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[modbus-text-sensor] fix potential buffer overflow (#6993)
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@ -15,7 +15,7 @@ void ModbusTextSensor::parse_and_publish(const std::vector<uint8_t> &data) {
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std::ostringstream output;
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uint8_t items_left = this->response_bytes;
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uint8_t index = this->offset;
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char buffer[4];
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char buffer[5];
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while ((items_left > 0) && index < data.size()) {
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uint8_t b = data[index];
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switch (this->encode_) {
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