[FS#251] sending SIGSEGV to dnsmasq for invalid read access from 00000000

[LEDE Bugs]

The following task has a new comment added:

FS#251 - sending SIGSEGV to dnsmasq for invalid read access from 00000000
User who did this - Matthias Schiffer (NeoRaider)

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Still reproducible with current master (r2695-c9c68c71776).
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=251#comment1112