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Follow the guide to enable codebase context checks.

Objective: Ensure all identifiers clearly express their purpose and intent, making code
self-documenting

Status: Passed

Objective: To prevent the leakage of sensitive system information through error messages while
providing sufficient detail for internal debugging.

Status: Passed

Objective: To ensure logs are useful for debugging and auditing without exposing sensitive
information like PII, PHI, or cardholder data.

Status: Passed

Objective: To create a detailed and reliable record of critical system actions for security analysis
and compliance.

Status:
No audit logs: The new behavior of setting mavSystemId from configuration lacks any audit logging of the
change or initialization event, making it unclear when and how the system ID is applied.

mavlinkPort = openSerialPort(portConfig->identifier, FUNCTION_TELEMETRY_MAVLINK, NULL, NULL, baudRates[baudRateIndex], TELEMETRY_MAVLINK_PORT_MODE, SERIAL_NOT_INVERTED);
mavSystemId = telemetryConfig()->mavlink.sysid;

Objective: Ensure comprehensive error handling that provides meaningful context and graceful
degradation

Status:
Missing validation: The assignment mavSystemId = telemetryConfig()->mavlink.sysid; lacks explicit range
validation or fallback handling at runtime in case configuration is invalid or out of
bounds.

mavlinkPort = openSerialPort(portConfig->identifier, FUNCTION_TELEMETRY_MAVLINK, NULL, NULL, baudRates[baudRateIndex], TELEMETRY_MAVLINK_PORT_MODE, SERIAL_NOT_INVERTED);
mavSystemId = telemetryConfig()->mavlink.sysid;

Objective: Ensure all data inputs are validated, sanitized, and handled securely to prevent
vulnerabilities

Status:
Input bounds reliance: While YAML declares bounds 1–255 for mavlink.sysid, the code path that consumes it in
mavlink.c does not enforce validation or sanitization before use, relying solely on
configuration constraints.

- name: mavlink_sysid
  field: mavlink.sysid
  description: "MAVLink System ID"
  type: uint8_t
  min: 1
  max: 255
  default_value: 1

 // Set mavSystemId from telemetryConfig()->mavlink.sysid
-static uint8_t mavSystemId; 
+static uint8_t mavSystemId = 1;

Initialize the static variable mavSystemId to a default value of 1 at
declaration. This prevents it from being zero-initialized to an invalid system
ID, making the code more robust.

src/main/telemetry/mavlink.c [186-187]

 // Set mavSystemId from telemetryConfig()->mavlink.sysid
-static uint8_t mavSystemId;
+static uint8_t mavSystemId = 1;

[Suggestion processed]