[Medium] Patch nbdkit for CVE-2025-47711 & CVE-2025-47712

[AkarshHCL]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

---

Summary

Patch nbdkit for CVE-2025-47711 and CVE-2025-47712

For CVE-2025-47711

Patch Modified: No

Astrolabe patch reference:
https://gitlab.com/nbdkit/nbdkit/-/commit/c3c1950867ea8d9c2108ff066ed9e78dde3cfc3f

For CVE-2025-47712

Patch Modified: No

Astrolabe patch reference:
https://gitlab.com/nbdkit/nbdkit/-/commit/a486f88d1eea653ea88b0bf8804c4825dab25ec7

What does the PR accomplish, why was it needed?

Change Log

• SPECS/nbdkit/CVE-2025-47711.patch
• SPECS/nbdkit/CVE-2025-47712.patch
• SPECS/nbdkit/nbdkit.spec

Does this affect the toolchain?

NO

Associated issues

• #xxxx

Test Methodology

1>ptests are failing before applying the patch

And after applying patches too.

2>Patch applies cleanly

[Kanishk-Bansal]

rebase to 3.0-dev