Comment by grawprog

I'm curious now that I read this, this means that web midi can access the virtual midi devices created under alsa on linux also? Which means if you have it routed to other software using Jack or aconnect, websites could send midi notes directly into whatever software your midi device is routed through?

So theoretically then, could a Jack aware payload be created that runs in the background, say disguised as a vst or ladspa plugin and when a user browses a malicious site, this site could, recognize the malicious midi device, create connections to other software and gain access through possible buffer overflows or other things?

It seems like a stream of midi notes could itself possibly cause a buffer overflow in certain programs. Muse and rosegarden are a bit buggy as is and frequently crash for me. From what i can tell there's a lot of midi aware audio software that likely contains a bunch of avenues for exploits and when you throw virtual midi devices into the mix capable of doing far more than hardware midi devices...