[Medium] Patch rust for CVE-2026-47143

[SumitJenaHCL]

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 rust for CVE-2026-47143.
• The CVE affects the vendored capstone-sys package in Rust 1.90.0.
• Capstone's reduced-X86 decoder can dereference a NULL instruction specification when handling unsupported instruction types.
• The upstream fix has been backported to vendor/capstone-sys-0.17.0/capstone/arch/X86/X86DisassemblerDecoder.c.
• Upstream Patch Reference: capstone-engine/capstone@a020137

This PR also includes two follow-up changes to the same rust spec:

• CVE-2026-25541.patch: narrowed to only the vendored bytes-1.10.1 crate (the version actually built), dropping the unused bytes-1.4.0, 1.7.1, 1.8.0, and 1.10.0 hunks.
• rust-doc license-check warnings: relocated the rustdoc-bundled license texts (webfont / static.files licenses and the SPDX bundle) to %license, and removed auto-generated *bsd* API/platform doc pages whose names trip the license-name heuristic.

Change Log

• new file: SPECS/rust/CVE-2026-47143.patch
• modified: SPECS/rust/rust.spec
• modified: SPECS/rust/CVE-2026-25541.patch

Does this affect the toolchain?

NO

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-2026-47143

Test Methodology

• Local package build was successful.
• Package tests passed with RUN_CHECK=y.
• All rust patches apply sequentially with zero fuzz.
• License-check fix validated against the built rust-doc file tree: the bundled license texts are tagged %license and the flagged *bsd* pages are removed, leaving no license-name matches under the doc directory.

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[SumitJenaHCL]

Buddy Build URL - https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1169578&view=results

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