Earlier quoted context omitted.
It's hard to tell - there doesn't seem to be any proof of this and in the case of leaked code I'd be wanting proof.
I think judge should force Samsung to release all the information they have on history of this code. After all Samsung is suspected of violating the license. Shouldn't they be able to prove copyright before they can claim it?
I doubt this will ever get before a judge, more likely a combination of DMCA takedowns and exclusion from the mainline kernel.