kern/58688: userland panic of kernel via wg(4)

[c%bow.st@localhost]

>Number:         58688
>Category:       kern
>Synopsis:       userland panic of kernel via wg(4)
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Sep 22 18:00:01 +0000 2024
>Originator:     Mathew, Cherry G.
>Release:        10.0
>Organization:
>Environment:
>Description:
$ ifconfig wg0 create;wgconfig wg0 set listen-port 1234;ifconfig wg0 up;nc -v -u localhost 1234

Panics kernel - mbuf double free seems to be the reported cause.

the UDP read may be done via an unprivileged user.


>How-To-Repeat:
ifconfig wg0 create;wgconfig wg0 set listen-port 1234;ifconfig wg0 up;nc -v -u localhost 1234
>Fix: