tree a01a0137a4193d2d33d61bb43c113afef3e421a6
parent 2db962760426ddb9e266f9a4bc0b274584c819cc
author Paul Jakma <paul.jakma@hpe.com> 1455031383 +0000
committer Paul Jakma <paul.jakma@hpe.com> 1457459602 +0000

lib: Check prefix length from zebra is sensible

* zclient.c: prefix length on router-id and interface address add
  messages not sanity checked.  fix.

* */*_zebra.c: Prefix length on zebra route read was not checked, and
  clients use it to write to storage.  An evil zebra could overflow
  client structures by sending overly long prefixlen.

Prompted by discussions with:

Donald Sharp <sharpd@cumulusnetworks.com>