lib/59741: possible issues in inet_cidr_ntop/pton, inet_net_ntop/pton

[campbell+netbsd%mumble.net@localhost]

>Number:         59741
>Category:       lib
>Synopsis:       possible issues in inet_cidr_ntop/pton, inet_net_ntop/pton
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 30 21:30:00 +0000 2025
>Originator:     Taylor R Campbell
>Release:        
>Organization:
The InetBSD Orchards, Inc.
>Environment:
>Description:
We might have the same bugs as FreeBSD had -- FreeBSD patches and new tests here:

https://reviews.freebsd.org/D53488 (inet_cidr_*)
https://cgit.freebsd.org/src/commit/?id=8f4a0d2f7b96099001dbc51e06114df1a0e6d291 (inet_net_*)

(from ivy on libera.chat, haven't investigated any of this myself, not sure exactly what the bugs are, to fill in here when investigated)
>How-To-Repeat:
test cases in freebsd patch
>Fix:
freebsd patch