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GCS_MAVLink: prevent devop larger than buffer

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This commit is contained in:
Andrew Tridgell 2022-04-03 08:11:08 +10:00
parent 4c9a851fc6
commit 973befa5d8
1 changed files with 4 additions and 0 deletions
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4
libraries/GCS_MAVLink/GCS_DeviceOp.cpp
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@ -48,6 +48,10 @@ void GCS_MAVLINK::handle_device_op_read(const mavlink_message_t &msg)
retcode = 2; retcode = 2;
goto fail; goto fail;
} }
if (packet.count > sizeof(data)) {
retcode = 5;
goto fail;
}
if (!dev->get_semaphore()->take(10)) { if (!dev->get_semaphore()->take(10)) {
retcode = 3; retcode = 3;
goto fail; goto fail;