5.8.2 hash randomization backported to 5.6.2
This Socket heap-buffer-overflow goes back to 5.6. This is now finally fixed with 5.14.4 and Socket 2.009.

I guess the security impact is low, you need to reconnect to a AF_UNIX socket and the socket
address is then filled with garbage from kernel memory.
On linux with cpan/Socket/t/Socket.t test 17 sockaddr_un can handle abstract AF_UNIX.
Avoid reading past sun_ad->pv size and zero the uninitialized data.

https://rt.perl.org/rt3//Public/Bug/Display.html?id=111594
https://rt.cpan.org/Public/Bug/Display.html?id=76067