Describe the bug

OrbStack Helper crashed while starting the VM on November 6, 2026, at approximately 7:41 a.m. local time. This interrupted my Docker containers, including Immich.

Environment:

• OrbStack 2.2.5 (2020500)
• macOS 27.0.1 (26A434)
• MacBook Pro with M3 Pro

The VM initially booted and the data volume mounted. Shortly afterward, vmgr.log reported:

scon host bridge failed: vmnet start timed out

A few seconds later, OrbStack Helper exited with signal 11. The macOS crash report shows:

Exception: EXC_BAD_ACCESS / SIGSEGV
Subtype: KERN_INVALID_ADDRESS at 0x0000000000002145
Faulting queue: com.apple.framework.vmnet.interface.*

The top frames on the faulting thread were:

• libdispatch.dylib: dispatch_async
• vmnet: __vmnet_start_interface_block_invoke_3
• Netrb: ____NETRBClientResponseHandler_block_invoke

This looks very similar to #2773, including the same OrbStack and macOS versions and the same crash stack.

I have not yet confirmed whether disabling "Allow access to container domains & IPs" prevents the crash.

To Reproduce

I do not yet have reliable reproduction steps. The crash occurred while OrbStack was starting its VM and host network bridge. See the attached diagnostics and crash report for the startup sequence.

Expected behavior

No response

Diagnostic report (REQUIRED)

OrbStack info:
Version: 2.2.5
Commit: bf842321f95fc3ca7cda3227bf0cd41cb188c471 (v2.2.5)

System info:
macOS: 27.0.1 (26A434)
CPU: arm64, 12 cores
CPU model: Apple M3 Pro
Model: Mac15,7
Memory: 18 GiB

Full report: https://orbstack.dev/_admin/diag/orbstack-diagreport_2026-11-07T01-58-54.020694Z.zip

Screenshots and additional context (optional)

No response