Patch libvirt for CVE-2025-12748

[akhila-guruju]

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 libvirt for CVE-2025-12748
Backported: NO
Pre-requisite patch reference:

1. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=42813e33416a8b4c052829bea5e8a938a7ba9eca
2. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=d7d1c76f23d767698ce0838ec4eddf1b214c4bbf
3. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=1991519ee70ae620312e808c5bfd1bc296208431

CVE-2025-12748.patch patch reference:

1. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=4ceddd072ab794135b59364cb95386ef70b51b92
2. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=97a53db9756cbc880ed3f4dc054e9a15690a2176
3. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=1b8d1bd4b10e8eaa9a247487d709440ebba014ed
4. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=7a62099efb32ca270e1808fead3263569b81eeea
5. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=b4b37eb7ae3296c8b8520b5ad5e4cbce4dbcb8ca
6. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=8928cf500e1a94b6f78bc5b1840fa300f18406dd
7. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=e8e0d3ce28a0856c14d1fe3d2b5977f164938b9a
8. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=6ab6e8705128808aa90b9281bcf046a8cf61dbba

Change Log

• new file: SPECS/libvirt/CVE-2025-12748.patch
• new file: SPECS/libvirt/Pre-CVE-2025-12748.patch
• modified: SPECS/libvirt/libvirt.spec

Does this affect the toolchain?

YES/NO

Associated issues

• #xxxx

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-2025-12748

Test Methodology

• Local Build
• Patches apply cleanly without any modification.

[Kanishk-Bansal]

All the patches are ported from ubuntu for the same version

[Kanishk-Bansal]

remove Patch5: Pre-CVE-2025-12748.patch

[Kanishk-Bansal]

/azurepipelines run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[Kanishk-Bansal]

we tried to fix this check but it was non-trivial #13811 (review)

[Kanishk-Bansal]

Buddy Build

[Kanishk-Bansal]

All patches are taken from Ubuntu supported 10.0.0 release
Patch Analysis (the patches applies cleanly)
nbdkit & libguestfs are known failures

• Buddy Build 
• patch applied during the build (check rpm.log)
• patch include an upstream reference
• PR has security tag

[CBL-Mariner-Bot]

Auto cherry-pick results:

• 3.0-dev ✅ -> [AUTO-CHERRYPICK] Patch libvirt for CVE-2025-12748 - branch 3.0-dev #15512

Auto cherry-pick pipeline run -> https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1027225&view=results