smolvm

v1.6.1 Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 12d Virtualization

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

containers crun libkrun microvm rust virtual-machine

Summary

AI summary

Detect stale CUDA guest shim, make VM boot failures diagnosable, and expose the docker‑socket bridge via the machines HTTP API.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	Implement CUDA fork‑independent serving with copy‑on‑fork isolation, graph mode, and network transport. Implement CUDA fork‑independent serving with copy‑on‑fork isolation, graph mode, and network transport. Source: llm_adapter@2026-07-15 Confidence: high	—
Feature	Medium	Expose docker‑socket bridge in the machines HTTP API. Expose docker‑socket bridge in the machines HTTP API. Source: llm_adapter@2026-07-15 Confidence: high	—
Feature	Low	Add CUDA support to VmResources for CLI/SDK via vsock. Add CUDA support to VmResources for CLI/SDK via vsock. Source: llm_adapter@2026-07-15 Confidence: high	—
Feature	Low	Document unix‑socket Docker endpoint and TCP alternative with caveats in docs. Document unix‑socket Docker endpoint and TCP alternative with caveats in docs. Source: llm_adapter@2026-07-15 Confidence: low	—
Dependency	Low	Bump smolvm dependency to version 1.6.0. Bump smolvm dependency to version 1.6.0. Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix
Bugfix	Medium	Fix pacman repo build to package both architectures correctly. Fix pacman repo build to package both architectures correctly. Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix	Medium	Make VM boot failures diagnosable instead of opaque. Make VM boot failures diagnosable instead of opaque. Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix	Medium	Detect stale CUDA guest shim at boot instead of opaque cuInit failure. Detect stale CUDA guest shim at boot instead of opaque cuInit failure. Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix	Medium	Resolve named config.User to numeric uid for crun exec. Resolve named config.User to numeric uid for crun exec. Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix	Low	Warn at launch when CUDA remoting is requested on a host without usable GPU. Warn at launch when CUDA remoting is requested on a host without usable GPU. Source: llm_adapter@2026-07-15 Confidence: high	—

Full changelog

What's Changed

Bump the Nix flake to smolvm 1.6.0 by @BinSquare in https://github.com/smol-machines/smolvm/pull/625
Fix the pacman repo build so it packages both architectures by @BinSquare in https://github.com/smol-machines/smolvm/pull/626
Make VM boot failures diagnosable instead of opaque by @BinSquare in https://github.com/smol-machines/smolvm/pull/627
docs: recommend the unix-socket docker endpoint; document the TCP alternative and its caveats by @BinSquare in https://github.com/smol-machines/smolvm/pull/621
Add cuda to VmResources for CLI/SDK CUDA-over-vsock by @BinSquare in https://github.com/smol-machines/smolvm/pull/628
CUDA fork independent serving: copy-on-fork isolation, graph mode, network transport by @BinSquare in https://github.com/smol-machines/smolvm/pull/629
Detect a stale CUDA guest shim at boot instead of an opaque cuInit failure by @BinSquare in https://github.com/smol-machines/smolvm/pull/630
feat: expose the docker-socket bridge in the machines HTTP API by @BinSquare in https://github.com/smol-machines/smolvm/pull/631
Resolve a named config.User to a numeric uid for crun exec (#632) by @BinSquare in https://github.com/smol-machines/smolvm/pull/634
Warn at launch when CUDA remoting is requested on a host with no usable GPU by @BinSquare in https://github.com/smol-machines/smolvm/pull/635

Full Changelog: https://github.com/smol-machines/smolvm/compare/v1.6.0...v1.6.1

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About smolvm

Tool to build & run portable, lightweight, self-contained virtual machines.

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