[FS#994] dnsmasq repeatedly crashes due to invalid write access

[LEDE Bugs]

The following task has a new comment added:

FS#994 - dnsmasq repeatedly crashes due to invalid write access
User who did this - Marcin Jurkowski (marcin1j)

----------
After several days of testing I can confirm that the problem is solved.

As a side note: the code that caused memory corruption seems to be completely removed in version 2.78.
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=994#comment3610