chore: update UKCI kernels

[kxxt]

Automated UKCI kernel update

Summary by CodeRabbit

• Updates
  • Refreshed the available Linux kernel sources for the 6.1, 6.6, 6.12, and 6.18 LTS series.
  • Updated the 7.2 series to 7.2.9 and the 7.3 release candidate to 7.3-rc6.
  • The 7.2 and 7.3 kernel options remain unavailable for riscv64 targets.

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Project	Deployment	Actions	Updated
tracexec	Ready	Preview	Oct 5, 2026 4:11pm UTC

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ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository: kxxt/tracexec/.coderabbit.yml
• Review profile: CHILL
• Plan: Advanced
• Run ID: 009917ae-9e67-4bf2-8b60-e33038e2ed5d

📥 Commits

Reviewing files that changed from the base of the PR and between ce3abfe and 2ff5214.

📒 Files selected for processing (1)

• nix/ukci.nix

Included review availability: This review used your included allowance. Your plan provides up to 2 included reviews per hour; 1 remain after this review.

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Walkthrough

The kernel source matrix updates the tags and hashes for the 6.1, 6.6, 6.12, and 6.18 LTS entries. It advances the 7.2 entry to 7.2.9 and the 7.3 release candidate to v7.3-rc6. Existing riscv64 exclusions remain unchanged.

Changes

Kernel source matrix

Layer / File(s)	Summary
Update kernel source entries nix/ukci.nix	The 6.1, 6.6, 6.12, and 6.18 LTS entries use updated tags and hashes. The non-riscv64 7.2 entry advances to 7.2.9, and the 7.3 release candidate advances to v7.3-rc6; both use updated hashes. Other source settings remain unchanged.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~4 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 2ff52

The updated kernel sources match their pins and declared versions, with no identified issue blocking merge.

Architecture Summary

Architecture risk: 🔵 Low · up to 2ff52

The change affects 1 system.

Changed systems: nix

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — nix (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in nix/ukci.nix: The 6.1, 6.6, 6.12, and 6.18 LTS entries now use updated kernel tags and corresponding source hashes; their source, test executable, patches, and make flags are unchanged.
• observed — Modified behavior in nix/ukci.nix: The non-riscv64 7.2 entry advances from tag/version 7.2.8 to 7.2.9 with a new hash. The 7.3 Torvalds release-candidate entry advances from v7.3-rc5/version 7.3.0-rc5 to v7.3-rc6/version 7.3.0-rc6 and has a new hash.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the kernel updates in the pull request.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[greptile-apps]

Confidence Score: 5/5

[High risk] Updates kernel versions and checksums in build configuration.

The PR appears safe to merge based on the reviewed changes.

Summary

The PR updates six pinned UKCI kernel releases and their hashes, including four LTS lines, Linux 7.2, and the 7.3 release candidate.

• Kernel matrix names and target selection remain unchanged.
• No actionable issue was established from the changed pins.

_{Reviews (1) · Last reviewed commit: "chore: update UKCI kernels"}