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

Patch Reference:
For pre-requisite

1. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=508a5ab49e83c1ac272108daae9ae92d906cde95
2. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=fabc09641da50196e4d0de949426023baccb41ae
3. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=f15dc1a7de65ab16163908b92cb479c713f8f052

for CVE

1. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=f0c391572604abb82745ac96af942d39f854e990
2. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=9df25774df5c6deef221bfb5b2a629d0066c7faf
3. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=fc32ad12e77b486d3546aeccc0687e3a713561f5
4. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=29025d237545249e271719ecec1ba0ec03c8d2c3
5. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=8f45c59db100a2a51d9a36dffc081068be94e17e
6. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=218e4e08bee6906c43a3b29cdc629f6b92368b14
7. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=a79fb711143eb7e950fda889436bdd46e1515d73
8. https://git.launchpad.net/ubuntu/+source/libvirt/patch/?id=d8e7d974dc418345c1454632d26ed1b59997fc52

Change Log

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

Does this affect the toolchain?

NO

Associated issues

• #xxxx

Links to CVEs

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

Test Methodology

• Pipeline build id: Buddy Build

[Kanishk-Bansal]

Buddy Build

[akhila-guruju]

Buddy Build has passed.
Patch applies cleanly

[Kanishk-Bansal]

Patch Analysis (all patches taken from ubuntu, all applies cleanly)

• 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:

• main ✅ -> [AUTO-CHERRYPICK] Patch libvirt for CVE-2025-12748 - branch main #15539

Auto cherry-pick pipeline run -> https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1030991&view=results