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Regression #16980

open

26.07 snapshot panics when WireGuard loads with IIMB enabled

Added by RED SKULL about 13 hours ago. Updated about 13 hours ago.

Status:
New
Priority:
Very High
Assignee:
Kristof Provost
Category:
Upgrade
Target version:
26.07
Start date:
Due date:
% Done:

0%

Estimated time:
Release Notes:
Force Exclusion
Affected Plus Version:
26.07
Affected Architecture:
amd64

Description

I am seeing a repeatable kernel panic after upgrading from the July 27 26.07 snapshot to the July 30 snapshot.

My Working build :
FreeBSD 16.0-CURRENT #60
plus-RELENG_26_07-n256574-9432836c3070

Broken build (this came out today) :
FreeBSD 16.0-CURRENT #65
plus-RELENG_26_07-n256582-d1a90af75647

System :
amd64
WireGuard configured
IIMB crypto enabled

The system boots, starts restoring/configuring packages, and then panics when WireGuard is loaded by ifconfig. This has happened twice on two separate install attempts.

Backtrace :
crypto_freesession() at crypto_freesession+0x1c
wg_module_event_handler() at wg_module_event_handler+0x134
module_register_init() at module_register_init+0x9c
linker_load_module() at linker_load_module+0xdb8
kern_kldload() at kern_kldload+0x165
sys_kldload() at sys_kldload+0x67

The fault is a page fault at address 0x0. The active process is ifconfig, launched by php_wg.

WireGuard and IIMB both work normally on the previous #60 build. The crash happens while the WireGuard module is loading, before any tunnel traffic starts.

Expected : WireGuard should load and the existing tunnels should come up normally.

Reality : The system panics in crypto_freesession() and cannot complete boot on the new snapshot.

Known good : n256574-9432836c3070

Known bad : n256582-d1a90af75647

Full crash report is attached

Files

Crash Report - PFSENSE Plus 26.07.b.20260730.1532.txt (330 KB) Crash Report - PFSENSE Plus 26.07.b.20260730.1532.txt RED SKULL, 07/31/2026 03:31 AM
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