Comment by darylteo

Very easily hidden. Something obtuse like

    (.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)|(.+)

or even this

    (.{4})(.{7})(.{3})(.{6})(.{9})(.{4})(.{7})(.{3})(.{6})(.{9})(.{4})(.{7})(.{3})(.{6})(.{9})(.{4})(.{7})(.{3})(.{6})(.{9})(.{1})

would simply fail to match.

And I wouldn't necessarily blame the developer in either scenario - they received a card that says "hey the channel file will now have an extra field in it's schema"... noone said "btw it's optional".

Calling it a "first year programming mistake" like I'm reading in some media is somewhat incendiary. I see unmarshalling errors happen all the time.

The forest that we must not miss is the kernel-level driver simply dies with no error recovery and bricks the system.