_t index = this->offset;
char buffer[4];
char buffer[5];
while ((items_left > 0) && index < data.size()) {
uint8_t b = data[index];
switch (this->encode_) {