Unfortunately I have the same problem in connection with CM 11
A few days ago I bought a used HTC X on ebay.
When I got the unit, I immediately flashed CM11 on it.
After a few shots with the camera, in conjunction with the flash, I've noticed that all the images were yellowish.
At first I thought it was an a hardware issue.
But then I read here and in some other forums that it is probably a kernel issue. So I've tried a stock Sense ROM in conjunction with the fix from above. And with that the pictures were fine. It is therefore definitely a issue kernel / the camera libs.
I I would really like to use a CM Rom and hope that this problem can be fixed.
Or is there maybe already a kernel for CM 11 in which this problem is solved?
Thanks in advance