Debian had a bug report in January about macchanger silently failing to change the device MAC address, with buggy wifi drivers. Basically, the failure isn't detect because you re-read the MAC from the same data structure which the buggy driver silently failed to modify.
Debian had a bug report in January about
macchangersilently failing to change the device MAC address, with buggy wifi drivers. Basically, the failure isn't detect because you re-read the MAC from the same data structure which the buggy driver silently failed to modify.https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774898;msg=46
The patch to fix it is pretty simple:
https://bugs.debian.org/cgi-bin/bugreport.cgi?att=3;msg=46;filename=patch;bug=774898