[AutoPR- Security] Patch tmux for CVE-2026-11623 [LOW]

[azurelinux-security]

Auto Patch tmux for CVE-2026-11623.

Autosec pipeline run -> https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1146290&view=results

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

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Summary

What does the PR accomplish, why was it needed?

• Auto Patch tmux for CVE-2026-11623 (LOW).

Change Log

• CVE-2026-11623

Does this affect the toolchain?

YES/NO

Associated issues

• N/A

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-2026-11623

Test Methodology

• Pipeline build id: Buddy Build URL

[v-swapsahu]

The upstream fix relies on the saved_images queue, so I have backported the required prerequisite changes:

• struct field in tmux.h: "struct images saved_images;"
• initialization in screen_init() (screen.c): "TAILQ_INIT(&s->saved_images);"

[akhila-guruju]

Buddy Build has passed.