Update default Cloud Hypervisor to v51.2 - #493
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MiguelsPizza wants to merge 1 commit into
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MiguelsPizza wants to merge 1 commit into
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v49.0 and v51.1 are affected by CVE-2026-45782. Embed v51.2 and use it for new instances; keep older versions so existing snapshots restore.
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Cloud Hypervisor v49.0 and v51.1 are affected by CVE-2026-45782 (GHSA-f47p-p25q-83rh). This embeds v51.2 and makes it the default for new instances (with live disk resize, like v51.1); v49.0 and v51.1 stay embedded so existing snapshots still restore.
Tests:
go test ./lib/hypervisor/cloudhypervisor/ -run 'TestCapabilities|TestRegisteredCapabilities'andgo test ./lib/vmm/ -run TestIsVersionSupported(Linux) pass; on main they fail withundefined: vmm.V51_2, and without the capabilities changeTestCapabilitiesAdvertiseDiskResizeOnV51fails for "version v51.2".Note
Medium Risk
Changes the default VMM binary for new VMs (security fix) while keeping older binaries for restore; mis-versioned snapshots could still fail until migrated.
Overview
Adds Cloud Hypervisor v51.2 as an embedded VMM binary (x86_64 and aarch64) and sets
DefaultVersionto v51.2 so new instances launch on the patched release. v49.0 and v51.1 remain embedded for snapshot restore during upgrades.Download/CI paths (
Makefiledownload-ch-binaries,ensure-ch-binaries,.github/workflows/test.yml) now fetch v51.2 alongside the older versions.CapabilitiesForVersiontreats v51.2 like v51.1 for live disk resize; tests andlib/vmmREADME are updated accordingly.Reviewed by Cursor Bugbot for commit 990f1c2. Bugbot is set up for automated code reviews on this repo. Configure here.