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mavlink: receiver battery_status prevent out of bounds access

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- fixes https://github.com/PX4/PX4-Autopilot/issues/18385
This commit is contained in:
Daniel Agar 2021-10-11 15:26:48 -04:00
parent 12670b70f4
commit fab053d33b
1 changed files with 1 additions and 1 deletions
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2
src/modules/mavlink/mavlink_receiver.cpp
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@ -1730,7 +1730,7 @@ MavlinkReceiver::handle_message_battery_status(mavlink_message_t *msg)
float voltage_sum = 0.0f;
uint8_t cell_count = 0;
while (battery_mavlink.voltages[cell_count] < UINT16_MAX && cell_count < 10) {
while ((cell_count < 10) && (battery_mavlink.voltages[cell_count] < UINT16_MAX)) {
battery_status.voltage_cell_v[cell_count] = (float)(battery_mavlink.voltages[cell_count]) / 1000.0f;
voltage_sum += battery_status.voltage_cell_v[cell_count];
cell_count++;