containerd2: upgrade to 2.3.4 and runc to 1.4.3 - #18777
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Nan Liu (liunan-ms) wants to merge 2 commits into
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containerd2: upgrade to 2.3.4 and runc to 1.4.3#18777Nan Liu (liunan-ms) wants to merge 2 commits into
Nan Liu (liunan-ms) wants to merge 2 commits into
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September 9, 2026 18:48
Update runc to 1.4.3 and build it with Go < 1.25 to retain the established pre-systemcrypto toolchain without an explicit systemcrypto policy opt-out.
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🟡 Changes recommended
Snapshotter availability can be misdetected or remain stale, causing failed sandbox creation or repeated image pulls.
Once you've addressed the issues Copilot identified, you can request another Copilot review.
Pull request overview
Upgrades Azure Linux’s container runtime packages and synchronizes patches and supply-chain metadata.
Changes:
- Upgrades containerd2 to 2.3.4 and runc to 1.4.3.
- Rebases retained patches and removes fixes now provided upstream.
- Updates source hashes, signatures, changelogs, and component manifests.
File summaries
| File | Description |
|---|---|
SPECS/runc/runc.spec |
Updates runc version, commit, and changelog. |
SPECS/runc/runc.signatures.json |
Updates the runc source signature. |
SPECS/containerd2/multi-snapshotters-support.patch |
Rebases multi-snapshotter support. |
SPECS/containerd2/CVE-2026-56852.patch |
Rebases the retained Unicode normalization fix. |
SPECS/containerd2/CVE-2026-53492.patch |
Removes an upstreamed checkpoint fix. |
SPECS/containerd2/CVE-2026-53489.patch |
Removes upstreamed checkpoint hardening. |
SPECS/containerd2/CVE-2026-53488.patch |
Removes upstreamed label filtering. |
SPECS/containerd2/CVE-2026-50195.patch |
Removes an upstreamed checkpoint fix. |
SPECS/containerd2/CVE-2026-47262.patch |
Removes upstreamed user-file bounds. |
SPECS/containerd2/CVE-2026-42506.patch |
Removes an upstreamed HTML parser fix. |
SPECS/containerd2/CVE-2026-42502.patch |
Removes an upstreamed HTML rendering fix. |
SPECS/containerd2/CVE-2026-39882.patch |
Removes upstreamed OTLP response limits. |
SPECS/containerd2/CVE-2026-33814.patch |
Removes an upstreamed HTTP/2 fix. |
SPECS/containerd2/CVE-2026-27136.patch |
Removes an upstreamed tokenizer fix. |
SPECS/containerd2/CVE-2026-25681.patch |
Removes an upstreamed doctype fix. |
SPECS/containerd2/CVE-2026-25680.patch |
Removes an upstreamed parser performance fix. |
SPECS/containerd2/containerd2.spec |
Updates containerd2 and its patch set. |
SPECS/containerd2/containerd2.signatures.json |
Updates the containerd source signature. |
cgmanifest.json |
Records both upgraded dependencies. |
Review details
- Files reviewed: 19/20 changed files
- Comments generated: 2
- Review effort level: Balanced
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| + if _, ok := image.Snapshotters[snapshotter]; ok || len(image.Snapshotters) == 0 { | ||
| + return &image, nil | ||
| + return nil | ||
| + } |
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| + snapshotters := make(map[string]struct{}) | ||
| + for label := range info.Labels { | ||
| + const Prefix = "containerd.io/gc.ref.snapshot." | ||
| + if strings.HasPrefix(label, Prefix) { | ||
| + snapshotters[label[len(Prefix):]] = struct{}{} | ||
| + const prefix = "containerd.io/gc.ref.snapshot." | ||
| + if strings.HasPrefix(label, prefix) { | ||
| + snapshotters[label[len(prefix):]] = struct{}{} |
| Patch17: CVE-2026-37236.patch | ||
| Patch2: fix-TestCgroupNamespace-cgroupv1.patch | ||
| Patch3: CVE-2026-56852.patch | ||
| Patch4: CVE-2026-37236.patch |
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issue (blocking): CVE-2026-37236.patch does not apply cleanly - buddy build failed
Rebase the multi-snapshotter and CVE-2026-56852 patches for containerd 2.3.4, and remove CVE patches that are fixed upstream.
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Summary
Validation