Affected versions of rusb did not require UsbContext to implement Send
and Sync. However, through Device and DeviceHandle it is possible to use
UsbContexts across threads.
This issue allows non-thread safe UsbContext types to be used concurrently
leading to data races and memory corruption.
The issue was fixed by adding Send and Sync bounds to UsbContext.
{
"license": "CC0-1.0"
}