Join GitHub today
GitHub is home to over 28 million developers working together to host and review code, manage projects, and build software together.Sign up
The modprobe fails when the user inserts an invalid prefix length. #78
From RFC 6052, the only valid prefix lengths are 32, 40, 48, 56, 64 and 96.
That crashes the kernel. Apparently, the prefix length validation works as expected, but then at some point the deinit code stumps into invalid memory.
Because it freezes horribly, this is a good candidate for a critical bug, but thankfully the users can work around it easily.