A French image processing company by the name of DxO Labs has filed a DMCA takedown request targeting 12 GitHub repositories containing device-specific code for ROMs, most of them maintained by CyanogenMod team members. The notice is vague, only citing:

[3] I have a good faith belief that the file downloads identified below (by URL) are unlawful under these copyright laws because among other things, the files circumvent effective access controls and/or copyright protection measures;

[4] Reason:

Content Type: "Custom Firmware" files

Violation(s): Trafficking a device that circumvents effective access controls and/or trafficking a device that circumvents effective copyright protection measures.