[Medium] Patch perl for CVE-2026-8376

[v-sushilsati]

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 perl for CVE-2026-8376

  • Upstream patch has been backported manually.
  • Patch matches with the upstream patch.
  • Upstream Patch Reference
    The Upstream patch reference in Astrolabe was incomplete.
    Complete patch reference as follows:
    • https://patch-diff.githubusercontent.com/raw/Perl/perl5/pull/24433.patch
      PR - CVE-2026-8376: test against the actual character lengths Perl/perl5#24433

• Updated spec file to make it parsable when executed using "rpmspec" command.

Change Log

-modified: SPECS/perl/perl.spec
-new: /SPECS/perl/CVE-2026-8376.patch

• modified: toolkit/resources/manifests/package/pkggen_core_aarch64.txt
  -modified: toolkit/resources/manifests/package/pkggen_core_x86_64.txt
  -modified: toolkit/resources/manifests/package/toolchain_aarch64.txt
  -modified: toolkit/resources/manifests/package/toolchain_x86_64.txt

Does this affect the toolchain?

Yes

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-2026-8376

Test Methodology

• Local build was successful.

• Patch applies cleanly

• License check script shows no warning.
• Installation and Uninstallation on docker image was successful.

[Kanishk-Bansal]

(.venv) kanbansal@TDC626371074 [ ~/azurelinux/SPECS/perl ]$ rpmspec -P perl.spec
error: Unable to open /usr/src/azl/SOURCES/gendep.macros: No such file or directory
error: line 145: Unclosed %if

[v-sushilsati]

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[v-aaditya]

Buddy Build has been triggered and it has passed !
https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1130904&view=results

[v-aaditya]

Buddy Build has been re-triggered and it has passed !- https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1131863&view=results